KDL-46HX900, KDL-46HX903, KDL-46HX905, KDL-52HX900, KDL-52HX903, KDL-52HX905 — Sony TV Service Manual (repair manual). Page 10

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KDL-46/52HX900,903,905(AEP/UK)
10
SELF DIAGNOSIS FUNCTION
DIAGNOSTIC 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 .
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.
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.
STBY LED
Flash time
Service menu Item name
(Screen Display)
Diagnostic Item Description
2
MAIN_POWE
Main Power Over Voltage Protection
DC_ALERT
DC_ALERT
DTT_WDT
DTT Error
AUD_PROT
Audio Abnormal Detection
4
BALANCER_
Panel Balancer Error
TCON_ERR
T-CON Error
HFR_ERR
HFR Error
P_ID_ERR
Panel ID NVM Error
6
BACKLITE_
Back Light Error (Panel Inverter)
TEMP_ERR
Thermal Error
-
RGB sensor I2C Error
FAN_ERR
FAN Error (Not Detected. Display Only)
8
-
Not used
9
-
Not used
10
-
Not used
11
-
Not used
12
-
Not used
-
RGB_SEN
RGB Sensor ACK Error
3
5
7
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