27
KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
Item
Adjustment method / Adjustment value
Conditions
3-8. R sub
1. Connect the oscilloscope to TP272 and TP272 between GND line.
• Input : AV1
CONTRAST
2. Adjust R sub CONTRAST (VR402) so that VR and VG 10step signal is same level
• Input signal : 10step signal
VR402 (X14-947)
(level difference
±
0.1V).
(NTSC composite video
signal)
• Oscilloscope : 0.5V/DIV AC
3-9. B sub BRIGHT
1. Connect the oscilloscope to TP272 and TP273 between GND line.
VR409 (X14-947)
2. Adjust B sub BRIGHT (VR409) so that VB and VG pedestal signal is same level
(level difference
±
0.1V).
3-10. B sub
1. Connect the oscilloscope to TP272 and TP273 between GND line.
CONTRAST
2. Adjust B sub CONTRAST (VR403) so that VB and VG 10step signal is same level
VR403 (X14-947)
(level difference
±
0.1V).
4. VCOM amplitude
1. Connect the oscilloscope to TP316A (X35-428) between GND line.
• Input : AV1
VR400 (X14-947)
2. Adjust VCOM (VR400) so that amplitude level is 6.73V
±
0.05V.
• Input signal : 10step signal
(NTSC composite video
signal)
• Oscilloscope : 1.0V/DIV AC
1. Confirm there is no flickering (display mode : zoom).
• Input : AV1
2. If the flickering is recognized, adjust VR203 so that the flicker level will be the
• Input signal : Gray
(30~50% white)
• Display mode : Zoom
1. Connect the oscilloscope to video output terminal for hideaway unit (video output is
• Input : DVD
resistor termination to GND).
• Input signal : White 100%,
2. Adjust VIDEO (VR700) so that amplitude level is 1.0Vp-p
±
0.05V when play for test
Gray (30~50% white)
disc for 100% white raster.
• Display mode : Zoom
Note : When the LCD ASSY or the touch panel switch ASSY is replaced, X14- and X35- Circuit, Touch panel and Start position is adjusted together
for test mode.
6.7V
±
0.05V
ADJUSTMENT
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