Nikon Coolpix 8700 Repair Manual page 51

15-5. LCD Blue Brightness Adjustment
[How to]
1. Adjust LCD "R Bright" so that the amplitude of the CL427 waveform is (VG+0.15)±0.1 Vp-p with respect to
the CL426 (VG) waveform.
[Note]
This adjustment should be made after completing 15-2. LCD RGB Offset adjustment and 15-3. LCD Gain
adjustment.
15-6. LCD Vcom Adjustment
[How to]
1. Switch the oscilloscope to DC.
2. Adjust LCD "VCOMDC" so that the amplitude of the CL421 waveform is 5.6V ± 0.05Vp-p.
CL426 Waveform
CL427 Waveform
CL421 Waveform
- A31 ･ E8700 -
VAA26001-R.3627.A
VG
(VG+0.15)±0.1Vp-p
5.6V±0.05Vp-p