Yamaha ANC-30U 서비스 매뉴얼 - 페이지 7

{카테고리_이름} Yamaha ANC-30U에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Yamaha ANC-30U 28 페이지. Stereo av amplifier

페이지 인쇄

AVC-30/30U/AV-34

li DISASSEMBLY

PROCEDURES

1. Removal of Top Cover

Remove 5 screws ( @ ).

2. Removal of Bottom Cover

Remove 10 screws ( © ).

3. Remove of Front Panel

Remove 6 screws ( (9) ).

Bottom Cover

Front Panel

ADJUSTMENTS

@ Idling Adjustment

€

Dolby Surround Distortion Factor Adjustment

To stabilize operation of the amplifier, turn ON the

With

INPUT

BALANCE

and VOLUME

set to their

power in the no-signal state and wait for two minutes

maximum, apply а 1kHz, 150mV signal.

before the adjustment.

Adjust REAR

LEVEL so that 1.5V REAR

output is

Adjust VR601

(Lch) and VR602

(Rch) so that the

obtained, then adjust VR603 so that the distortion

voltage at both В587 (Lch) and В588 (Rch) becomes

. factor of the REAR output becomes less than 196.

DC3mV to 4mV.

ППП

rpm rrr

гиге

ыч

Main Circuit Board (1)

и-СОМ Circuit Board (1)

4587

VR601

С |

R588

nay

VR603

Main Circuit Board (3)