Read Sony KDL-26EX550 / KDL-32EX550 / KDL-32EX650 / KDL-40EX650 / KDL-46EX650 Service Manual online
KDL-26/32EX550, 32/40/46EX650(CH)
8
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.
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.
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.
0.5
0.5
3
DISPLAY OF STANDBY LED FLASH COUNT
SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
5
*
: Note that this differs from entering the service mode (volume +)
*
DISPLAY
TV POWER
Channel
Volume
STBY LED
Flash time
Service menu Item
name
(Screeen Display)
Diagnostic Item Description
2
MAIN_POWE
Main 12 V failure
DC_ALERT
Main 5.0/3.3/1.2 V failure
AUD_PROT
Audio am p. Protection
HDMI_EQ
HDMI equalizer/s witch I2C NACK
TU_DEMOD
Tuner or dem odulator I2C NACK
4
-
Not us ed
5
P_ID_ERR
Panel ID EEPROM I2C NACK
6
BACKLITE
Backlight failure
TEMP_ERR
Over tem perature protection
FAN_ERR
Not us ed
8
-
Software Error (Als o the m ain board’s m em ory or Wi-Fi
m odule is a s us pect)
m odule is a s us pect)
9
-
Not us ed
10
-
Not us ed
11
-
Not us ed
12
-
Not us ed
3
7
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