Pioneer A-550R-S Service-Handbuch - Seite 22

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Pioneer A-550R-S Service-Handbuch
A-550R.
A-450R
5. ADJUSTMENTS
IDLE CURRENT ADJUSTMENT
1. Connect measuring instrument as Fig. 5— 1.
2. Set the VOLUME
CONTROL to minimum.
3. Set the POWER switch to ON.
4. Adjust VR201
(VR202) so that the voltage between TP1 (TP3) and TP2 (TP4) becomes
20mV+ 3mV.
NOTE)
After turning on the power, wait at least 5 minutes before
adjustment.
DC
DC
Voltmeter | | Voltmeter
AF COMPLEX
assembly
Fig. 5—1
Adjustment Method
28