Self Diagnostic Function - Sony KD-55X95 G Series Service Manual

2019/01/15 23:07:08 (GMT+09:00)
The units in this manual contain a self-diagnostic function. If an error occurs, the Smart Core Red LED will automatically begin to flash. The number
of times the LED flashes translates to a probable source of the problem.
A definition of the Smart Core Red 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.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the Smart Core Red 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 .
Self Diag. Quick Reference (LED blinking)
Smart Core RED LED
blinking count
2x
3x
4x
5x
6x
7x
8x

SELF DIAGNOSTIC FUNCTION

SB/SBL
<B/G> Main 12V over voltage [MAIN_POWER]
<B/G> Main 5.0V failure [DC_ALERT]
<B/S/G> Audio amp. protection [AUD_ERR]
<LD/P/B/G> LED driver failure/LED voltage protection
[LD_ERR]
<LD/P/B>Error detection of the I2C communication between the
Main device and the LD IC.[BCM_ERR]
<P/T/G/B> Panel ID EEPROM I2C No ACK
(Also panel power failure is a suspect) [P_ID_ERR]
<G/B> Backlight failure [BACKLIGHT]
<B/H/P> Over temperature protection [TEMP_ERR]
<B> 4KBE Error (4KBE WDT)
SECTION 2
Blue italic
: detect at startup sequence only
<G>: Power supply board,
<B>: Main board,
<T>: T-con board,
<LD>: LD board,
<P>: Panel module,
<S>: Speaker,
<H>:USB board
13
SYS SET