AG TV4K Schematic

TV4K-NICAM / A2 STEREO

COLOUR TELEVISION RECEIVER

SERVICE MANUAL

SECIFICATIONS

z SYSTEM PAL/SECAM,B/G,D/K, I
GERMAN STEREO,NICAM

z POWER INPUT AC 170-260v(50/60Hz)
z POWER CONSUMPTION 100W
z AERIAL IMPEDANCE 75OHM UNVALANCED
z TUNER VOLTAGE SYNTHESIZER TUNING
z RECEICING CHANNELS VHF-L E2-S10

VHF-H E5-S41
UHF E21-E69

z PROGRAMME MAX.99 PROGRAM MEMORIES
z PICTURE TUBE 28”,110°
z SOUND OUTPUT 5W X2
z SPEAKER 8W 8 OHM ×2
z AV JACKS AV SCART ×1

FULL SCART ×1

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. Make sure the AC power supply is 230V, 50Hz.

2. Switch on the TV receiver, tune in an active channel.

3. Measure the voltage between C641 on Main P.C. Board DC voltmeter.

4. Set contrast, brightness, color to maximum.

5. 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 Value
Red Gain 45 Fix value
DC Red 063
Green Gain 45
DC Green 063
Blue Gain 45
DC Blue 063
Apr Threshold 15
Logo 6------------

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

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

Table 2
Service V3.0

Parameter ValueFix value

Tuner AGC 22 Fix value
H position 32 adjusted
VPOS 50 10 not adjusted
VPOS 60 10
VAMP 50 47
VAMP 60 52

not adjusted
not adjusted
not adjusted

Bright max 63 Fix value
Bright min 00 Fix value
Sub Tint 32 Fix value
VCO Coarse 05 Fix value
VCO Fine 063 056-066
VCO Coarse L1 05 France
VCO Fine L1 080 France

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 58
SAW60 61
SH 22
SC 05
CC 10
EW VDC 05
EW AMP 13
EW SHAPE 00
EW TRAP 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 Value
AGC gain 00
Option 1 50
Option 2 00
Option 3 07
Option 4 27
Option 5 00
ST Ttext 00

1

5

9

234

678

-/--

¢ñ¢ò

/

H POS OSD 001
V POS OSD 01
H POS TXT 066
V POS TXT 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, TURKI SH,

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 DIRECTIVTY 6m(MIN) 8m(NOR

)

36 DIRECTIVTY 30°FROM LIGHT AXIS 5m(MIN) 7m(NOR

)

