Haier BH2004D Ver.2 Schematic

BH2004D

COLOUR TELEVISION

Service Manual

MODEL :
BH2004D
(America)

■ Features

 51cm super flat picture tube
 Auto search 181 program presetting and memory
 CCD & V-CHIP

NO:M-MR-AE-BH2004D-8377

Haier Group

Edition:2004/4/17

.

This manual is the latest at the time of print, and does not include the modification
which may be made after the printing, by the constant improvement of product.

CONTENTS

1. Safety precautions……………………………………………………………..……………3

2. TV block diagram……………………………………………………………………..…….4

3. Replacement of memory IC………………………………………………………….……5

4. Service adjustment……………………………………………………………..…………...5

5. ICs functional description…………………………………………………………………8

6. Test point waveform………………………………………………………………………10

7. All ICs voltages……………………………..……………………………………………….10

8. Purity / convergence adjustment………………………………………………………11

9. List of Parts ………………………………………………………………………….…….14

10.

Exploded View………………………………………………………….. 15

11. Circuit diagram………………………………………………………………………Attached

2

.

1. SAFETY PRECAUTIONS

1. The design of this product contains special hardware, many
circuits and components especially for safety purposes. For
continued protection, no changes should be made to the
original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to those
used in the original circuits. Service should be performed by
qualified personnel only.

2. Alterations of the design or circuitry of the products should
not be made. Any design alterations or additions will void the
manufacturer’s warranty and will further relieve the
manufacturer of responsibility for personal injury or property
damage resulting therefrom.

3. Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteristics
are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by using
replacement components rated for higher voltage, wattage,
etc. Replacement parts which have these special safety
characteristics are identified in the parts list of Service
manual. Electrical components having such features are

identified by shading on the schematics and by ( ！ ) on

the parts list in Service manual. The use of a substitute
replacement which does not have the same safety
characteristics as the recommended replacement part
shown in the parts list of Service manual may cause shock,
fire, or other hazards

4. Don’t short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side
ground when repairing. Some model’s power circuit is

partly different in the GND. The difference of the GND is
shown by the LIVE: ( ) side GND, ISOLATED
(NEUTRAL): ( ) side GND and EARTH: ( ) side GND.
Don’t short between the LIVE side GND and ISOLATED
(NEUTRAL) side GND or EARTH side GND and never
measure with a measuring apparatus (oscilloscope etc.) the
LIVE side GND and ISOLATED (NEUTRAL) side GND or
EARTH side GND at the same time. If above note will not be
kept, a fuse or any parts will be broken.

5. If any repair has been made to the chassis, it is
recommended that the B1 setting should be checked or
adjusted (See ADJUSTMENT OF B1 POWER SUPPLY).

6. The high voltage applied to the picture tube must conform to
that specified in Service manual. Excessive high voltage can
cause an increase in X-Ray emission, arcing and possible
component damage, therefore operation under excessive
high voltage conditions should be kept to a minimum, or
should be prevented. If severe arcing occurs, remove the AC
power immediately and determine the cause by visual
inspection (incorrect installation, cracked or melted high
voltage harness, poor soldering, etc.). To maintain the proper
minimum level of soft X-Ray emission, components in the
high voltage circuitry including the picture tube must be the
exact replacements or alternatives approved by the
manufacturer of the complete product.

7. Do not check high voltage by drawing an arc. Use a high
voltage meter or a high voltage probe with a VTVM.
Discharge the picture tube before attempting meter
connection, by connecting a clip lead to the ground frame
and connecting the other end of the lead through a 10kΩ 2W
resistor to the anode button.

8. When service is required, observe the original lead dress.
Extra precaution should be given to assure correct lead
dress in the high voltage circuit area. Where a short circuit
has occurred, those components that indicate evidence of
overheating should be replaced. Always use the
manufacturer’s replacement components.

9. Isolation Check
(Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation
check on the exposed metal parts of the cabinet (antenna
terminals, video/audio input and output terminals, Control
knobs, metal cabinet, screw heads, earphone jack, control
shafts, etc.) to be sure the product is safe to operate without
danger of electrical shock.

10. The surface of the TV screen is coated with a thin film which
can easily be damaged. Be very careful with it when handle

the TV. Should the TV screen become soiled, wipe it with a

soft dry cloth. Never rub it forcefully. Never use any cleaner
or detergent on it.

(1) Dielectric Strength Test

The isolation between the AC primary circuit and all metal
parts exposed to the user, particularly any exposed metal
part having a return path to the chassis should withstand a
voltage of 3000V AC (r.m.s.) for a period of one second.
(…Withstand a voltage of 1100V AC (r.m.s.) to an appliance
rated up to 120V, and 3000V AC (r.m.s.) to an appliance
rated 200V or more, for a period of one second.)
This method of test requires test equipment not generally
found in the service trade.

