LC-M3700 (serv.man7). (7) Adjustment procedures - Sharp TV Service Manual (repair manual). Page 11

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27
LC-M3700
LC-M3710
3. Monitor section adjustment
Analog adjustment
1) Voltage adjustment
Adjustment item
Adjustment condition
Adjusting method
1
Setting
Using a signal generator, feed NTSC signal color
bars to the video input terminal of INPUT1.
1. Set the input to INPUT1.
2. Enter the process adjustment mode, set the
KOUTEI CHANGR item on Page 1 to MONITOR
with the VOL key and press the ENTER key.
3. The monitor process adjustment mode is
established.
2
VLS BIAS adjustment
Monitor process
adjustment mode
Page2
Connect a digital voltmeter to TL4103 (A-side) or
TL4103 (B-side) and adjust the VLS bias to
15.00V±0.05V.
3
GRAY LEVEL
Monitor process
adjustment
adjustment mode
Page2
Connect a digital voltmeter to TL4102 (A-side) or
TL4101 (B-side) and adjust the gray level to
14.50V±0.05V.
4
COM BIAS adjustment
Monitor process
adjustment mode
Page2
1. On the COM BIAS item, press the ENTER key to
display the adjustment pattern.
2. Set the value so that the flicker near the center of
the screen is minimized.
3. Press the ENTER key to make the pattern
disappear.
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