Self Diagnosis Function; Diagnostic Test Indicators - Sony XBR-55X850D Service Manual

SELF DIAGNOSIS FUNCTION

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 .
RED LED blinking count
2x
3x
4x
5x
6x
7x
8x
Red italic: detect at startup sequence only.
XBR-55X850D/855D/857D, 65X850D/855D/857D, 75X850D/855D/857D
<G>: Power supply board, <B>: Main board, <T>: Tcon board, (LD) board,<P>: Panel module,
<S>: Speaker, <A>: Power Adapter, <D>: DPS 4K BE board
<G/B/A> Main 12V over voltage [MAIN_POWER]
<B> Main 5.0V failure [DC_ALERT]
<B/S> Audio amp. protection [AUD_ERR]
None
<P/T/G/B> Panel ID EEPROM I2C No ACK (Also panel power failure is a suspect) [P_ID_ERR]
<T> Tcon IC I2C communication error [TCON_ERR]
<G/P/B/LD/D> Backlight failure [BACKLIGHT] or
<LD/P/D> LED driver failure/LED voltage protection
Over temperature protection [TEMP_ERR]
<B> Temp. sensor I2C No ACK [TEMP_ERR]
<B/D> V By One lock error between Main device and 4KBE device [4KBE_ERR]
<B>4KBE device UART communication error detection.
<B/D> Software error [SW_ERR]
Detection Items
8