(2) Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use
line isolation transformers during this check). Using a
“Leakage Current Tester”, measure the leakage current from
each exposed metal part of the cabinet, particularly any
exposed metal part having a return path to the chassis, to a
known good earth ground (water pipe, etc.). Any leakage
current must not exceed 0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.2mA AC
(r.m.s.).

●Alternate Check Method
Plug the AC line cord directly into the AC outlet ( do not use
a line isolation transformer during this check.). Use an AC
voltmeter having 1000 ohms per volt or more sensitivity in
the following manner. Connect a 1500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an
exposed metal part and a known good earth ground (water
pipe, etc.). Measure the AC voltage across the resistor with
the AC voltmeter. Move the resistor connection to each
exposed metal part, particularly any exposed metal part
having a return path to the chassis, and measure the AC
voltage across the resistor. Now, reverse the plug in the AC
outlet and repeat each measurement. Any voltage measured
must not exceed 0.75V AC (r.m.s.). This corresponds to

0.5mA AC (r.m.s.).
However, in tropical area, this must not exceed 0.3V AC
(r.m.s.).
This corresponds to 0.2mA AC (r.m.s.)

3

.

2. Block diagram TDA8377 PS/N2 series with mono intercarrier sound demodulator

4

3. REPLACEMENT OF MEMORY IC

1. MEMORY IC.

This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection

circuits.

2. PROCEDURE FOR REPLACING MEMORY IC

(1) Standby off

Switch the power off and unplug the power cord from AC outlet.

(2) Replace IC

Be sure to use memory IC written with the initial data values.

(3) Standby On

Plug the power cord into the AC outlet and switch the power on.

(4) Check and set SYSTEM default value:

1) Press “MUTE”  “CALL”  “-\--“  “CALL”  “MUTE” buttons in sequence to enter into factory
status.

2) If the memory IC haven’t been written with the initial data, press [Program+] / [Program-] to select item
INIT and press [VOLUME+] / [VOLUME-] to start initialize memory IC.

3) Check the setting value of the SYSTEM default value of Table below. If the value is different, select
items by [Program+] / [Program-] keys and set value by [VOLUME+] / [VOLUME-] keys.

4) Press “EXIT” button to return to the normal screen.

4. SERVICE ADJUSTMENT

Specific operation: use remote controller
Press “MUTE”  “CALL”  “-\--“  “CALL”  “MUTE” buttons in sequence to enter into factory mode.

Press [Program+] / [Program-] to select items and press [VOLUME+] / [VOLUME-] key, to make data adjustment

of corresponding factory menus.
Press “EXIT” key to exit factory mode.

Focus adjustment

1. Receive a crosshatch signal.

2. While watching the screen, adjust the FOCUS VR on the FBT to make the vertical and horizontal lines as
fine and sharp as possible.

Geometrical adjustment

Receive NTSC standard complete pattern signal.

Adjustment steps：
a) Adjust VSL, to the centre horizontal line just appears from half bottom shadow.
b) Adjust VAM, to get 92% of vertical picture contents would be displayed on CRT.
c) Adjust VSH, the centre horizontal line corresponds to CRT vertical centre.
d) Adjust SCL, to the linearity of P card field is in proper condition.
e) Adjust

Receive NTSC signal and repeat above adjustment.

AGC Adjustment

Receive 60dBµ (1mV) VH colour bar pattern signal.
Select TOP item.

Adjust value, to noise reduce gradually and just disappeared point.

CRT cut off and white balance adjustment

a) CRT cut off adjustment

b) White balance adjustment

HSH, to get the picture horizontal centre correspond to CRT horizontal centre.

1. Select item VG2B, then adjust value to 42.

2. PRESS “0” key, when the screen shows”VG2” adjust the SCREEN control on Fly back transformer to

make the screen show alternating flashing characters of “INSIDE HIGH INSIDE LOW”.

