I have sony tv model KV-HA21M80 is having problem front stand by L.E.D is blinking 4 times and stopping. for that power start I.C has been changed. But still same problem. could you pls give any solution
These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
SOURCE: Sony wega model KV-32FS12
Probably a defective horizontal output transformer , also check the horizontal output transistor. Both parts available from tritronicsinc.com
SOURCE: TV SONY KV-HA21M80 BG2T
Thanks for reply and nice to know that you are in Algeria.
You need to pay attention on Screen Volts as wrong G2 (screen volts) can be cause of 4 times blinks as you already replaced vertical out put IC.
You can download service manual of KV-HA21M80 from HERE and it is free. Download all 3 parts of file and use WinRaR to unzip it. You will have complete manual in pdf format.
Good luck.
SOURCE: SONY TV MODEL KV-27FS120 stand by light
if it is continous blinking.........then you have a faulty jungle IC IC301,shorted to ground,IK video path is defected,............ hope this helped
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