I replaced the main board in my sony Kdl-32S300. When turn on power, the back light flashes 3 times then goes into standby mode after which the standby light flashes 12 times in sequence. What could be the possibles causes.

6 red flashes- backlight issue, bad main board, or power board or inverter boards- check standby volts on power board. "backlight on" volts should be 3-5v from main logic board then 24v to inverter


Have this from a youtube link find BUT
Better is to look first also on bad leaking or bulged capacitors thats better to replace in the bad components to get a repair because active components died on bad capacitors but after a while because on the build-in protection circuit by faults like deformed or leaking capacitors and even several fuse resistors then after replace a complete board again after a while you will may be get the same kind of problems again, take If you find some or much bad capacitors replacements 10 volts dc higher . begin with control on the power supply first of all.



Sony Bravia TV kdl red blinking led light error codes solutions Sony KDL 40XBR4 KDL 40XBR5 KDL 46XBR4 KDL 46XBR5 Service Manual

saya lupa password pokercc saya boss,,tks

14 blinks to Sony Brand LCDs indicates a 'Backend error'. It means that, the main board to this TV should be checked for fault. In most cases the main board might need replacement, and a software update too. If you wish to know more details about this blinking code, check this link. It has details of blinking codes to several brands of TVs including Sony. Actually the work is a skilled one, need experience.

This might be your main board on the tv. If the tv is still under warranty I would bring it back in for repair.

I have the same tv with the same problem, replace the power supply boards and still had same problem, called in a tv repair man and I was told I have a main board problem bu board Watch Dog Timer used to track micro processors, led flashing 10 times cost around $425 parts and service call

Look for Bad capacitors they will be swollen,vented or puffed up on Top this is the most common problemwith this set. 220uf 10v 330uf 10v 1000uf 16v 3300uf 10v

Replaced circuit board under warranty.