Kenwood KVT-910DVD Service Manual page 47

Item
5. VCOM amplitude
adjustment
iVR93
(COM-AMP)
6. VCOM center
adjustment
oVR92
(COM-OUT)
7. Flicker adjustment
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ADJUSTMENT
Adjustment Method & Value
F. Adjust the seventh step from the pedestal to 3.1V ± 0.1V at
yVR95 (GMA2).
4.0V
G. rVR90 (BRT) Adjust the third step from the pedestal to
the maximum.
4.0V
H. Adjust the 11 step from the pedestal to 3.1V ± 0.05V at
uVR94 (CONT)
4.0V
Adjust the VCOM amplitude to the following at iVR93
(COM-AMP).
Adjust the VCOM waveform to the following atoVR92
(COM-OUT).
GND
Adjust the flicker (60Hz component) to the minimum at
VR92.
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
3.1V
Maximu
3.1V
7.8 ± 0.1V
7.8V
1.5 ± 0.5V
1.5V
Condition
• Input signal
composite input
(10-step signal)
• Set to AC range.
• Oscilloscope
0.5V/DIV
• Input signal
composite input
(10-step signal)
• Set to AC range.
• Oscilloscope
0.5V/DIV
• Input signal
composite input
(10-step signal)
• Set to AC range.
• Oscilloscope
0.5V/DIV
• Input signal
composite input
(10-step signal)
• Set to AC range.
• 2V/DIV
• Input signal
composite input
(10-step signal)
• Set to DC range.
• Input signal
composite input
Gray RASTA
(Easy to see level of
white 30~50%)
• Zoom mode
• Set to AC range.
• Flicker jig
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