Thursday, February 11, 2016

SONY KLV-40Z410A - KLV-46Z410A - Service mode - LED Blinking error codes and causes – Factory reset – LCD Television repair and service

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
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.
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.
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.
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 .
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
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
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.