6x rot blinken das wirds wohl gewesen sein 😞
kannst auch selbst schauen beim service manual für dein gerät
https://servlib.com/sony/tv/kd-55x8501c.html?start=8
hier nur kurz ein auszug
KD-55/65/75X8501C (FW-55/65/75X8570C), 8505C, 8507C, 8508C, 8509C
9
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.
RED LED blinking count
Detection Items
2x
<G/B> Main 12V over voltage [MAIN_POWER]
3x
<B> Main 5.0V failure [DC_ALERT]
<B/S> Audio amp. protection [AUD_ERR]
<B> Tuner or demodulator I2C No ACK [TU_DEMOD]
<B> HDMI Switch/Equalizer I2C communication error [HDMI_EQ]
4x
None
5x
<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]
6x
<G/P/B> Backlight failure [BACKLIGHT]
7x
Over temperature protection [TEMP_ERR]
<B> Temp. sensor I2C No ACK [TEMP_ERR]
<B> V By One lock error betw
.....nicht überall ist ein experte drin wo experte draufsteht