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TV4K-NICAM / A2 STEREO
COLOUR TELEVISION RECEIVER

SERVICE MANUAL

SECIFICATIONS
SYSTEM POWER INPUT POWER CONSUMPTION AERIAL IMPEDANCE TUNER RECEICING CHANNELS PAL/SECAM,B/G,D/K, I GERMAN STEREO,NICAM AC 170-260v(50/60Hz) 100W 75OHM UNVALANCED VOLTAGE SYNTHESIZER TUNING VHF-L E2-S10 VHF-H E5-S41 UHF E21-E69 MAX.99 PROGRAM MEMORIES 28",110 5W X2 8W 8 OHM 2 AV SCART 1 FULL SCART 1

PROGRAMME PICTURE TUBE SOUND OUTPUT SPEAKER AV JACKS

CAUTION: Before servicing the chassis, read the "Safely Precaution".
"X -Ray radiation Precaution" and "Product Safety Notice" on Page 2 of this manual.

X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To Avoid such hazards the high voltage must not be specified limit. The normal value of the high voltage of this receiver is App. 28.5KV at zero beam current (minimum brightness) under 230V AC power source. The high voltage must not under any circumstances exceed 30KV. 2. Each time a receiver requires servicing the high voltage should be checked following the HIGH VOLTAGE CHECK procedure in this manual. It is recommended the reading of the high voltage be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter.

3. The primary source of X -RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY RADIATION protection, the replacement tube must be exactly the same type tube as used in this TV receiver. 4. Some parts in this receiver have special safety-related characteristics for X-RAY RADIATION protection. For continued safety, parts replacement should be undertaken only after referring the PRODUCT SAFETY NOTICE below.

SAFETY PRECAUTION
WARNING: Service should not be attempted by anyone unfamiliar with the necessary Precautions on this receiver. The following are the necessary precautions to be observed before servicing this chassis. 1. Since the power supply circuit of this receiver is directly connected to the AC power line. An isolation transformer should be used during any dynamic service to avoid possible shock hazard. 2. Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube. The picture tube is highly evacuated and if broken, glass fragments will be violently expelled. Use shatterproof goggles and keep picture tube away from the unprotected body while handling. 3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as: nonmetallic control; knobs, insulating covers, shields, isolation resistor-capacitor, network, etc. 4. When replacing parts or circuit boards, disconnect the power cord. 5. When replacing a high voltage resistor (metal oxide resistor) on circuit hoard, keep the resistor 10mm(1/2 in.) away from circuit board. 6. Connection wires must be kept away from components with high voltage or high temperature. 7. If any fuse in this TV receiver is blown, replace it with the FUSE specified in the chassis parts list. 8. The receiver is designed to operate with 230V(50Hz) AC mains.

PRODUCT SAFERY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics are often passed unnoticed by a visual inspection and the X-RAY RADIATON protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, X-RAY RADIATION or other hazards.

GENERAL ADJUSTMENT AUTOMATIC DEGAUSSING
An automatic degaussing coil is attached around the picture tube, degaussing the tube properly in about one second after the set is switched on. If the receiver is moved or faced on a different direction, the power must be switched off at least 15 minutes in order that the automatic degaussing circuit operated properly. External is necessary if the automatic degassing proves ineffective when the set is moved.

B+ ADJUSTMENT
CAUTION: To avoid X-ray hazards, B+ voltage must be set in the scale of 140V+/0.5V.

1. 2. 3. 4. 5.

Make sure the AC power supply is 230V, 50Hz. Switch on the TV receiver, tune in an active channel. Measure the voltage between C641 on Main P.C. Board DC voltmeter. Set contrast, brightness, color to maximum. Adjust VR631 on Main P. C. Board for B+140V+/-0.5V voltage reading.

HIGH VOLTAGE CHECK
CAUTION: There is no high voltage adjustment in this chassis, B+140V voltage directly relates to the high voltage. The high voltage does not exceed 30KV under any conditions. 1. Connect an accurate high voltage meter to the second cap of the picture tube. 2. Turn on the receiver, set brightness and contrast to minimum (Zero beam current). 3. Make sure the high voltage does not exceed 30KV. 4. NO matter whether the luminance, contrast and chrominance controls are set to maximum or minimum, the high voltage must be kept under 30KV.

