videocon_chassis_mst6m181_lcd_tv_sm_1525414977620.pdf

Chassis Chassis:: - MST6M18 MST6M181 1

This Service manual manual is property of Videocon Industries Ltd.

M/S. VIDEOCON INDUSTRIES LIMITED, 14Km Stone, Stone, Paithan Road, Aurnga Aurngabad, bad, Village Chitegaon, Taluka Paithan, AURANGABAD – 431105, MAHASHTRA, INDIA

MST6M181 SERVICE MANUAL Specs Rev.

Date

Description

Ver.1, Rev 1.0 24.08.2011 Ver.1, Rev.2.0 14.09.2011

Prepared By GANESH LASANE

Chassis Chassis matrix matrix with panel added

GANESH LASANE

INDEX SR. NO.

CONTENT

PAGE NO.

1.

Safety Precautions

05

2.

Servicing Precautions

06

3.

Chassis Specifications

08

4.

Operational Specifications

10

5.

MST181 IC Introduction

15

6.

MST181 Block Dia. And Wiring Diag.

17

7.

Connectors and Electrical Parameters

22

8.

MST181 Critical Components

26

9.

Chassis Variants & Panel Matrix

29

10 .

Software Installation Procedure

31

11.

MST181 Design Data

35

12 .

Troubleshooting

41

13.

Remote Control

52

14 .

Power Supply Unit & Connectors

56

15.

Wall Mounting Instructions.

60

16 .

Common Abbreviations

61

1. Safety Precautions

VIDEOCON CONFIDENTIAL

5

2. Servicing Precautions 3. 2.1 General General Servic Servicing ing Precau Precautio tions: ns: Always unplug lug the the receiver ver AC power cord from the AC power source source before: before: a. Remo Removi ving ng or rein reinst stal alli ling ng any any comp compon onen ent, t, circ circui uitt boar board d modu module le or any other other receiv receiver er assem assembly bly.. b. Disc Discon onne nect ctin ing g or reco reconn nnec ecti ting ng any any rece receiv iver er elec electr tric ical al plug plug or other other electr electrica icall conne connecti ction. on. c. Conn Connec ecti ting ng a test test subs substi titu tute te in para parall llel el with with an elec electr trol olyt ytic ic capaci capacitor tor in the receiv receiver. er. CAUTION: A wrong wrong part part substi substitut tution ion or incorr incorrect ect polari polarity ty instal installat lation ion of electr electroly olytic tic capaci capacitor torss may result result in an explos explosion ion hazard 2. Test high voltage only by measuring it with an appropriate high high volt voltag age e mete meterr or othe otherr volt voltag age e meas measur urin ing g devi device ce (DVM (DVM,, FETV FETVOM OM,, etc) etc) equi equipp pped ed with with a suit suitab able le high high volt voltag age e prob probe. e. Do not not test test high high volta voltage ge by "dra "drawi wing ng an arc". arc". 3. Do not spray chemicals on or near this receiver or any of its assemblies. 4. Unless specified otherwise in this service manual, clean elec electr tric ical al cont contac acts ts only only by appl applyi ying ng the the foll follow owin ing g mixt mixtur ure e to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-abrasive applicator; 10% (by volume) Acetone and 90% 90% (by volu olume) isoprop ropyl alcohol (90 (90%-99% strength) CAUTION: This This is a flamm flammabl able e mixture mixture.. Unles Unlesss specif specified ied otherwi otherwise se in this this serv servic ice e manu manual al,, lubr lubric icat atio ion n of cont contac acts ts in not not requ requir ired ed.. 5. Do not defeat any plug/socket voltage interlo rlocks with ith which receiv receivers ers covere covered d by this this servic service e manual manual might might be equip equippe ped. d. 6. Do not apply AC power to this instrument and/or any of its electr electrica icall assemb assemblie liess unles unlesss all solidsolid-sta state te device device heat heat sinks sinks are correctly correctly installed installed.. 7. Always connect the test rec receive iver ground lead to the the receive iver chas chassi siss grou ground nd befo before re conn connec ecti ting ng the the test test rece receiv iver er posi positi tive ve lead lead.. Alwa Always ys remo remove ve the the test test rece receiv iver er grou ground nd lead lead last last.. 8. Use with this receiver only the test fixtures specified in this servi service ce manu manual. al. CAUTION: Do not connect the test fixture grou ground nd stra strap p to any any heat heat sink sink in this this rece receiv iver er.. 2.2 2.2 Elec Electr tros osta tatic ticall ally y Sensi Sensitiv tive e (ES) (ES) Devi Device ces: s:-- Some semicondu semiconductor ctor (sol (solid id-s -sta tate te)) devi device cess can can be dam damaged aged easi easily ly by stat static ic elec electr tric icit ity. y. Such Such compon component entss common commonly ly are called called Electr Electrost ostati atical cally ly Sensit Sensitive ive (ES) (ES) Devi Device ces. s. Exam Example pless of typic typical al ES devic devices es are are inte integr grate ated d circ circui uits ts and some field ield-e -efffec fect transistor tors and semiconductor "chip" com compon ponents. ts. The The foll follow owin ing g tech techni niqu que es shoul hould d be used to help elp redu reduce ce the the inci incide denc nce e of comp compon onen entt dama damage ge caus caused ed by stat static ic by static electricit electricity. y. 1. Imme Immedi diat atel ely y befo before re hand handli ling ng any any semi semico cond nduc ucto torr comp compon onen entt or semic semicond onduct uctoror-eq equip uipped ped assem assembly bly,, drain drain off any elec electr tros osta tati ticc charg charge e on your your body body by touc touchi hing ng a know known n eart earth h groun ground. d. Altern Alternati ativel vely, y, obtain obtain and wear wear a comme commerci rciall ally y availab available le discha dischargi rging ng wrist wrist strap strap devic device, e, which which shoul should d be remove removed d to preven preventt poten potentia tiall shock shock reason reasonss prior prior to applyi applying ng powe powerr to the the unit unit unde underr test test.. 2. After removing an electrical assembly equipped with ES devices, plac place e the the asse assemb mbly ly on a cond conduc ucti tive ve surf surface ace such such as alumi alumini nium um foil, foil, to prev preven entt elec electr tros osta tati ticc char charge ge buil build d up or expo exposu sure re of the the assembly.

4.

5. 6.

7.

8.

Use Use only only a grou rounded ded-tip -tip solde olderi ring ng iron iron to sold older or unsol nsold der ES devices. Use Use only only an anti anti-s -sta tati ticc type type sold solder er remo remova vall devi device ce.. Some Some sold solder er rem removal oval devic evice es not clas classsifie ified d as "an "anti-s ti-sta tati tic" c" can can genera nerate te electr electrica icall charge chargess suffi sufficie cient nt to damage damage ES device devices. s. Do not use Freon-propelled chemicals. These can generate electr electrica icall charge chargess suffi sufficie cient nt to damage damage ES device devices. s. Do not remove a replacement ES device from its protective packa ackag ge until til imme immed diate iately ly bef before ore you you are are read ready y to ins install tall it. it. (Most replacement ES devices are packaged with leads elec electr tric ical ally ly shor shorte ted d toge togeth ther er by cond conduc ucti tive ve foam foam,, alum alumin iniu ium m foil or compar comparabl able e condu conducti ctive ve materi material) al).. Imme Immedi diat atel ely y befo before re remo removi ving ng the the prot protec ecti tive ve mate materi rial al from from the the lead leadss of a repl replac acem emen entt ES devic device, e, touc touch h the the prot protec ecti tive ve mate materia riall to the the chas chasssis or circ circu uit ass assembl embly y into into whic which h the the devi device ce will will be installed. CAUTION: Be sure no powe ower is appl applie ied d to the the chas chasssis or circ circu uit, it, and observ observe e all other other safety safety precau precautio tions ns.. Minimize bodily motions when handling unpackaged repl replac acem emen entt ES devi device ces. s. (Oth (Other erwi wise se harm harmle less ss moti motion on such such as the the brus rushing ing tog togethe ther of your clothes fabric or the lif liftin ting of your your foot foot from from a carp carpet eted ed floo floorr can can gene genera rate te stat static ic elec electr tric icit ity y suff suffic icie ient nt to dama damage ge an ES devi device ce.) .)