OK
OK

CTV2811N-JL TXT/NICAM SCHEMATIC DIAGRAM

LQ03
10UH

CQ20

10u

1015

QQ01

CQ18

103

414039383736353433

gnd2

dvdd5

IC400

cap5

cap6 reg

sif

CQ11

142

2345678910

10n

10u

CQ10

CQ09

SIF

10n

AGCVTBU

AGC

R101

BSW1

BSW2

+5V

+8V

R015A

RESET

MUTE

ON/OFF

+5V

S-SW2
S-SW1
SDA

SCL
+5V

OSD B
OSD G
OSD R
OSD FB

R008

4.7K
SDA

SCL

+5V

VT

27K

1K

C239

C111

0.1u

22u

D211

1N4148

Q206

R237
10K

R232

5K6

5K6

R231

CN001/4

R076

10

C041

C067

CN001/2

10UF

10UF

GREEN RED

R015

CN001/1

1K

R036
6K8

R020
6K8

R016
6K8

R060
6K8

C011

0.1u
VCC

IC001

E0 E1 E2 GND

ST24C01

+5V

D004

1N4148

R009

4.7K

C008

0.1u

C009
100uF

L001

10UH

+5VA

RQ07

100

CQ14

10n

cap3av5b

CQ24

BU

2SA1015Y

IC011

C040

0.1u

HFT505M

WC

SCL

C005 220n

L002

10UH

gnd3 nc

10n

1N4148
C240

10u

VCC

D001A

SDA

R034

1K

C004

220P

C003 4n7

C013 22P

R233
10K

sclmout

D210

C012

GND

0.1u

SCL

Q204

R079

R029
1K

R031
1K

R033
1K

R014

100
R015

100

CQ17
10p

min sda

TU201

OUT

R007
4K7

R018

5.6K

SDA

R011

5.6K
R019

6.8K

VCCBHBL

RQ08

nucap8

2SA1015Y

4.7K
CN001/3

100

RQ04
20k

slin xin

CQ08
220n

83154672 91011

BH

BL

C236
10u

Q205

R234
10K

R23

1

2

3

4

5

6

7

R005
4K7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

ST92195PLSH

XQ01 27M

CQ16

10p

32

31

30292827262524

dclalin

xoutsrin

gnd1

gnd4

11

121314

CQ07

10p

IF

R102

4K7

R255
4K7

D209

1N4148

C238
10u

2SA1015Y

KB INPUT

IRIN

RESET

NC

STDBY LED

MUTE

STDBY LED

NC

ON/OFF

S-SW2

S-SW1

VOL PWM

S1

S0

SAW-SW2

NC

NC

SAW-SW1

NC

NC

B

VSYNC

G

HSYNCR

FB

SDA

JTRETO

SCL

VDD

JTDO

TELETEXT

WSCF

WSCR

AVDD3

AVDD2

TEST0

CVBSO

MCFM

JTCK

STV8203

nc

nc

arin

cap2

15

CQ06
10u

C233
1n

56

55

NC

54

VT

C031
47PF
53

52

51

OSC

50

OSC

49

NC

48

47

NC

46

45

NC

44

43

BSW2

42

BSW1

41

40

39

AVDD1

38

PXFM

37

36

GND

35

AGND

34

33

WSS

32

JTMS

31

30

29

TXCF

nc

cap1

R071
1K

nc

slout

16

CN001/5

R039

5K6

C019

470n

C021 82P

R021
15K

CQ15

100n

sck

srout

17

CQ031nCQ02

47u

R116
100

SW3

V-

R037
39K

X001

4M

C015
39PF

C035

4n7

C036
22P

R041
10

C022

104

C023

2n2

18

C235

RQ03
220K

ws

av5a

C104
10n

+8V

LQ06
10UH

19

RQ02

39

60MA

L202

10UH

SW4

V+

R072
120

D012

1N4148

Q001
1815

R002
10K

C014

CQ13
10u

22

2320

reset

sd

cap7

avcc

alout

arout

21

CQ01

10n

10u

+5V

C105

10n

SW6

SW5

P+

P-

R074

R073

470

270

R001
33K

R003

C001

0.1u

39PF

C033

0.1u

33K

R043
10

C034
10u

CQ04

1u

CQ05

1u

R012

33K

D013

1N4148

R429

100

IC401

R075
680

C434
100UF

SCL

SDA

R426 100

29

30

DGND

TDA7439

CRF

SDA SCL

12345

C435

10u

33V

R004

VT
33K
C002

0.1u

SAW2

SAW1

BSW2
BSW1

+5V

R090

VS-1

22K

SC

R049

5.1K

CVBS OUT2

+5V

NOTE: SUBJECT TO CHANGE WITHOUT NOTICE

R422

R423

R424

5.6K

2.7K
C432

C431

C429

C425

C424
100n

22

BOR

RIN2

1u

1u

R433A560

RIN1

FMCAP

SIFIN1

12345678910111213141516171819202122232425262728

SAW101

1

2

RT601

C600A

S600

2.2u

18n

100n

22n

18

19

20

21

INR

BIR

MOR

MINR

RIN1

LIN1

LIN2

LIN3

1011121314

CQ26

10UF
CQ27

10UF

1u

C437

R434A560

LIN2

LIN1

LO

RO

5V(A)

