Category: LCD Television Repair and Service
Contents of this article
- How to access service mode
- Factory reset Procedure
- LED Blinking and possible causes
SONY KLV-40Z410A - KLV-46Z410A
SERVICE MODE
How to access service mode
Use the buttons on the Remote Commander to access the service menu items and adjust the data values.
1. Access Service Mode.
Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 > Volume + > TV POWER
Use the buttons on the Remote Commander to access the service menu items and adjust the data values.
1. Access Service Mode.
Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 > Volume + > TV POWER
The screen displays the fi rst category in
the selected service menu.
NOTE: If the Service Menu display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display.
2. To change the category, press 2 or 5 on the Remote Commander.
Note: Pressing 2 or 5 only changes the categories within the service menu displayed.
To change a category on one of the other service menus, press the JUMP button until the correct service menu is displayed.
3. To change the adjustment item, press 1 or 4 on the Remote Commander.
4. To exit service mode, turn the power off.
NOTE: If the Service Menu display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display.
2. To change the category, press 2 or 5 on the Remote Commander.
Note: Pressing 2 or 5 only changes the categories within the service menu displayed.
To change a category on one of the other service menus, press the JUMP button until the correct service menu is displayed.
3. To change the adjustment item, press 1 or 4 on the Remote Commander.
4. To exit service mode, turn the power off.
RESETTING TO FACTORY DEFAULTS
Use the following instructions to restore the User Controls and Channel Memory settings to the preset factory conditions.
1. While holding down the UP ARROW on the Remote Commander, press the
POWER button on the Front Panel of the set.
The set restarts and displays the initial setup screen. This may take several minutes.
Use the following instructions to restore the User Controls and Channel Memory settings to the preset factory conditions.
1. While holding down the UP ARROW on the Remote Commander, press the
POWER button on the Front Panel of the set.
The set restarts and displays the initial setup screen. This may take several minutes.
Diagnostic Test Indicators
When an error occurs, the STANDBY LED indicator will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the indicator will identify the first of the problem areas.
When an error occurs, the STANDBY LED indicator will flash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the indicator will identify the first of the problem areas.
LED INDICATORS
LED
|
LED Type
|
Description
|
POWER
LED
|
Green
LED
|
Lights up in green when the TV set is turned
on.
|
STANDBY
LED
|
Red
LED
|
If
LED blinks continuously, this may indicate
that the TV needs servicing. * Lights up in red when TV is in PC standby mode. |
PIC
OFF/
TIMER LED |
Green
or Orange
LED |
Lights
up in green when Picture Off is activated.
Lights
up in orange when the timer is set.
When timer is set, the LED remains lit even when the TV is turned off. |
LED BLINKING CODES AND CAUSES
Number
of times STANDBY
lamp flashes
|
Diagnostic
Item
Description
|
Possible Problem Location
|
2
times
|
Main
Power
|
Power
Supply
|
3
times
|
DC
Alert
|
Main
Board
Power
Supply
|
5
times
|
Panel
Alert
|
LCD
Panel
|
6
times
|
Backlight
|
Power
Supply
|
7
times
|
Temp
|
Main
Board
|
8
times
|
SP
Prot
|
Main
Board
|
11
times
|
Trident
IC
|
Main
Board
|
12
times
|
TCON
Error
|
LCD
Panel
|
13
times
|
Backlight
Balance
|
Power
Supply
(Balancer
Boards) Inverter Boards
|
14
times
|
HFR
Error
|
LCD
Panel
LCD
Panel
|
Viewing the Self Check Diagnostic List
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 > Volume - > TV POWER .
2. Press the following buttons on the Remote Commander within a second of each other:
DISPLAY > Channel 5 > Volume - > TV POWER .
Results for all of the following diagnostic
items are displayed on screen. No error has occurred if the screen displays a
“0”.
NOTE: If the Self Check display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display
NOTE: If the Self Check display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display
3. Press the Channel 1 button on the Remote
Commander to go to Page 2 of the Self Check list.
4. Press the Channel 4 button on the Remote
Commander to go back to Page 1 of the Self Check list.
5. To exit Self Check display, turn the power off. Clearing the Self Check Diagnostic List
1. In Service Mode, press the Channel 8 Channel 0
5. To exit Self Check display, turn the power off. Clearing the Self Check Diagnostic List
1. In Service Mode, press the Channel 8 Channel 0
SAFETY CHECK
1. Check the area of your repair for
unsoldered or poorly soldered connections. Check the entire board surface for
solder splashes and bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.
6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage.
2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.
6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage.
