Question about JVC AV-48WP30 48" Rear Projection Television

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Problem with the video inputs....

If you turn off the tv, you have to flick between the inputs (sometimes for up to an hour) to get picture back. only when it is powered off other then, that if u leave it on its fine. when its doing that the screen is kinda greenish and jumpy and sometimes u get colored bars.

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  • 106 Answers

Your problem is the MICOM board. It is a standup board the plugs into the main board. It is basically the "brains" of the tv. It does all of your video processing,video switching, etc. It is also a very expensive board (around $400).

Posted on Nov 30, 2008

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MY PICTURE IS GREAT,BUT NO SOUND. WHAT CAN I DO TO FIX IT?


Make sure TV is not muted.Make sure the TV is not set to SAP (secondary audio protocol)Make sure TV input is correct (someone may have accidentally pressed the "aux" input button or similar causing the TV to use an input with no sound going to it)Make sure there is not a pair of headphones connected to the TV audio out jack on the side or front of your TV.Check all of the cables that are connected into the back of your TV. (it is possible the TV was moved slightly and a cable has become disconnected or loose)If you have a receiver or surround sound connected to your TV, turn it on and see if you get sound coming from the external speakers.Turn off the TV, cable box, and anything else connected to the TV. Sometimes turning everything off and then back on can fix the problem.If using an "S" video cable into an input on the back of your TV, these cables carry no sound, just video, so make sure you connect an audio cable too.Hook up an external device to the "TV audio out" input. This will be the test to see if it is a TV circuit board malfunction or the speakers are faulty in your TV.If you are connected to a satellite box, use the included remote and go into the "menu". Check to make sure sound settings are set correctly.
Read More: http://removeandreplace.com/2013/11/14/10-ways-fix-tv-picture-sound/#ixzz3lTeW6isH

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1 Answer

Input 6 - HD Input - Green Screen. Audio Only. No picture.


Hi there,
I am having a similar problem with the inputs. I have a cable box plugged in to cable antenna, DVD to video 6 using HDMI, Mac computer plugged in to video 7 - using HDMI (TV does not recognize this) and then Nintendo Wii hooked up to Video 1. My problem is that Sony only realizes 2 additional components like the video 1 (wii) and DVD on video 6, it does not play the other components. I have to niw manually switch the cables to have them work...

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1 Answer

Does not pick up cable satellite signal


Do you have the satelite hooked threu the regular cable input? If so hook it thru one of the video inputs instead; composite video or component video. the picture and sound will be better and you will be by-passing the problem area of your Tv ( the tuner).

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DLP TV starts to loose picture after 1 - 1/2 hours of use


This tv has a 3 board video path. Analog main pcb --->Digital main pcb --->DMD pcb. see which inputs have the problem to narrow it down. if only some inputs, suspect analog board. if everything flickers(all inputs and menu), suspect the dmd or engine. you can see the lamp shine out the back. if the lamp is flickering, suspect lamp or ballast.

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1 Answer

Sony projection tv HELP!!


Hi,

Initially, let us try a simple one; flick/snap with your finger nails any and all of the buttons on the front control panel of the TV unit. The ides is to unstuck any of the buttons. They maybe in a pressed position. Incidentally, any sudden change in the weather/temperature? Any rain lately? Condensation, dampness, humidity maybe playing with the rubber pads of the controls or with the electronics inside.

Alternately, you can try the hard reset; unplug from the mains for an extended period of time, say an hour or more.

Should none be corrective, pls post back the exact model number.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

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1 Answer

My 50SBX70B flicks than lost the power


Symptom: NO HOR SYNC
Cause: DEFECTIVE I008
Symptom: No Horizontal Sync. When PinP is called up, main picture may lock up for a 8 moment, then it goes back out of sync.
Cause: I008 defective (Sync Switch)

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I also had a same one but had the same problem. Thinking of throwing it away!

Dec 25, 2007 | Televison & Video

2 Answers

My TV pictures turns black afetr a few hours but I still can hear sound perfectly!!!


It sounds like your rptv lamp is going out. If this is an older DLP this is most likely the cause. You can get a replacement at www.laptopsforless.com part number BP96-00224J for $151. If the tv is still under warranty, I would have them do it, otherwise replace it yourself. If so here is a link to give you step by step instruction. Please give me a good rating. ;-)

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1 Answer

Picture has turned green


Possible green CRT bad....remove lower front speaker cover
and access panel.......carefully disconnect green PC board
from green CRT ( center tube )....plug in TV..power set....should have steady red/blue pix (no green) = bad green CRT............T.

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