KV-DA29M50 - Sony TV Service Manual (repair manual). Page 14

– 14 –

Note
Focus adjustment should be completed before W/B adjustment.

1. Receive digital monoscope pattern.
2. Set PIC 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, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS adjustment.

1. Receive dot/hatch pattern DRC-MF, DRC1250, DYNAMIC.
2. Turn FOCUS VR fully counter-clockwise.
3. Confirm the dot shape at the screen center. (Fig. 5-4)
4. Resume FOCUS VR.

Note
In case of turning NECK ASSY, loosen the screw 3 turns. Do not
move the position.

1. G2 (SCREEN) ADJUSTMENT
1. Set the PICTURE and BRIGHTNESS to normal.
2. Put to any signal input mode without signals.

  MCP : 001 RON

3. Connect R, G and B of the C board cathode to the

oscilloscope.

4. Adjust BRIGHTNESS to obtain the cathode voltage to the

value below.

5. Whilst watching the picture, adjust the screen VR [RV9002]

located on the flyback transformer to the point just before the
retrace lines disappear (to the point before cut-off).

2. WHITE BALANCE ADJUSTMENT
1. Set picture to Dynamic Mode.
2. [SADJ] COL 60 

t 00.

3. Fixed RDRV 

t 41.

4. Fixed RCUT 

t 31.

5. Adjust for highlight GDRV & BDRV.
6. Adjust for cut-off GCUT & BCUT.

1. Set picture to Dynamic Mode.
2. SADJ COL  00 

t 100.

3. Adjust for cut-off CBOF & CROF.

Set back SADJ COL 

t 60 (original condition).

0 V

170v ± 2 (VDC)

Fix a Permaloy Assy Correction
to the misconverged areas

a to d : Permaloy Assy Correction

 OK

 Turn NECK ASSY clockwise.

 Turn NECK ASSY counter clockwise.

a

b

c

d

Permalloy assembly