FOCUSING
Receive a TV test pattern signal; adjust controls for optimum picture. Adjust Focus Control for a well-defined, sharpest display in the center area of the screen.

ADJUSTMENT AND SERVICING THE VHASSIS
SERVICE MODE
To enter the service mode, a special remote control which contains an additional SERVICE key must be used to setup the chassis in producing. See the illustration. Press the `SERVICE' key on remote control, TV will display service menu as following table 1. To select the parameter requiring adjustment, use the `P+/P-' keys. To adjust the selected parameter, use the `V+/V-' keys. To quit the service mode, press the `P.P.' key on remote control when in the service mode. Table 1

Parameter Red Gain DC Red Green Gain DC Green Blue Gain DC Blue Apr Threshold Logo

Value 45 063 45 063 45 063 15 6------------

Fix value Fix value Fix value Fix value Fix value Fix value Fix value Fix value

To enter the table 2, press the `OK' key for the first time on the remote control while in above service mode.

Table 2 Service V3.0

Val ue Tuner AGC 22 H position 32 VPOS 50 10 VPOS 60 10 VAMP 50 47 VAMP 60 52 Bright max 63 Bright min 00 Sub Tint 32 VCO Coarse 05 VCO Fine 063 VCO Coarse L1 05 VCO Fine L1 080

Parameter

Fix value Fix value adjusted not adjusted not adjusted not adjusted not adjusted Fix value Fix value Fix value Fix value 056-066 France France

1 5 9

2 6

3 7 -/- /

4 8

To enter the table 3, press the `OK' key for the second time on the remote control while in above service mode. Table 3 STV9306

SAW50 SAW60 SH SC CC EW VDC EW AMP EW SHAPE EW TRAP

58 61 22 05 10 05 13 00 18

To enter the table 4, press the `OK' key for the third time on the remote control while in above service mode. Table 4 Design

Parameter AGC gain Option 1 Option 2 Option 3 Option 4 Option 5 ST Ttext

Value 00 50 00 07 27 00 00

H POS OSD V POS OSD H POS TXT V POS TXT

001 01 066 04

OPTION1: B5=P/N/S Crystals application (0=2 crystals, 1=1 crystal) B4=Cutoff Loop (0= OFF, 1=ON) B3=Safety_Reset (0=Active, 1=non) B2=Super Tuner (0=OFF, 1=ON) B1=Sound Demodulation (0= Intercarrier/MONO, 1=QSS/NICAM) B0=Logo Display (0=OFF, 1=ON) OPTION2: (It's better to keep the default setting option2=0) B5=Half_Contrast (0=OFF, 1=ON) B4=Color 6db (0=OFF, 1=ON) B3=APR Feature (0=ON, 1=OFF) B2=Black Stretch (0=ON, 1=OFF) B1=Auto Flesh (0=ON, 1=OFF) B0=Coring (0=ON, 1=OFF) OPTION3: B5=AVL (0=OFF, 1=ON) B4=PIF Over modulation (0=OFF, 1=ON) B3=Market_France-SECAM L/L' (0=OFF, 1=ON) B2=Manual/Auto Cutoff (0=Manual, 1=Auto Cutoff) B1=Mute pin Low/High To control the speaker (0=Low, 1=High) B0=TDA7449/TDA7439 (0=TDA7449, 1=TDA7439) OPTION4: B4=SCART2 (0=OFF, 1=ON) B3=RGB (0=OFF, 1=ON) B2=SVHS (0=OFF, 1=ON) B1=AV2 (0=OFF, 1=ON) B0=AV1 (0=OFF, 1=ON) OPTION5 and ST Ttext is for teletext setting only. It normally could not be changed. If it's necessary to adjust the OPTION 5, please read the following information before adjustment. A. For CPUs with English, French, German, Polish or English, French, German, Turkish, Please refer to the setting as below. 1. If OPTION 5 = 00, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH, TURKISH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded. 2. If OPTION 5 = 02, then the TEXT languages like "POLISH, FRENCH, ESTONIAN, CZECH, GERMAN, SERBIAN, LETTISH, RUMANIAN " can be decoded. 3. If OPTION 5 = 04, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE, LETTISH, RUMANIAN " can be decoded. 4. If OPTION 5 = 06, then the TEXT languages ENGLISH, FRENCH, SWEDISH, TURKISH, GERMAN, PORTUGUESE, LETTISH, RUMANIAN can be decoded. B. For coming new OTP/CPU with English, Russian, Czech, Polish, the setting of the OPTION 5 will be changed as below. 1. If OPTION 5 = 00, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH, CZECH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded. 2. If OPTION 5 = 02, then the TEXT languages like "ENGLISH, RUSSIAN, SWEDISH, TURKISH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded. 3. If OPTION 5 = 04, then the TEXT languages like "POLISH, RUSSIAN, SWEDISH, CZECH, GERMAN, SERBIAN, ITALIAN, RUMANIAN " can be decoded. 4. If OPTION 5 = 06, then the TEXT languages like "POLISH, RUSSIAN, SWEDISH, CZECH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN can be decoded. Normally, it is supposed not to set OPTION 5 = 01. If you set the OPTION 5 = 01, then the font