2.3 2.3 Gener General al Sold Solder erin ing g Guid Guidel elin ines es 1. Use Use a grou ground nded ed-ti -tip, p, lowlow-wa watt ttag age e sold solder erin ing g iron iron and and appr approp opria riate te tip tip size size and and shap shape e that that will will maint maintai ain n tip temp temper erat atur ure e withi within n the range range or 500° 500°F F to 600° 600°F. F. 2. Use Use an app approp ropriat riate e gauge auge of RMA RMA resi resin n-cor -core e sold older com compos posed of 60 part partss tin/ tin/40 40 part partss lead lead.. 3. Kee Keep the the sold olderin ering g iron iron tip tip clea clean n and and well well tin tinned ned. 4. Thor Thorou oug ghly hly clea clean n the the surf surfac aces es to be sold solder ered ed.. Use Use a mall mall wire wire-4. bris ristle tle (0.5 inch, or 1.25cm) brush with a metal handle. le. Do not use Freon-pr Freon-propel opelled led spray-on spray-on cleaners. cleaners. 5. Use Use the the foll follow owin ing g unso unsold lder erin ing g tech techni niqu que e a. Allo Allow w the the sold solder erin ing g iron iron tip tip to reac reach h norm normal al temp temper erat atur ure e (500°F (500°F to 600°F) 600°F) b. Heat Heat the the comp compon onen entt lead lead until until the the sold solder er melt melts. s. c. Quic Quickl kly y draw draw the the melt melted ed sold solder er with with an anti anti-s -sta tati tic, c, sucti suction on-type type sold solder er remo remova vall devi device ce or with with sold solder er brai braid. d. CAUTION: Work Work quic quickl kly y to avoid avoid over overhe heat atin ing g the the circ circui uitt boar board d printe printed d foil. foil. 6. Use Use the the foll follow owin ing g sold solder erin ing g tech techni niqu que. e. a. Allow the soldering iron tip to reach a normal temperature (500°F (500°F to 600°F 600°F). ). b. Firs irst, hold old the the solde olderi ring ng iro iron tip tip and and sold older the the stran trand d agai again nst the the comp compon onen entt lead lead unti untill the the sold solder er melt melts. s. c. Quickly move the soldering iron tip to the junction of the com compon ponent lead lead and and the the prin rinted ted circ circu uit foil foil,, and and hold old it the there only until the solder flows onto and around both the comp compon onen entt lead lead and and the the foil foil.. CAUTION: Work Work quic quickl kly y to avoi avoid d over overhe heat atin ing g the the circ circui uitt boar board d printed printed foil. d. Closely inspect the solder area and remove any excess or splash splashed ed solde solderr with a small small wire-br wire-brist istle le brush brush..


6

2.4 2.4 IC Remov Remove/ e/Re Repla place ceme ment: nt:-- Some Some chas chassi siss circ circui uitt boar boards ds have ave slot slotte ted d hole oles (obl (oblon ong g) thro throu ugh whic which h the the IC lead leadss are are inserted and then bent flat against the circuit foil. When hole holess are are the the slot slotte ted d type, type, the the follo followi wing ng tech techni niqu que e shou should ld be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard tech techni niqu que e as outl outlin ined ed in para paragr grap aphs hs 5 and and 6 abov above. e.

2.9 2.9 Fuse Fuse and and Conve Convent ntion ional al Resist Resistor or Removal/Replacement Removal/Replacement :1. Clip Clip each ach fus fuse or res resisto istorr lead lead at top top of the the circ circu uit board oard hollows hollows take. 2. Secu Secure rely ly crimp crimp the the lead leadss of repl replac acem emen entt comp compon onen entt arou around nd notc notch h at stak stake e top. top. 3. Sold Solder er the the conn connec ecti tion ons. s.

2.4.1 IC Removal:1. Desolde olderr and and strai traig ghten ten each ach IC lead lead in one one ope operati ration on by gent gently ly pryi prying ng up on the the lead lead with with the the sold solder erin ing g iron iron tip tip as the solder solder melts melts.. 2. Draw raw away away the the melt melte ed solde olderr with with an anti anti-s -sta tati ticc suctio ction ntype type sold solder er remo remova vall devi device ce (or (or with with sold solder er brai braid) d) befo before re removin removing g the IC. 2.4.2 Replacement Replacement :1. Care Carefu full lly y inse insert rt the the repl replac acem emen entt IC in the the circ circui uitt boar board. d. 2. Carefully bend each IC lead against the circuit foil pad and solde solderr it. 3. Clea Clean n the the sold solder ered ed area areass with with a smal smalll wire wire-b -bri rist stle le brus brush. h. (It is not necessary to re apply acrylic coating to the areas).

CAUTION: Ma Main inta tain in orig origin inal al spaci spacing ng betwe between en the the repl replac aced ed comp compon onen entt and and adja adjace cent nt comp compon onen ents ts and and the the circ circui uitt boar board d to prevent prevent excessive excessive componen componentt temperatu temperatures. res.

2.5 "Small-Signal" Removal/Replacement:-

Discrete

Transistor

1. Remo Remove ve the the defe defect ctiv ive e tran transi sist stor or by clip clippi ping ng its its lead leadss as clos close e as poss possib ible le to the the comp compon onen entt body body.. 2. Bend into a "U” shap shape e the the end end of each each of thre three e lead leadss remain remaining ing on the circuit circuit board. board. 3. Bend Bend into into a "U" "U" shap shape e the the repl replac acem emen entt tran transi sist stor or lead leads. s. 4. Conn Connec ectt the the repl replac acem emen entt tran transi sist stor or lead leadss to the the corres correspon pondin ding g leads leads extend extending ing from the circui circuitt board board and crimp the "U" with long nose pliers to insure metal to metal metal contac contactt then then solde solderr each each conne connecti ction. on. 2.6 2.6 Powe Powerr Outp Output, ut, Trans Transis istor tor Devi Device ce Removal/Replacement Removal/Replacement :1. Heat and remove all solde lder from around the transistor leads. 2. Remo Remove ve the the heat heat sink sink moun mounti ting ng scre screw w (if (if so equi equipp pped ed). ). 3. Care Carefu full lly y rem remove ove the the tran transi sisstor tor from from the the heat sink ink of the the circuit circuit board. board. 4. Ins Insert new new tran transsisto istorr in the the circ circui uitt board oard.. 5. Sold older each ach tran transsisto istorr lead lead,, and and clip clip off off exces cess lead lead.. 6. Repl Replac ace e heat sink. 2.7 Diode Diode Removal/Replacement :1. Remo Remove ve defe defect ctiv ive e diod diode e by clip clippi ping ng its its lead leadss as clos close e as possib possible le to diode diode body. body. 2. Bend Bend the the two two rema remain inin ing g lead leadss perp perpen endi dicu cula larr y to the the circuit circuit board. board. 3. Observing diode polarity, wrap each lead of the new diode arou around nd the the corr corres espo pond ndin ing g lead lead on the the circ circui uitt board board.. 4. Secu Secure rely ly crim crimp p each each conn connec ecti tion on and and sold solder er it. it. 5. Inspect (on the circuit board copper side) the solder joints of the the two two "ori "origi gina nal" l" lead leads. s. If they they are are not not shin shiny, y, rehe reheat at them them and if neces necessar sary, y, apply apply additi additiona onall solde solder. r.

