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Fix Ya Switching to Video input not working.

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It should be due to some fault with the digital input sector IC inside it. This is not a user repairable fault. Contact any technician.

Posted on May 08, 2013

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Posted on Jan 02, 2017

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My 27" Sanyo DS27800 when


U using the RCA AV cable Y,R,W plug into those tv video input holes wright?Tries another RCA Y,R,W AV cable,see if it work?U have tools like a soldering iron,a roll of solders,also can u do basic soldering?Tries take some alchahol clean the Yellow input hole and take the tv aparts resolders it connections joints,now the video out it should work again,if not yellow input hole might be shorted require replacing.

Jan 27, 2011 | Sanyo DS27800 27" TV

1 Answer

No Picture. But on the screen it shows the channel number and the menu. I have a ps2 and dvd/vcr sound works fine.


We know that high voltage and raster are okay. Suspected defective circuits are somewhere in the video drive chain or power supply system, so
the problem is definitely not a quick fix. Although the problem could be bad connections and weak filters which should be checked first.

After checking for quick fixes, you need to check video drive circuits which entails checking the video output wave form from the luminance processor. If video is not present check composite video coming into luminance processor. If input ok check voltages going to processor to determine if problem is power supply or processor. If input is not ok to luminance processor trace back to I/O port where the video switching processor is located. Check for input to input I/O processor. If good check I/O processor output, and if bad check voltages going to processor and switching data port to determine if processor, power supply, or systems control circuits are defective. If input to I/O processor is bad then trace signal back to where it is good and repair applicable circuit[s].

Apr 27, 2009 | Proscan PS36109 36" TV

1 Answer

I can't get the channel select to go to av input or video input


A universal remote in most cases can not switch this TV into the AV mode...you can but a orignal replacment remote for your TV At www.remotes.com and then you can use all the functions again!
That will fix ya!
Please rate my response!
Thank You!

Jan 17, 2009 | RCA 32V430T 32" TV

1 Answer

Toshiba 50HP66 Plasma TV


Found that video 1 and video 2 switching does not work. The switching IC was HOT!. Then found a third video input works but no sound. Hooked -up sound output of DVD player to amplified loudspkr and it works, I hate to throw away a 2 year-old plasma TV when TV and cable still works.
Thanks for the offer anyway.

Mike

Oct 12, 2008 | Toshiba 50HP66 50 in. Plasma Television

1 Answer

Yamaha HTR-5240 Receiver channels are mixed up


Sounds like your input switching IC is bad. THis is a shop job,major solder work and most likely a parts order. All the inputs tie into 1 intergrated circuit"ic" and the microprocessor see the signals and switches the output on this IC when you change inputs and when this IC goes bad you can have an outward symptom of not switching,only 1 input works or 2 or more inputs on at the same time. If this receiver cost several hundred dollars it's worth repair if less expensive unit you may want to look around for a new unit

Mar 07, 2008 | Yamaha HTR-5240 Receiver

1 Answer

TV image goes off when VCR power turned on


The vcr is connected in between the antenna (or cable) and the tv, and when it turns on its tuner takes control of the signal. Either:
1) press the VCR/TV button on the VCR to let the signal go stright thru
2) Tune the VCR to the channel you want to watch and set the TV to the VCR's input.
3) If you use a coax cable connection to the TV, try switching the VCR to the other channel (3 or 4, switch in the back)
4) Change the TV connection to RCA cables on the A/V inputs.
Hope Ya Fix It!

Jan 13, 2008 | Televison & Video

1 Answer

Sanyo DP 37647


What input did you connect the satalite to? Probably one of the 'video' inputs I'm guessing, which means you have to select that video source using the 'INPUT' button on your remote. (Some makers use different names but you get the idea)
Hope Ya Fix it!

Dec 29, 2007 | Sanyo DS27510 27" TV

2 Answers

Denon AVR 1803


Hello, I think that you've got a problem in the relay circutry or a logic problem. tell ya what I ve got the service manual and schematic for the reciever. the engineers at denon where ahead of there time when this company started. they designed the equipment around what they wanted the specs to be for signal to noise and discrete audio channels. each of the sound channels from the component and composite inputs is given its own bus and amplifier channels. these paths are also common to the reciever/tuner outputs. one question though you mentioned that the composite/component video paths are not switching from the input to the output youve designated, and that the monitor checks good. do you have another video source,either digital or analog that you can input throgh another channel to see if it is infact a switching problem. try that and let me know. I can give you help with the switching circutry form the schematic if need be. believe me I know It took me about a week to track down the service schematic for this unit. Denon doesn't like giving out info unless you are an authorized repair center.

Dec 17, 2007 | Denon AVR-1803 Receiver

1 Answer

RCA F25432 25in


If you ONLY have an Antenna or Cable input, you are going to need a Video & Audio to RF converter.. This connects to ya DVD Video & Sound OUT, and then connects to ya sets Antenna IN. This device converts ya Video & Audio signal to Radio Frequency Signal that can be "Received" by ya set. (Basically a low power TV transmitter) This is the only way I know of, if ya haven't got any other Inputs into a set.

Aug 15, 2007 | RCA F25432 25" TV

1 Answer

Video input problems


If its a brand new set and never worked from the get go I bet ya 10 to 1 that theres a plug or clip lose in the set someware. Hope ya got a warrantee as you should have unless you bought if off A corner someware. Call the repair service # thats in the owners manual to get it fixed asap. Good Luck

May 27, 2006 | Toshiba 46HM95 46" HDTV

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