can be switched by press key MENU on remote control in TEXT mode for TV4K. If you set OPTION 5 = 00, 02, 04, 06, then there is no any activity while press MENU in TEXT mode. Please check.

A.F.C. ADJUSTMENT
Removing any R.F. signal source and prevent any stray signal source from entering the tuner by shorting the tuner input inner contact to the out screen. Inject the 38.9 MHZ carrier into the tuner IF output pin (pin 11).Select the parameter `VCO Coarse' in the service mode (Table 2).The `VCO Status...'will appear on the screen. Then press the `AV' key on remote control, the CPU will adjust automatically until the `VCO Status OK' appears on the screen. If this can not be achieved, adjust the T201 first and then press the `AV' key on remote control, the CPU will adjust automatically once again until the `VCO Status OK' appears on the screen.

GEOMETRY
To adjust the picture position and vertical size, select the appropriate parameter in the service mode and adjust as necessary.

Remote control
35 36 DIRECTIVTY DIRECTIVTY 6m(MIN) 30FROM LIGHT AXIS 5m(MIN) 8m(NOR ) 7m(NOR ) OK OK

CTV2811N-JL TXT/NICAM SCHEMATIC DIAGRAM
+5VA SDA SCL +8V SDA R426 100 SCL LQ03 10UH CQ20 10u 1015 QQ01 CQ18 103 42 dvdd5 41 40 39 38 37 36 35 34 RQ07 100 RQ08 100 R429 LQ06 10UH CQ15 CQ17 10p RQ04 20k 33 32 31 30 gnd1 cap3 gnd2 xout sda xin reg dcl IC400 scl nu XQ01 27M CQ16 10p STV8203 22 29 28 27 26 25 24 23 cap7 reset 100n RQ03 220K CQ13 10u 100 IC401 30 SCL TDA7439

NOTE: SUBJECT TO CHANGE WITHOUT NOTICE

CRITICAL PARTS
R810A 1R/2W +26V 8OHM/8W

SCART1

VI VO

FBI RI

GI

SW LI BI

RI LO RO

VI VO

FBI RI

GI

SW LI BI

RI LO RO SCART2

21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

VIN2

R421 2.7K

R422 5.6K

R423 5.6K

R424 2.7K

D3403 4148

S-SW2

29

28

27

26

25

24 RIN4 BOL

23

22

21

20

LIN2 MINR 19

18

17

16 MXOL INL

CQ14 10n

5.6n 5.6n 18n 22n 100n 100n 100n 100n 22n 18n 2.2u MOL LIN1 MOR LIN4 MXOR RIN2 BOR TRR AGND TRL MIL INR BIR BIL

2.2u 0.01u C3409 4 IC3401 TDA7263M 3.3UF 10 1 R3420 680 C3421 2200P Q464 A1015 2 6 C3407 3.3UF R3416 100 R3430 10K R3431 47K R3415 4R7 R3417 R3412 100 C3411 100n

