Self Diagnosis Function - Sony KDL-50R550A Service Manual

Service manual (50 pages)

Repair manual (33 pages)

Specifications (4 pages)

Table of Contents

(S ELF DIAGNOSIS FUNCTION )

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash. The number of times the LED flashes translates

to a probable source of the problem.

LED

A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user's knowledge and reference. If an error symptom cannot be reproduced, the remote

commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.

(D IAGNOSTIC TEST INDICATORS )

When an error occurs, the STANDBY LED will flash a set number of times to indicate the

possible cause of the problem . If there is more than one error, the LED will identify the first of the

problem areas. Result for all of the following diagnostic items are displayed on screen.If the screen

displays a "0", no error has occurred .

(D ISPLAY OF STANDBY LED FLASH COUNT )

(S ELF-DIAGNOSTIC SCREEN DISPLAY )

For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that

cannot be confirmed, it is possible to bring up past occurrences of failure for confirmation on the screen:

[

][To Bring Up Screen Test]