2.10 2.10 Circ Circui uitt Boar Board d Foil Foil Repa Repair ir Exce Excess ssive ive heat heat appl applie ied d to the the copper foil of any printed circuit board will weaken the adhe adhesi sive ve that that bond bondss the the foil foil to the the circ circui uitt boar board d caus causin ing g the the foil foil to separ eparat ate e from from or "lif "liftt-of off" f" the the board oard.. The The foll follow owin ing g guide uideli line ness and and proce rocedu dure ress shou should ld be foll follow owe ed whe wheneve ever this this condit condition ion is encou encounte ntered red.. At IC Conn Connec ecti tion onss To repa repair ir a defe defect ctiv ive e copp copper er patt patter ern n at IC conn connec ecti tion onss use use the the foll follow owin ing g proc proced edur ure e to inst install all a jump jumper er wire on the copper pattern side ide of the circuit board. (Use this this techn techniqu ique e only only on IC conne connectio ctions ns). ). 1. Carefully rem remove the the damage aged copper pattern with ith a shar sharp p knif knife. e. (Rem (Remov ove e only only as much much copp copper er as abso absolu lute tely ly necessary). 2. Carefully scratch away the solder resist and acrylic coat coatin ing g (if (if used used)) from from the the end of the the rem remaini aining ng cop copper per pattern. 3. Bend a small "U" in one end of a small gauge jumper wire wire and and care carefu full lly y crim crimp p it arou around nd the the IC pin. pin. Sold Solder er the the IC connectio connection. n. 4. Route the jumper wire alon long the path of the out-awa away copp copper er patte pattern rn and and let let it overl overlap ap the the prev previo ious usly ly scrap scraped ed end end of the the good good copp copper er patt patter ern. n. Sold Solder er the the over overla lapp pped ed area area and and clip clip off off any any exce excess ss jump jumper er wire. wire.

At Othe Otherr Conn Connec ecti tion onss Use Use the the follo followi wing ng tech techniq nique ue to repa repair ir the the defe defect ctiv ive e copp copper er patt patter ern n at conn connec ecti tion onss othe otherr than than IC Pins Pins.. This This tech techn nique ique invo involv lves es the the ins install tallat atio ion n of a jump jumpe er wire wire on the the comp compon onen entt side side of the the circ circui uitt boar board. d. 1. Remo Remove ve the the defe defect ctiv ive e copp copper er patt patter ern n with with a shar sharp p knif knife. e. Remove at least 1/4 inch of copper, to ensure that a hazardous condition will not exist if the jumper wire opens. 2. Trace along the copper pattern from both side ides of the patt patter ern n brea break k and and loca locate te the the near neares estt comp compon onen entt that that is direct directly ly connec connected ted to the affecte affected d copper copper patter pattern. n. 3. Con Connect insu insula late ted d 20-g 20-gau aug ge jump jumpe er wire wire from from the the lead lead of the neares rest component on one side ide of the patte ttern break to the lead of the nearest component on the other other side. side. Carefu Carefully lly crimp crimp and solde solderr the conne connecti ctions ons.. CAUTION: Be sure sure the the insu insula late ted d jump jumper er wire wire is dres dresse sed d so the the it does does not not touc touch h comp compon onen ents ts or shar sharp p edge edges. s.


7

3. Chassis Specifications

G N I N N U T

PARAMETERS NUMBER OF PROGRAMS TUNING SYSTEM COLOUR SYSTEM NTSC PLAYBACK SOUND SYSTEM CHANNEL NAME (PROGRAM NAME) MANUAL SEARCH FINE TUNE SKIP EXCHANGE CHANNEL (SWAP) INSERT CHANNEL COPY CHANNEL DELETE CHANNEL AUTO DETECTION COLOR AND SOUND SELECTABLE PICTURE MODES

5 MODES

CTI (Colour Transient Improvement) DNR ADAPTIVE LUMA CONTROL ZOOM MODE

E R U T C I P

COLOR IMPROVEMENT 3:2 2:2 PULL DOWN DIGITAL COMB FILTER FREEZE DYNAMIC SHARPNESS DYNAMIC CONTRAST (DCI) BACKLIGHT ADJUST COLOUR TEMP AUTO ADJUST (IN PC) H POSITION (IN PC) V POSITION (IN PC) PHASE (In PC) CLOCK (In PC) ACTIVE COLOUR MANAGEMENT ADAPTIVE CONTRAST AND COLOUR AUTOMATIC IMAGE OPTIMIZATION BLACK STRETCH BLUE STRETCH AVERAGE PICTURE LEVEL (APL) 3D NOISE REDUCTION TEMPORAL NR MODE SELECTABLE SOUND MODES AUTO VOLUME LEVELLER

O I D U A

AUDIO OUTPUT POWER (RMS) MUSIC MODE REVERB STEREO PLAYBACK BASS / TREBLE / BALANCE EQUALIZER NO.OF SPEAKERS

SPECS 200 FS AUTO/PAL/ SECAM YES BG/DK/I YES YES YES YES YES YES YES YES YES

YES YES YES AUTO/4:3/16:9/ZOOM1/ ZOOM2 YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 4 MODES YES 2x5W (22”) +/--1W 2x10W (24”/26”/32”) +/-2W YES NO YES YES/YES/YES 5 BAND 2


REMARKS

Only in AV IN PROGRAM EDIT

IN PROGRAM EDIT IN PROGRAM EDIT IN PROGRAM EDIT IN PROGRAM EDIT VIVID/HIBRIGHT/CINEMA/SPORTS/USER

(Direct Key ON REMOTE)

3D BUILT IN FEATURE BUILT IN FEATURE NORMAL/COOL/WARM

Inbuilt Inbuilt BUILT IN FEATURE

USER/SPEECH/ STANDARD/MUSIC

Eco Vision =Audio Only

120Hz/500Hz/1.5KHz/5KHz/10KHz

8

R E M I T

S E R U T A E F

CLOCK ON CHANNEL OFF TIME ON TIME SLEEP TIMER CLOCK DISPALY AUTO SWITCH OFF (IF NO SIGNAL) PANEL COMPABILITY PANEL BRIGHTNESS PROGRAM DIRECTORY

YES YES YES YES YES YES YES YES YES YES

ECO VISION

YES

OFF/ LOW/ MID /HIGH/AUDIO ONLY

QUICK VIEW HOTEL MODE VOLUME LOCK CHILD LOCK TUNING LOCK SOURCE LOCK (VIDEO LOCK) FRONT PANEL KEY LOCK

YES YES YES YES YES YES YES

In Hotel Mode (PARENTAL LOCK) In Hotel Mode

OSD LANGUAGES(ATV) Full HD panel support BLUE SCREEN

L S E A I R C U E T P A S E F Y T I V I T C E N N O C

T R O P P U S B S U

ENGLISH YES YES

SCREEN SAVER VGA UPDATE S/W(service) Start on predefined Source Start on predefined Channel NO. ENERGY METER BOOT UP SOUND BOOT LOGO CEC CONTROL FAMILY FAVOURITE RF IN AV IN AV OUT DVD COMPATIBILITY (YPbPr/YCbCr) USB INPUT (2.0 SUPPORT) HDMI INPUT PC AUDIO IN PC(VGA IN) STILL PICTURE SUPPORT SUBTITLE IMAGE FORMAT AUDIO FORMAT VIDEO FORMAT H.264 SUPPORT VC - 1 RM,RMVB SUPPORT USB Update SW

(ON REMOTE)

NO YES YES YES YES YES YES YES YES 1 2 1 1 1

In Hotel Mode In Hotel Mode

1 1 1 YES YES JPEG(15360X8640), BMP(9600X6400), PNG(9600X6400). WMA(8K~48KHz), MP3(32K~48KHz), M4A(AAC,8K~48KHz) MPEG1/2/4,H.264,DivX, MOV,RM/RMVB (1280x720 @ 30P), MJPEG (640x480 @ 30P). Support SD ONLY YES (SD 720P) YES (Liscence Req.) YES YES


9

4. Operating Specifications 4.1) Chassis/Panel Specifications SCREEN SIZE

22" 22" HD HD RE READ ADY Y 24" 24" HD HD READ READY Y 24” FHD LED

26" HD READY

32" HD READY

LCD display

55 cm TFT LCD 61 cm TFT LCD

61 cm LED

66 cm TFT LCD

81 cm TFT LCD

1920 (Hor.) X 1080(Vert.)