1. Receive a Black and White pattern.

2. Adjust WRP, WRG, WRB items to get colour temperature 9300K ±3 JND.

5

Adjustable Items

Direct access key Items Description Preset Remark
“1” 5/6HSH Horizontal shift ON A

“2” 5/6VSL Vertical slop 21 A
5/6VAM Vertical amplitude 45 A
5/6SCL S-correction 20 A
5/6VSH Vertical shift 38 A
5/6VOF OSD Vertical offset 38 A
HOF* OSD Horizontal offset 20 A

“3” RED Black level offset R 32 A
GRN Black level offset G 32 A
WPR White point R 30 A
WPG White point G 26 A
WPB White point B 38 A
YDAV Y-Delay for PAL 7

“4” TOP AGC Take-over point 32 A
VOL Volume 36
9874 Output level of TDA9874A 18
AVLT TDA9874A AVL delay time

0=OFF, 1=2s, 2=4s, 3=8s
9860 Sub-volume of TDA9860/59 59
IFFS IF 2 = 38.9MHz, 3 = 38MHz 2
HDOL Cathode drive level 5
AGC IF AGC speed 1
VG2B VG2 Brightness 42

“5” Picture preset 1
0CON Listen: Contrast 0 A

0BRI Listen: Brightness 0 A
0COL Listen: Colour 50 A
0SHP Listen: Sharpness 50 A
1CON Soft: Contrast 45 A
1BRI Soft: Brightness 45 A
1COL Soft: Colour 50 A
1SHP Soft: Sharpness 50 A

“6” Picture preset 2
2CON Standard: Contrast 75 A
2BRI Standard: Brightness 50 A
2COL Standard: Colour 50 A
2SHP Standard: Sharpness 60 A
3CON Dynamic: Contrast 85 A
3BRI Dynamic: Brightness 60 A
3COL Dynamic: Colour 60 A
3SHP Dynamic: Sharpness 80 A

NOTE: THE ITEMS WITH REMARK “A” IS ADJUSTABLE DATA.

1

6

Optional data

1. OP1

Bit Function Description Preset Remark
Bit 7

Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0

RESERVE 1 = Enable
AV 2 1 = Enable
Halftone 1 = Enable
RGB 1 = Enable
DVD 1 = Enable
Comb filter 1 = Enable
SVHS 1 = Enable
AV 1 1 = Enable

0
1
1
0
1
0
0
1

2. OP2

Bit Function Description Preset Remark
Bit 7 Ident sensitive PAL 1=21dBµV 0=26dBµV 0 EA
Bit 6 TILT 1=Enable 0 EA

Bit 5 OSO Translucence OSD manual 1 EA
Bit 4 FSL 1=Enable 0 EA
Bit 3

Bit 2 FMWS 1=Enable 1 EA
Bit 1

Bit 0 AVL 1=Enable 1 EA

RESERVE

RESERVE

1=QD 0=HF 0 EA

1=Enable 0 EA

EA
EA
EA
EA
EA
EA
EA
EA

3. OP3

Bit Function Description Preset Remark
Bit 7 TDA8377 1=TDA9377 0=TDA9378 1 EA

Bit 6 16:9 1=Enable 0 EA
Bit 5

Bit 4
Bit 3 YPbPr 1=YPbPr 0=Yuv 1 EA

Bit 2 Blue/Black back 1=Blue Back 0=Black Back 1 EA
Bit 1

Bit 0

RESERVE
RESERVE

RESERVE
Woofer

0 EA
0 EA

0 EA
1=Enable 0 EA

4. OP4

Bit Function Description Preset Remark
Bit 7
Bit 6
Bit 5
Bit 4 Soft program change 1=Enable 0 EA

Bit 3
Bit 2
Bit 1
Bit 0

RESERVE 1 = Enable
VCHIP 1 = Enable
RESERVE

RESERVE
RESERVE
RESERVE
RESERVE

1=Enable 0 EA

1=YPbPr 0=Yuv 0 EA
1=Blue Back 0=Black Back 0 EA
1=Enable 0 EA
1=Enable 0 EA

0 EA
1 EA

5. OP5

Bit Function Description Preset Remark
Bit 7 Auto character
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0

FREQ display 1 = Enable
AV
PAL
Portuguese
Spanish
French
English

1 = Enable

1=Enable 0 EA
1=Enable 0 EA
1= Enable 0 EA
1=Enable 1 EA
1=Enable 1 EA
1=Enable 1 EA

7

0 EA
1 EA

6. OP6

Bit Function Description Preset Remark
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0 Menu manner

RESERVE
RESERVE 1 = Enable
SOFT CHANGE AV 1 = Enable
LISTEN 1 = Enable
INNER DVD 1 = Enable
ZOOM 1 = Enable
9860 1 = Enable

0 EA

1 EA
1 EA
1 EA
1 EA
0 EA
0 EA

1

= caption in top 0 = caption in bottom

1 EA

Note：Don’t adjust any OPTION items, please inform the engineer about any change.

5. ICs functional description

1. N501 UOC TDA8377

SYMBOL PIN DESCRIPTION

STAND BY output. 1 In STAND BY mode, low level (Power OFF).

