JVC TK-1280E - Page 43

TK-1280E/-180E/-1281EG
TP-6(R-YO) | R77 (R-Y1 @ CCD OUT: 170mV (TK-1280), 200mV (TK-1180)
adjustment TP-7(R-Y1) | GAIN) . Connect the oscilloscope 1CH to TP-6
[MAT /ENC [MAT /ENC (R—- YO).
board] | board] . Connect the oscilloscope 2CH to TP-7
(R-Y1).
. Invert the 2CH waveform and add to 1CH.
. Use R77 (R-Y1 GAIN) to adjust the
waveform so that it may become flat.
B-Y1 GAIN | Oscilloscope, | TP-8 (B-YO) | R85 @ CCD OUT: 170mvV (TK-1280), 200mV (TK-1180)
adjustment TP-9 (B-Y1) (B-Y1 GAIN) 1. Connect the oscilloscope 1CH to TP -8
Color bars [MAT/ENC [MAT /ENC (B- YO).
board] board} . Connect the oscilloscope 2CH to TP -9Q
(B-Y1).
. Invert the 2CH waveform and add to 1CH.
. Use R85 (B-Y1 GAIN) to adjust the
waveform so that it may become flat.
Y SET UP Oscilloscope | VIDEO OUT R114 (Y SET UP) | @IRIS: CLOSED
adjustment [MAT /ENC 1. Connect a waveform monitor or oscilloscope
board] to the video output.
2. Adjust Y SET UP to 53.5 mV (NTSC) /52.5 mV
(PAL) with R114 (Y SET UP).
(Waveform monitor : 7.5 IRE/7.5 %)
Waveform VIDEO OUT R111 (Y GAIN) @ CCD OUT: 170mV (TK-1280), 200mvV (TK-1180
adjustment monitor or [MAT /ZENC . Connect a waveform monitor or oscilloscoe
Oscilloscope, board] to the video output.
. Reset the Y KNEE.
Gray scale . Adjust the video output to 714 mV (NTSC) /
700 mV (PAL) with R111 (Y GAIN).
(Waveform monitor : 100 IRE/100 %)
4. Y KNEE adjustment.
100 IRE/100 %
(714 mv/700 mV
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