1366 (Hor.) X 768 (Vert.)

1366 (Hor.) X 768 (Vert.)

Display Resolution

1366 (Hor.) X 768 (Vert.)

1366 (Hor.) X 768 (Vert.)

Viewing 170⁰ (H) x 160⁰ 176⁰ (H) x 178⁰ (H) x 176⁰ (H) x 176⁰ 176⁰(v) 178⁰(v) (v) (v) Angle Lamp life 50,0 50,000 00 hr/ hr/mi min n 30,0 30,000 00 hr/ hr/mi min n 30,0 30,000 00 hr/ hr/mi min n 30,0 30,000 00 hr/ hr/mi min n time AC I/P supply AC 110V 110V ~ 240, 50/60Hz 50/60Hz Vtg. Power 75 W 9 5W 75 W 12 5 W Consumption (MAX) Power <1W Consumption Stand By

178⁰ (H) x 178⁰ ( v)

30,000 hr/min

150W

TV System Receiving Color System

PAL/SECAM/ NTSC [(3.58/4.43)-in playback only] VHF2-12 UHF 21-69 CATV-X-Z+2.S1-S41

Channel Coverage Audio system Antenna Input Impedance

BG/I/DK 75 Ohms Left:-5W/

Audio output Right: Right:-- 5W @ (RMS) 8Ohm Speaker Accessories

Left:Left:-8W/ 8W/ Right: Right:-- 8W @ 8 Ohm Speaker

Left:Left:-10W 10W// Right:Right:- 10W @ 8 Ohm Speaker

1.) Remote handset [V-MT22], 2.) User Guide book, 3.) Power cord (Optional), 4.) Battery UM-4,"AAA"1.5V(2 no.) 5.) LCD Stand Assy.

NOTE:- The specifications above are are subject to change. VIDEOCON CONFIDENTIAL

10

4.2) Multimedia Support Specifications MST6M181 Chassis Multimedia Support Format and Detail Information: File Type

File Format

File suffix

Photo:

JPEG\ BMP\ PNG

.jpg\ .bmp\ .png

Video:

MPEG MPEG1\ 1\ MPEG MPEG2\ 2\ MPEG MPEG4\ 4\ RM\ RM\ RMV RMVB\ MOV MOV\ MJPE JPEG\ DivX

.avi\.mpg\.dat\.vob\.div\.mov\.mk v\.rm\.rmvb\.mp4\.mjpeg\.ts\.trp\. wmv\.asf

Audio

WMA WMA\ MP3\ M4A（ AAC）

.wma\.mp3\.m4a

Photo File Parameter File Format

JPEG

BMP

PNG

Resolution

15360X8640

9600X6400

9600X6400

Compressed Format

Support Range

Progressive JPEG

Only Support 1024x768

Baseline(Standard)

Support

Baseline(Optimize)

Support

Single Color

Support

16 Color

Support

256 Color

Support

16 Bit

Support

24 Bit

Support

32 Bit

Support

Progressive

Support

Interlaced

Only Support 1200x800

Audio File Parameter File Format

Sampling

Baud Rate

Audio Channel

WMA

8K~48KHz

32K~320Kbps

Mono, Stereo

MP3

32K~48KHz

32K~320Kbps

Mono, Stereo

M4A（ AAC）

8K~48KHz

32K~320Kbps

Mono, Stereo


11

Video File Parameter File Format

Support Suffix

Internal Encoder

Resolution

Baud Rate

MPEG1

.DAT\.MPG\.MPEG

/

1280x720 @ 30P

Max 20Mbps

MPEG2

.MPG

/

1280x720 @ 30P

Max 20Mbps

MPEG4

.AVI\ .MP4

DIVX,XVID

1280x720 @ 30P

Max 20Mbps

RM\RMVB

.RM\.RMVB

RV8, RV9, RV10

1280x720 @ 30P

Max 10Mbps

MKV

.MKV\.MOV

MPEG1,2,4

1280x720 @ 30P

Max 20Mbps

MJPEG

.AVI

/

640x480 @ 30P

Max 10Mbps

DivX

.DIVX\.AVI

MPEG,DIVX

1280x720 @ 30P

Max 20Mbps


12

4.3) Source Wise Resolutions Support YPbPr Resolutions :Sr. No.

Mode

Active line & Frame

Timing

Horizontal Freq(KHz)

Vertical Freq(Hz)

1

480i

858 *525

720x480i

100

15.75

60

2

576i

864 * 625

720x576i

101

15.625

50

3

480P

868 * 525

720x480P

103

31.47

60

4

576P

864 *625

720x576P

102

31.5

50

5

720P

1980 * 750

1280x720P

106

37.5

50

6

720P

1650 * 750

1280x720P

107

45

60

7

1080i

2640 * 1125i

1920x1080i

113

33.7

60

8

1080i

2200 * 1125i

1920x1080i

105

33.75

30

Resolution

VGA (RGB) Resolutions :Sr. No.

Name

Resolution

Vertical Freq. (Hz)

1

UXGA

1600*1200

60

2

SXGA

1280*1024

60

3 4

XGA

1024*768

70 75

5

56

6

60

7

SVGA

800*600

72

8

75

9

60

10

72

11

VGA

640*480

12

75 66


13

HDMI Resolutions :-

Sr. No. Mode

Total line Horizontal Resolution Per Frame Freq. (KHz)

Vertical Freq. (Hz)

1

480i

720x480 i

525

15.75

60

2

576i

720x576 i

625

15.625

50

3

480P

720x480 P

525

31

60

4

576P

720x576 P

625

31

50

5

720P

1280x720P

750

45

60

6

1080i

1920x1080

1125

28

50

7

1080i

1920x1080

1125

34

60

8

1080P

1920x1080

1125

56.25

50

9

1080P

1920x1080

1125

67.5

60


14

5. MST181 IC INTRODUCTION INTRODUCTION 5.1) 5.1) IC FUNC FUNCTI TION ONAL AL DE DESC SCRI RIPT PTIO ION: N:-MST6M181VS is a single chip Multimedia TV SoC (System on Chip), that supp suppor orts ts TV chann hannel el dec decoding ding and and media dia – cent centre re func functi tion onal alit ity yenab enable led d by a high high per performa rmance nce AV CODEC DEC and and CPU CPU. It incl includ ude es adv advanc anced moti motion on adap adapttive ive 3D comb filter TV decoder to retrieve the best image from popular composite signals and embedded HDTV/VGA decoders for the high bandwidt idth input signals perfectly reproducing. Key features of the IC are as below:  High High

perfo perform rmanc ance e Micro Micro proce processo ssorr. Suppor ortt USB USB and and ISP ISP prog progrrammi amming ng..  Supp  MP MPE EG-2, G-2, MP MPE EG-4 G-4 and and H.26 H.264 4 Vide Video o Dec Decoder oder..  Real eal Medi Media a dec decoder oder supp suppor orti ting ng max. max. resol esolut utio ion n of 720P 720P@3 @30 0 fram frames es/S /Sec ec.. Support rtss NTSC NTSC// PAL-B AL-B G/SE G/SECA CAM M Stan Standa darrds.  Suppo  Suppo upporrts Digi Digittal Audi Audio o form ormat dec decodin ding: MP MPE EG-1 G-1, MP MPE EG-2 G-2, MP MP3 3, AACAAC-LLC, WMA.  Audi Audio o •

•

•

Inte Interf rfac ace: e: I2S I2S Digi Digittal audio udio inpu inputt and and outpu utput. t. HDMI HDMI audi audio o chan channe nell proc proces essi sing ng.. Prog Progrramma ammabl ble e dela delay y for Audi Audio o Vide Video o Synch ynchrroniz onizat atio ion. n.

