LC-121M2E (serv.man3). Service Information - Sharp TV Service Manual (repair manual). Page 10

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10
LC-121M2E
LC-150M2E
LC-121M2E
LC-150M2E
5-6. Service Adjusting
5-6-1. Basic Adjustment
Adjustment
Adjusting conditions
Adjusting method
1
+B Adjustment
1. Connect the DC voltmeter to
1. Adjust +B-ADJ to 5.1V 
±
 0.05V.
TP1104
( DAC 9ch )
2
Model setup
1. Make sure that M2H has been set.
When M2H is selected, the item
(Not setting M2E)
settings are as follows.
TUNER
OFF
AUDIO MULTIPLEX
OFF
BOOSTER
0
SYSTEM
AUTO
COPY GUARD
ON
CH MEMORY
OFF
SECAM
ON
MULTI LANG.
OFF
TIMER
OFF
3
Counter-bias adjustment
1. Set the AV1 mode to set signal
1. Adjust COM so as to minimize the
noninput state.
waveform peak-peak.
2. Fit the specified adjusting instrument
(DAC7ch)
to the screen center.
3. Observe the adjusting instrument
output on the oscilloscope.
4
NTSC / PAL-MOSC
1. Input the monoscope pattern of
1. Adjust NTSC/PALM OSC so as to
adjustment
NTSC into AV1.
get the normal screen.
(DAC8ch)
8
DAC 2  1ch
0
255
0
Fixed
DAC 2  2ch
0
255
0
Fixed
DAC 2  3ch
0
255
0
Fixed
DAC 2  4ch
0
255
0
Fixed
DAC 2  5ch
0
255
0
Fixed
DAC 2  6ch
0
255
0
Fixed
DAC 2  7ch
0
255
0
Fixed
DAC 2  8ch
0
255
0
Fixed
DAC 2  9ch
0
255
0
Fixed
DAC 2  10ch
0
255
0
Fixed
DAC 2  11ch
0
255
0
Fixed
DAC 2  12ch
0
255
0
Fixed
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