Focus Adjustment; Neck Assy Twist Adjustment - Sony KV-EX29M87 Service Manual

KV-EX29M87/EX29N93
RM-963 RM-966
(3) Screen-corner Convergence
b
a-d : screen-corner
c
Fix a Permalloy assy corresponding to the
misconverged areas.
a
d
Permalloy assembly
a
misconvergence
d
b
c

6-3. FOCUS ADJUSTMENT

Note
Focus adjustment should be completed before W/B adjustment.
(1) Receive digital monoscope pattern.
(2) Set "A/V CONTROL" 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.
Focus
FLYBACK TRANSFORMER (T6803)

6-4. NECK ASSY TWIST ADJUSTMENT

(1) Receive dot/hatch pattern DRC-MF, DRC1250/1050
(NTSC models), DYNAMIC.
(2) Turn FOCUS VR fully counter-clockwise.
(3) Confirm the dot shape at the screen center. (Fig. 6-4)
(4) Resume FOCUS VR.
Note
In case of turning NECK ASSY, loosen the screw 3 turns. Do not
move the position.
OK
Turn NECK ASSY clockwise.
Turn NECK ASSY counter clockwise.
– 54 –
Screen
(No Function)
Fig. 6-4