Each Setting And Adjustment; Idle Current Adjustment - Pioneer VSX-519V-K Service Manual

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8. EACH SETTING AND ADJUSTMENT

8.1 IDLE CURRENT ADJUSTMENT

A
1. Idle Current Adjustment
Measurement Points
TP201FL 3PIN : TEST POINT(+)
TP201FL 1PIN : TEST POINT(-)
TP201FR 3PIN : TEST POINT(+)
TP201FR 1PIN : TEST POINT(-)
B
TP201C 3PIN : TEST POINT(+)
TP201C 1PIN : TEST POINT(-)
TP201SL 3PIN : TEST POINT(+)
TP201SL 1PIN : TEST POINT(-)
TP201SR 3PIN : TEST POINT(+)
TP201SR 1PIN : TEST POINT(-)
• Adjustment Point and Measurement Points.... see fig1.
C
J
P.C.B SUB ASSY (AMP)
Idle current
VR: VR201FR
D
E
TP201FR 3PIN
TEST POINT(+)
TP201FR 1PIN
TEST POINT(-)
F
44
1
2
Adjustment
VR201FL
VR201FR
VR201C
VR201SL
VR201SR
TP201SR 1PIN TP201C 1PIN
TEST POINT(-) TEST POINT(-)
Idle current Idle current
VR: VR201SR VR: VR201C
TP201SR 3PIN
TEST POINT(+)
2
3
Points
1 Turn on the power.
2 Perform aging for one minute.
3 Connect a digital voltmeter to the measurement point.
4 Turn the adjustment VR so that the voltage becomes
in 2.0 mV ± 0.2 mV.
(Condition : No signal and no load)
TP201SL 1PIN
TEST POINT(-)
Idle current
VR: VR201SL
TP201C 3PIN TP201SL 3PIN
TEST POINT(+) TEST POINT(+)
[fig 1.]
VSX-519V-K
3
4
Procedure
SIDE A
TP201FL 1PIN
TEST POINT(-)
Idle current
VR: VR201FL
TP201FL 3PIN
TEST POINT(+)
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