Electrical Adjustments - Sony STR-DB798 Service Manual

Fm stereo fm/am receiver

Hide thumbs Also See for STR-DB798:

Service manual (96 pages)

Operating instructions manual (64 pages)

Easy setup manual (2 pages)

Table Of Contents

Table of Contents

STR-DB798

BIAS ADJUSTMENT

Condition:

input signal: no signal (no load)

volume:

minimum

Connection

CN432 (CN482, 532, 582, 632, 682, 732) pin 1

CN432 (CN482, 532, 582, 632, 682, 732) pin 2

Procedure:

1. Connect a digital voltmeter to the CN432 (CN482, CN532,

CN582, CN632, CN682, CN732) on the MAIN board.

2. Press the

button to turn on the main power.

I/1

3. Adjust the RV431 (RV481, RV531, RV581, RV631, RV681,

RV731) on the MAIN board so that the digital voltmeter

reading is 15±2 mV.

Note: When the adjusting voltage is higher than 15±2 mV, adjust the

voltage to the minimum voltage.

Adjustment and Connection Loacation:

– MAIN Board (Component Side) –

RV481

RV431

CN432

2 1

RV731

SECTION 5