Disassembly; Upper Case Removal; A, Sc Board Removal; Service Test - Sony SAT-A55 RM-Y802 Service Manual

SAT-A55/B55

2-1. UPPER CASE REMOVAL

2-2. HB BOARD REMOVAL
Front Panel
Two Screws
(BVTT 3 x 6)
Control Button
Four Claws
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.
SECTION 2

DISASSEMBLY

Upper Case
Three Screws
(BVTT 3 x 8)
Power Button
HB Board
SECTION 3

SERVICE TEST

2-3. A, SC BOARD REMOVAL

One Screw
(BVTT 3 x 6)
Six Screws
(BVTT 3 x 6)
One Screw
(BVTT 3 x 6)
— 12 —
SC Board
A Board
Washer Hexagon Nut
One Screw
(BVTT 3 x 6)
Two Screws
(BVTT 3 x 6)
Two Screws
(BVTT 3 x 8)
Two Hexagon Screws