SANYO Europe Ltd. Technical Techn ical Train Training ing Depart Department ment UK
Layout Diagram Power Factor Correction
Half Bridge transformer (Run supplies)
PL816 +24V Backlight inverter switched supplies
PL804 +5V & +12V switched supplies
AC mains filter
A C i npu t
Standby SMP transformer
Standby & Run Supplies
17PW26 Layout IC802 PFC SMT (Print side)
IC806 Stby SMP
IC803 Half Bridge (Run supplies)
IC829 5V Stby Reg
IC811 Stby switching opto
Q827 +12V Rectifier
Q828 +24V Rectifier
17PW26 Basic operation The 17PW26 power supply circuitry is very similar to the 17PW20 and operates in the same way. Please refer to the 17PW26 circuit diagram. (next page).
Standby Mode The standby circuit is a switch mode supply (IC806) which supplies always 3.3v and 5V supplies (via 5v Regulator IC829) to supply the CPU, NVM, IR & Keypad. A VF main 12V output is also fed from D807/C801 to switching transistor Q844. Q844 is controlled via opto coupler IC811 from the CPU (PL816 Pin 6) to provide standby / run switching. switching.
Run Mode When Q844 is switched on it supplies VCC2 to IC802 (Power factor correction) and VCC1 IC830(half bridge). The switched run supply secondary voltages are then established.
Protection Q837 FET is connected to pin 2 of IC830. If any of the protection circuits operate, pin 2 is pulled low. IC803 will then cease outputting drive pulses and the run supplies will not be present. Various protection circuits feed into the gate of Q837, as can be seen from the circuit diagram.
L845 22u S822
1 C A
2 V n k 2 4
3 7 8 C
8 1 9 C
S819 GNDCAP1 D800
1
4
1
4 4 9 C
V n 0 5 0 5 2 1
210u L837
GNDCAP
2 m V 0 2 n 0 1 8 0 5 X R 5 2 2 1 T
100uH
2
2
2 C A
L846
3 3 9 C
8 R
7 1 9 C
22u
2 V n 2 k 4
Off1
1
1
V 2 1 +
TR806 PRI SEC SMPS-RESONANT_PFC
6
2
N1
1 L R
6 2 8 S
2
1
RS1008_SOD123
9
N2
1
7
D869
M H 2 1 1 S S E J O _ E F A S _ Y
2 3 3 5 9 9 C C
V u 5 1 2
4 u V 5 5 9 1 2 C
2
3
4
5
BAV70
11
4
5 0 8 C
n 0 V 1 0 5
3
5
PFC_OFF
IRF7314
S1
D1
7
5 7 1 k 8 R 2
S818
R857 12k
1N4148_SOD123
N/OFF
22R R1022
10k R893
2
S1
S3
7
3
S2
NC
6
4
E N /U V
D
5
IC830
3 3 8 C
1