L111

10UH

C132

470u

C134
10n

GND D

AUDIOOUT

AGCSIFCAP

SIFIN2

C122

C123

1u

10u

C124

4

K2955M

5

3

CQ12
56p

RQ05

560

T602

220u/400V

R602
3R9/5W

R611

Q611

5K6

1015

MTZ11C
R623
2K7

MZ72-18

C615

0.01

0.22uF/400V

F601

T3.15Al250V

17

C443
1u

Vcc D

Vref IF

C607

C613
4700P

D619

XS600A

MXOR

LIN4

15 16

RQ11
1K

RQ13
1K

SDA

IC003
STV2246C/48C

0.022u

CQ19
47P

LQ01
10uH

28

C426

5.6n

TRR

VS

L401
10UH

2

C421

27

C417

0.1u

SIF

0.22U/250V

5.6n
26

TRL

AGND

RQ10
1K

SAW102

K9650M

C605

C606

R421

2.7K

C427

C422

18n

25

MILROT

LOT

6

RQ12 1K

+8V

3

C603-606
1000P/1KV

D605

D606

T601

XS600

C601A

22n

24

MOL

789

C436

51

4

C602

C428
100n

BOL

RIN4

D603

D604

5.6K
C423

100n

23

BIL

RIN3

C442

RIN2

C135
1u

D603-606
ERC05-10B

C603

C604

0.22u/250V

C433

2.2u

INL

MXOL

SCL

R148
100

SDA

AGCPIFCAP

C109

1u

D614
1N4148

D617

ES1

D616
1S1555

R617
1K

R615
22K

+5V

R147
100

C143
4n7

SCL

PIFIN1

47

0.1u

R619

C614

R484

22K

+8V

SC

C142

R137

15K

SLPF

PIFIN2

R620
120K

R620A
120K

R622
15K

R624

2
39

R626

2K2

Q612
2SC3807

XS601

AC230V

50Hz

C3406

0.1u

C3420

0.1u

D463

R145

D107 1N4148

8.2K

R138

2.2K

2.2u

LFB/SSC

TUNERAGCOUT

R121

C106

0.33u

1000/2KV

1N4148

D465
1N4148

R139

2.2K

150

AGC

C616

R3411

1K

R3409 1K

HD

R146

2.2K

HOUT

IFPLL

C107
10n

2

R625

6.8

0.015u

C617

L801

100UF/35V

C3421
2200P

Q464
A1015

C486

470u

VS

R144
56K

C141

0.1u

VERT

GND IF

C108
1n

Q613

2SC4429/5299

C3419

C3408
2200P

R3420

680

BCLP

R143

2.2K

C145

BCL/SAF

AM/FMOUT

C121

47u

L110

10UH

5V(A)