For Power ON this pin will be high.
SCL 2 I2C-bus clock line
SDA 3 I2C-bus data line
TUNING 4 tuning Voltage (Vt) PWM output
KEY 5 Control keys input
SYSTEM 6 TV system control
VOL 7 Sound Volume control PWM output
MUTE 8 Sound mute output
VSSC/P 9 Digit ground for µ-controller core and periphery
CTL 10 DVD power control
VACANT 11 Vacant
VSSA 12 Analog ground of digital ground of TV-processor
SECPLL 13 Internally connected
VP2 14 2nd supply voltage TV-processor(+8V)
DECDIG 15 decoupling digital supply of TV-processor
PH2LF 16 Phase-2 filter
PH1LF 17 Phase-1 filter
GND3 18 Ground 3 for TV-processor
DECBG 19 Band gap decoupling
AVL/EWD 20 Automatic volume levelling
VDRB 21 Vertical drive B output
VDRA 22 Vertical drive A output
IFIN1 23 IF input 1
IFIN2 24 IF input 2
IREF 25 Reference current input
VSC 26 Vertical sawtooth capacitor
TUNER AGC 27 Tuner AGC output
AUDEEM/SIFIN1 *1 28 Audio deemphasize or SIF input
DECSDEM/SIFIN2 29 Decoupling sound demodulator
GND2 30 Ground 2 for TV processor
SNDPLL/SIFAGC *1 31 Narrow band PLL filter
AVL 32 Automatic Volume Levelling
HOUT 33 Horizontal output
FBISO 34 Flyback input/sandcastle output
AUDEXT 35 External audio output
EHTO 36 EHT/over voltage protection input
PLL IF 37 IF-PLL loop filter
IFVO/SVO 38 IF video output / selected CVBS output
VP1 39 supply voltage TV processor
CVBS INT 40 internal CVBS input
GND1 41 ground for TV processor
CVBS/Y 42 CVBS/SVHS(Y) input

8

CHROMA 43 SVHS (C) input
AUDOUT 44 Audio output
INSSW2 45 YUV insertion input
R2/VIN 46 R input / V (R-Y) input / PR input
G2/YIN 47 G input / Y input
B2/UIN 48 B input / U (B-Y) input / PB input
BCLIN 49 Beam current limiter input
BLKIN 50 Black current input
RO 51 Red output
GO 52 Green output
BO 53 Blue output
VDDA 54 Analog supply of Closed Caption decoder and digital supply of TV-processor (3.3 V)
VPE 55 Ground
VDDC 56 Digital supply to core (3.3 V)
OSCGND 57 Oscillator ground supply
XTALIN 58 Crystal oscillator input
XTALOUT 59 Crystal oscillator output
RESET 60 Ground
VDDP 61 Digital supply to periphery (+3.3 V)
P1.0/INT1 62 AV1 / AV2 mode Output.
P1.1/T0 63 AV /S-VHS mode Output.
P1.2/INT0 64 Remote control signal input.

Note

Pin TV SVHS AV1 AV2

62 1 0 0 1
63 1 1 0 0

2. N902 24C08/PCF8598

PIN Function

1 GND
2 GND
3 Upper resistance
4 GND
5 SDA data wire
6 SCL clock wire
7 GND
8 +5V Power

3. N601: Sound power amplify (AN7523N)

Symbol PIN Function Symbol PIN Function

Vcc 1 Power supply GND 7 ground
Out 1 (+) 2 Ch 1 output (+) In 2 8 Ch 2 input
GND(out 1) 3 Ch 1Ground VOL 9 Volume Control
Out 1 (-) 4 Ch 1 output (-) Out 2 (-) 10 Ch 2 output (-)
Standby 5 Mute input GND(out 2) 11 Ch 2 Ground
In 1 6 Ch 1 input Out 2 (+) 12 Ch 2 output (+)

4. N301: Vertical output (TDA8357A)

Symbol PIN Function Symbol PIN Function

INV IN 1 Input PUMP UP 6 Pump up power
INV IN 2 Input V OUT 7 Vertical output
Vcc 3 Pump up power V PRO 8 Vertical protection
V OUT 4 Vertical output V FEEDBACK 9 Vertical feedback
GND 5 Ground