n V 0 0 0 1 5
7
2 +24V
3 L816
10
Q816
6
11
5
122k2
u 0 V 0 5 5 0 8 C 2 7 4
u 1 V 0 1 5 0 9 C 3 0 1
u V 0 0 5 3 0 1
8 4 9 C
A 1
6 2 8 C
u V 0 0 5 1
3 3 4 k 8 9 R 3 4 9 C
3 2 1 D O 0 S 8 _ D V 5 A1 1 C 9 R 4 8 0 7 R 4
8 7 8 C
6 7 8
u 0 V 1 6 1
8 7 5 k 8 R 4
BC848B R850 100k
n V 2 0 1 3 6
n 0 V 0 0 1 5
13
BYV27-200
BC858B Q811
9 k 9 5 3 3 8 8 R 3 C
7 4 R 2 0 4 8 C
2 6 9 C
VFB
2
3 9 8 C
10
PL812
1
O B _ V 2 1 +
14
PL802
0 0 8 L P
L811
15
1
1 2
+12V
n V 1 k 1
+24V
3 STPS_3P_10L60CFP u
1
D857
R863 33k
D811
Q808 BC848B
1 7 9 R
1N4148_SOD123
R972 1k
u C961 V 0 470u 5 0 3 0 1 35V
C931 470u 35V
Q827
n 4 V 0 0 0 9 8 5 1 C
9
+30V
R1017
4
3
5 k 6 8 0 R 1
1N4148_SOD123
Q810
5
D881
D892
K 2
2 5 8 C
STPS_3P_10L60CFP
VCC1
D826
4
+24V
u V 0 0 5 3 0 1
R1036
TNY266
C3V9_SOD123
1k K 2 R974 9
Q803
IC802
1 3 k 9 0 0 R 1
1 4 9 C
4 1 9 C
7 7 k 9 0 R 1
u V 6 1 1 R820
16
+12SV
1 5 8 C
0 V 6 0 1 0 1
u 0 V 6 0 1 0 1
3 6 8 C
4 5
n V 1 k 1
6
R866 10k
B 2 8 1 4 8 8 Q C B
2 k 6 7 8 R 4 n V 0 0 0 1 5
C845
R868 6k8
0 7 2 4 6 k 8 8 C R 8
u V 3 0 3 5
D876 BAV99
1 4 8 C
7
100n 9 R R 3 2 6 50V 8 7 3 0 1
n 0 V 0 0 1 5
R 2 3 R
8
L838
+12V
+12V_1
50R_100MHZ_3A 330R_100MHZ_3A
9
L839
p V 0 7 k 4 1
10
DIM_PWM_ANALOG R1028 2k4 R1038 2k4
PFC_OFF CS1 0
3 8 R
C916 33p 50V
n V 0 1 5
R1021 22R
2 2 k 8 7 R 4
9
A/D_DIM_SEL
330k R817
20R R953
8
SW_OFF2
7 9 4 2 R 8 0 R
7 4 R 0
IC809 Freq
R870 5k1
4
6 4 8 C
2
D819 TL431SAMF2
12 R1016 1R
R878
V u 0 6 1 1
9 u V 5 9 1 6 1 C
u V 0 1 6 1
8 5 9 C
0 6 u V 6 9 1 1 C
u V 0 1 6 1
3 2 1 D O S_ 3 3 C
+33V
PL816 2
1
4
3
6
5
8
7
SW_SWITCH ST_BY BL_ON/OFF DIM_PWM_ANALOG
R876 30k
2n2 50V
5 7 7 k 8 R 4
2 K 1 2 8 D A1
2k7
3 7 5 5 8 9 C C
5 5 8 C
V n 0 2 5 2
11
BL_ON/OFF
+12SV
R874 1k C849
47R R873
9 9 7 V 7 8 A D B
C929 100n 50V C930 100n 50V
+12V
R872 10k
1 8 8 C
V u 6 0 1 1
+24V
R871 +12V_BO 1k
1
n V 0 1 53
VCC1 & VCC2 Run supplies to PFC & Half Bridge Circuits
VCC2
+24V
R1037 +24V_BO 1k
VCC1
8 3 4 1 4 D 8 B Q
S4
1 7 7 9 8 k 4 9 R 4 C
R910 47k
TCET110G
N I A M _ F V
u V 6 1 1
SW_OFF
VCC2 MTP6N60E/SSP7N60A
0 u V 6 7 8 1 1 C
R818 330k
n 0 V 1 k 1
BP
4 k 6 0 8 R 1
PL801
O B _ V 4 2 +
