Pioneer A-209R 서비스 매뉴얼 - 페이지 27

{카테고리_이름} Pioneer A-209R에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Pioneer A-209R 35 페이지. Stereo amplifier
Pioneer A-209R에 대해서도 마찬가지입니다: 사용 설명서 (12 페이지), 서비스 매뉴얼 (6 페이지)

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6. ADJUSTMENT

6.1 IDLE CURRENT ADJUSTMENT

¶ CAUTION : Heatsinks' (Q323–Q326) DC level is equal to +B or -B.

Don't touch them or you will be electric shocked.

1. Connect the measuring instrument as shown in Fig.6-1. (R373 or R374)

2. Turn the POWER switch to ON.

3. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV ± 1mV.

4. Ages for 5 minutes.

5. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV ± 1mV.

DC Voltmeter

R373

R375

Heat Sink

VR301

Heat Sink

Fig.6-1 Adjustment Method

AF ASSY

SIDE A

Heat Sink

R374

R376

VR302

Heat Sink

CN202

A-209R, A-209