M Board Adjustments Eee - Sony TRINITRON KV-27TW77 Service Manual

5-2. M BOARD ADJUSTMENTS
[H.FREQUENCY ADJUSTMENT (HFRE)
1. Input a color-bar signal.
2. Set to Service adjustment Mode.
3. Connect a frequency counter to CN131 Pin®) (H.
DRIVE) connector and ground.
4. Call the item of AFC, set to 3 level (free run).
5. Select HFRE with[1}and [4].
6. Adjust with 3|and|[6|for the 15734+ 60Hz.
7. Call the item of AFC again, adjust the level" 0 ".
8. Write into the memory by pressing |MUTING|then
ENTER].
V.FREQUENCY ADJUSTMENT (VFRE
1. Select video 1 with no connecting the signal.
2. Set to Service adjustment Mode.
3. Connect the frequency counter across
connectorCN131 Pin@ (V. DRIVE) connector
and ground. 2
. Select VFRE with[1]and{4J.
. Adjust with[]and|6|for the 55 +0.5Hz.
. Write the memory by pressing{MUTING]|then
ao oo
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KV-27TW7W/27T
KV-32TW77/32T
w7s
W778
M-Y118