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Teac A-1D Service Manual

Teac A-1D
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2 ADJUSTMENTS
3
Bias Current Adjustment
1. Set the VOLUME control to "".
2. Set the POWER switch to ON and wait for 10 minutes for
preheating.
3. Adjust TVR1 so that the voltage between R142 (heat sink side)
and R141 (heat sink side) on AMP PCB becomes 10
±1mV.
4. In the same way, adjust TVR2 so that the voltage between
R143 (heat sink side) and R144 (heat sink side) becomes 10
±
1mV.
バイアス電流調整
1. VOLUMEつまみを "∞"にセットする。
2. 電源を入れ、10分間ウォーミングアップする。
3. AMP PCBのR142 (ヒートシンク側) とR141 (ヒートシン
ク側)間の電圧が、10±1mVになるようTVR1を調整する。
4. 同様にR143(ヒートシンク側)とR144(ヒートシンク側)間
の電圧が、10±1mVになるようTVR2を調整する。
調 整
R142R141R143R144
TVR2
TVR1
AMP PCB
DC voltmeter
DC voltmeter

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Teac A-1D Specifications

General IconGeneral
BrandTeac
ModelA-1D
CategoryAmplifier
LanguageEnglish

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