Read Sony KV-DB29M61 Service Manual online
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KV-DB29M61/M91/M98
RM-GA001
5-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before White
Balance adjustment.
Balance adjustment.
1. Receive digital monoscope pattern.
2. Set Picture Mode to "STANDARD".
3. Adjust focus VR so that the center of the screen
2. Set Picture Mode to "STANDARD".
3. Adjust focus VR so that the center of the screen
becomes just focus.
4. Change the receiving signal to white pattern and blue
back.
5. Confirm magenta ring is not noticeable. In case magenta
ring is obvious, then adjust FOCUS VR to balance
magenta ring and FOCUS.
magenta ring and FOCUS.
5-4. G2 (SCREEN) ADJUSTMENTS
1. Set the following condition:
- Picture and Brightness to "STANDARD".
- TV to Video mode.
- WHBL 16 "RGBB" to 01.
- TV to Video mode.
- WHBL 16 "RGBB" to 01.
2. Connect R,G,B of the C board cathode to oscilloscope.
3. Adjust Brightness to obtain the cathode value to the
3. Adjust Brightness to obtain the cathode value to the
value stated below.
4. Adjust SCREEN VR on the FBT until the scanning line
disappears.
5. Finally set WHBL 016 "RGBB" back to 00.
FLYBACK TRANSFORMER (T6805)
5-5. SUB BRIGHTNESS ADJUSTMENT
1. Set TV to RF Mode.
2. Input PAL monoscope to RF mode (OTHER model) and
2. Input PAL monoscope to RF mode (OTHER model) and
NTSC monoscope (NTSC model).
3. Set the following condition:
i) Set "PICTURE MODE" to "CUSTOM" and adjust
PICTURE to 0% and BRIGHTNESS to 50%.
ii) Receive RF PAL monoscope signal
(RF NTSC monoscope: NTSC models)
iii) Adjust Sub BRT (service item COLR 008 SBRT)
to make 10 IRE Slightly glimmer.
iv) Apply the offset steps according to TV size as in Sub
Brightness offset table
Preset constant
Sub Brightness offset
5-6. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode.
2. Input white raster signal using signal generator.
3. Set the following condition:
2. Input white raster signal using signal generator.
3. Set the following condition:
i) Receive 100 IRE PAL white signal.
ii) Set to "VIVID" mode.
ii) Set to "VIVID" mode.
SADJ 003 COL 60
➔ 00
iii) Adjust White Balance
COLR
003
GDRV
004
BDRV
006
GCUT
007
BCUT
4) i) Receive PAL ALL White signal (10 uit)
ii) Set to "VIVID" mode
SADJ 003 COL 00
➔ 100
iii) Adjust color offset
MCP
010
CBOF
011
CROF
Inch
R/G
B/G
34"
0.745
0.905
32"
0.775
0.915
29"
0.790
0.903
Inch
Offset
34"
Adjusted + 3 Steps
32"
Adjusted + 3 Steps
29"
Adjusted + 6 Steps
Cathode setting voltage:
170 V
170 V
± 2 (VDC)
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