 Analog log •

•

•

•

•

 •

•

•

•

RGB ports and Detection: Suppor ports PC RGB I/p up to SXGA@75Hz. Supports Supports HDTV/ HDTV/ RGB/YPbPr RGB/YPbPr/Y /YCbCr CbCr.. Autom Automati aticc Color Color Calibr Calibrati ation. on. Auto Auto I/p I/p sig signal nal form ormat & Mode Mode Det Detectio tion. Sync ync det detecti ectio on for H/V H/V Sync. nc. DVI/HDMI I/P Port: One HDMI HDMI/D /DV VI Inpu Inputt port port. HDMI1.3/1. HDMI1.3/1.4 4 complian compliant. t. Supp Suppor ortt HDMI HDMI CEC CEC Func Functi tion on.. Robus obustt recei eceive verr with with Long Long cable able supp suppor ort. t. VIDEOCON CONFIDENTIAL

15



M-star Advance Color Engine: -

•

Fully programmable programmable multifunction scaling engine.

•

Advance video processing engine. 3D video deinterlacer with edge and artifact smoother. Automatic 3:2/2:2/M:N pull-down detection and recovery. 3D noise reduction for lousy air/cable input. Motion Adaptive SNR. Arbitrary frame rate conversion.

•

• •

•

•


16

6. MST181 BLOCK DIA. AND WIRING DIAGRAM 6.1) Maj Major compo mponents in MST6M1 6M181 chas hassis are as below 1. N401 N401 MS MST6 T6M18 M181 1 is the Main IC. 2. Power ower mana manage geme men nt of LDO LDO volt voltag age e outp output ut follo ollowi wing ng:: a. N45 N452 outp output ut volt volt:: 3.3V .3VSTB ± 0.1V, b. N45 N453 outp output ut volt volt:: 3.3V .3V ± 0.1V, c. N45 N454 outp output ut volt volt:: 2.5V .5V ± 0.1V, d. N451 N451 outp output ut volt volt:: 1.25 1.25V V ± 0.1V, 3. Tunin uning g circ circui uitt of tune tunerr type type is HFT2 HFT2-8 -8C/ C/T1 T116 16V V.The The colo colour ur syst system em PAL/S AL/SEC ECAM AM and and sound sound syst system em BG/I/ BG/I/DK. DK. 4. N901 – TDA7491 is the the Digi Digita tall audi audio o ampl amplif ifie ierr. Outp Output ut powe powerr opti option on 2x10 2x10W/ W/st ster ereo eo.. 5. N602 MX25 MX25L320 L3205DM2 5DM21 1 is the FLASH LASH IC for soft softwa warre stora orage and operation. 6. N2 N201 01 HY HYNI NIX X – H5DU2562GTB-FAC is the the DDR2. R2.

6.2) BLOCK DIAGRAM MST6M181 CHASSIS

R E K A E P S

POWER XS501

DIGITAL AMP. N901

LVDS OUT XS401

IR+KEY CONN. XS605

DDR2 N201

FLASH N602

MST6M181VS N401

USB IN XS391

HDMI IN XS001

VGA AUDIO XS104

VGA IN XS351

YPbPr IN XS2

AV1 IN XS381


AV2 IN XS382

AV OUT XS331

RF TUNER A702

17

6.3) MST181_System MST181_System Architecture

5VSB

N452 _ 3.3V STB REGULATOR 3.3V Input Jack P / I B S U

1 9 5 S X

P / I I M D H

1 0 0 S X

O I D U P A / I A G V P / I A G V P / I r P b P Y P / I 1 V A P / I 2 V A T U O V A R E N U T

1 9 5 S X

2 8 3 S X 1 3 3 S X 2 0 7 A

N451_ 1.26V CORE POWER

5V

N453 _3.3VDD REGULATOR

HDMI I/P FLASH MEMORY N602

VGA AUDIO I/P

3.3V

5V

VGA (R G B) I/P

COMPONENT I/P

N401 MST6M181VS

DRAM DDR2 N201

I2S L1/R1 I/P

2 S X

24V= TO PANEL 12V

USB I/P

1 5 3 S X 1 5 3 S X

POWER SUPPLY

CVBS I/P CVBS I/P AV OUT Digital IF OUT 1 Digital IF OUT 2

3D Video decoder 3D De-Interlacing 3D COMB Filter Audio Processor

N454 DRAM SUPPLY REGULATOR

2.5V

N901 Audio Amp TDA7491P 12V

DIM BLK Cntrl.

Inverter (Backlight)

LVDS Power LVDS Data LVDS CLK

Logic Board (Display)

24V

Color Codes: AUDIO VIDEO POWER SIGNAL VIDEOCON CONFIDENTIAL

18

6.4) SYSTEM WIRING DIAGRAM

IR BOARD

KEYBOARD

LCD PANEL T E K C O S S D V L

INVERTER

POWER SUPPLY

L A T S Y R C

T E K C O S S D V L

D R A O B R E W O P M O R F P 1 9 4 7 A D T

S V 1 8 1 M 6 T S M N O C I M

1 0 2 N

2 R D D

1 0 4 Y

1 0 4 N

h s a l F

2 0 6 N

1 0 9 N

AC INPUT 110V ~ 240V


19

6.5) POWER DISTRIBUTION IN CHASSIS

+3.3VSTB

N905 – AUDIO IC SUPPLY

TUNER +5V

N701 – REG. 7805

12V

+30V +30V FOR TUNER BACKLIGHT CONTROL

5V

MICON +3.3VA/VDD 3.3V

N453 – AMS1117 N454 – AMS1084

+2.5V

+2.5V

N451— N_SY8132

DDR2 1.26V CORE SUPPLY

+3.3VSTB

M S T 6 M 1 8 1

N452 – AMS1084

5VSTB

+3.3VSTB IR/LED _ KEYBOARD

N602 – FLASH IC - W25X W25X32 32


20

6.6) Actual Chassis Photograph

RF TUNER

AV OUT SOCKET IR+KEY SOCKET

AV2 IN SOCKET AV1 IN JACK

LVDS SOCKET

MST6M181 MICON

YPbPr IN SOCKET

VGA SOCKET

DDR2

FLASH IC VGA AUDIO SOCKET

POWER SOCKET

HDMI IN SOCKET

AUDIO AMPLIFIER

USB IN PORT


21

7. Connectors and Electrical Parameters Parameters 7.1) POWER CONN. VOLTAGES XS501 Sr. no. 1 2 3 4 5 6 7 8 9 10 11

5V 5V 5VSTB STB GND GND GND

Voltages (stand by) 0V 0V 5V 0V 0V 0V 0V

Voltages (on condition) 5V 5V 5V 5V 0V 0V 0V

12V 12V ADJ BLON

0V 0V 0V 0V

12V 12V 0.972V 4.65V

Pin connection

7.2) IR & Key Board Connector XS605 Voltages at ON condition (V)

NO.

