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factory technician level - complete with board views :
( removing chassis from cabinet , only thing missing ) ;
on weekends , staff is not available so - be patient .
5-6-2. AV input Adjustment
conditions Adjustment method
LC-150M2H
1 Brightness adjustment Input the standard colour bar signal 1. Adjust N358 BRIGHTNESS, and
(N358) (the same pattern as that JPN-8CH) adjust the black level of G output so
of N358 into AV1. as to get DC 1.5±0.05V.
2. Connect the oscilloscope to TP821
(IC803, pin7, G output).
2 R-cut off adjustment Input the standard colour bar signal 1. Adjust R CUTOFF so as to equalize
(the same pattern as that JPN-8CH) the black levels of green and red.
of N358 into AV1.
2. Connect the oscilloscope to TP821
(IC803, pin7, G output).
3. Connect the oscilloscope to TP819
(IC803, pin1, R output).
3 B-cut off adjustment Input the standard colour bar signal 1. Adjust B CUTOFF so as to equalize
(the same pattern as that JPN-8CH) the black levels of green and blue.
of N358 into AV1.
2. Connect the oscilloscope to TP821
(IC803, pin7, G output).
11
3. Connect the oscilloscope to TP820
(IC803, pin8, B output).
4 Unicolor adjustment Input the standard colour bar signal 1. Adjust N358UNICOLOR, and
(N358) (the same pattern that of JPNadjust so as to get 100% white-
8CH) of N358 into AV1. black level video component equal
2. Connect the oscilloscope TP821 to 2.3±0.05Vp-p.
(IC803, pin7, G output).
5 R DRIVE adjustment Input the standard colour bar signal 1. Adjust so as to get 100% white level
(the same pattern as JPNidentical with that of green.
8CH) of N358 into AV1.
2. Connect CH1 of oscilloscope to
TP821 (G output).
3. Connect CH2 of oscilloscope to
TP819 (R output).
LC-150M2H
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