Sharp LC-121M2E, Руководство по обслуживанию

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LC-121M2E
LC-150M2E LC-121M2E
LC-150M2E
5-6-2. AV input Adjustment
Adjustment Adjustment conditions Adjustment method
1 Brightness adjustment 1. Input the standard colour bar signal 1. Adjust N358 BRIGHTNESS, and
(N358) (the same pattern as that of 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 1. Input the standard colour bar signal 1. Adjust R CUTOFF so as to equalize
(the same pattern as that of 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 1. Input the standard colour bar signal 1. Adjust B CUTOFF so as to equalize
(the same pattern as that of JPN-8CH) the black levels of green and blue.
of N358 into AV1.
2. Connect the oscilloscope to TP821
(IC803, pin7, G output).
3. Connect the oscilloscope to TP820
(IC803, pin8, B output).
4 Unicolor adjustment 1. Input the standard colour bar signal 1. Adjust N358UNICOLOR, and
(N358) (the same pattern as that of JPN- adjust so as to get 100% white-
8CH) of N358 into AV1. black level video component equal
2. Connect the oscilloscope to TP821 to 2.3
±
0.05Vp-p.
(IC803, pin7, G output).
5 R DRIVE adjustment 1. Input the standard colour bar signal 1. Adjust so as to get 100% white level
(the same pattern as that of JPN- identical 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).