Kenwood DV-403 Service Manual page 18

DV-403
1. Video Output (Luminance Signal) Confirma-
tion
Do this adjustment after replacng a C.B.A.
Measu
rement point
Video output terminal
Measuring equipment, tools
Screwdriver, Oscilloscope
200mV/div, 10µsec/div
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video output terminal and
terminate at 75 ohms.
2. Comfirm that the luminance signal (Y+S) level becomes
1000 mVp-p±30 mV.
2. Video Output (Chrominance Signal) Confir-
mation
Do this adjustment after replacing a C.B.A.
Measurement point
Video output terminal
Measuring equipment, tools
Screwdriver, Oscilloscope
200mV/div, 10µsec/div
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 621 mVp-p±13 mV.
18
ADJUSTMENT
Mode Disc
DVD disc
Color bar 75%
(Color bar 75%)
Adjustment value
1000mVp-p±30mV
100mV
±
30mV
Mode Disc
DVD disc
Color bar 75%
(Color bar 75%)
Adjustment value
621mVp-p±13mV
621mV
±
13mV
3. Video Component Signal (CB) Output Con-
firmation
Do this adjustment after replacing a C.B.A.
Measurement point
Video output terminal
Measuring equipment, tools
Screwdriver, Oscilloscope
100mV/div, 10µsec/div
Purpose: To maintain video signal output compatibility.
1. Connect the oscilloscope to the video component output
terminal and terminate at 75 ohms.
2. Apply the trigger at the Y output terminal signal.
3. Comfirm so that the video component signal (CB) level
becomes 486 mVp-p ±11 mV.
Mode Disc
DVD disc
Color bar 75%
(Color bar 75%)
Adjustment value
486mVp-p±11mV
486mV
±
11mV