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ROSHAN HH-21SCP TELEVISION.NO PICTURE OR SOUND

When power button pressed.Power led stays Red.

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5 Suggested Answers

dsacco86
  • 1077 Answers

SOURCE: my flat screen tv does not have a picture or

I've had the same problem with a 32" model LC320EM82S. All the Emerson TV ( no matter what size ) are having the same issue.
I'm sure with your TV, the green light is blinking before the TV automatically turns OFF. Basically, the TV is trying to power up the screen and has failed. Protection mode turns the TV OFF to prevent other parts from being damaged inside.
My solution for fixing my TV was replacing one bad inverter transformer of six on the Backlight Inverter/Power Board. Here is what my board looks like: 767c946.jpg
You can see the six inverter transformer on the bottom of the board. It's what supplies power to the screen. Your board may look similar. You can sometimes find a whole replacement board over the internet for a good price. Shopjimmy.com is a good place to start. Just start searching by your TV model number.
If you have some electronic experience, you can repair the board itself by finding a Service Manual over the internet for less than $20. It will have all the part numbers, schematics, and diagrams you need. I would investigate the inverter transformer for your problem.
I hope I helped you out with your problem.

Posted on Sep 04, 2009

  • 27 Answers

SOURCE: Television Not Powering Up Intermittently

Hi Check the standby power supplies, then the run supplies, then the h-driver circuit, then the H.O.T and flyback circuit. And in general look for bad transistors, diodes, capacitors, resistors, faulty solder connections and etc. BE ADVICE!!! if you don't have any repair experience and electronics knowledge leave it. Take it to an experienced tech or a service shop. Good luck

Posted on Mar 26, 2006

Benimur
  • 6966 Answers

SOURCE: Sony KDL-40S20L1 Flashing Standby Led, No pic, No Sound

Hi, If all else fails, try do a hard reset. You can verify from your manual, but in some units, this is merely unplugging the unit from mains for a couple of hours. Try again, if it still shows error codes (blinking lights) you probably have to seek the services of a qualified professional. Hope this be of some help/idea. Good luck and kind regards.

Posted on Aug 26, 2007

  • 1 Answer

SOURCE: power led blinks but no picture or sound

Had the same problem myself. Took some doing but I managed to find a service bulletin that I downloaded. The problem is with the siene module and all you need to do is unplug connector JP63A from the main board and your TV will work again.
Take the back off the TV (there are a lot of screws) and look on the left hand side of the main circuit board that is mounted in the center of the TV. You will see a small white connector that is labelled JP63A, simply unplug it. Plug the TV back in and let it reboot. That's it, should be able to watch immediately.

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: hdtv won't turn on

have westinghouse 52" TX-52F480S won't turn on???

Posted on Apr 09, 2009

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I have Roshan tv,my remote is not working,fell,n,damage.model Hh 21scp


1) change the battery with the same type, and full charged
2) clean contacts battery with contacts cleaner
3) resolder the wires connector battery
4) retigh the springs contacts battery with pliers for GOOD contact
5) open the r. control, and clean the keypads switch, for dirty, dust, bad contacts or open contacts test with VOM.Rmember they send clean infrared beam from Syscon Micro trans to the receiver
6) Otherwise you must go to the repair shop TV for fix it
God bless you

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1 Answer

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2 Answers

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you have the ATC311 chassis. do this proceedure and you can track down where the problem is. let me know if you need more assistance. i can also post a link where you can get the training manual at a cheap cost emailed to you if you would like a copy.
5. Apply AC power and press power button.
6. If LED turns on and then off, disconnect J11501 (Audio CBA) and press power
button again. If power LED comes on and stays on suspect Audio CBA. If LED
still flashes or does not light go to step 7.
7. Disconnect J26903 (AV IN CBA) and press power button again. If power LED
comes on and stays on suspect AV IN CBA. If LED still flashes or does not
light go to next step.
8. Disconnect J19500 (Convergence CBA) and press power button again. If
power LED comes on and stays on troubleshoot the Convergence CBA. If
LED still flashes or does not light go to next step.

9. Disconnect J14801 (Deflection CBA) and press power button again. If power
LED comes on and stays on suspect Deflection CBA. If LED still flashes or
does not light suspect DM2 module.

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2 Answers

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