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ELECTRICAL ADJUSTMENT-3/3 (CD SECTION)
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< CD SECTION >
CD C.B
2
2
TE
L 13942296513
1. RF Adjustment
Test point: RF (IC2 1PIN) and VREF (IC2 3PIN)
1) Connect the oscilloscope to the test points.
2) Turn on power switch.
3) Load test disc (TDC-782) and play the second track.
4) Adjust VR1 so that RF waveform is maximum.
5) Turn off power switch.
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VR2
JW35
TSO
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2 9
8
VR1
RF
C17
3
IC2
Q Q
3
6 7
1 3
1 5
2. EF Balance Adjustment
Test point: TSO (IC2 35PIN) and VREF (IC2 3PIN)
1) Connect an oscilloscope to the test points.
2) Turn on power switch.
3) Load test disc (TCD-782) and play.
4) Press skip button so that EF
waveform appears.
5) Adjust VR2 so that EF waveform is symmetrical.
6) Turn off power switch.
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9 4
2 8
1
1
test point
VREF
0 5
8
2 9
9 4
2 8
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9 9
9 9
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