5. U101：Tuner

PIN Function PIN Function

1 AGC 7 +5V
2 vacant 8 vacant
3 Gnd 9 Vt 33V
4 SCL 10 Gnd
5 SDA 11 IF Out
6 +5V

9

6. Test point Waveforms

H

TDA9370 PIN38

95Vpp

H

CRT KR

1Vpp

V

TDA9370 PIN21

2.6Vpp

CRT KG

TDA9370 PIN22

1.2Vpp

H

TDA9370 PIN40

95Vpp

H H

0.8Vpp

V

CRT KB

TDA9370 PIN59

3.8Vpp

H

TDA9370 PIN53

95Vpp

1.3Vpp

2.5Vpp

TDA9370 PIN52

0.9Vpp

H

TDA9370 PIN33

2.5Vpp

H H

TDA9370 PIN51

TDA9370 PIN34

5Vpp

H

7. IC voltages

TDA9377

PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

V 0 3.8 3.6 3.3 3.5 4.4 5.1 1.8 0 0.18 0.17 0 2.3 8 5 3

PIN 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

V 4 0 4 0.5 0.7 0.8 1.9 1.9 3.9 3.8 1.6 3.2 2.3 0 2.3 0.2

PIN 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

V 0.5 0.3 0 1.7 2.4 3.4 8 3.9 0 3.3 0 3.6 1.4 2.5 2.5 2.5

PIN 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

V 1.9 5.0 2.4 2.4 2.4 3.1 0 3.2 0 1.8 1.7 0 3.2 5.1 3.3 5

TDA8357

PIN 1 2 3 4 5 6 7 8 9

V 0.8 0.7 16 6.9 0 43 7.2 0.3 7.2

AN 7522N

PIN 1 2 3 4 5 6 7 8 9 10 11 12

V 10 4.4 0 4.4 2.75 1.4 0 1.4 0.35 4.4 0 4.4

24C08/PCF8598

PIN 1 2 3 4 5 6 7 8

V 0 0 5.1 0 3.2 0 0 5.1

10

6

d

p

8. PURITY / CONVERGENCE ADJUSTMENT

PURITY ADJUSTMENT

1. Demagnetize CRT with the demagnetizer.

2. Loosen the retainer screw of the deflection yoke.

3. Remove the wedges.

4. Input a green raster signal from the signal generator,
and turn the screen to green raster.

5. Move the deflection yoke backward.

6. Bring the long lug of the purity magnets on the short
lug and position them horizontally. (Fig2)

7. Adjust the gap between two lugs so that the GREEN
RASTER will come into the centre of the screen.
(Fig. 3)

8. Move the deflection yoke forward, and fix the position
of the deflection yoke so that the whole screen will
become green.

9. Insert the wedge to the top side of the deflection yoke
so that it will not move.

10. Input a crosshatch signal.

11. Verify that the screen is horizontal.

12.

Input red and blue raster signals, and make sure that
purity is properly adjusted.

CRT

Long lug

Short lug

WEDGE
DEFLECTION YOKE

P

4

P/C MAGNETS

P: PURITY MAGNET
4: 4-POLES
6: 6-POLES (convergence magnets)

(convergence magnets)

Fig. 1

PURITY MAGNETS

Bring the long lug over the short lug an

osition them horizontally.

Fig. 2

(FRONT VIEW)

GREEN RASTER

CENTER

Fig. 3

11

STATIC CONVERGENCE ADJUSTMENT

1. Input a crosshatch signal.

2. Using 4-pole convergence magnets overlap the red
and blue lines in the center of the screen (Fig. 1) and
turn them to magenta (red/blue).

3. Using 6-pole convergence magnets overlap the
magenta (red/blue) and green lines in the center of the
screen and turn them to white.

4. Repeat 2 and 3 above, and make the best
convergence.

DYNAMIC CONVERGENCE ADJUSTMENT

1. Move the deflection yoke up and down and overlap
lines in the periphery. (Fig. 2)

2. Move the deflection yoke left to right and overlap the
lines in the periphery. (Fig. 3)

3. Repeat 1 and 2 above, and make the best
convergence.

After adjustment, fix the wedge at the original position.
Fasten the retainer screw of the deflection yoke.

Fix the 6 magnets with glue.

(FRONT VIEW)

Fig. 1

(FRONT VIEW)

RED GREEN BLUE

BLUE

GREEN GREEN

RED BLUE

BLUE GREEN RED

Fig.2

RED

(FRONT VIEW)

