46 0 2MB
17PW26 Power Supply Technical Overview
SANYO Europe Ltd. Technical Training Department UK July, 2009-v1
Layout Diagram Power Factor Correction
Half Bridge transformer (Run supplies)
PL816 +24V Backlight inverter switched supplies
PL804 +5V & +12V switched supplies
AC mains filter 2
AC input
Standby SMP transformer
Standby & Run Supplies
Copyright© SANYO Electric Co., Ltd. All Rights Reserved 2007
17PW26 Layout IC802 PFC SMT (Print side)
IC806 Stby SMP 3
IC803 Half Bridge (Run supplies)
IC829 5V Stby Reg
IC811 Stby switching opto
Q827 +12V Rectifier
Q828 +24V Rectifier
Copyright© SANYO Electric Co., Ltd. All Rights Reserved 2007
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.
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. 4
Copyright© SANYO Electric Co., Ltd. All Rights Reserved 2007
R815 2k7
5
8 D881
PL802 PL800
C878
1
+12V_BO
14
D811
+24V
C863
C851
16V 1000u
+12SV
16V 1000u
16
4 5
1n 1kV
C893
2
+12V
3
1
D857
1
L811
15
2
1n 1kV
0R47 C842
R971
50V
100n C894
VFB
10
PL812
Q827
1N4148_SOD123
R972 1k R863 33k
C961 470u 35V
C962
C931 470u 35V
35V 1000u
BYV27-200
12n 630V
13
3
9
+30V
R1017
4
6
R866 10k C845
7 8
L838
+12V
R1023
33R
100n 50V
100n 50V
R869 27R
D876 BAV99
C841
50V 33u
C840 R867 8k2
R868 6k8
+12V_1
50R_100MHZ_3A 330R_100MHZ_3A
9
470p 1kV
10
47R R873
C33_SOD123
10u 16V
1u 16V C959
C957
C853
160V 1u
A D821 K 1 2
2
1
4
3
6
5
8
7
SW_SWITCH ST_BY BL_ON/OFF
R876 30k
2n2 50V R875 4k7
D819 TL431SAMF2
PL816
+12SV
R874 1k C849
C881
16V 10u
BAV99 D877
+12V
R872 10k
+33V
10u 16V
2
2k7
1u 16V C960
1
3
R871 +12V_BO 1k
R878
C958
1n 50V
C846
4
12 R1016 1R
C855
R870 5k1
11
BL_ON/OFF
C929 100n 50V C930 100n 50V
Standby Switching from CPU 2.9V Stby
+24V
R877 33k
0R47
R829
0R47
R830
Freq
+24V
R1037 +24V_BO 1k
IC809
1n 50V
C941
R931 100k
CS1
VCC1 & VCC2 Run supplies to PFC & Half Bridge Circuits
VCC2
+24V
R1038 2k4
PFC_OFF
R820
DIM_PWM_ANALOG
0V Run
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
26
25
28
27
+12V_1
+12V_1
+5VSTBY
+33V
10
26V
+12V_2
220p 50V
BA159
C817 2 220u GND 25V
D884
TR803
+12V
gnd2 +5VSTBY
60R_100MHZ_3A
5k6
6
D2A
5
D2
G1
IRF7314
1
C804 R811 1R5
2
S2
3
G2
4
4 G2
D2 5
S2
2 G1 1
5V Reg
+12V_2
5V regulators (Run)
S1
D1A 8
60R_100MHZ_3A L827
50V 2n2
R882 10k
SW2
AC1
AC1
1M R980
1M R912
1M R940
4
2
1 L829
AC4 3
AC3
AC2
4
2
1 L841
AC3
AC2
VCC1 BC858B Q822
R918 10k
D850
C868
R982 1M
AC4 AC1 3
AC2
AC3
R981 1M
1M SW1
TL431SAMF2
R944 47k
R917 220k
4
1M
1u 16V
3
R932
R941 100k C886
AC2
AC1
R1003 120R R915
R914 1M
RS1008_SOD123
R921 1k
1u 16V C887
AC4
R913 1M
Q820 BC848B
BC848B Q831
22k R965
D854 Q834 BC848B
R824 3k3
R919 SW_OFF2
Q841
2
BAT54J
4 +5V
L844 50R_100MHZ_3A L843 330R_100MHZ_3A
5 6
+24V A D847 K 1 2
+5V
17PW26 Generic Circuit Diagram
S Links fitted will depend on specific model
All outputs may not be used and will depend on specific model
