1. Remove the 2 screws.
2. Remove the 2 screws.
3. Release the three tabs.
12. Electrical Adjustment
12.1. Video Output (Luminance Signal) Adjustment
Do this adjustment after replacing a P.C.B.
Measurement point
Adjustment point
Mode
Disc
Video output
terminal
VR3501 (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
1000mVp-p±20mV
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and
terminate at 75 ohms.
2. Adjust VR3501 so that the luminance signal (Y+S) level becomes
1000 mVp-p±20 mV.
38
Summary of Contents for DVD-A7
Page 32: ...11 12 Optical Pickup Tilt Adjustment 32 ...
Page 33: ...33 ...
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Page 35: ...35 ...
Page 51: ...18 4 Packing Accessories Section Exploded View 51 ...
Page 52: ...19 REPLACEMENT PARTS LIST 19 1 Casing Parts Mechanism Section Parts List 52 ...
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