Kenwood DDX6027Y Service Manual page 36

DDX6027/6027Y/7017
DDX7037/7047/7067
QQ
3 7 63 1515 0
Adjustment Item
G Gamma 1
Adjustment
H Gamma 2
Adjustment
I R Sub-Brightness
Adjustment
J B Sub-Brightness
Adjustment
TE
K R Sub-Contrast
L 13942296513
Adjustment
L B Sub-Contrast
Adjustment
M V-COM Amplitude CH : 1
Adjustment
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36
ADJUSTMENT
Test Mode
Adjustment Method
Display
CH : 11 Monitor waveform of 59 pin TP: VG of CN905 with an
oscilloscope and adjust the oscillation width of forward
rotation-side pedestal and forward rotation-side Step 9.
CH : 12 Monitor TP: VG waveform of 59 pin of CN905 with an
oscilloscope and adjust the oscillation width of forward
rotation-side pedestal and forward rotation-side Step 10.
CH : 8 Monitor waveform of 58 pin TP: VR and 59 pin TP: VG of
CN905 with an oscilloscope and adjust so that the pedestal
of Step 1 of the forward rotation side of TP: VR will be
0.1Vpp higher than the pedestal of Step 1 of the forward
rotation side of TP: VG.
CH : 9 Monitor waveform of 60 pin TP: VB and 59 pin TP: VG of
CN905 with an oscilloscope and adjust so that the pedestal
to Step 1 of the forward rotation side of TP: VB will be the
same as the pedestal to Step 1 of the forward rotation
side of TP: VG.
CH : 14 Monitor waveform of 58 pin TP: VR and 59 pin TP: VG of
CN905 with an oscilloscope and adjust so that the pedestal
to Step 9 of the forward rotation side of TP: VR will be
0.1Vpp higher than the pedestal to Step 9 of the forward
rotation side of TP: VG.
CH : 15 Monitor waveform of 60 pin TP: VB and 59 pin TP: VG of
CN905 with an oscilloscope and adjust so that the pedestal
to Step 9 of the forward rotation side of TP: VB will be the
same as the pedestal to Step 9 of the forward rotation
side of TP: VG.
Monitor waveform of 39 pin TP: VCOM of CN905 with an
oscilloscope and adjust the oscillation width of the VCOM
rectangular wave.
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3 6 7 1 3
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2 9 9 4 2 8
Adjustment Value
Condition
(Temporary)
3.0V±0.05V Input signal
: None
Input signal
3.3V±0.05V : 10 STEP (NTSC)
1Vpp V/S ratio
: 7:3 (75Ω terminated)
0.1V±0.05V X34 AVIN input
Oscilloscope range
: 500mV/DIV
AC
0V±0.05V
0.1V±0.05V
1 5 0 5 8 2 9 9 4
0V±0.05V
2.15Vpp±0.05V
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9 9
2 8 9 9