SONY KDL-40X4500 - KDL-46X4500 - KDL-55X4500
SERVICE MODE TROUBLESHOOTING AND POWER SUPPLY CIRCUIT
SELF DIAGNOSTIC SOFTWARE
The identification of errors within the EG1H
chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to
respond to IIC. In the event of one of these situations arising the software
will first try to release the bus if busy (Failure to do so will report with a
continuous flashing LED) and then communicate with each device in turn to
establish if a device is faulty. If a device is found to be faulty the relevant
device number will be displayed through the LED (Series of flashes which must
be counted).
LED BLINKING CODES
|
Number of LED Flashes
|
Display
|
Error Description
|
|
02
|
POW
ERR1
|
Power
error (Watching 12v rail).
|
|
05
|
T_CON
|
T-CON
error.
|
|
06
|
BACKLITE
|
[CCFL]
Panel inverter error.
[LED] GL board error. |
|
07
|
PANEL
TEMP
|
Panel
temperature abnormal detection.
|
|
08
|
AUD_PROT
|
Audio
abnormal detection.
|
|
09
|
FAN_ERR
|
Fan
error
|
|
10
|
DTT ERR
|
EMMA
WDT - Not detected (Reboot operation).
|
|
13
|
BALANCER
|
[CCFL]
Panel balancer error.
[LED-BL] SPI error(Babylon communication error). |
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:
ON SCREEN DISPLAY > DIGIT 5 > VOLUME DOWN > POWER ON
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.
To clear the result display to “0”, press button on the remote commander sequentially as shown below when the diagnostic screen is being displayed.
Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
DISASSEMBLING THE BACK COVER
Remove the rear cover fixing screws indicated
and pull the rear cover gently backwards away from the back of the TV set.
How to
enter Service Mode
Service adjustments to this model can be
performed using the supplied remote Commander RM-ED012
1. Turn on the power to the TV set and enter
into the stand-by mode.
2. Press the following sequence of buttons on the Remote Commander
2. Press the following sequence of buttons on the Remote Commander
ON SCREEN DISPLAY > DIGIT 5 > VOLUME UP > POWER ON
3. The TVM Service Menu appears on the screen
Note :
# After carrying out the service adjustments, to prevent the customer accessing the ‘Service Menu’ switch the TV set OFF and then ON.
# After carrying out the service adjustments, to prevent the customer accessing the ‘Service Menu’ switch the TV set OFF and then ON.
Changing
TVM Data Settings
1. Press “2 / 5” on the remote commander to
select (up / down) category.
2. Press “1 / 4” on the remote commander to select (up / down) item.
3. Press “3 / 6” on the remote commander to select (up / down) data .
2. Press “1 / 4” on the remote commander to select (up / down) item.
3. Press “3 / 6” on the remote commander to select (up / down) data .
Writing
TVM Data
1. Press “Mute” on the remote commander. The
word “SERVICE” changes to “WRITE” .
2. Press “0” on the remote commander.
3. After approximately 1 minute, “WRITE” changes to “SERVICE”. This indicates writing is complete.
2. Press “0” on the remote commander.
3. After approximately 1 minute, “WRITE” changes to “SERVICE”. This indicates writing is complete.
Entering
BEM Service Menu
1. Press “Previous channel ” BUTTON on the
remote commander and the BEM menu appears
Changing
BEM Data Settings
1. Press “2 / 5” on the remote commander to
select (up / down) category .
2. Press “1 / 4” on the remote commander to select (up / down) item .
3. Press “3 / 6” on the remote commander to select (up / down)
2. Press “1 / 4” on the remote commander to select (up / down) item .
3. Press “3 / 6” on the remote commander to select (up / down)
Writing
BEM Data
1. Press “Mute” on the remote commander. The
word “SERVICE” in green changes to “WRITE” (See Pic.6).