Symbol

Function

Voltages at Stan Standb dby y (V) (V)

1

GND

GND

0

0

2

KEY1

KEY VOLTAGE

3.31

3.31

3

GND

GND

0

0

4

KEY0

KEY VOLTAGE

3.31

3.31

5

LED-R

LED VOLTAGE

0

2.59

6

5VSTB

5V STAND BY SUPPLY

5.1

5.1

7

LED-B

NA

8

IR

IR SIGNAL TO MICON

4.99

4.96


22

7.3) Key Voltage Matrix KEY MATRIX MATRIX XS605 KEY

VOLTAGE AD1

VOL+

0.069

VOL-

2.258

CH+

1.363

VOLTAGE AD2

CH-

2.865

MENU

2.258

TV/AV

1.363

STANDBY

0.069

7.4) Audio Connector Configuration AUDIO OUTPUT CONN (XS901) NO.

Symbol

Function

1

L_OUT+

L_OUT+

2

GND

GND

3

GND

GND

4

R_OUT+

R_OUT+


23

7.5) LVDS Connector XS401 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Symbol LVDS_Vcc LVDS_Vcc GND LVDS_Vcc GND GND RX00RX00+ RX01RX01+ RX02RX02+ GND GND RX0CRX0C+ RX03RX03+ NC NC RXE0RXE0+ RXE1RXE1+ GND GND RXE2RXE2+ RXECRXEC+ GND GND RXE3RXE3+ NC NC SEL T1_SEL NC NC

Function PANEL VDD PANEL VDD

Parameter +5V/+12V +5V/+12V

PANEL VDD

+5V/+12V 0V 0V Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v 0V 0V Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v 0V 0V Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v 0V 0V Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v Vpp: 3.3v 3.3V 3.3V


24

8. MST6M181 CRITICAL COMPONENTS COMPONENTS 8.1 CRITICAL COMPONENT LIST SAP CODE

DESCRIPTION

QTY. LOCATION

FUNCTION

CRYSTAL,HC49,24MHZ 1100077466 ,+/20PPM,20PF,MST182

1

Y401

Crystal

1100064121

TUNER,XUGUANG,HFT 2-8C/T126CW,MT8223L

1

A702

DIP TUNER

1100078109

IC,CHIP,MICON,LQFP21 6,MST6M181VSP

1

N401

MICON

1100058644

IC,CHIP,TSOP66,H5DU2562GTR-FAC

1

N201

DDR2

1100049334

IC,CHIP,SOP8,MX25L32 05DM2I-12G

1

N602

FLASH

1100058379

IC,CHIP,SOP36,TDA749 1P

1

N901

AUDIO AMPLIFIER

1100047972

IC,CHIP,TO2523,7805/AZ7805

1

N701

LDO TUNER POWER +5V

1100077439

IC,Regulator,SY8132 DC to DC 2A,MST182

1

N451

LDO IC DDR 5V TO 1.26V Micon Core Supply

1100047970

IC,CHIP,SOT223,G11173.3V

1

N452

LDO IC STAND STAND BY VTG. +5VSTB TO 3.3V

1100047970

IC,CHIP,SOT223,G11173.3V

1

N453

3.3V SUPPLY FOR FLASH IC

1100040077

FB,CHIP,1206,120 OHM@100MHZ,2A

1

J506/J507

IC,CHIP,TO1100041520 252,LM1117DTX-ADJ

1

N454


5V/12V PANEL SELECTION COIL 2.5V SUPPLY REGULA REGULATOR TOR FOR DDR2 IC

25

8.2) CRITICAL C RITICAL IC VOLTAGES VOLTAGES N602

A702

N701

N452/N453

Pin No. 1 2 3 4 5 6 7 8

Pin Label

Standby (V)

CS# S_Q WP#VPP VSS S_D SCLK HOLD# VCC

0 0 0 0 0 0 0 0

On Condition (V) 3 .3 1 .0 8 3 .3 0 0 0 3 .3 3.3

IC Function

Flash IC

Voltage (Volts)

Pin No.

Pin Label

1

AGC

2V

2

BT_30

3 2 .4 8

3

AS

0

4

SDA

5

5

SCL

5

6

5VA

5

7

BT_TEST

6.9

8

DIF OUT2

0

9

DIF OUT1

0

Remark

WITH SIGNAL

Voltage changes according to freq and Signal Strength

Pin No.

Pin Label

Standby On Cond Condit itio ion n (V) (V) IC Func Functtion ion (V)

1

IN

0

12

2

OUT

0

5

3

ADJ/GND

0

0

Tuner Power +5V

Pin No.

Pin Label

Standby (V)

On Condition (V)

1

ADJ/GND

0

0

2

OUT

3 .3

3.3

3

IN

5

5


IC Function

3.3V LDO

26

8.3) AUDIO AMPLIFIER STA559BW CONNECTION DIAGRAM


27


28

9. CHASSIS CHA SSIS VARIANTS & PANEL MATRIX MATRIX 9.1) CHASSIS VARIANTS : -

PART CODE

DESCRIPTION

PURPOSE

USED IN

1200 120004 0452 5271 71 CHAS CHASSI SIS, S,AS ASS SY,LCD ,LCD,, MST6M181,HD,5V,D C,VID

5V DC CHASS CHASSIS IS FOR VIDEOCON LCD MODELS

VRL22HBQ-FLA VRL22HGQ-FLA VRL24HBQ-FLA VRL24HGQ-FLA VRL24HMQ-FLA VLL24HBQ-FLA

1200 120004 0452 5272 72 CHAS CHASSI SIS, S,AS ASS SY,LCD ,LCD,, MST6M181,HD,12V, DC,VID

12V DC CHASSIS FOR VIDEOCON LCD MODELS

VRL26HGQ-FLA VAM26HGQ-FLA VRL32HPQ-FLA

1200 120004 0460 6080 80 CHAS CHASS SIS, IS,MST1 MST181 81,,24 12V PWM "LED,FHD,PWM,VID CHASSIS FOR EOCON VIDEOCON LED MODELS

V24530FQ V24550FQ

1200 120004 0454 5417 17 CHAS CHASS SIS, IS, MS MST181 T181,, 5V,22"24",HD,DC,SANSUI

5V DC CHASS CHASSIS IS FOR SANSUILCD MODELS

S2280YH-Q S2490YH-Q S2490YG-Q

1200 120004 0460 6078 78 CHAS CHASS SIS, IS, MS MST181 T181,, 12V,26"32",HD,DC,SAN

12V DC CHASSIS FOR FOR SANSU SANSUII LCD LCD MODELS

S2690YH-Q S3230YV-Q S2630YV-Q

1200 120004 0491 9102 02 CHAS CHASSI SIS, S,AS ASS SY,LCD ,LCD,, MST181,5V,DC,VID, WO,LCK

5V DC VIDEOCON LCD SPEAKER HEADER W/O LOCKING

VLL22HBQ-FLA


29

9.2) PANEL VCC SELECTION: For Panel VCC selection, Provision of Ferrite bid is given in chassis, as Shown below. below.

1.) For 22”/24”/32” 5V panel, Add Ferrite bid at location J506. 2.) For 26”/32” 12V Panel, Add Ferrite bid at location J507 .

3.) For DC to PWM or PWM to DC panel pan el there is no change required In chassis. Only panel selection and panel type selection required in Design data.