CRF DGND

C451

22K

3 C3406 R3411 1K C3408 2200P C3420 0.1u R3409 1K 5

9 8

R453 22K

1n C450

R3413 C3401 3K3 0.39u

C3416 470UF

VIN3 VO1 RIN2 LIN2 CT

C453 R454 22K 1n

1K

C426C421 C427C422C428 C423C424C429 C425C431

R504

C3419 100UF/35V

SP602

RIN1

C452

C432

C433

C3417 1000UF/35V C3418

D3401 4148

21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

LIN1 R455 22K

R501 R507 1K2 82K

IC501 3 12 C507 470P R511 220 11 10 R514 2K7 D502 IN4148

1n

Q501 A1015

R452

S-SW1

RIN3

RIN1

ROT

LIN3

SDA

LOT

C417 C435 10u 0.1u

C442 1u

R505

sck

nc

ws

nc

nc

nc

nc

470UF

Go Bo

1K

sd

C443 1u CQ26 RQ11 10UF 1K CQ27 RQ13

0.1u

R3414 4R7

CN101

XP501

R519 47K

VS

10

11

12

14

15

1n

R516 4.7K R502 R508 1K2 82K 4 9 C506 470P R517 220 6 R518 4.7K 7

13

1

2

3

4

5

6

7

8

9

FBI RI GI BI R434 560 C444 4.7uF R406 68 R408 560 R450 R451 22K 22K R433 560 Ro

V501 A48QA220X D501 IN4148 R513 2K7

16 slout

cap6

av5b

arout

mout

alout

gnd3

gnd4

srout

av5a

cap5

cap8

cap2

cap1

avcc

arin

min

alin

srin

CQ24 5

10n

D3402 4148

CQ10

10u CQ09 10n TU201

CQ08 220n

CQ07 10p 1n CQ06 10u

RQ02 39 10u CQ02

C437

1u

SIF

RO R433A 560

1K CVBS OUT1

RIN2

RIN1

LIN1

LIN2

AGC

VCC

BH

BU

VT

BL

C434 100UF IF 7 8 9 10 11 60MA L202 +5V C235 10UH

MUTE

+5V

+8V

+8V

8OHM/8W

+9V

RQ10 L401 1K 10UH

LO R434A 560

CQ03

R506

R484 22K

1N4148

SP601 1N4148

1K

C436

R405

CQ01 10n CQ04 1u CQ05 1u

3K3

C3415

CQ11 10n

10

11

12

13

14

15

17

18

19

20

2

3

4

6

7

8

9

21

D3404 4148

slin

C439 4.7uF

RO LO

1

sif

RQ12 1K

10UF

1K D463 1N4148 C486 D465 1N4148 470u Q3404 D462 C1815

C3413 C3402 100n 0.39u D461

Q402 C1815 C407 10UF C408 0.1u

R407 68

VO1

R503 R509 1K2 82K 1

STV5112 15 C508 470P R512 220 D503 IN4148 R515 2K7 C509 2200p/1K6V C510 0.01/500V

1u

CVBS OUT2

1 VT

2

3

4

5

6

OSD FB

OSD G

5V(A)

