Panasonic DVD-A7

12.2. Video Output (Chrominance Signal) Adjustment
Do this adjustment after replacing a P.C.B.
Measurement point Adjustment point Mode Disc
Video output
terminal
VR3511 (mother
P.C.B.)
Color bar 75%
PLAY (Title 46):DVDT
-S15
PLAY (Title 12):DVDT
-S01
DVDT-S15
or
DVDT-S01
Measuring equipment, tools Adjustment value
Screwdriver,Oscilloscope
200mV/div, 10 sec/div
671mVp-p±13mV
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and
terminate at 75 ohms.
2. Adjust VR3511 so that the chrominance signal (C) level becomes
671 mVp-p±13 mV.
12.3. Video Component Signal (CB) Output Adjustment
Do this adjustment after replacing a P.C.B.
Measurement point Adjustment point Mode Disc
Video output
terminal
(Y) (CB) Output
terminal
VR3201 (module
P.C.B.)
Color bar 75%
PLAY (Title 46):DVDT
-S15
PLAY (Title 12):DVDT
-S01
DVDT-S15
or
DVDT-S01
Measuring equipment, tools Adjustment value
Screwdriver, Oscilloscope
100mV/div, 10 sec/div
525mVp-p±11mV
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