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SERVICE MANUAL

 

                                                                                                                 

(continued)

 

10

 

SHPN 

SHARP MIN(difference from center) 

10 

 

SHPX 

SHARP MAX(difference from center) 

16 

ABCL 

ABL date in detail 

0C 

DCBS 

A part of Video date in detail 

15 

CLTB 

The date when TV mode & SOUND SYS 

= B/G 

8A 

CLTD 

The date when TV mode & SOUND SYS 

= D/K 

86 

CLTM 

The date when TV mode & SOUND SYS 

= M 

AC 

CLVO 

The date when YUV mode & SOUND 

SYS != M 

AD 

CLVD 

The date when YUV mode & SOUND 

SYS = M 

88 

PAGE5 

OSDA 

OSD ABL and OSD CONTRAST 

01 

HPOS Horizontal 

Position OPT

 

HPS 

Horizontal Position 60Hz(difference from 

HPOS) 

OPT

 

VP50 

Vertical Position 50Hz 

OPT

 

VP60 

Vertical Position 60Hz 

OPT

 

HIT Hight 

50Hz 

OPT

 

HITS 

Hight 60Hz(difference from HIT) 

OPT

 

VLIN 

V Linearity 50Hz 

OPT

 

PAGE6 

VLIS 

V Linearity 60Hz(difference from VLIN) 

OPT

 

VSC 

VS Correction 50Hz 

OPT

 

VSS 

VS Correction 60Hz 

OPT

 

HBOW  OPT

 

HPARA   OPT

 

UBLACK   0B 
VBLACK   0B 

AGC RF 

AGC 30 

PAGE7 

HAFC AFC 

GAIN  86 

NOIS   0F 

NDTC 

Noise detection count test 

1F 

MUTT 

Y-MUTE FOR SOFT START 

00 

STAT 

CONTRAST UP FOR SOFT START 

00 

VL1 

ALC off volume control level 

09 

VL25 No 

use 

45

 

60

VL50 No 

use 

60

 

PAGE8 

VLX No 

use 7F 

VA1 

volume level when ALC on(IC 

VER1.2_old) 

19 

VA12 No 

use  25 

VA25 No 

use 

45

 

3

VA50 No 

use 

60

 

VAX No 

use 7F 

SVM 

MON/SVM CO MAX SVM DL SVM GAIN 

10 

VBLK 

V BLK start    V BLK stop 

00 

PAGE9 

VCEN V 

CENTERING  17 

VB1 

volume level when ALC on(IC 

VER1.2_new) 

09 

VB25 No 

use 

45

 

VB50 No 

use 

60

 

VBX No 

use 7F 

FLG0 

FLAGS  for IF 

44 

FLG1 FLAGS  00 

PAGE10 

UCOM Miciom 

control  00 

Summary of Contents for SF21GA63

Page 1: ...COLOR TELEVISION SERVICE MANUAL MODEL NO CHASSIS NO ETA 1U Please read this manual carefully before service SF21GA63...

Page 2: ...CT SAFETY NOTICE 2 SAFETY SYMBOL DESCRIPTION 3 MAINTENANCE 3 ADJUSTMENTS 4 SET UP ADJUSTMENTS 4 CIRCUIT ADJUSTMENTS 7 STRUCTURE AND CHASSIS FUNCTION DESCRIPTION 13 STRUCTURE BLOCK DIAGRAM 13 CHASSIS D...

Page 3: ...ICE below 4 Service and adjustment of the TV may result in changes in the nominal EHT voltage of the CRT anode So ensure that the maximum EHT voltage does not exceed the rated value after service and...

Page 4: ...se characteristics are often passed unnoticed by a visual inspection and the X ray radiation protection afforded by them cannot necessarily be obtained by using replacements rated at higher voltages o...

Page 5: ...ts identified by the VDE marking have special safety related characteristics MAINTENANCE 1 Place the TV set on a stable stand or base that is of adequate size and strength to prevent it from being acc...

