Sony kdl-55ex720 5red blink - Sony BRAVIA KDL-52W3000 52 in. LCD Television

Refer to Sony KDL 55EX500 Troubleshooting Manual Protection Mode Symptom...
5X Blink - TCON & HFR Failure
The 5X blink protection mode indicates a communications error between the TCON/HFR board and the MT5388 microprocessor on the A-Board.
First replace the TCON/HFR Board if the 5X protection mode blink pattern occurs. If the TCON/HFR Board does not repair the problem then replace the A-Board.

see schematics in Sony KDL 55EX500 Troubleshooting Manual Page 23

Hi Tradeboyle,
Please search 'Sony Bravia KDL-40S4100 40 in five blinks' on google and you will get several videos containing the solution of your problem.
Good luck.

Sony Bravia TV kdl- red blinking led light error codes ...

? 10:28
https://www.youtube.com/watch?v=0KGysXbxnaU
Mar 28, 2015 - Uploaded by Tampatec
Sony Bravia LCD TV KDL models red blinking led light error codes & possible ... with perfect picture, no warning signs and it just shuts off. is it that quick? ... with the following problem: I connect the power grid lights Standby red light. ... the title before deleting, it is very fast after that flashes Standby 6 times.Missing: 46w3000 ‎30

The standby light on my Sony BRAVIA 40" LCD HDTV KDL-40V2500 is blinking continuously (there is no flashing sequence, just blinks five taim balenk

Five blinks denotes an IRK error. To detect damaged components and to troubleshoot this error, you must have sound in electronics.

Bus clock and/or data lines low at power on. 6 blinks of standby light denotes this. Actually, it should be a motherboard problem. Your TV need a thorough checkup before confirmation. If you wish to get more details about the blinking codes to Sony TVs, check this link.

While looking found this:

Found this service bulletin for sony KLD
KLV40EX600 not austalia model but think KDL will be similar

Model No: KDL-32EX400 KDL-40EX400 KDL-32EX500
KDL-40EX500 KDL-46EX500 KDL-55EX500
KDL-32EX600 KDL-40EX600 KDL-32EX700
KDL-40EX700 KDL-46EX700 KDL-52EX700
KDL-60EX700 KDL-40HX700 KDL-46HX700
KDL-55HX700 KDL-40NX700 KDL-46NX700
KDL-52NX800 KDL-60NX800


SUBJECT: Counter measure for Intermittently 5 times standby LED blinking
SYMPTOM: Customer may report that intermittently after AC OFF/ ON (or Deep Standby/ ON), TV will shut down with LED blinking 5 times. If set is placed in Standby, then On, symptom will re occur. If AC is removed, set will work normally when AC restored
CAUSE: Timing mismatch of I2C communication causes interrupt signal inside TV. This causes TV to shut down with error 'Standby led flashes 5 times'

SOLUTION: This is a user correctable issue -
Where possible, please refer customer to Sony Website -(or ) and search for relevant model to download correct update. If the unit is in Workshop, please perform update as per Instructions.

Click the link below :----http://wikisolutions.blogspot.in/2012/02/get-free-answers.html

I have a 2008 Sony Bravia KDL-46W4100 that when I turn it on the red light blinks 14 times.
Please help me troubleshoot this problem so I can order the correct part to fix this television

sony kdl-40w3000 does not turn on. Standby light keep blinking. What is the problem