Main Assy Adjustment - Pioneer DVR-7000 Service Manual

DVR-7000

2.3 MAIN ASSY ADJUSTMENT

Note : Use disc : [ DVD test disc GGV1025]
No. Adjustment Name
Master clock free-running adjustment
1
(Clock system adjustment)
2
Y level adjustment of CVBS system
(Output system adjustment)
C level adjustment of CVBS system
3
(Output system adjustment)
Y level adjustment of component system
4
(Output system adjustment)
P level adjustment of component system
B
5
(Output system adjustment)
P level adjustment of component system
R
6
(Output system adjustment)
E
MAIN ASSY
Adj. Point Measurement Point
MAIN ASSY
IC4007 Pin54 (CLKO)
VC3001
(M65774AFP)
Y output of S terminal
VR7006
(75Ω termination)
C output of S terminal
VR7007
(75Ω termination)
MAIN ASSY
VR7003
CN7001 Pin11
(Y Out)
MAIN ASSY
VR7004
CN7001 Pin13
(P Out)
B
MAIN ASSY
VR7005
CN7001 Pin15
(P Out)
R
1
VR7004
VR7005 VR7003
VR7007
VR7006
IC4007
54
VC3001
Fig.2 Adjustment Point
Adjustment Value
27.000000MHZ
No input signal or during test disc play-
± 130Hz
back
Playback the DVD test disc(100%white).
1.00Vp-p ± 40mV
Terminate the Y output of S terminal with
75Ω and adjust so that the level of between
sync tip and white peak becomes 1.0Vp-p.
Playback the DVD test disc(100%color- bar).
286mVp-p ± 11mV
Terminate the C output of S terminal with
75Ω and adjust so that the amplitude of
color burst becomes 286mVp-p.
Playback the DVD test disc(100%white).
At the pin 11 of CN7001 in the MAIN ASSY,
800mVp-p ± 24mV
adjust so that the level of between sync tip
and white peak becomes 0.8Vp-p.
Playback the DVD test disc(100%color- bar).
At the pin 13 of CN7001 in the MAIN ASSY,
760mVp-p ± 22mV
adjust so that the level of between bottom
and top becomes 0.76Vp-p in the 100%
color-bar screen.
Playback the DVD test disc(100%color- bar).
At the pin 15 of CN7001 in the MAIN ASSY,
760mVp-p ± 22mV
adjust so that the level of between bottom
and top becomes 0.76Vp-p in the 100%
color-bar screen.
SIDE A
22
CN7001
Adjustment State
7