RED GREEN BLUE BLUE GREEN RED

RED

GREEN

BLUE

BLUE

GREEN

RED

Fig. 3

12

P+

P-

TV/AV

C101

63V-0.1μF

R103
1/6W-22

C

R801
127K

R802

C801

RB04

1.2K

w236
1/6W-100

25V-220μF

12

cn702

Y

250V/3.15A
F801

C802A

MKT61-275V-104

180K

C102

63V-0.01μF

R106

1/6W-470

L101

LGA0203-1μH

1/6W-10K

C851

63V-104

MENU

RB02

RB03

620

1K

B+SCL SDA

NC

w235

1/6W-100

C202

DZ102

104

MTZJ5.1B

R104

1/6W-10

DZ101

MTZJ9.1B

C108

16V-47μF

C111

C109

R832

DZ831

2

1/6W-10K

1N4148

R831

V807

KSC815

C849
63V-224

N801

KACQ0765RTH-YDTU

4

VFB

VCC

SYNC

3 5

63V-3900PF

C804

VD804
TB1206

C802

25v-22u

C803
63V-0.047μF

TJC3-2Y

1

CNB02

RB01

CNB01

470

TJC3-2Y

2

GNDBT11IF

9

10831 54 6 72

SDA
SCL

A1-33V

DZ201
KA33V

C110

C201

63V-1000pF

10u

R105

R102

1/6W-13K

1/6W-2.2KΩ

B4-12V

C422
63V-104

SYSTEM

SF101

V101
BF370

A5V

R830

2

1/6W-3.3K

R833

1/6W-10K

2

B3-15.8V

DVD-5V

LD901
HTRYG9208

R806
1/2W-3.3M

1

L803
LB3.5*6

1

C805

2

1kV-1000pF

R805

VD809

1/2W-600

IN4148
R803
1/2W-390

VD810
TERB4304

DZ804

C81

DZ82

1/2W-1K

50v-10u

MTZJ18B

PC817C

PC801

4

3

R220

R212

R211

R286

R278

R222

A6-5V

3.3K

3.3K

3.3K

3.3K

4.7K

4.7K

STANDBY

R209

SCL

100

C209

R210

A5-3.3V

DZ259
MTZJ5.1B

L202
10uH

39K

VD-N

R807
1/2W-3.3M

R219

50V-2.2μF

A5-3.3V

R279

10K

R841
1K

10

12

14

15

16

17

18

19

100

R266

3.3K

C259
223

15K

C222
1u

C258

R280
39K

VD-P

POWER

FFPF10U20STU

1

R819

1/2W-1K

2

1/6W-10K

T1R5GU41

500V-560pF

VD806

500V-560pF

DZ803
KA431

R860

500V-560pF

VD805
T1R5GU41

VD803

C845

C847

C214

104

63V-102/392

R862

1/6W-15K

C810

63V-0.01μF

C231

C219
100u

C225

2kV-561pF

VD802

R818
1/2W-1.5K

R228
1/6W-39K

C227

C807

224

C216

C220
104

R226
15K

C221

472

C224

2.2u

63V-0.01μF

50V-104

C228
63V-0.022μF

C230

16V-10μF

R229

C232
63V-330PF

C233

50V-4.7μF

V805

2SB764(Y)

T1R5GU41-12.5-M

C814
63V-104

C226

R216
47

C217
224

C218
222

1/6W-3.9K

R861

1/6W-1.5K

V806
KSC815

25V-2200μF

25V-1000μF

56

C208

56

C223
104

R821

2W-1Ω

160V-100UF

C811

C846

C848

1000UF

R809

1/2W-39K

SDA

SYSTEM

MUTE

STAND BY

A7-8V

R281

A3-15.8

A7-8V

R840
1K

C823
332

T801

BCK-07-DE7

。

。

4

。

8

。

。

9

。

A6-5V

R215

3.3K
63V-0.01μF

N201

TDA8377

1

STANDBY

2

SCL

3

SDA

4 61

VT

5

KEY

6

SYSTEM

XTAL.OUT

7

MUTE

8

VOL

9

VSSC/P

10

CTL

11

STAND BY

12

VSSA

13

SEC.PLL

14

VP2

15

DECD/G

16

PH2.LF

17

PH1.LF

18

GND3

19

DEC.BG

20

INSS.W2(BL)

EWD

21

AUD.OUTV.DRB

22

CHROMA

V.BRA

23

IF.IN1

24

IF.IN2

25

CVPS.INT

I.REF

26

V.S.C.