STPS_3P_10L60CFP STPS_3P_10L60CFP Q828
R861 10R
Q838 BC848B
1N5406
27k R819 330k
2 0 9 C
1
R856 4k7
100k R855
2 V n 2 0 5
D805
R823 15R
D1A 8
ZCD +400V
Q807 BC848B
D882 C819 150u 450V
8
D891
Protection Circuit
+400V
1N5406 D883
D2A 6
G1
1 16V 1u C883
D2
S2
2
8 0 8 C
PFC
G2
MTP6N60E/SSP7N60A
Q815
SMPS_TFT_EER35_RES
R860 10R
R852 10k
Q818 BC848B
120k
Q813
n V k 1 1
8 2 9 C
+24V to Inverter Pcb
TR810
1N4148_SOD123
12
VFB
0 1 2 6 7 k 9 8 k 9 9 k 0 0 k 0 k 9 k 9 0 k 0 0 0 9 0 9 0 9 0 9 0 0 1 0 1 1 1 1 1 R 1 R 1 R 1 R 1 R R R
Q814 MTP6N60E/SSP7N60A
D878 BSH103 Q837
3 k 8 7 9 5 9 8 R 1 C
CS1
+24V
2
2k2
W S V W S V
1
+400V
Off1
ZCD
ZCD
2
1N4148_SOD123
Freq
SW_OFF
8 10
2
PL822
Half Bridge Circuit 2 2 (Run Supplies)
Off1
L E R
u V 5 1 2
1
RS1008_SOD123
R976 470R
R1027 100k
6 k 3 7 8 R 4
R897 A 47k
RS1008_SOD123
PL821
1
R952 470R
Freq
4
R970 47k
3 k 0 7 8 R 2
9 2 k u V 0 6 0 1 1 1 8 R 6
9 9 8 C
Off1
3
PL820
1
D875
GNDCAP1
5 2 9 C
D890
R1015
BC858B
3 L I O C 2 _ 4 Y 8 A L L E R
1 C C V
PL819
1
Q839 220k R979
R1035
Power Factor Correction Choke
C934 1u 450V
3 1 8 L P
GNDCAP
4
C802 1u 450V
1 2
22u
2R2
PL818
5 8 k 7 9 1 R
PL809
FUSE_RADIAL
AC3
GNDCAP1
q e r F
1
GNDCAP
V 0 1 5 R A V
TH1 1 0
L817
3
2 V n 2 k 4
F800
S824
22u
1 m 0 2 8 1 R T X 2
5 4 9 C
3 AC2
S820 S821
0 n 0 V 8 0 5 0 5 C 2 1
4 1 8 L P
10R
L818
4
2
S823
AC1
GBU4M L802
AC4
5 1 1 8 L P
2 V n 2 k 4
Standby Switching from CPU 2.9V Stby
7 k 7 3 8 R 3
0V Run
+24V
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
+12V_1
+12V_
+5VSTBY
+33V
+ 3. 3V 3V ST BY
u V 0 0 1 5
4 9 1 8 1 9 C C
5 n V 5 9 1 k 1 C
SMPS_MINIDVB_SINGLE_RANGE
n V 1 k 1
D889 +400V
3 0 9 C
2 1 0 k 1 0 1 R R1013 4k7
4 EN/UV
Opto 3
TNY266 IC806
S2
D
5
NC
6
2
S1
S3
7
1
BP
S4
8
D866
C892 10u 50V
6 0 8 D
5 AC_GND
6
R888
220p 50V
B
4
7
2
8
3 NC
3V3
GND
9
B 5 2UF5402 L 5 1 S 3 P 8 T V C S 5 I 2 4 3 2 1
1
10
26V
BA159
TR803
50R_100MHZ_3A C830 100n 50V
C860 2200u 6V3
0 0 k 8 3 R
3 2 1 D O S 1 8_ 0 8 V D 6 C
V u 6 1 1
R802 33R
+12V
50R_100MHZ_3A L835
VOUT IC829 378L05_TO92 1 C817 2 220u GND 25V
D802
8 3 8 C
6 5 9 C
60R_100MHZ_3A
u V 1 6 1
C803 8 k 0 8 5 1u 1 16V R
