SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to fl ash. The number
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY LED fl ash 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 fl ash 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 fi rst 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 .
Diagnostic Item
Description
Number of times Standby
LED blinks Possible Location
Main Power Error 2 G2HE/GD2 (Power) Board
Audio Error 3 A (Main) Board
Balancer 4
LCD Panel
Inverter Board (ETC-Inverter MT Board) for 32" & 40" Models
TCON Error
5
LCD Panel
TCON Control MT Board
HFR Error 5 LCD Panel
Backlight Error 6
LCD Panel
Inverter Board (ETC-Inverter MT Board) for 32" & 40" Models
Temperature Error 7 A (Main) Board
This should help you narrow it down. I am also attaching the service manual for you. https://files.acrobat.com/a/preview/16a56e45-a439-48bc-8770-21638f2bab68
If you need further help, reach me via phone at https://www.6ya.com/expert/steven_a67ead41eb5fc62a
Testimonial: "So you think it's a T-Con board? If I replace the T-con board and still get the same 5 blinking red lights then it's the LCD? Probably going to the recycling center then?"
You are correct but 9 times out of 10 the LCD is not bad. The only times I have ever had a bad LCD was due to physical damage of the LCD itself, ie a cracked screen.
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Hi mstevens376,
Power on the unit in the dark room then shine with the flashlight directly in
the screen, you will barely see the images. This is because your backlight is
not functioning. The following reason is the caused.
1. Power supply - missing
B+(supply voltage) coming from this board feeding the inverter board. This is
caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible
resistor.
2. Inverter board - even
the B+ is good from the power supply, if the fuse, driver transistor, driver transformer
is faulty no output to the backlight resulting to black picture.
3. Busted backlight - even
inverter board is good but if this is busted resulting to black picture also.
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would
advice you to look for an experienced
technician to isolate the
problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
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Usually answered in minutes!
I've got 5 blinking red lights then it rests and cycle through again.
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