Focus Adjustment - Sony Trinitron KV-AR25M61 Service Manual

KV-AR25M61
RM-995
TLV Rotate TLV-2 VOL (29", 34") on DY
Rotate TLV
XCV Rotate XCV Adj core on DY
YCH Rotate YCH VOL on DY
TLH Insert TLH
ON DY:
TLV2
(3) Screen-corner Convergence
b
c
Fix a Permalloy assy corresponding to the misconverged
areas.
a
d
Permalloy assembly
VOL (25")
Correction Plate to DY Pocket
(Left or Right)
YCH TLV1
XCV
a
a-d : screen-corner
misconvergence
d
b
c

3-3. 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.
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