Kenwood DDX7015 Service Manual page 27

No. Adjustment Item Test Mode
3-K R sub-contrast CH : 14
3-L B sub-contrast CH : 15
3-M VCOM amplitude CH : 1
After adjusting 3-A~3-M and confirming them, press DIRECT key.
At this point, all data is written to the E2PROM. (Refer to Remote Controller Operating Method 6.)
Video Adjustment (X35-433)
Step Items
1 Flicker
2 Touch coordinate
3 Screen start point
ADJUSTMENT
Adjustment Method
Monitor the TP (CN850 58pin and 59pin) waveform, using an
oscilloscope.
It is adjusted so that 58pin signal level higher 0.1V than 59pin
signal (for 9 step signal).
Monitor the TP (CN850 60pin and 59pin) waveform, using an
oscilloscope.
It is adjusted so that 60pin signal level higher 0.1V than 59pin
signal (for 9 step signal).
Monitor the TP (CN850 39pin) waveform, using an oscilloscope.
Adjust the amplitude value so that VCOM square wave.
Condition
Composite Boot the unit in the Flicker Adjustment mode.
SYNC Set the range of oscilloscope to 5mV or less and adjust VR203 so that amplitude of
Gray PASTE waveform (flicker) will be the smallest.
(White 30~50%)
Press the [TOUCH] key in he Test Mode Main screen. Then, starting from the upper left
andin the order of upper right and lower left, conduct adjustment.
Confirm on the "Write OK!" display, and press [Return].
Monoscope Press on the [Hposi] key on the Test Mode Main screen.
(NTSC) Use the Graphic1 so that graphic is centered. Adjust with [<<] and [>>] keys.
TV reception Next, using the Graphic2, with TC1, [<<] and [>>] keys, adjust so that right and left will be
equal. Then, press on the [NEXT], and adjust on DVD, TV, VIDEO and NAVI one by one
with [<<] and [>>] keys.
Finally, confirm on the "Hposi OK" display, and press [Return].
Note :
• When adjusting Graphic1, from TV-SG, input monoscope (NTSC) and adjust.
• When adjusting TV Screen, connect the TV tuner below.
• When adjusting NAVI Screen, use DVZ-2200 and adjust with 2-screen display frame.
DDX7015/7025/7035
DDX7045/7065
Adjustment Value
0.1V±0.05V
0.1V±0.05V
2.25Vpp±0.05V
Adjustment / Inspection method
Condition
Input signal
: 10 step (NTSC)
1Vpp V/S ratio
: 7 : 3 (75Ω at
terminal)
X34 AVIN input
Oscilloscope range
: 500mV/DIV AC
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