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

Page 12

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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Contents Model Specifications For Digital Satellite Receiver Input JacksSafety CHECK-OUT For Satellite AntennasSAT-A55/B55 Chassis SAN-18D3 Electrical Parts List Table of ConentsGeneral Connecting the Satellite Dish Antenna and Telephone Line GeneralAdding a VCR and Audio System Inserting the Access Card Using Your Remote Control RM-Y139 Remote Control SAT-B55 model Troubleshooting Troubleshooting Section Disassembly Section Service TestSAT-A55/B55 SAT-A55/B55 Section Diagrams SC Board Schematic Diagram HB Board Schematic Diagram Smart Card Front PanelBoard * Mark List 1/4 # = not MountedBoard * Mark List 2/4 Board Transistor Board IC Voltage List 2/4SAT-A55 SAT-B55 Board * Mark List 3/4 Board * Mark List 4/4 IC CS492CLDiode Transistor CrystalBoard Conductor Location Semiconductors Section Exploded Views GUIDE, LEDBUTTON, Multi Foot 10 * 4-074-791-01 CASE, LowerMount ASSY, Reflector REFLECTOR, Mounting BaseLABEL, Model Number ARM ASSY, LNBSection Electrical Parts List CapacitorElect CAP,ELECT 2KVConnector FilterDiode SAT-A55 onlyFuse Ferrite BeadJack CoilResistor RES, ChipMetalchip Short Switch CHIP, NetworkModulator TransformerRemote Commander TunerVaristor Chip ConductorSAT-A55/B55 SAT-A55/B55 Sony Corporation