Pioneer VSX-920-K, Руководство по обслуживанию

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VSX-920-K
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B
C
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F
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6. EACH SETTING AND ADJUSTMENT
6.1 IDLE CURRENT ADJUSTMENT
1. Idle Current Adjustment
• Adjustment Point and Measurement Points .... see fig1.
AMP ASSY
[Fig. 1]
SIDE A
Idle current
VR: V1201
FL
TP1201 FL 1 PIN
TEST POINT (–)
TP1201 FL 3 PIN
TEST POINT (+)
TP1201 SBR 3 PIN
TEST POINT (+)
TP1201 SBR 1 PIN
TEST POINT (–)
TP1201 SBL 3 PIN
TEST POINT (+)
TP1201 SBL 1 PIN
TEST POINT (–)
TP1201 FR 3 PIN
TEST POINT (+)
TP1201 FR 1 PIN
TEST POINT (–)
Idle current
VR: V1201
C
Idle current
VR: V1201
SR
Idle current
VR: V1201
FR
Idle current
VR: V1201
SBL
Idle current
VR: V1201
SBR
Idle current
VR: V1201
SL
TP1201 C 3 PIN
TEST POINT (+)
TP1201 C 1 PIN
TEST POINT (–)
TP1201 SR 3 PIN
TEST POINT (+)
TP1201 SR 1 PIN
TEST POINT (–)
TP1201 SL 1 PIN
TEST POINT (–)
TP1201 SL 3 PIN
TEST POINT (+)
Measurement Points
Adjustment
Points
Procedure
V1201 FL
TP1201 FL 3PIN : TEST POINT(+)
TP1201 FL 1PIN : TEST POINT(–)
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)
V1201 FL
TP1201 FR 3PIN : TEST POINT(+)
TP1201 FR 1PIN : TEST POINT(–)
V1201 C
TP1201 C 3PIN : TEST POINT(+)
TP1201 C 1PIN : TEST POINT(–)
V1201 SL
TP1201 SL 3PIN : TEST POINT(+)
TP1201 SL 1PIN : TEST POINT(–)
V1201 SR
TP1201 SR 3PIN : TEST POINT(+)
TP1201 SR 1PIN : TEST POINT(–)
V1201 SBL
TP1201 SBL 3PIN : TEST POINT(+)
TP1201 SBL 1PIN : TEST POINT(–)
V1201 SBR
TP1201 SBR 3PIN : TEST POINT(+)
TP1201 SBR 1PIN : TEST POINT(–)
B
F
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