27

IF.VO/SVO

AGC

28

AV.DEEM

29

DECS.DEM

30

GND2

31

SND.PLL

32

AVL

N802

L7809CS

C829

16V-100μF

MTZJ9.1B

R824
1/2W-1

R810
2W-18K

POWER

R001

1/6W-100K

C808

1N4148

R816

1/2W-123K

1/6W-15K

R817

1/2W-2.49K

R817A

1/6W-220

SCL

SDA

1/6W-100

R208

A6-5V

N202
24C08

RM201

A6-5V

1

8

C207

Wp

VDD

HS0038A

NC

PTC

A2

SCL
SDA

5

R230
1/6W-100

64

INT.REM

C234
63V-1000pF

63

AV/SVHS

AV1/AV2

62

AV1/AV2

VDDP

C236

16V-22μF

60

RESET

59

X201
12M

58

XTAL.IN

57

OSC.GND

56

VDD.C

55

VPE

54

VDD.A

C242

63V-0.1μF

53

B.OUT

52

G.OUT

51

R.OUT

R238
1/6W-1K

50

BLK.IN

R248

1/6W-6.8K

49

BCL.IN

C250

16V-10μF

48

B2/U.IN

47

G2/Y.IN

46

R2/V.IN

BL

45

C246

44

16V-10μF

43

C247
50V-1uF

42

CVBS/Y

41

GND1

40

39

VP1

C255

16V-100μF

38

R244
1/6W-390

37

PLL.IF

R275

R276

1/6W-270K

1/6W-27K

36

EHTO

C256

35

63V-0.1μF

AUO.EXT

R246
1/6W-8.2K

34

F.B.L.SO

R245

C249

1/6W-100

63V-150PF

33

H.OUT

R263

1/6W-3.3K

1/6W-200

H-DRI

L209
IN4004

A7-8V

B4-9V

DZ101

C108

16V-47μF

N808

A6-5V

L7805CS

C819

16V-100μF

A3-14.73V

V001

KSA539

A1-33V

100K
R003

100K
R002

V002

KSC815

A2-115V

A3-14.73V

AV/SVHS

C237
63V-0.1μF

R241
1/6W-4.7K

R242

1/6W-1K

63V-0.022μF

R247

VSS

C239
33

C240
33

C241
16V-100μF

C254

1/6W-100K

4

L206

LGA0203-100

L207
LGA0203-100

L208
LGA0203-100

R274
1/6W-22K

R249

1/6W-20K

R243

1/6W-1K

R264
470

R265
1/6W-75

C248

63V-0.1μF

R259

H-SYNC ABL

R943

OUT

GND

VCC

47

C922

100U

AV1/AV2

N702

9
10

10

R746

R747

11

11

3.3K

3.3K

12

12

13

13

C740

1UF

14

14

CVBS/Y

15

15

A5-3.3V

R235
1/6W-100

R236
1/6W-100

R237
1/6W-100

CUT-OFF

VD201
IN4148

R273

A3-5V

1/6W-33K

A7-8V

R277

1/6W-100K

V213

KSC815

R250
47

V209
KSC815

VD202
IN4148

V208

KSC815
DZ205
MTZJ4.7B

16

B-OUT

G-OUT

R-OUT

R752

2

1/6W-10

C750

21P-B

50V-1uF

21P-G
21P-R

R262*

1/6W-4.7K

CVBS/Y

L209

1N4004

L211

V210

10uH

KSR2010
C252
47u

Z203

4.5MHz
R254
180

R253
510

R252
100

R251

R256

1/6W-200

1/6W-470

C253

R255

50V-1uF

1/6W-430

A4-10.4V

DVD-5V

R849A

CSD

R849

1/6W-2.2K

A6-5V

1/6W-6.8K

2.2UF-50V

VD816

V804
KSC815

R848

R213

R847

1/6W-15K

1/6W-6.2K

POWER

STAND BY

V206

R214
1/6W-10K

KSC815

RT02

CNT01

TJC3-10A

CN704

TJC-2A

Y-SVHS

R718
1/6W-75

A0R
A0L
V-OUT

HEF4053

8169
7

6

5

4

V2

3

2

1

YS

C706
50V-1uF

去功放

C-SVHS

R257
47

C257

47u

V212

V-OUT

KSC815

R258*

W265

1/6W-75

1/6W-1K

V211
KSR1010

SYSTEM

A7-8V

100

AV2-VIN

V04

CNS01

RS03

75

R715
75

C722

50V-1uF

C727

9

10

10

11

11

12

12

13

SL

14

A2L

15

15

16

SL SR

HEATER

B1-180V

A4-10.4V

MUTE

POWER
A3-15.7V

AV1-VINAV1-ALAV1-AR

CT0175RS01

102

YC

CN200

C-SVHS

Y

OUT

VIDEO

50V-1uF

N703
HEF4052

低电平有效

VOL

V04
V03

CNS02

CN703

AV1-ARAV1-AL

AV1-V

C001

10u

Cb Cr

C002

10u

C003

R001

R002

10u

120

120

R003
120

R703

AV2-L

AV2-R

R704

1/6W-220

1/6W-220

R708

C705

1/6W-220

50V-1uF

A1L