SEGMENT

PANEL TYPE

CHANGES

22” LCD

5V, DC PANEL

Add J506

24” LCD

5V, DC PANEL

Add J506

24” LED

12V PWM panel

Add J507

26” LCD

12V, DC DC AND PWM PANEL

Add J507

32” LCD

12V, 12V, DC AND AND PWM PANEL

Add J507


30

10. SW INSTALLATION PROCEDURE The SW installation in MST181 chassis can be done with USB in two procedures. 1.) Set in Stand by condition. 2.) In Set ON condition.

9.1.) SW installati installation on in Stand By condit condition ion: -` Sr. No.

STEPS

A

Copy the SW .bin file from computer to Root of our USB drive.

B

Rename the SW .bin File as VIDEOCON.bin.

C

Keep the set in Mains Power OFF condition.

D

Plug in the USB drive In USB port of LCD.

E

Now Now Plu Plug g in in the the Ma Main inss Po Power of of LCD LCD..

F

The The RED RED LED LED indi indiccat ato or will ill glo glow.

G

After 2-3 Sec. the LED will Start Blinking (RED-BLUE in bicolor LED and RED – No color I single color LED).

H

After few Seconds, Seconds, the LED blinking will stop and LED will glow RED and then will become BLUE or no color and set will be released from Stand by i.e. will become ON.

PHOTOS


31

The set is in M-Node now. now. Then go to I Design Menu by Pressing MENU => AUDIO MENU MENU => 8 5 3 2

Go to Setup design menu and Select J Clear EEPROM option and press OK key of remote.

After Clear EEPROM, the set will go to K stand by and will again restart automatically in RF source. Then verify the modelwise Audio/ Video settings as per Design data. L Verify the SW date and version in Version info menu of Design data Then press Shipping in Setup design menu by pressing OK key key of remote, M then Switch OFF and again Switch ON the SET. The SW loading process Is complete.


32

10.2) SW installation in ON Condition

Sr. No.

STEPS

A

Copy the SW .bin file from computer to Root of our USB drive.

B C

PHOTOS

Rename the SW .bin File as VIDEOCON.bin Keep th the se set in in ON ON co condition.

D

Plug in the USB drive In USB port of LCD.

E

Then go to Settings menu and Select Software Update Feature and press OK

F

Then a Pop up window will appear on screen. Press left navigation key of rremote rremote or VOL- key of TV front key key panel for SW update. Or press Right navigation key of remote or Vol+ key of TV front Key panel to cancel SW update.

G

If select YES, then the SW loading will start. The SW loading progress will display on screen.


33

After SW loading is complete i.e. 100%, H the set will go to stand by automatically and will restart again.

The set is in M-Node now. now. Then go to I Design Menu by Pressing MENU => AUDIO MENU MENU => 8 5 3 2

Go to Setup design menu and Select J Clear EEPROM option and press OK key of remote.

After Clear EEPROM, the set will go to K stand by and will again restart automatically in RF source. Then verify the modelwise Audio/ Video settings as per Design data. L Verify the SW date and version in Version info menu of Design data Then press Shipping in Setup design menu by pressing OK key key of remote, M then Switch OFF and again Switch ON the SET. The SW loading process Is complete. VIDEOCON CONFIDENTIAL

34

11. DESIGN DAT DATA FOR MST181 CHASSIS 11.1) VIDEO ADJUSTMENT PARAMETERS

MODE

PICTURE MODE

W/B ADJUST

PARAMETER PICTURE MODE Brightness Contrast Color Sharpness Tint SOURCE Temperature R_Gain G_Gain B_Gain R_Cut G_Cut B_Cut SUB Bright SUB Contrast SOURCE

DESCRIPTION This setting is used to adjust the different Picture modes paramet parameter er values. values. These values will be displayed in the User menu

These settings are are used to set the White White balance data for Different panels, in different sources.

Temperature R_Gain Offset G_Gain Offset WB OFFSET

B_Gain Offset R_Cut Offset G_Cut Offset B_Cut Offset SUB Bright Offset

These paramet parameters ers are used to adjust the OFFSET values of WB data. In RF normal norma l values are set directly and other color temp are adjusted with FFSET values.

SUB Contrast Offset VIDEOCON CONFIDENTIAL

35

MODEL

PARAMETER

DESCRIPTION

SOURCE/MODES BRIGHTNESS CONTRAST PICTURE CURVE

SATURATION SHARPNESS

These These parame paramete ters rs are used to adjust the Picture parameter values for all sources.

HUE RGBVGA R_Gain

G_Gain B_Gain ADC ADJUST

R_Cut G_Cut B_Cut

The calibr calibrati ation on is used in YPbPr and VGA sources, to set the color and resolution of these sources.

Auto ADC

Note:- Video settings for Different AV source may be different depending on measurements.


36

11.2) AUDIO ADJUSTMENT PARAMETERS

PARAMETER Mode OSD_0 OSD_25 Volume OSD_50 OSD_75 OSD_100 OSD_0 OSD_25 Treble OSD_50 OSD_75 OSD_100 OSD_0 OSD_25 Bass OSD_50 OSD_75 OSD_100 120Hz 500Hz BAND MAX 1.5KHz 5KHz 10KHz Audio Mode Trible Bass 120Hz Audio Mode 500Hz 1.5KHz 5KHz 10KHz MODEL

DESCRIPTION

This is volume volume curve curve for TV. It is different for each source.

This is curve for TREBLE. The Treble is same for all sources

This is curve for TREBLE. The Treble is same for all sources

These These are are the the Gains Gains settings for different equalizer settings.

These are the settings used for for diff differen erentt Audio modes and the same will be displayed in User Menu.


37

MODEL Speaker Selection SRS SRS Setting Select Audio On Music VoL.

PARAMETER

22S12

OFF 2 .0 10

DESCRIPTION This is selection for Model wise Audio selection. When change the selection, the Pre adjusted Audio settings will be enabled. NA NA NA This is level level setting for set start ON Music Volume Level.

Note:- Audio settings for Different AV source audio modes may be different different depending on measurements.


38

11.3) SETUP DESIGN PARAMETERS

PARAMETER

MODEL

DESCRIPTION

Clear EEPROM

To clear all the EEPROM data. To be used after SW loading or any abnormality in Set

IR Select

This is selection for for Remote Remote control control Option e.g. VIDEOCO/SANSUI

Keyboar d Select

Keyboard.M .MS ST

Burning

Power Status Boot Logo

This is is se selection fo for Ke Keypad type.

Off

This is is burning burning mode. mode. If made ON, ON, then RED/GREEN/ BLUE raster will flash on screen continuously

Off

This is for Status of set after Power Power OFF. OFF. i.e. if made on set will go to St. by mode or will become ON or Last status before poewr poewr off. off.

VIDEOCON

This is Boot logo selection.

Panel Type Lvds Lvds Mapping Mappi ng

Panel Control

Panel Data settings

Design Set Back light Way

DC/PWM DC/PWM sett setting ing

Back Light Curve

Backlight curve-5 po point

TV AV1 AV2

Source Switch

YPbPr VGA

This is for Source Source selection as per model specifications

HDMI Multimedia d2h

M-Mode Clone

Off Clone Out Data Clone Data Into

M-Mode for Production VIDEOCON CONFIDENTIAL

For EEPROM Programming

39

MODEL

PARAMETER OSD Language Ecovision Energy Meter Back Light

Feature Switch

Shipping Sw Version: HW Version

Demo EOPS EOPS Mode Icon Num POS 1 POS 2 POS 3 POS 4 POS 5 POS 6 POS 7 POS 8 POS 9 POS 10 POS 11 CEC Function Hotel Mode Timer Menu Blue Back

DESCRIPTION OSD language selection as per model specifications ECOVision feature ON-OFF selection Energy Meter feature ON-OFF selection Backlight feature ON-OFF selection in Setting menu

This is E-OPS featur feature. e. With selection selection pf the features at different positions, the EOPS feature feature in User menu if made ON, then it displays the features selected in this list with their short description