Page 6: ...t 1 3 Operate the TV for at least 15 minutes 1 4 Degauss the TV set using a specific degaussing coil 1 5 Set the brightness and contrast to maximum 1 6 Counter clockwise rotate the R B low brightness...

Page 7: ...Adjust two tabs of the 6 pole magnet to superimpose red blue line and green line 2 1 6 Remember red and blue movement Repeat steps 2 1 3 2 1 5 until optimal convergence is obtained 2 2 Circumference...

Page 8: ...en the lamp screw holding the deflection yoke assembly Fig 2 4 pole Magnet Movement 6 pole Magnet Movement Center Convergence by Convergence Magnets Incline the Yoke Up or Down Incline the Yoke Right...

Page 9: ...the TV 1 5 Repeat the above steps until the TV is degaussed completely 2 Confirmation and Adjustment for Voltage Caution B voltage has close relation to high voltage To prevent X ray radiation set B v...

Page 10: ...ng the back cover look for the FBT on the main PCB There should be a FCB on the FBT 4 2 Power on the TV and preheat it for 15 min 4 3 Receive a normal TV signal Rotate knob of the FCB until you get a...

Page 11: ...us data GDET0103 05 Table 3 Function Description for Bus Data Symbol Description Data OSD OSD Horizontal Position 4D OPT Optional Setting B3 RCUT R CUT OFF OPT GCUT G CUT OFF OPT BCUT B CUT OFF OPT GD...

Page 12: ...TS Hight 60Hz difference from HIT OPT VLIN V Linearity 50Hz OPT PAGE6 VLIS V Linearity 60Hz difference from VLIN OPT VSC VS Correction 50Hz OPT VSS VS Correction 60Hz OPT HBOW OPT HPARA OPT UBLACK 0B...

Page 13: ...T 04 STBG S TRAP B G 06 STI S TRAP I 08 STDK S TRAP D K 08 STM S TRAP M 03 SSBG S TRAP HP LP B G 08 SSI S TRAP HP LP I 08 SSDK S TRAP HP LP D K 08 PAGE13 SSM S TRAP HP LP M 09 SYNC 03 SYBBN BB judgeme...

Page 14: ...n 1 Second turn on 1 Bit1 0 NO signal 50Hz 1 NO signal 60Hz 1 Bit2 1 Bit3 Search speed 0 Bit4 0 KEY Turn on 1 POWER Turn on Bit5 FM_band 0 Normal 1Wide 0 Bit6 COLOR 0 NTSC PAL N PAL N 1 NTSC 0 Bit7 0...

Page 15: ...UCTURE AND CHISSIS FUNCTION DESCRIPTION 1 STRUCTUE BLOCK DIAGRAM 13 Audio Amplifier TMP8873 Video Amplifier H OUT V OUT Power Supply Circuit TUNER AVIN AVIN AVOUT IR KEY Structure Block Diagram for ET...

Page 16: ...nd bus control EEPROM AT24C16 for data memory LA78040 for vertical output power amplifying TFA9842AJ for audio power amplifying Thick film IC STR G5653 for power circuit adjustment and control The fol...

Page 17: ...P package The MCU contains 8 bit CPU ROM RAM I O ports timer counters A D converters an on screen display controller remote control interfaces IIC bus interfaces and the Closed Caption decoder The TV...

Page 18: ...g Italic underline function Two 8 bit internal timer counter 2 ch Conform to CCD REGULATION Time base timer watchdog timer Jitter elimination 16 interrupt sources external 5 internal 11 IIC bus interf...

Page 19: ...SERVICE MANUAL 3 Block Diagram 17...

Page 20: ...ble through the IIC bus of the internal connections 2 Power Supply TMPA8873 has some power supplies and GND pins Power supplies related MCU must be applied at the first Power supplies for H VCC and TV...

Page 21: ...SERVICE MANUAL 5 TERMINAL INTERFACE 19...

Page 22: ...SERVICE MANUAL 20...

Page 23: ...SERVICE MANUAL 21...

Page 24: ...SERVICE MANUAL 22...

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