32 inch SONY LED television model 32R420B dead, red lights blinks 6 times now repaired

 I received a phone call from a friend who wanted his television checked by a technician; I scheduled him the appointment and he logged in our office the following day.

First I wanted to confirm the symptoms he has given me before opening the television in his presence.

I noted the screen was trying to display but shutdown immediately.

After 30 seconds I noted the red light will start blinking, I decided to count the number of blinks and noted they were 6 blinks, 3 second break, and then start again.

From my experience 6 times blinks in Sony TV are usually caused by backlights failure, therefore I had to open to confirm if indeed it is the backlight or something else.

Opening LED television is a delicate affair and therefore care must be taken not to break the screen/Panel and cause more damage to the machine.

Upon accessing the backlight, I did the testing using my LED television backlight tester and got the results above on the 3 strips.

From the figures above you can see V1 has reading way up from the other two strips, also note that only7/8 LEDs were on and therefore need replacements.

LED have a lifespan and therefore whenever I find one strip or one led bead faulty I always change complete set to avoid customer coming back again with the same problem. This is particularly true with Sony televisions.

I went to the shop, bought the backlight, replaced and here is the final result.