Read Sharp LC-121M2E (serv.man3) Service Manual online
12
LC-121M2E
LC-150M2E
LC-150M2E
LC-121M2E
LC-150M2E
LC-150M2E
6
B 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
TP820 (B output).
7
Colour level adjustment
1. Input the standard colour bar signal
Adjust N358 SCOLOR so as to get the
(N358)
(the same pattern as that of JPN-
colour bar signal blue amplitude
8CH) of N358 into AV1.
(black level - peak level) equal to 2.0V
2. Connect the oscilloscope to TP820
±
0.05Vp-p.
(B output).
8
Tint adjustment
1. Input the standard colour bar signal
1. Adjust N358TINT so as to get the
(N358)
(the same pattern as that of JPN-
colour bar signal magenta amplitude
8CH) of N358 into AV1.
(black level-peak level) equal to 1.7V
2. Connect the oscilloscope to TP820
±
0.05Vp-p.
(B output).
9
N443/PAL-M adjustment
1. Position the cursor on DATA COPY
1. The indication changes from WAIT
and press VOL key.
to SEND, and after the lapse of one
second WAIT is restored. Thus, N443,
PAL-M adjustment is completed.
10
4V adjustment
1. Connect the DC voltmeter to TP1110
1. Adjust R-ADJ to 4.0V
±
0.05V.
(DAC 6ch)
11
PAL/SECAM OSC
1. Input the monoscope pattern of PAL
1. Adjust PAL/SECAM OSC so as to
adjustment
into AV1.
get the normal screen.
(DAC8ch)
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