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Repair st-21sy1z i have work a sanyo tv i cannot solve the problem, the problem is it runs in stanby when i power it goes to 2-3 seconds then it back to stanby?

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Please check zener diode D661. I f this is short, your power can not initiate. Hope this one can help.

Posted on Dec 30, 2010

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My tv powers on displays the LG logo then makes a high pitched squeal sound from speakers and then flashes on screen (strobe light effect) does not display picture or sound.


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Dec 16, 2015 | LG 55LE5400 TV

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How to fix sanyo ST-21SY1Z won't turn on,the power run up to the transformer but no video and sound


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in this key phrase " my service table today " in the search box at the top right of the display window, to get gathered some pages which has the details of practical experiences to the author of that site.

Sep 07, 2015 | Sanyo Televison & Video

1 Answer

I have a sanyo tv turn on but screen goes off in a few seconds


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
https://www.youtube.com/watch?v=TR2iWN6b-LY
LCD TV Repair No Power Power Supply Common Symptoms Solutions How to...

Mar 15, 2015 | Sanyo Televison & Video

1 Answer

Sanyo tv model # st-21ys2 defective system ic


sir may ginagawa akong tv ang trouble nya. pag on mo ng tv after mga 2 to 3 .minutes nawawala na ang sound tpos pag pinatay mo at pag plug mayron uli sounds tpos nawawala uli sound buo ang i.c sanyo st 21ys2

Apr 15, 2013 | Televison & Video

1 Answer

Sony kdl-46w5100 shuts itself off then goes to stanby flashing 10 times


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

Feb 24, 2012 | Sony KDL Televison & Video

1 Answer

TV is on standby and turning it on goes green then a few seconds later the screen will qiuckly flash and go back to stanby so it will not turn on


indicating over current shut down. Depending on brand and model, power supply troubleshooting will aid you in repair.

Feb 18, 2011 | Televison & Video

1 Answer

Tv is automatically switching to stanby mode after a few seconds


Hello,

Power supply board have problems,just not dead yet.Replaced the power supply board,will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Hope this helpout......

Aug 03, 2010 | Sharp LC32D44EBK 32 in. LCD TV

1 Answer

No click.


it is in a stanby, wen power it runs to 2-3 seconds then it back to sanby

Jan 19, 2008 | Sanyo DS24425 24" TV

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