OSD R

OSD B

SDA

BCLP

SC

SCL

HD

8V

CT

Go

Ro

VS

Bo

C111 22u AGC BH 1N4148 BL R101 27K BU D210 1N4148 C240 10u Q204 D209 0.1u 4K7

D107 1N4148

C239

R102 47u C233 1n R255 4K7

+12V GND 180V HEAT

XS804

R520 10K XP504 C505 10UF

R517 4.7K D505 IS4148 R521 82

14 2 5

13

SAW102 K9650M 1 5

L111 10UH R148 100 R147 100 C143 4n7 C132 470u C135 1u 56 FMCAP C134 10n 55 54 GND D AUDIOOUT

R144 56K R145 8.2K R146 2.2K

L113 10UH C131 470u

C504 10u

1N4148

D211

2SA1015Y

2SA1015Y

R142

4.7U

C139 10n

R237 BSW1 R232 BSW2 +5V +8V CN001/2 C067 10UF 10K

R233 10K

10K R071 1K CN001/5 SW3 VSW4 V+

10n

53 Vcc D

52 SDA

51 SCL

50 SLPF

49 LFB/SSC

48 HOUT

47

0.1u

46

C145 45 Vcc1

44 CVBSOUT1

43 GND1

42 PIFLC1 X1/VAMP/CHROUT

R136

Q205 R234

R116 100

C105

R137 15K

68K

X102 4.43M 41 40 CLPF XTAL1

39 XTAL2

38 XTAL3/BTUN

37 FBOSD

36 ROSD

35 GOSD

R027 1K

34 BOSD

R028 1K

R026 1K

R129 27K

R025 2K7

C141

C238 10u

10K

Q206

2SA1015Y

C236 10u

C104 10n

2 3

4

R138 C142 2.2K 2.2u R139 2.2K

C138 C137 C161 4700P 0.1u 18PF C129 0.1u

R143 2.2K

C128 0.1u

C127 C126 0.1u 0.1u

R135 1K R134 47k

R133 470

R132 470

R131 470

CRT BOARD

33 Icath

32 ROUT

31 GOUT

30 BOUT

29 NC

SW5 P-

SW6 P+

BCL/SAF

5K6 R231 5K6 IC011 GND VCC CN001/4 R076 10 C041 10UF C040 0.1u 2 3 4 R079 OUT 4.7K R23 CN001/3 1

VERT

VS-1 +12V

AGCSIFCAP

AM/FMOUT

AGCPIFCAP

Y/CVBSIN3

EXTAUDIO

CVBSIN1

GND IF

PIFLC2

FBEXT

SIFIN1

SIFIN2

PIFIN1

PIFIN2

Vref IF

RESET NC

NC VT

CVBSIN2

55 54 C031 47PF 53 52 51 50 49 48 C015 39PF 47 46 45 44 43 42 41 40 39 R039 38 5K6 37 36 35 X001 4M

R072 120

R073 270

R074 470

R075 680

INTCVBSOUT

IRIN

KB INPUT

TUNERAGCOUT

56

IC003 STV2246C/48C

BCLV FLYBACK BREATH EWSENS CHR APR EWOUT CRAMP CHOLD SENS2 SENS1 R311 220K R312 R313 100K 15K NC NC NC

GND2

IFPLL

VccIF

Vcc2

BS

SYNC

R015A 1K

MUTE STDBY LED NC STDBY LED OSC OSC NC VOL PWM NC SAW-SW2 NC SAW-SW1 BSW2 BSW1 VSYNC HSYNC AVDD1 PXFM JTRETO GND AGND TELETEXT WSS JTMS AVDD2 CVBSO TXCF

R037 39K Q001 1815

R012 R001 33K 33K R003 33K C001 0.1u

1 33V

2 C122 1u SAW101

3

4 C123 10u

5

6 C109 1u

7

8 R121 150 C106 0.33u

9

10

11 C108 1n

12

13

14 R119 220 L103 8.2uH 6.5M

15

16 L101

17

18

19 C118 1u

20

21 C117 1u

22

23

24

25

26 C153

27 C152 0.1u

28 SCL C151 0.1u FBI RI GI BI VS SDA

R301 100

IC301 STV9306

VOPS

GND

OUT

VCC

SDA

SCL

RESET MUTE ON/OFF +5V R020 6K8 S-SW2 S-SW1 SDA SCL +5V E0 VCC E1 WC E2 SCL GND SDA C011 0.1u IC001 ST24C01 OSD B OSD G OSD R OSD FB +5V D004 1N4148 R029 1K R031 1K R033 1K R034 1K R014 100 R015 100 R036 6K8 R016 6K8 R060 6K8 R007 4K7

6 7 R005 4K7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 C008 0.1u C009 100uF L001 10UH C004 220P C005 220n R011 5.6K R019 6.8K 22 23 24 25 10UH C012 0.1u C003 4n7 C013 22P R018 5.6K 26 27 28

33K C002 0.1u

ON/OFF S-SW2 S-SW1 S1 S0 NC NC NC NC B G R FB SDA SCL VDD JTDO WSCF WSCR AVDD3 TEST0 MCFM JTCK

1 K2955M 2 3 5 CQ12 56p RQ05 560 CQ19 47P LQ01 10uH

0.1u

GREEN CN001/1 R015 1K

RED D001A HFT505M

5

R002 10K

R004

VT

4

C124

0.022u

C154 1u

trf1062 R124 1K R123 1K

C402 1u

C401 1u R402 75

C125 1u

0.1u R128 330K

R302 100 C327 47P

C301 C328 100n 47P R317 1K

C302 330n

C306 100u/35V R323 R331 10 D302 1N4004 C809A C314 0.027U/400V 2200u D311 C809 0.27U/400V D813 C839 1U/250V FR104 1 R843 10K L804 35UH 0.68R