17PW26 REV:01
C6V8_SOD123
R1030 6k8
1u 16V
4
D861
5
S
C922
D3
1u 16V
NTGS3446
1
3
UMB ISTEGI 26" EK OPSIYON VCC_3V3_ON 10u 16V C951
G
S801 S817
D2
3
50R_100MHZ_3A
BC858B
BL_ON/OFF
6
16V 100u
100R R846
D4
C837 C950
2
12k
330R_100MHZ_3A L830
3v3 switch
C22V_SOD123 D887
VCC1
R948
R949 1k8
Q833 BC848B
Supply rail protection
47k R920 47k
12k R933
D885 1N4148_SOD123
BC848B Q806
D1
C901
Under 170V AC shutdown
56k R947
1
1k8 R831
16V 10u
33R R832
1N4148_SOD123
L840 1
D842
R962 6k8
+12SV
2k2 R1031
2n2 4kV
D888
ST_BY
BC848B
L832 SW_SWITCH R1014 100R 330R_100MHZ_3A C915 47n ST_BY 50V
1N4148_SOD123
R892 10k
D832
2
PL804
+3.3VSTBY
100n 50V
Q802
C824
SW2
4M7 C813
R839 3k3
R960
R964 100k
R828 47k
BC848B
IC824
+3.3VSTBY
R966 10k
Q804
Standby switching Opto
+3.3VSTBY
6
L819
1u 16V
BC848B
10k R833
+30V
+12V
C913
10k R834
5
gnd2
R884
D865
2
gnd2
4
gnd2
+12V
2n2 4kV
+12V_2
C939 10u 16V
60R_100MHZ_3A
22R
1N4148_SOD123
R838
3k3 R883
16V 1u
3k3
TCET110GQ805
AC1
+3.3VSTBY
C862 TL431SAMF2
R826 1k8
1
1
50R_100MHZ_3A L824
1k
C874 R946 10k
4
330R_100MHZ_3A
2
gnd2
R879
C847
IC811
+24V +5V
L823
50V 100n
D851
SW1
3
R1026 390R
10k
BC848B Q830 R942 560k
Q845 BC848B
R887
R945 100k
C12V_SOD123 R1024 2k4
2
100n 50V
10k R1025
3
22u
C938 10u 16V
470p 50V
1k8
R959 100k
Q846 BC848B
C8V2_SOD123
D867
ON/OFF VF_MAIN
C856 1n 50V
1
PL817
50R_100MHZ_3A L803
CSSD
C942 C943
R881 4
gnd2
3
1R R1032 gnd2
gnd2
+30V
L822
L800
50R_100MHZ_3A
IC803
IC801 TCET110G Opto
L801
gnd2 VAR-510V R814
D1 7
gnd2
RS1008_SOD123
C5V1_SOD123
C935 10u 16V
D2A 6
IRF7314
+24VA
A/D_DIM_SEL
50R_100MHZ_3A
L826 R809 1k
+24VA
60R_100MHZ_3A L820
3 R812 gnd2 1R5
S803
+5V
+24VA
C809
D1
R804
+5V
S1
50R_100MHZ_3A
D1A
S802
+30V
16V 1000u
D801
R808 15k C807 1u 16V
50R_100MHZ_3A L835
IC829VOUT 378L05_TO921
L821
8 7
R802 33R
1n 50V
C904
A
D807 C801 33u 50V
L836
100R R890 D823
1
gnd2
50V 100n
+24V
C811
16V
C803 1u 16V
gnd2
C921
R825 100R
IC800
D802
+12V VCC_3V3_ON
6V3 2200u
9
Q800 BC848C
Standby Circuit
+400V 3 NC
C6V8_SOD123
C924
250V 47u
IC831 STPS5L25B 25V
2 4
GND
R1033 10R
1N4148_SOD123
+3.3VSTBY
50R_100MHZ_3A C830 100n 50V
C860 2200u 6V3
1
8
UF5402
3
2
3V3
22u C818 4700u 6V3
+12V
R800 3k
R1010 20R
R1008 20R 20R
R1011 20R
B
1N4148_SOD123 VF_MAIN
D866
C892 10u 50V
C
RS1008_SOD123
D862
R880 3k
D879 7
4
60R_100MHZ_3A L833
L804
R1020 2k2
50R_100MHZ_3A
1N4148_SOD123 C946
10u 16V
8
220p 50V
100R
CSSD
R810 56R
S4
R888
1u 16V
1 BP
5V
C956
7
L834
100R
C838
S3
6
16V 1u
S1
2
20R
R1006 20R
NC 6
5 AC_GND
630V 10n C810 D880
IC806
RS1008_SOD123 R1009
D 5
RS1008_SOD123 R1007
R1012 10k
10n 1kV
TNY266
S2
C920
R889
D806
3
L825
D889
C903
4 EN/UV
Opto
+3.3VSTB
SMPS_MINIDVB_SINGLE_RANGE
1n 1kV
1n 1kV C955
C919
50V 10u
C814
+3.3VSTBY
R1013 4k7
R1002 10k
7 STPS_3P_10L60CFP
STPS_3P_10L60CFP BC858B Q811
Q808 BC848B
C852
35V 1000u
