SONY TAVA80ES
Manual de Servicio

SECTION 3 ELECTRICAL ADJUSTMENTS
DC BIAS CURRENT Adjustment (with no signal input)
Note: 1. DC BIAS CURRENT adjustments should be made 30 seconds after the POWER switch is turned on (POWER ON). 2. After replacing the power transistors, DC BIAS CURRENT adjustments should be perfomed.

Procedure:
AMP BOARD R615 R665 R016 R715 R765 1 2 3 Digital volt meter
Connecting point Adjustment part RV601 RV651 RV001 RV701 RV751 Reading on Digital volt meter 20 mV 20 mV 20 mV 20 mV 20 mV

+ �

FRONT Lch FRONT Rch CENTER REAR Lch REAR Rch

R615 R665 R016 R715 R765

[AMP BOARD] (COMPONENT SIDE)

R665 1 2 3 FRONT Rch RV651 D971 D972 3 2 R668 C985 1 R615 RV601 FRONT Lch D973 C988 C987 R618

R765 1 2 REAR Rch 3 RV751 C986

R718

RV701 3 R715 R768 R017 RV001 3 2 1 R016 2 1

REAR Lch

CENTER

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