R322 100

R324 R335 100 68K

C103

C312 1n

R314 R320 10K 2.2K

C107 10n

C121 47u

CF102 CF103 5.5M

R401 75

R156 R155 75 75

R154 75

R153 75 +12V 24V

Q401 C1815 C813 0.1u R329 4.7/2W C309 4.7UF/160V L803 VIN2 VIN3

C319 1 22n

C014 39PF

R336 470

VCOIL

SIF

L110 10UH CVBS OUT1

C119 R404 470 0.1u

L112 10UH C133 470u

SAW2 5V(A) AGC

32V/1w

R814 1 1K

XS803 HCOIL

8V

SC D108 1N4148 C807A 56P +8V R807 1K

C812 1000u

+12V

SAW1 BSW2 BSW1 +5V D012 1N4148 D013 1N4148 R090 22K SC R049 5.1K C035 4n7 C602 C036 22P 0.22U/250V T601 C019 470n C021 82P CVBS OUT2 D619 1015 MTZ11C R623 2K7 R611 Q611 5K6 C033 0.1u C606 D606 D604 C604 R602 3R9/5W C613 4700P C605 D605 D603 C603 VS-1 C603-606 1000P/1KV D603-606 ERC05-10B T602 C607 220u/400V R620 120K R620A 120K R622 D614 15K 1N4148 D617 R619 R625 6.8 2 5 9 N615 3 4 T611 15 C634 390P TLP621 2 1 D634 RU4YX C645 R655 2K2 C653 100UF C651 0.1u Q683 B892 IC606 1 7812 3 2 C657 0.1u C656

R801A IC602 1 C690 0.1u 1 C658 100UF/16V 0.1u C661 7805 3 1R1/2W

C801 220P/500V L802A 100UH D801 1N4937 C802 10U/250V

+180V

100UF/16V

7808 3 IC604

2 C674 0.1u

C675

HEAT

470UF/16V 2 C671 0.1u C662 +5VA +140V 220P/500V 470UF/16V C805 D805 1N4937 7 3 4 1R/0.5W FV R804 3R3 BCLV 2

R670A 22/5W

T802
HV

R685 10K 1 IC605 7805 3 C654 2 C652 0.1u 470UF/16V

R008 4.7K SDA SCL

R009 4.7K

C616 1000/2KV

C655 R650 10UF 10K R650 D650 3V9 D626 33V C659 1UF/50V 1K

Q652 2SA1015Y

+5V BCLP RESET

2200u/25V D635 RU4YX C635 1000u/35V R610 0.33/1W C637 470P

D134 1N4148

R802

C614

ES1

47

R624 2 39

Q613 8 2SC4429/5299 2

17

R653 10K

0.1u D616 1S1555 R617 1K R626 2K2 0.015u

C650 10UF/16V +26V

C146 4.7u/50V R808 R808A R809 8K2/2W 8K2/2W

6 R801 1R/2W 9 C812A 100u/160V 10 1 R315 15K R149 10K 8 R310 22K C807 0.039U/63V SV 2

16 D631 RU4AM C631 470P

RT601

MZ72-18

34 33 32 31 30 29

R640 15K/2W

+140V R638 68K R639 22K R635 150K Q631 VR631 2K C1815 R636 6K8 R689 R637 22K Q686 A1015 R688 10K Q685 C1815 Q682 R686 150K C1815 180K D641 6V2 D685 6V2 C685 1UF R687 560K ON/OFF C318 330P/500V C801B R813 0.1u Q801 100 R817 HD

0.22uF/400V

L002 +5V

10 C022 104 R021 15K C023

R043 10

C600A

C617

R041 +5V XS600 0.22u/250V C601A C034 10u 2n2

C615 0.01

R615 22K

Q612 2SC3807

D808 1N4004

3

13

33V

8K2/2W C808

9

T801

C641 100UF/160V XS601 L801 C629 2200P/400V

L801

0.1U/250V Q802 L819 D2539/2SC5296 0.2UH

4.7UH 1K5 L818 0.6UH

R341 D802 RS3FS D803 1N4937 +12V 10K

S600

F601 T3.15Al250V

XS600A AC230V 50Hz R629 8.2M/1W C801A 100P/50V

D810 IN4148 2SC2482

C810 220P/2KV

C843 5n6/1600V

C842 8n2/1600V C811 27n/400V

ST92195PLSH

C816 330P/500V