gnd2 gnd2
L836
D884
1N4148_SOD123 VF_MAIN
22u
+12V_2
220p 50V
D823 A
4 2 9 C
V u 0 7 5 4 2
IC800
C807 1u 16V
+5VSTBY
5k6 +5V
R804
1n 50V L821
8
D 1A 1A
S1
1
7
D1
G1
2
6
gnd2
50V 100n
5
D 2A 2A
IRF7314
D2
R809 1k
0 R 1 6 8 R 5
S2 G2
C804 R811 1R5
3 4
5V regulators (Run)
4
G2
5V Reg
+12V_2
D2
S2
2
G1
1
S1
5
7 6 8 D
F F O / N O VF_MAIN
Q846 BC848B
10k R1025 C12V_SOD123 R1024 2k4
Q845 BC848B
4
3 2 1 D O S _ 2 V 8 C
D1
C856 1n 50V
1
3
2
IC803 1R R1032 gnd2
gnd2
50V 2n2
SW2
SW1
3k3 R838
R882 10k D851
50V 100n
+12V_2
2n2 4kV
+24VA
u 0 V 0 6 0 1 1
gnVAR-510V d2
9 0 8 C
+24V +30V
g nd2
L826
R814
L822
60R_100MHZ_3A L827
L800
50R_100MHZ_3A L803
50R_100MHZ_3A
22u
330R_100MHZ_3A
PL817 +24V
1
+5V
2
CSSD
C938 10u 16V gnd2
C939 10u 16V
gnd2
u 3 0 V 0 6 2 2
4
1 1 8 C
5
gnd2
+30V
6
50R_100MHZ_3A L824
1k C862
S803
L823 R879 +3.3VSTBY
60R_100MHZ_3A
TL431SAMF2 C847
IC811 1
10k
+5 V
+24VA
3 C942 C943
470p 50V
1k8 R887
S802
A/D_DIM_SEL C935 10u 16V
7
D1A 8
R881 4
+30V
50R_100MHZ_3A
D2A 6
IRF7314
IC801 TCET110G Opto
+12V VCC_ 3V3 _ON
+24V
gnd2
RS1008_SOD123
C5V1_SOD123
R1020 2k2
60R_100MHZ_3A L820
3 R812 gnd2 1R5
50R_100MHZ_3A
1 A 3 0 8 _ L Z H M 0 0 1 _ R 0 5
1N4148_SOD123 C946
R1033 10R
+3.3VSTBY
Standby Circuit
100R R890
RS1008_SOD123 D807 C801 33u 50V
C818 4700u 6V3
+12V
C921
R825 100R
16V
60R_100MHZ_3A L833
L804
D879 C
L825
CSSD
C 8 0 4 0 8 8 C Q B 1N4148_SOD123
L834
100R
5V
100R
7 9 1 0 0 0 R 0 R 1 0 R 1 0 1 0 1 0 R 2 R 2 R 2 3 3 2 2 1 1630V D D O O10n S S C810 _ _ 8 8 0 8 0 0 0 0 8 +400V 1 1 D S S R R
D862
R880 3k
C920
R889
6 8 0 0 0 R 0 0 R 1 0 R 1 0 1 0 1 0 R 2 R 2 R 2
n 0 V 1 k 1
+ 3. 3V ST
3k3 R883
22R
gnd2
+12V
PL804
R884
L819 +12V +3.3VSTBY
IC824
+3.3VSTBY
330R_100MHZ_3A L830
1
17PW26 Socket connections PL816 to Chassis Pcb PL801
Standby Standby 2.9V 2.9V – Run 0V from from CPU CPU PL817
24V Run
Run 24V to BL inverters
30V Run PL802 PL804
12V Run
5V Run
may not be be fitted, fitted, Note:- PL802 & PL817 may depending on PSU version
Standby Supplies
Produced in the UK by Mike Burnett Senior Technical Liaison & Training Engineer SANYO Europe Ltd Watford
