Focus Adjustment - Sony TRINITRON KV-AR25M81A Service Manual

TLV Rotate TLV-2 VOL (29", 34") on DY
Rotate TLV VOL (25")
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

2-3. FOCUS ADJUSTMENT

FOCUS adjustment should be completed before W/B adjustment.
Focus
Screen
FLYBACK TRANSFORMER (T503)
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. Adjust focus VR so that the lion teeth becomes just focus.
4. Change the receiving signal to white pattern blue back.
5. Confirm Magenta ring is not noticable. Incase magneta ring is
obvious, adjust FOCUS VR to take balance of MAGENTA
RING and FOCUS.
– 13 –
KV-AR25M81A
RM-952