Category: LED LCD Television Repair and Service
Contents of this article
- How to enter to self diagnostic mode
- Led blinking codes
- Troubleshooting
SONY KDL-46V4800 - KDL-52V4800
SELF DIAGNOSIS
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.
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 .
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 .
LED BLINKING AND CAUSES
Number
of times STANDBY LED (Red) flashes
|
Monitoring
Items
|
Diagnostic
Item Description
|
2
times
|
DC_DET
|
Main
Supply Voltage (12V) Error.
|
6
times
|
PANEL_DET
|
Panel
detect Error.
|
7
times
|
TEMPERATURE
|
monitor
an Increase of an Inside-temperature.
|
8
times
|
AUDIO
|
Audio
error (SP protect).
|
9
times
|
HFR
|
HFR
Error (for EMH and Cumin).
|
10
times
|
DEF
|
DEF
(Digital Front End module) Error.
|
11
times
|
NVM
|
EEPROM
Error (notread/write availble).
|
12
times
|
I2C
|
VCT
I2C Bus Error.
|
13
times
|
BALANCER
|
Panel
Balance Error.
|
14
times
|
HDMI
|
HDCP
cannot be setup correctly.
|
15
times
|
TUNER
|
If
circuit of PLL circuit do not respond to I”C commands.
|
16
times
|
I2C
CH1
|
I2C
CH1Error in VERD.
|
17
times
|
I2C
CH0
|
I2C
CH0 Error in VERD.
|
18
times
|
DIGITAL
DEMOD
|
?
|
19
times
|
USB
|
USB
over current detected.
|
20
times
|
CI
|
CI
Error
|
21
times
|
VCT
|
No
DPI-I2C
|
22
times
|
MSP
|
MSP3410G
IC does not respond to I2C commands.
|
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:
To Bring Up Screen Test
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
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:
DISPLAY > CHANNEL 5 > VOLUME – POWER ON
Since the diagnostic results displayed on the
screen are not automatically cleared, always check the self-diagnostic screen
After you have completed the repairs, clear the result display to “0”.
Clearing the result display
To clear the result display to “0”, press button on the remote commander sequentially as shown below when the diagnostic screen is being displayed.
<Delection of Error Count and Error History>
Press “8” button , Press “-” button
<Delection of Panel Operation Time>
Press “7” button , Press “-” button
Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
After you have completed the repairs, clear the result display to “0”.
Clearing the result display
To clear the result display to “0”, press button on the remote commander sequentially as shown below when the diagnostic screen is being displayed.
<Delection of Error Count and Error History>
Press “8” button , Press “-” button
<Delection of Panel Operation Time>
Press “7” button , Press “-” button
Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
Detailed Description of LED blinking errors
POWER_DET (RED 2 times blink)
# This indicates DC_DET of Power Board 1).
# 12V line on Power Board 1).
# VERD micro (on BGC board) Pin6 detects POWER-DET and shuts down chassis power to standby status.
VERD micro Pin6 Normal condition: 1.3V - 2.5V
Error case: lower than 1.3V or higher than 2.5V
Replace Power Board .
46" : IP5 BOARD
52" : G5 BOARD
# This indicates DC_DET of Power Board 1).
# 12V line on Power Board 1).
# VERD micro (on BGC board) Pin6 detects POWER-DET and shuts down chassis power to standby status.
VERD micro Pin6 Normal condition: 1.3V - 2.5V
Error case: lower than 1.3V or higher than 2.5V
Replace Power Board .
46" : IP5 BOARD
52" : G5 BOARD
Back light Error (RED 6 times blink)
# This indicates panel power circuit error such as inverter.
# VERD micro (on BGC board) Pin40 detects PANEL-DET and shuts down chassis power to standby status.
VERD micro Pin40 Normal condition: High / Error case: Low (lower than 0.8V)
Replace Panel or Power/Inverter Board .
46" : IP5 BOARD
52" : G5 BOARD
# This indicates panel power circuit error such as inverter.
# VERD micro (on BGC board) Pin40 detects PANEL-DET and shuts down chassis power to standby status.
VERD micro Pin40 Normal condition: High / Error case: Low (lower than 0.8V)
Replace Panel or Power/Inverter Board .
46" : IP5 BOARD
52" : G5 BOARD
Temp Error (RED 7 times blink)
# This indicates high temperature inside chassis.
IC5507 on BGC board is monitoring temperature.
IC5507 is controlled by VERD micro.
# When it happens:
Check chassis environment.
Check around IC5507 and replace BGC board if temperature monitoring circuit has problem.
Check panel.
# This indicates high temperature inside chassis.
IC5507 on BGC board is monitoring temperature.
IC5507 is controlled by VERD micro.
# When it happens:
Check chassis environment.
Check around IC5507 and replace BGC board if temperature monitoring circuit has problem.
Check panel.
Audio Error (RED 8 times blink)
# This indicates Audio Error (Protection).
# It happens:
IC8200 on BGC board, Audio Amp detects over current, thermal shut down and/or low voltage of itself.