5

CRITICAL PARTS

C3417

1000UF/35V

893

C3409

5

4

IC3401

TDA7263M

3.3UF

10

1

2

6

C3407

3.3UF
R3416

Q3404

0.1u

CVBS OUT2

10n

C1815

10K

R142

C139

CVBSOUT1

INTCVBSOUT

R119
220

L103

8.2uH

6.5M

CF102
CF103

5.5M

2
1

15

9

17

16

13

9

R3430
10K

R3431

47K

R129
68K

GND1

EXTAUDIO

C634

R610

0.33/1W

N615
3

4

2

3

C154
1u

8

D462

1N4148

T611

8V

L113
10UH

C131
470u

4.7U

Vcc1

VccIF

C103

TLP621

C629

2200P/400V

R629

8.2M/1W

C3418

0.01u

R3412
100

C3411

100n

R3415
4R7

C3413

100

D461

1N4148

C138

C137

4700P

0.1u

X102

R136

4.43M

CLPF

X1/VAMP/CHROUT

PIFLC2

PIFLC1

L101

trf1062

Q401

C1815

CVBS OUT1

D634

RU4YX

390P

2200u/25V

D631

RU4AM

C631
470P

C641

100UF/160V

R810A
1R/2W

R3413
3K3

100n

27K

RU4YX

C645

D635

C161
18PF

R404
470

C637

470P

D3401

R3414

0.39u

MUTE

XTAL1

Vcc2

R124

4148

C3401

0.39u

4R7

3K3

C3402

8OHM/8W

1K

0.1u

R685
10K

C635

1000u/35V

R3417

C119

R638
68K

R639
22K

D3403

4148

D3404

SP601

XTAL2

CVBSIN1

C118
1u

R123
1K

Q683
B892

+26V

SP602

C3416
470UF

4148

D3402
4148

OSD FB

C129

0.1u

R025 2K7

XTAL3/BTUN

GND2

C402

1u

L112
10UH

C133

470u

C653
100UF

R655
2K2

IC605

7805

3

R640
15K/2W

R635
150K

VR631

2K

C1815
R636
6K8

SCART1

8OHM/8W

470UF

C3415

C128

0.1u

FBOSD

CVBSIN2

C117
1u

C652

21

0.1u

Q631

D641
6V2

R637

180K

VIN2

R453

OSD R

R026 1K

R402
75

8V

C651

0.1u

VI

VO

2120191817161514131211

LIN1
RIN1

C451

22K

1n

FBI

RI
GI

BI

C407
10UF

OSD G

OSD B

C127

C126

0.1u

0.1u

R028 1K

R027 1K

BOSD

GOSD

ROSD

Y/CVBSIN3NCAPR

BS

CHR

C401
1u

R401

75

VIN2

IC606
7812

3

R670A

22/5W

C654

470UF/16V

D626

33V

R688

R689

10K

22K

Q686

D685

A1015

6V2

R452

C450
1n

C408

0.1u

R134

47k

C125 1u

21
C657

0.1u

FBI

22K

Q402 C1815

+9V

CT

R135
1K

Icath

VIN3

C659

Q685
C1815

R405

C656

C685
1UF

Ro

ROUT

NC

C153

R128
330K

100UF/16V

SW

GIRI

987654321

10

R434
560

C444

4.7uF

R406
68

R408
560

1K

CVBS OUT1

Go

R132

R133

470

470

GOUT

C152

0.1u

0.1u

R156

R155
75

75

+12V

C661

100UF/16V

D650
3V9

1UF/50V

R686
150K

R687
560K

LI

RI

VI

ROLO

BI

2120191817161514131211

S-SW2

S-SW1

R450

R451

R433

22K

22K

560

Bo

R650
10K

RO

C439

4.7uF

LO

R407

VO1

68

R131
470

29303132333435363738394041424344454647484950515253545556

BOUT

NC

FBEXT

NC

C151

FBI

0.1u
RI

GI

BI

R154

R153

75

75

IC602

C674

21

7808

0.1u

3

IC604

C671

21

7805

3

0.1u

Q652

C655

2SA1015Y

R653
10K

C318

Q801

0.1u

R813
100

D810

IN4148

2SC2482

R650

1K

Q682

C1815

C690

0.1u

C658

0.1u

10UF

C801A
100P/50V

C453
1n

CN101

R301 100

R302 100

+8V

+5VA

33V

HD

GIRI

987654321

10

R454
22K

XP504

C813

0.1u

+140V

BCLP

R808A
R809

T801

1K5

XP501

C327
47P

D808

SW

BI

22K

IC301
STV9306

D108
1N4148

C807A

56P

4.7u/50V

1N4004

LI

R455

C452

1n

C328
47P

R317
1K

C309

L803

D134
1N4148

C146

R808
8K2/2W
8K2/2W
8K2/2W

C808

0.1U/250V

D2539/2SC5296

L801

4.7UH

RI

ROLO

SCL

C301

100n

R329

4.7/2W

4.7UF/160V

R807
1K

220P/500V

Q802

L818

0.6UH

SCART2

CRAMP

SDA

C302

330n

C812
1000u

C805

R802

1R/0.5W

R801
1R/2W

C812A

100u/160V

L819

0.2UH

C810

220P/2KV

32V/1w

D805

R520
10K

C505
10UF

CHOLD

R331
10

1N4937

D311

Q501
A1015

R519
47K

SYNC

C839

C843

5n6/1600V

D505
IS4148

VCC

FLYBACK

C306

100u/35V

D302

1N4004

C809

0.27U/400V

1U/250V

R507

R501
1K2

R516

4.7K
R502

R508

1K2

R518

4.7K
R509

R503

1K2

R517

4.7K

GND

C809A

0.027U/400V

D813

FR104

1
R843
10K

R801A

1R1/2W

R804

2

3R3

7

3

4

6

2

10

1

C842

8n2/1600V

C811

27n/400V

IC501

82K

1K

R504

82K

1K

R505

82K

1K

R506

R521

C504

82

10u

CRT BOARD

OUT

VOPS

EWOUT

R323

0.68R

C314

2200u

L804

35UH

C801 220P/500V

D801
1N4937

T802

R315

15K
R149
10K

3

11

4

6

STV5112

1

14 13

SENS2

EWSENS

R322

100

C319

22n

R814

1

1K

L802A
100UH

C802
10U/250V

D802
RS3FS

D803
1N4937

52

12

10

15

SENS1

1

C507
470P

R511
220

9

C506
470P

R517
220

7

C508
470P

R512
220

C510

0.01/500V

R324

R335

68K

100

R336
470

XS803

9

0.039U/63V

8

BREATH

C807

R341
10K

HV

R310
22K

C312

1n

+180V

HEAT

FV

SV

R311
220K

D502

IN4148

R514
2K7

D501
IN4148

R513

2K7

D503
IN4148

R515
2K7

2200p/1K6V

R312
100K

C509

VCOIL

HCOIL

+12V

V501
A48QA220X

R313

15K

R314
10K

BCLV

+12V

BCLV

R320

2.2K

FBI

VO

VIN3
VO1

RIN2
LIN2

CT
Ro

Go
Bo

XS804

+12V

GND

180V

HEAT

VS-1

SCL
SDA

VS

+12V

24V

SC

C675

470UF/16V

C662

470UF/16V

+5V

RESET

C650

10UF/16V

+26V

+140V

ON/OFF

R817

C801B

330P/500V

C816
330P/500V