6
122k2
5
D892
BC848B R850 100k
5
1
D
R865 10k R891 4k7 C947
Q810
R1001 10k
R1000 10k
R999 10k
R998 10k
R997 10k
R996 10k +24V_BO C948
C911 35V 1000u
C850 25V 4700u
Q816
DIM_PWM_ANALOG
+400V
D886
35V 1000u
R864 10k
1n 1kV
100n 50V
11
4
+24V
VCC1
R859 33k C839
C826
10u 50V 16V 10u
A D809 K 1 2
10n 1kV
C902
EN/UV
50V 22n
BD138 Q844
6
3 L816
22R R1022
ON/OFF
VCC1
2 +24V
R1036
TNY266
4
10
R1028 2k4
C916 33p 50V
R1021 22R
R822 47k
6
1N4148_SOD123
VCC1
VF_MAIN
NC
IC830
C3V9_SOD123
TCET110G
10k R893
S2
1
L839
C914
R977 10k
1u 16V
330k R817
20R R953
3
7
PL801
A/D_DIM_SEL
IC802
1u 16V C870
C808 R818 330k
1k R974
Q803
27k R819 330k
9
VCC2 MTP6N60E/SSP7N60A
ZCD +400V
1N4148_SOD123
R823 15R
D1A 8
7
SW_OFF2
D805
S818
1N5406
D1 7
S1
S3
A D826 K 1 2
R857 12k Q838 BC848B
R843 3k3 C949
IRF7314
S1
R856 4k7
R910 47k
R849 470R C15V_SOD123
1
1N5406 D883
2
R861 10R
100k R855
+400V
PFC_OFF
VCC1
1k5 R978 Q807 BC848B
D882
D2A 6
2 G1
16V 1u C883
D2 5
S2
8
BC848B Q812
VSW 10n 50V
C805
R803 27k
3
S4
100n 50V
1u 25V
1u 25V C954
VSW
PFC
4 G2
120k
BP
Protection Circuit
Q818 BC848B
VFB
1
R852 10k
SW_OFF
C819 150u 450V
8
STPS_3P_10L60CFP STPS_3P_10L60CFP Q828
1N4148_SOD123 D878 BSH103 Q837
12
CS1
MTP6N60E/SSP7N60A
Off1
ZCD
ZCD
Q813
Q815
SMPS_TFT_EER35_RES
1N4148_SOD123
100n 50V R862 47k
11
+24V to Inverter Pcb
TR810
2k2 SW_OFF
8 10
+24V
2
R860 10R
R858 4k7
5
Half Bridge Circuit 2 (Run Supplies)
Q814 MTP6N60E/SSP7N60A
2n2 50V
4
2
+400V
Freq
R973 15k C898
3
C928
R836 47k BAV70
R970 47k
2
2
D891 C925
4
2
S826
1
RL1
3
+12V 2
RS1008_SOD123
1
2
Off1
R897 47k C932 C953
7
D869
25V 1u
N2
1
R1029 680k
R1027 100k
3
9
PL822
1
RS1008_SOD123
Freq
RS1008_SOD123
PL821
1
R952 470R
C833
2n2 4kV
Off1
RELAY_SAFE_OJE-SS-112HM
TR806 PRI SMPS-RESONANT_PFC SEC N1
L842
4 RELAY_COIL 1 D890
PL820
1
D875
R976 470R
R1035
6
R1015
BC858B
GNDCAP1
GNDCAP
2R2
PL819
1
Q839 220k R979
1u 16V
GNDCAP1
PL818
1
PL814
Freq
2
Off1
22u C917
2n2 4kV
2
AC3
Power Factor Correction Choke
C934 1u 450V
GNDCAP
1
FUSE_RADIAL
1u 16V
L817
PL809
C899
R801
TH1
22u
C802 1u 450V
F800
S824
22u
3
2
L846
10R
1
4
C945
C800 250V 150n
3
AC2
S821
C933
2
AC2
1
S823
L818
100uH S820
PL815
GNDCAP
TR801 2X12m
1
4 TR802 250V 2X12m 150n
210u L837
C944
250V 150n
1
GBU4M L802
AC4
VAR-510V
GNDCAP1 AC1
D800
PL813
S819
2n2 4kV
C918
4kV 2n2
AC1
22u S822
C873
L845
+24V
Components may be MODE deleted, depending on thePOWER specific model SUPP RESONANT TFT
17PW26 Socket connections PL816 to Chassis Pcb PL801
Standby 2.9V – Run 0V from CPU PL817
24V Run
Run 24V to BL inverters
30V Run PL802 PL804
12V Run
5V Run
Note:- PL802 & PL817 may not be fitted, depending on PSU version
Standby Supplies
Produced in the UK by Mike Burnett Senior Technical Liaison & Training Engineer SANYO Europe Ltd Watford
7
Copyright© SANYO Electric Co., Ltd. All Rights Reserved 2007