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5. Comb Filter Phase Adjustment
[Connection]
�
VR1 1 1
TP141
[Adjustment I Check]
Measuring Point
Measuring Equipment
Oscilloscope
TP1 02 (CH 1 )
TP1 05 (EXT)
TP1 41 (GND)
Color bar
ADJ. Location
VR1 1 1
Preparation:
• POWER switch: "PLAYER"
Adjusting I Checking method:
• Short pin @ , pin ® and pin @ of J1 005.
1 . Adjust with VR1 1 1 so that the amplitude (residual chroma
level) of green becomes minimum.
Residual chroma level
� minimum
s
TP1 02
0
QCH2
Condition
Stop
I
Input Signal
Alignment Tape
ADJ. / Check Value
6. Comb Filter Level Adjustment
[Connection]
EXT
[Adjustment I Check]
Measuring Point
TP1 02 (CH 1 )
TP1 05 (EXT)
TP1 41 (GND)
ADJ. Location
VR1 02
Preparation:
• POWER switch: "PLAYER"
Adjusting I Checking method:
• Short pin @ , pin ® and pin @ of J1 005.
1 . Adjust with VR1 02 so that the amplitude (residual chroma
level) of greeen becomes minimum (below 20 mVp-p).
- 5-1 7 -
� VR1 02
TPl 05
TP1 02
TP1 41
0
QCH2
Measuring Equipment
Oscilloscope
I
Input Signal
Alignment Tape
Color bar
ADJ. / Check Value
Residual chroma level
� minimum
EXT
Condition
Stop
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