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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 

SDA data wire 

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 

ground 

Out 1 (+) 

Ch 1 output (+) 

In 2 

Ch 2 input 

GND(out 1) 

Ch 1Ground 

VOL 9 

Volume 

Control 

Out 1 (-) 

Ch 1 output (-) 

Out 2 (-) 

10 

Ch 2 output (-) 

Standby 

Mute input 

GND(out 2) 

11 

Ch 2 Ground 

In 1 

Ch 1 input 

Out 2 (+) 

12 

Ch 2 output (+) 

 
4.    N301: Vertical output (TDA8357A) 

Symbol 

PIN  Function  

Symbol  

PIN

Function  

INV IN 

Input 

PUMP UP 

Pump up power 

INV IN 

Input 

V OUT 

Vertical output 

Vcc 

Pump up power 

V PRO 

Vertical protection 

V OUT 

Vertical output 

V FEEDBACK 

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

Summary of Contents for BH2004D

Page 1: ...D COLOUR TELEVISION Service Manual MODEL BH2004D America Features 51cm super flat picture tube Auto search 181 program presetting and memory CCD V CHIP Haier Group Edition 2004 4 17 NO M MR AE BH2004D...

Page 2: ...y 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...

Page 3: ...t 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 groun...

Page 4: ...2 Block diagram TDA8377 PS N2 series with mono intercarrier sound demodulator 4...

Page 5: ...stment 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...

Page 6: ...4A 18 AVLT TDA9874A AVL delay time 0 OFF 1 2s 2 4s 3 8s 1 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 pr...

Page 7: ...t 7 TDA8377 1 TDA9377 0 TDA9378 1 EA Bit 6 16 9 1 Enable 0 EA Bit 5 RESERVE 0 EA Bit 4 RESERVE 0 EA Bit 3 YPbPr 1 YPbPr 0 Yuv 1 EA Bit 2 Blue Black back 1 Blue Back 0 Black Back 1 EA Bit 1 RESERVE 0 E...

Page 8: ...f digital ground of TV processor SECPLL 13 Internally connected VP2 14 2 nd supply voltage TV processor 8V DECDIG 15 decoupling digital supply of TV processor PH2LF 16 Phase 2 filter PH1LF 17 Phase 1...

Page 9: ...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 Soun...

Page 10: ...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...

Page 11: ...e 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 deflect...

Page 12: ...nvergence 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...

Page 13: ...106 25V 220 F C102 MTZJ5 1B DZ102 63V 0 1 F C101 1 6W 68K R261 1N4148 VD217 1 6W 9 1K R260 1 6W 1K R227 1 6W 9 1K R262 B4 12V C214 104 SYSTEM 1W 33 R110 LGA0203 100 L102 SDA SCL 1 6W 22 R103 SPEAKER S...

Page 14: ...group Sincere Forever 28...

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