DC voltage detected for audio line.
VERD micro Pin5 Normal condition: High / Error case: Low
# Check UNREG15V at CN6401 Pin4 and Pin5 on BGC board . And F3401 on BGC board has 13V or not.
# Check above and replace BGC board.
# This indicates Audio Error (Protection).
# It happens:
IC8200 on BGC board, Audio Amp detects over current, thermal shut down and/or low voltage of itself.
DC voltage detected for audio line.
VERD micro Pin5 Normal condition: High / Error case: Low
# Check UNREG15V at CN6401 Pin4 and Pin5 on BGC board . And F3401 on BGC board has 13V or not.
# Check above and replace BGC board.
DEF Error (RED 10 times blink)
# This indicates DEF communication error.
# [ communication error ]
TVM micro (on BGC board) is communicating with EMMA3SL (on BGC board).
# Check above and replace BGC board .
NVM Error (RED 11 times blink)
# This indicates VERD NVM communication error.
# VERD micro (on BGC board) is communicating with NVM (on BGC board) .
# Check above and replace BGC board.
I2C Error (RED 12 times blink)
# This indicates I2C communication error.
# VCTP micro (on BGC board) is communicating with each devices (on BGC board).
# Check above and replace BGC board .
# This indicates DEF communication error.
# [ communication error ]
TVM micro (on BGC board) is communicating with EMMA3SL (on BGC board).
# Check above and replace BGC board .
NVM Error (RED 11 times blink)
# This indicates VERD NVM communication error.
# VERD micro (on BGC board) is communicating with NVM (on BGC board) .
# Check above and replace BGC board.
I2C Error (RED 12 times blink)
# This indicates I2C communication error.
# VCTP micro (on BGC board) is communicating with each devices (on BGC board).
# Check above and replace BGC board .
Balancer Error (RED 13 times blink)
# This indicates panel power circuit error such as inverter.
# VERD micro (on BGC board) Pin81 detects PANEL_DET and shuts down chassis power to Standby status.
VERD micro Pin40 Normal condition: High / Error case: Mid (0.85 - 2.65V)
# Replace Panel or Power/Inverter board.
46" : IP5 BOARD
52" : G5 BOARD
HDMI Error (RED 14 times blink)
# This indicates HDCP error.
# HDMI setting trouble matter on BGC board.
# Check above and replace BGC board.
Tuner Error (RED 15 times blink)
# This indicates Tuner error.
# VCTP and EMMA3SL micro (on BGC board) is communicating with Tuner (TU2200) on BGC board.
# Check above and replace BGC board.
# This indicates panel power circuit error such as inverter.
# VERD micro (on BGC board) Pin81 detects PANEL_DET and shuts down chassis power to Standby status.
VERD micro Pin40 Normal condition: High / Error case: Mid (0.85 - 2.65V)
# Replace Panel or Power/Inverter board.
46" : IP5 BOARD
52" : G5 BOARD
HDMI Error (RED 14 times blink)
# This indicates HDCP error.
# HDMI setting trouble matter on BGC board.
# Check above and replace BGC board.
Tuner Error (RED 15 times blink)
# This indicates Tuner error.
# VCTP and EMMA3SL micro (on BGC board) is communicating with Tuner (TU2200) on BGC board.
# Check above and replace BGC board.
I2C-CH1 Error (RED 16 times blink)
# This indicates I2C communication error.
# VERD micro (on BGC board) is communicating with Audio processor (IC3201) on BGC board.
# Check above and replace BGC board.
I2C-CH0 Error (RED 17 times blink)
# This indicates I2C communication error.
# VERD micro (on BGC board) is communicating with Real time clock (IC5502) on BGC board.
# Check above and replace BGC board.
Digital modulator Error (RED 18 times blink)
# This indicates Tuner error.
# EMMA3SL micro is communicating with inside of the Tuner (TU2200) on BGC board.
# Check above and replace BGC board.
# This indicates I2C communication error.
# VERD micro (on BGC board) is communicating with Audio processor (IC3201) on BGC board.
# Check above and replace BGC board.
I2C-CH0 Error (RED 17 times blink)
# This indicates I2C communication error.
# VERD micro (on BGC board) is communicating with Real time clock (IC5502) on BGC board.
# Check above and replace BGC board.
Digital modulator Error (RED 18 times blink)
# This indicates Tuner error.
# EMMA3SL micro is communicating with inside of the Tuner (TU2200) on BGC board.
# Check above and replace BGC board.
USB Error (RED 19 times blink)
# This indicates USB error.
# EMMA3SL micro found out USB over current detection on BGC board.
# Check above and replace BGC board.
VCTP Error (RED 21 times blink)
# This indicates VCTP error.
# VCTP micro (IC4701) does not work normaly.
# Check above and replace BGC board.
# This indicates USB error.
# EMMA3SL micro found out USB over current detection on BGC board.
# Check above and replace BGC board.
VCTP Error (RED 21 times blink)
# This indicates VCTP error.
# VCTP micro (IC4701) does not work normaly.
# Check above and replace BGC board.
