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

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Red lamp gives off ghostly blurr

When I look in the red lamp the picture is not clear. it looks like a bad tv reception from an antenna. on the screen it gives a double vision in red

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  • eicdog Dec 31, 2007

    How do I replace the STK IC, where do I buy a part?

  • eicdog Dec 31, 2007

    Could you please tell me the part numbers Of the Red Convergence IC and the part numbers of the STC IC When I looked at the part store on line there are tons of IC's



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Red convergence IC is bad...replace both STK IC for durable,
long-lasting repair..............................T.

Posted on Dec 26, 2007

  • Vista Electronics Dec 31, 2007

    1) Look inside on large heatsinks..verify STK392-110 's

    2) Replace with Brand name only ! JVC,PAN,NAP,etc.

    For upgrade, I use STK394-160 HITACHI PART # CZ 01341

    3) Check B+ feed resistors located near IC's (burnt ?)

    4)Reassemble....activate magic focus.....




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My Sanyo Vizon 32 inch flat panel has times when part of the picture becomes a "white ghost". How do I adjust?

Actually that is quite a rare case on today's modern digital flat panel TV's. You're not saying where you live, and you're not saying if you have previous issues on older TV you had before digital, and (again) you're not even saying whether you're on a hill or deep into a gorge. No TV has ghosting these days, but if you're living in an area as above, go see the TV people and they will probably recommend a set top box. But that isn't really necessary if you have a modern flat screen TV because most of these TV do two things, they give you a crystal clear picture or they don't. Digital TVs have a channel searching system that does the searching for you, and, as the case may be, these only pick up the best channels that give the sharpest picture. Anything that is of poor reception they ignore, so you're actually missing all the channels available because of this ghosting issue. AN there is nothing to adjust on the ghosting, snowing and vertical or horizontal bars, etc. These issues are things from the past, e.g. old analog TV's.

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May 05, 2014 | Televison & Video

1 Answer

Hi! I am experiencing the following three

Hi Rafael,

First of all thank you for posting your question here at Fixya.
Please confirm if the brand and model number above is correct.
Blinking of the the LED (yellow and blue) at the front panel indicating that the lamp door cover is not seated properly. This cover will engaged to a micro switch giving the signal to the processor, once it is in open position, the unit will not power up and will experienced that kind of blinking error code. Go back to the lamp door cover and ensure that it is properly seat-in.
3D, 2D, red/green/blue ghost on the picture and letters means that the convergence circuitry gone bad. Symptoms is not connected to the light engine. The faulty parts is the convergence chips(IC). This chips are mounted on the large aluminum heat sink and starts with STKXXXX-XX (X means number). The most common STK chips used on Projection TV's is the STK392-110. You have to replaced them both on the board to resolve the issue(red ghosting). It is necessary also to check the resistance value of the resistors around its circuitry using the multimeter. For more info how to repair a convergence problem, watch the video below.


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Ok here you go, I needed to replace my lamp on my Sony KDF-50E3000, lamp XL-2500. Easy replacement, however now only the picture is HD and any words, at the bottom of the screen are blurry. The blurr...

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If your TVs internal telescopic antenna has broken, you can us an external antenna from connecting to the rear antenna socket. For that you have to buy some extend of antenna cable, and a yagi antenna; as it is better for reception. If your TV screen size is 14" or below, a small wire of length 2 mteres or so is enough. Buy one Balun coil assembly fro electronic sparepart shop, and connect this wire to it, connect it to the antenna socket at the back of the TV, and with picutre just wave it to some side where you get the maximum picutre clarity.
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My 2 year old Toshiba 42hl57 has developed what I can best describe as a ghosting problem, small white lettering appears with a clear shadow to the left of the lettering and some lettering seems to flare,...


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Usually when you get this "ghost effect" the caused by signals reflecting from large buildngs.To improve move antenna for best reception or install an aerial wit a small pick up front print.
Or check you have the correct aerial for the tv installed.

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Toshiba 32'" tv wont give sharp picture

no rocket science here - my son fiddled with the cable cord attachment, until presto, the screen became sharp. Then we moved away as fast as possible, lest we shifted it and it put us back at square one.!!

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GB4308 Ghosting

The cost I don't know, but this can be fixed. There are generally 3 lamps in projection T.V.'s, Red, Green, and Blue. They have to be aligned for the TV to project a clear picture. A credible TV repairman should be able to fix it. Depending on if it's new enough to be under warranty they may cover it as well. Really the only reason to get rid of it is if you want to get a new TV anyway. Depends on the cost of having the lamps aligned.

Jan 02, 2009 | Apex Digital GB4308 43" Rear Projection...

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