Question about Symphonic ST420FF 20" TV

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Symphonic model wf2703

Was watching tv, movie the audio and video componet wires and tv cut off.  Tried to cut it back on and nothing happen!!!!

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Re: Symphonic model wf2703

Do you have "standby" power? In other words, does the set click or buzz when you try to power up using either the remote or the front panel?...accordianman

Posted on Oct 20, 2007

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1 Answer

Green tint

Check 3.58 MHz color oscillator,, little metal can near large ic,
Also check color output transistors or any loose connections in the output stage

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1 Answer


You're gonna wanna cycle the video input by pressing
1. Video Source
2. Input
3. TV/Video
4. Source

on your remote or your TV itself. Eventually you'll find it.

Dec 12, 2008 | Symphonic ST420FF 20" TV

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You have defective Vertical output IC. This parts need to replaced to back to normal.


Dec 04, 2008 | Symphonic ST420FF 20" TV

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No remote and cannot change to video mode!

Go to radio shack and get an universal remote control that has a tv/vcr input button. the one i got is a Phillips Universal to switch channels myself.

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1 Answer

No Picture or Sound

I dont think it's worth getting a repair man to come fix a Symphonic TV... honestly, they are problem prone... and It would cost much less to just buy a whole new one. I have a symphonic tv with no remote, and now, I cant switch into game mode! It's like they designed their tv's to be crappy!

Jun 07, 2008 | Symphonic ST419E TV

1 Answer

Sanyo TV


If I understand your posting/description right, you have:
1, a Sanyo TV with only 1 video input;
2. you have a DVD player with only video output; and
3. you have a VCR (which I will assume to be with both video input and output).

Your query, if I may clarify, is how to hook them up so that you need not connect/disconnect any video cable when you want to switch video source from either DVD or VCR.

If that is what you want, then connect:
a. audio/video OUT of your DVD to audio/video IN of the VCR;
b. audio/video OUT of your VCR to audio/video IN of the TV.

The above described connection would allow you to:
i. watch DVD movies on your TV (your VCR must be powered ON and set to Video INput, your TV must be powered ON & set to Video INput);
ii. watch tape movies from your VCR without disconnecting/connecting cables.

Additionally, this arrangement would allow you to record DVD movies in your VCR. Further, connecting your cable/aerial to the RF INput of your VCR would allow you to do the same with a TV/Cable program.

Incidentally, if one of your units (TV, VCR, DVD) would only have a single audio input, it is still possible since some models uses the white audio RCA connector as either left or mono, the red is right. You can also use a 2 female RCA to 1 RCA male adapter as shown below to joint the red/white audio.


Hope this be of some idea/help. Pls post back how things turned out or should you require additional information.

Good luck and kind regards.

Nov 19, 2007 | Sanyo DS32224 TV

1 Answer

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Is there another input you can try?

Mar 21, 2007 | Symphonic ST427FF TV

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That problem might be on the remote of display settings on video display. There is one button that will turn that off. Try Display Settings

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