SAT-A55/B55

2-1. UPPER CASE REMOVAL

Upper Case

2-2. HB BOARD REMOVAL

Power Button

Front Panel

Two Screws (BVTT 3 x 6)

Control Button

Four Claws

HB Board

SECTION 2

DISASSEMBLY

2-3. A, SC BOARD REMOVAL

Three Screws

 

(BVTT 3 x 8)

SC Board

 

One Screw

 

(BVTT 3 x 6)

 

 

A Board

Six Screws

Washer Hexagon Nut

(BVTT 3 x 6)

One Screw (BVTT 3 x 6)

Two Screws (BVTT 3 x 6)

Two Screws (BVTT 3 x 8)

Two Hexagon Screws

One Screw (BVTT 3 x 6)

SECTION 3

SERVICE TEST

Use the following procedure to run the service test:

1.Turn power on.

2.Enter Service Test screen by simultaneously pressing the menu button and the down arrow button on the front panel of the unit.

3.Select the TEST button on the Service Test screen. The test will diagnose and identify the following:

IRD

DEMOD TYPE

DEMOD SIGNAL

AV7100

RAM TEST

ROM

TELCO

VERIFIER, CAM

ACCESS CARD

CHECKSUM

EEPROM

4. To reset the unit, simultaneously press the guide button and the down arrow down button on the front panel of the unit.

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Sony SAT-A55 RM-Y802, SAT-B55 RM-Y139 service manual Section Disassembly, Section Service Test