CEC feature ON-OFF selection Hotel mode feature ON-OFF selection Timer menu feature ON-OFF selection Black Back feature ON-OFF selection If selected selected Shipping, Shipping, then all change changess made in User menu and all design parameters, get changed to Factory settings for that model

MST181_0.2.05This is SW version information 20110718_V_HY MST6M181VSP-Version This is SW version information 2.1(2011-05-20)

Note:- The Design data Can be different depending on Model/Panel Used/Speakers Used. So, kindly refer the Design data provided by fact actory ory for part partiicular ular Model odel depe depend ndi ing on SW Versi ersion on used used.. VIDEOCON CONFIDENTIAL 40

12. MST181 TROUBLE SHOOTING 12.1) No Power Condition

Power Supply : MAGMEET Check supply voltage on main socket & main lead

Check power socket connection & mains lead continuity

Abnormal

Normal Check fuse continuity (F-1)

Abnormal

Replace fuse (F-1)

Normal Remove CN2 & Check +5V supply voltage on pin no. 3 CN2

Abnormal

Check 350V supply on mains filter ( EC-2)

Normal Normal Short pin no 2 & 3 of CN2 and check 12V supply on pin no. 8 & 9 of CN2 Normal Remove supply section connectors and insert again

Check MOSFET ( AND P-2)

Abnormal

Replace defective parts Normal

Abnormal

Check rectifier Diodes ( D1, D2, D3, D4) Abnormal Replace defective parts

Power supply OK VIDEOCON CONFIDENTIAL

41

12.2) No Picture Condition Abnormal Check all connectors connection, remove and connect again

Connect properly

Normal Abnormal Check supply voltage at XS501 - 5V on pin no. no. 1 - 12V on pin pin no. no. 8 & 9

Check power supply

Normal

Check backlight signals (On & bright) 5V on TP 105 & TP 106

Normal

Panel Problem

Check 5V supply sup ply at LVDS connector Pin no.1,2,4 of XS401

Abnormal

Main board faulty


42

12.3) No Sound Condition

Abnormal Check connectors and speaker

Reconnection / Re solder, Change speaker

Normal Abnormal Check 12V supply on R952

Check 12V supply at pin no.8 & 9 of XS501 Abnormal

Normal

Check Power supply

Check input signals in RF and A/V Normal Abnormal Check A/V Section Section if no sound on A/V

Change Main Board

Check RF Section if no sound on RF

Normal

Change main board


43

12.4) RC Not Working

Abnormal Check remote battery

Change battery

Normal

Abnormal Check 5V supply on IR sensor

Check voltage 5VSB at PIN 3 of XS501 Abnormal

Normal

Check Power supply conn and power supply

Abnormal Check remote pulse on IR out

Check Remote board Abnormal

Normal Change Remote

Check remote selection in Design data

Abnormal

Change data as per make & spec.


44

12.5) No HDMI Display/Audio

Abnormal Check I/P signal and connection

Correct signal and connection

Normal

Check Source selection in main menu

Abnormal Change selection and check

Normal Check voltage 5V on R011 & R012

Normal

Check related I/P tracks

Normal

Change main board


45

12.6) No VGA Display

Check connection and signal cable

Abnormal Change cable and correct connection

Normal Check Source selection in main menu

Check input signal, Resolution & frequency

Abnormal Change selection and check

Abnormal

Change resolution & frequency as per model spec.

Normal Check 5V supply on VD506

Normal Change main board


46

12.7) Stand By Mains LED red, Set off Release by remote control or control knob LED Status Blue

LED Status Red Check flash IC Abnormal

Check stand by voltage 3~4V at pin no.3 of XS501

Connect USB with SW file and Switch On the set Abnormal

Check voltage 5V at pin no. 1 & 2 of XS501

LED blinking starts and SW gets loaded Abnormal

Check regulator voltage:

Replace the the Main board

IC No. Voltage N45 1

1 . 2 6V

N45 2

3 .3 V

N45 3

3 .3 V

Normal Change main board

Abnormal Replace defective part


47

12.8) ScreenFlickering ScreenFlickering Abnormal Connect properly

Check input connections

Normal Abnormal Remove and reconnect

Check inside connectors

Normal

Abnormal Check power supply

Check power supply (12V filter) Normal

Replace main board Abnormal

Check back light adjust voltage 5V at pin no. 10 of XS501

Normal Panel faulty fault y, Change panel


48

12.9) No Chanel Search

Abnormal Check input RF signal and connection Normal

Connect properly

Abnormal

Check 5V supply on tuner

Check IC N701 and replace

Normal Change Tuner


49

12.10) No Signal – A/V & RF

Check input signal and connection

Abnormal

Connect properly

Normal Abnormal

Select as per signal source

Check OSD selection Normal

NG on RF

NG on A/V

Conditions Check tuner

Normal Abnormal Check voltage 5V on TUNER PIN

Check related parts & track of A/V section

Check 12V at XS501 and 5V on output of N701 Abnormal

Normal

Normal Replace main board


50

12.11) Chanel Skip-RF

Abnormal Check input RF signal and connection

Connect properly

Normal Abnormal Select correct tuner as per PCB

Check tuner type in SVC data Normal Abnormal Check input signal level through db meter

Ask to customer to correct correct input signal strength from local distribution center


51

13. REMOTE CONTROL 13.1) REMOTE CONTROL PHOTO & KEY CODES


52

13.2) REMOTE CONTROL KEY DESCRIPTION DESCRIPTION


53


54


55

14. Power Supply and Connectors 14.1) Power Supply

AC INPUT SOCKET

LINE FILTER

MAINS ELICO TRANSFORMER

+5V & 5V_STB SUPPLY SUPPLY O/P HEADER

+12V & +24V PANEL SUPPLY O/P HEADER


56

14.2) Connectors 14.2.1) POWER CONNECTOR 1100078870

On Power Supply

Locking header end – on chassis


57

14.2.2) SPEAKER CONNECTOR 1100078873

Locking type Conn. On chassis at XS901

Open end for connecting to Speakers


58

14.2.3) POWER CONNECTOR 1100078872

Locking type Conn. On chassis at XS605

For IR Board

For Key Board


59

15. Wall Mounting Instructions


60

16. Abbrevations COMMON ABBREVIATIONS USED IN AUDIO/VIDEO TFT

Thin Film Transistor

LCD

Liquid Crystal Display

PSU

Power Supply Unit

Conn

Connector

SCL

Serial Clock

SDA

Serial Data

PAL

Phase Alteration by Line (Color System)

NTSC

National Television System Committee

SECAM

Sequential Color And Memory

DNR

Dynamic Noise Reduction

AVL

Auto Volume Leveler

PWM

Pulse Width Modulation

VGA

Video Graphics Array

SVGA

Super Video Graphics Array

X-VGA

Extended Video Graphics Array

W-XGA

Wide Ex Extended Gr Graphics Ar Array

DAC

Digital to Analog Converter

ADC

Analog to Digital Converter

USB

Universal Serial Bus

H DM I

High De Defination Mu Multimedia In Interface

CVBS

Composite Video Baseband Signal

LVDS

Low Voltage Differantial Signal

EEPRO EEPROM M

Electr Electric icall ally y Er Erasable asable Progr Programm ammabl able e Read Read Only Only Memo Memory ry

DDR

Dual Data Rate Memory

LDO

Low Drop Output Regulator

Tx

Transmission

RX

Receiption

UART

Universal Asynchronous Re Receiver & Transmitter

SW

Software

CEC

Consumer Electronic Control VIDEOCON CONFIDENTIAL

61

videocon_chassis_mst6m181_lcd_tv_sm_1525414977620.pdf

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