A1R

R707

C725

1/6W-220

50V-1uF

8169

7

6

5
4

3

2

1

SR

1

SL

2

V03

3

去功放

+5V

高电平有效

R218

R233

1/6W-36KΩ

1/6W-10KΩ

VD-P

1/6W-1.2K

VD-N

DZ301

MTZJ22A

H-SYNC

B4-16.5V

A3-15.8V

V402

H-DRI

KSC2331-Y

A2-115V
HEATER
B1-185V VIDEO
ABL

R531

18K

CN001

TJC3-4Y

V531
C2688

C502
330p 270

CN503

CN501

TJC-5

R501

R-OUT

47

G-OUT

R-OUT

R502
47

B-OUT

G-OUT

R503

GND

47

B-OUT

CUT-OFF

CN502

TJC-3

HEATER

5

1
2

6

180V

3

7

R506
68

8

C508
10uF

N601
AN7522N

VCC1OUT22GND3OUT24MUTE5INPUT6GND7INPUT8VOL9OUT110GND11OUT1

R815

2W-0.18

C610
1000u

V622
KSA539

R605

1/6W-5.6KΩ

INPU T

INPU T2VCC3OUT4GND5VFB6OUT7VO8VI

R314

DZ303

1/6W-270K

MTZJ15C

R312

R305

1/2W-1.3

R313

1/6W-1.3K

C304

C303

100V-33uF

35V-100uF

R303

1/6W-100K

VD402
IN4004

VD401
IN4004

R403

500V-560pF

1/2W-270

C402

C401

100V-103

N301

TDA8357J

AA26-50001B

R536

LGA0305-10uH

T401

R532
220

V533
BF423

V503
BF423

V521
C2688

R512
10K

C503
470Pf

R505

2.8

R534

1.8K

R522

R521

220

18k

V523

R524

BF422

1.8K

R514

1.8K

R526
270

v522

BF423

R523

ZD501

390

R512
220

R511

V511

C2688

C501

470Pf

VD504
1N4148

VD505
1N4148

BZX79C8V2

V513

18K

BF422

V512
BF423

R516
270

R513

390

12

VD620

W610

1/6W-56K

C612

50V-1uF

R606

1/6W-5.6KΩ

R610

1/6W-5.6KΩ

C306
63V-0.047μF

R308

1/2W-1.5

1N4148

C620

R622

16V-100μF

1/6W-10K

v620

R620

KSA539

1/6W-10K

V621

R621

C611
63V-4700PF

C604

50V-1uF

R611

1/6W-5.6KΩ

9

R310
1/6W-1K5

R306
2W 0.68

R311

1/6W-12K

C603
63V-4700PF

R307*
2W 270

1/6W-33K

R623

1/6W-4.7K

Ly/50μH<R307*<Ly/20μH

2W-1K

LW

400uH/500uH/TK115/TK116

KSC815

C621

50V-1μF

C416

400V-364

VD406
TR5GU41

2W-7.5K
R413

L401

R414

LX034

SC

FO

HV

B

G

R

G1

CRT
A51LXR195X91JD

C510

102K/2KV
C511
100Pf

C509

SCREEN

4.7uf

R550
10M

VD507

TC2406------T

GT501 1P

GT502 1P

SPEAKER

CN601

SPEAKER

CN602

V1

V2

CN401

TJC-4

C415

H2

160V-1uF

H1

L306

R407
1W-3.9K

C417

DZ402
MTZJ5.1B

500V-470pF

VD403
TC2406

R302

1/2W-10

C422
104

2SD2499

R407
1/2W-0.39

R415

1/2W-1

C418
100V 33u

B3-15.8V

VD404
T1R5GU41

R409
1/2W-0.22

C403

500V-470pF

C404

25V-470uF

V401

R408
1/2W-33

LB3.5*5

2KV-681pF

C410

C409

1.6KV-752

2kV-681pF

C413
400V-472

L402

T444

BSC25-0283G

TO CRT

HV

HV

FO

8

46

16.5

HEATER

H-OUT

185v

C419

B+

125v

VD405

TTVR10G

SC

9

6

7

FO

1

4

5

SC

3

10 11

TO CRT PCB SCREEN & FOCUS

ABL

C414

C411

104

250V-22uF

R420

GT404

1/2W-120K

V-

V+

RB05

1.8K

TU101

AGC

C107
16V-10μF

R110

1W-33

L102

LGA0203-100

R104

1/6W-10

R261

VD217

R262
1/6W-9.1K

1/6W-68K

1N4148

R260

R227

1/6W-9.1K

1/6W-1K

R404

1/2W-120

N804

KA278R05

78R05

C852

3 4

16V-1000μF

CN810

5V

12V

CN706

DVD-AL

DVD-AR

CN801
TJC1-2Y

VD814
TRM11C

L801

LCL-207

Rx801

1/2W-3.3M
CN802
TJC1-2Y

P801

MZ73-14RM270V

DEGUSS

VD813
TRM11C

VD811

VD812
TRM11C

TRM11C

VD814
TRM11C

RP801

MF72-2-5Ω±N

150uF/400V

Sincere Forever

group

28