XBR-49/55/65/75X900E
SELF DIAGNOSIS FUNCTION
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 .
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.
<G>: Power supply board, <B>: Main board, <T>: T-con board,
<JK>: Power supply board for Power Adaptor, <LD> LD board, <P>: Panel module
<S>: Speaker, <A>: Power Adaptor, <Tu>: Tuner board
Blue italic: detect at startup sequence only.
The following items will be recorded and displayed on screen although they do not carry out the RED LED blinking count.
RED LED blinking count Detection Items
2x
<B/G/A/JK> Main 12V over voltage [MAIN_POWER]
3x
<B/G/A/JK> Main 5.0V failure [DC_ALERT]
<B/S/K/G/A/JK> Audio amp. protection [AUD_ERR]
4x
<LD/P/B/Tu/G/A/JK> 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]
5x
<P/T/G/A/JK/B> Panel ID EEPROM I2C No ACK (Also panel power failure is a suspect) [P_ID_ERR]
6x
<G/P/B/LD> Backlight failure [BACKLIGHT]
7x
Over temperature protection [TEMP_ERR]
<B/P> Temp. sensor I2C No ACK [TEMP_ERR]
8x
<B> 4KPQ Error (4KPQ WDT)
Record Only Item Detection Items
TU_DEMOD
<B/Tu> Tuner & Demodulator I2C communication failure
Tuner board set detect signal monitoring
TCON_ERR <T> T-CON device I2C communication failure
FRCTC_I2C
<B> FRC device is not finished Initial sequence
FRC device I2C communication failure
AUD_ERR_I2C <B> Audio amp I2C communication failure
4KPQ_ERR_I2C
<B> 4KPQ device I2C communication failure
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