Vestel 17PW26 TM PDF [PDF]

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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