2. Press “0” on the remote commander. The word “WRITE” in green changes to red. This indicates writing is in progress.
3. When “WRITE” changes to green “SERVICE”. This indicates writing is complete
2. Press “0” on the remote commander. The word “WRITE” in green changes to red. This indicates writing is in progress.
3. When “WRITE” changes to green “SERVICE”. This indicates writing is complete
Trouble
Shooting
Set Reboots
When the TV Set tries to restart please check
the following:-
1. FBA board.
- CN2800 12v power and harness to G6.
- F4100, F4101, F4102, F5400, F7800, F7801 for conduction .
2. If no problems are found with the power rail replace the FBA board
1. FBA board.
- CN2800 12v power and harness to G6.
- F4100, F4101, F4102, F5400, F7800, F7801 for conduction .
2. If no problems are found with the power rail replace the FBA board
Power Error
When the TV Set indicates a power error please
check the following:-
1. Check the TV micro pin 79 and 138 on the AE board.
2. Check 12V at CN1000 and F1001 on the AE board.
3. Check the G6 board
1. Check the TV micro pin 79 and 138 on the AE board.
2. Check 12V at CN1000 and F1001 on the AE board.
3. Check the G6 board
T-Con Error
When the TV Set has a T-Con error please check
the following:-
1. Check the BE micro pin 128 on the FBA board.
2. Replace the panel module
1. Check the BE micro pin 128 on the FBA board.
2. Replace the panel module
Back Light Error
When the TV Set temperature is high please
check the following:-
1. Check IC1000 on the AE board and replace the AE board if the temperature monitoring circuit has a problem.
2. Check the panel.
1. Check IC1000 on the AE board and replace the AE board if the temperature monitoring circuit has a problem.
2. Check the panel.
Audio Error
When the TV Set has an audio error please
check the following:-
1. Check IC1800 on AE board. The audio amp detects over current, thermal shutdown and/or low voltage.
2. Check voltage at CN1002 pin 20 on the AE board.
3. Replace the AE board
1. Check IC1800 on AE board. The audio amp detects over current, thermal shutdown and/or low voltage.
2. Check voltage at CN1002 pin 20 on the AE board.
3. Replace the AE board
Fan Error
When the TV Set has a fan error please check
the following:-
1. Check the BE micro pin 154 on the FBA board.
2. Check fan harness connection.
3. Check the voltage on CN1301 the AE board.
4. Replace the fan
1. Check the BE micro pin 154 on the FBA board.
2. Check fan harness connection.
3. Check the voltage on CN1301 the AE board.
4. Replace the fan
Balancer
Error
When the TV Set has a Balancer board error
please check the following:-
1. Check the BE micro pin 163 on the FBA board.
2. Check harness connection CN6700 on the D4 board and CN104 on tne balancer board of panel module (40 inches).
3. Check harness connection CN9700, CN9701 on the CB1 board and panel module (46/55 inches).
4. Replace the panel module.
5. Replace CB1 board (46/55 inches).
1. Check the BE micro pin 163 on the FBA board.
2. Check harness connection CN6700 on the D4 board and CN104 on tne balancer board of panel module (40 inches).
3. Check harness connection CN9700, CN9701 on the CB1 board and panel module (46/55 inches).
4. Replace the panel module.
5. Replace CB1 board (46/55 inches).
CB1
Board Replacement (46/55 inches)
When replacing the CB1 board adjustment data
held in the backlight NVM of the panel can be copied to the CB1 board. Data
held on the CB1 board can also be copied to the panel in the case of panel replacement
1. Enter Service Mode .
2. Go in to BEM Service Mode and go to ‘DATA_COPY’ .
2. Go in to BEM Service Mode and go to ‘DATA_COPY’ .
3. Change ‘COPY_SW1’ to 1 and wait until the
message “ COPIED NVM TO FLASH” appears.
At this point make sure the TV set is not powered off until this message appears
At this point make sure the TV set is not powered off until this message appears
4. Software has now been copied. Switch AC off
and back on again to confirm
POWER SUPPLY CIRCUIT
CLICK ON THE IMAGES TO ZOOM IN
