Focus Adjustment - Sony KV-XA25M50 Service Manual

TLV Rotate TLV-2 VOL (29", 34") on DY
Rotate TLV VOL (25") on DY
XCV Rotate XCV Adj core on DY
YCH Rotate YCH VOL on DY
TLH Insert TLH Correction Plate to DY Pocket
(Left or Right)
ON DY:
YCH
TLV2
(3) Screen-corner Convergence
b
a-d : screen-corner
misconvergence
c
Fix a Permalloy assy corresponding to the misconverged
areas.
a
d
Permalloy assembly
TLV1
XCV
a
d
b
c

4-3. FOCUS ADJUSTMENT

FOCUS adjustment should be completed before W/B adjustment.
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. Adjust focus VR so that the center of screen becomes
just focus.
4. Change the receiving signal to white pattern and blue back.
5. Confirm magenta ring is not noticeable. Incase magenta is
very obvious, adjust focus VR to take balance of magenta
ring and focus.
Focus
Screen
FLYBACK TRANSFORMER (T503)
– 67 –
KV-XA25M50/XA25M80/XA29M50
KV-XA29M80/XA29M90/XA29N90
RM-954
RM-954
RM-914