Standby light just flashes when power is turned on
Was watching tv when it turned black, tried to turn it back on and all it does is the standby light just flashes. I thought it was hot so I let it cool down and tried again, but still nothing, light just keeps flashing.
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May 8, 2014 - Uploaded by ShopJimmy.com
TV Repair Help for a TV With a Black No Image on the Screen ...I Have A Sanyo TV I Can Hear But Black Screen Im 14 And Dont Know What To Do ! .... power button the power light goes from red to green, the screen flashes on then goes black ....Troubleshooting LCD Backlight Failure Samsung LNT-4066 ...
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/
Ur power board have dead capacitors.U Know how to solders?Take the tv aparts,check these capacitors in the power board for dead capcitors like puff up or burst open.Replaced these capacitors to get power back.Or buy and replaced the whole reburbish power board at Shopjimmy.com,Ebay.com.
The POWER/STANDBY (red) indicator flashes three times If your power/standby indicator is flashing in a pattern of three flashes, this may indicates that the lamp cover is not attached securely. Follow the directions in the Operating Manual under changing your lamp that related to closing and securing the Lamp Cover. Ensure that the Lamp Cover Door is securely fastened by tightening each screw.
The POWER/STANDBY (red) indicator flashes continously If your power/standby indicator is flashing continuously, and the lamp cover has been secured, your TV may be in need of service.
The POWER/STANDBY indicator is lit up green (not flashing) A sustained green light indicates your TV is on.
The POWER/STANDBY indicator is lit up red (not flashing) A sustained red light from your power/standby indicator simply indicates that your TV is in standby mode. This shows you that your TV is ready to be turned on with the remote.
Is it the power light and not the lamp light? If the lamp light is flashing then replace the lamp.
Since the TV is still receiving power, the problem is going to be with the TV's mainboard. After you unplugged the TV and plugged it back in, you said the power light went out again, so I assume the standby light wasn't flashing again? The flashing standby light is indicating an error code so my suggestion is to contact Sony for service options regardless if there is a warranty or not because service is the only solution to this situation. Don't forget to provide them the error code or 4 flashes repeating.
Audio Protect (7 Flash): When DC voltage is detected at the speaker or
woofer outputs, IC3604/pin128 (TV-micro) goes low and IC3604 turns off
the main power (AC relay turns OFF).
1) Main cause of defective will be located on the KD-board
2) Confi rm KD-board is securely seated on the G2-board
3) Replace KD-board