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Thanks for the reply about the convergance chip where can I pick one up up from the manufacturer or a radio shack ect.?

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  • angie_harper Jul 01, 2009

    Hitachia ultravision 52 inch hd

  • John Snow
    John Snow May 11, 2010

    What is the make and model of your set?

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Model number ? IC number ? and radio crack doesn`t sell convergence ic`s, get back to us with model or IC`s "stk #" video-tek

Posted on Jul 01, 2009

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Hi I have a convergence issue. Is there a place in NYC where I can purchase these replacement items: (1) FL231 micro fuse (1) DL231 Diode (1) CL230 radial Capacitor I repaired the initial...


This DLP model RCA tv have convergence menu disappearing is very easy to fix just replaced the convergence fuse FL 231 near the FBT also must be resoldering FBT too.U can buy this FL231 covergence fuse at Ebay.com.No,but u must have to have a soldering iron,a desoring pump or desoldering braids and know how to basic soldering?To replaced this FL231 convergence fuse near the FBT and also must resodering the FBT too for protecting the new FL231 convergence fuse.

Mar 02, 2011 | RCA R52WM24 52" HDTV Projection Television

3 Answers

Hitachi ultrasound hd


voltages to IC's There's a shielded module near convergence IC's It could be bad too. Check voltages to It.. I had simular problem /replaced IC's did not fix..Replaced module & did convergence.. TV was fine so try this 1st k

Jan 29, 2008 | Hitachi 43FDX01B TV

1 Answer

1986 corvette no power to when key is turned Battery is at 13 volts and conections are good.


It is your vats system it is locking you out. It is not reading the ignition key chip. You can by-pass the system with $5:00 worth of parts from your local radio shack. You must read the resistance across your key chip first then go to radio shack and pick up the resistors needed to match your key chip(they will assist you mine read 1850 i have a 86 vette), twist/tie them together then solder & tape them up with electrical tape. Bend them into a u-shape, locate the the 2 wires that run to your vats logic module that is tied into your ecm, should be in the middle area of your dash next to your radio(yellow and brown in color. Cut those 2 wires and add your (radio shack) resistor series between them and happy motoring no more vats problems for ever. Good Luck

Dec 13, 2010 | 1986 Chevrolet Corvette

1 Answer

My scanner scans really slow and does not play any of the frequencies I have they worked before


if the frequencies you had before were police, ambulance, fire ect. then they have all gone onto the new tetra digital system and so you will not be able to pick them up.

if its things like the coastguard, airband, amateur radio that you caan no longer pick up, then the scanner may be faulty.

From memory the pro 97 used to scan fairly slowly anyway, but if its scanning like REALLY slowly, say a channel every couple of seconds, then check the Squelch setting on the scanner

Sep 01, 2010 | Radio Shack Pro-97 Handheld Scanner

1 Answer

Radio shack 3 in 1 remote need to program a sanyo tv


Try this link: http://support.radioshack.com/support_video/44686.htm

If you don't have luck there, then try this one: http://support.radioshack.com/support_video/16726.htm

(Click on "Manufacturers' Codes")

You will find other stuff there too...like manuals etc.

Hope this helps!

P.S., If this answers your question, please use the "Fixya" rating system to rate me!!

(Otherwise, reply with your results and we'll see if we can help any further.)
Thanks!

Mar 17, 2009 | Radio Shack 3-in-1 Easy-to-Use Universal...

2 Answers

How to replace the converge ic


Your convergence IC's have gone bad. There are 2 of them, you should go ahead and change both while you have it apart..

These IC's operate at a very high temp, and usually only last 4-5 years.
If you remove the back of the set, you will want to look for the BIGGEST heatsink in there, on that heatsink, you will see 2 lage IC's , probably STK392-110, or STK392-120's or something close...regardless - you can go on ebay to order the new ones, but MAKE SURE they are Genuine SANYO IC's and not counterfiet cheapies. the cheap ones may last 2 years, or only last 2 minutes..
You will also need some "Heat transfer paste" - you can pick this up at radio shack.

Once you remove the old IC's, using a solder ****** (radio shack will have this as well...) test all the large resistors near them.. pull one side of the resistor out of the board so you can check it out of circuit. they will usually have the value in Ohms, printed directly on the resistor, but you may have to use the resistor color code to find out what value they are....However, usually if there is any damage, the resistor will look like it has been very HOT or fried. replace the IC's and any bad resistors, and you should be good to go.

If after replacing the IC's and any defective resistors, the convergence is still bad, make sure to use a multimeter to check ALL fuses on the boards, --- sometimes when the IC's go, they will take out a fuse to the convergence power supply. If you find any bad fuses, replace them accordingly!

If this STILL doesnt make it look right, you will need to find out how to get into service mode and do a coarse convergence adjustment. This information can be found in the Service manual for your set. If you dont have one you can download it at manualuniverse.com


Hope that helps!

Jan 12, 2009 | Philips 55PP9401 55" Rear Projection...

1 Answer

Radio shack pro-95 scanner


Radio Shack scanners are not as sensitive as others, but the problem may be your location, especially if you're in a valley with mountains between you & the town that you're trying to receive, or if you have aluminum siding on your home, as metal blocks radio signals.

If either of these is the case, the best solution might be to erect a scanner antenna on your roof or the highest place possible (above metal siding) & connect its cable to your scanner.

Sep 21, 2008 | Radio Shack Pro-95 Handheld Scanner

1 Answer

Convergence issue


Its an easy repair if you can solder. just label any wires that you remove so you can put them back properly. Its just unsolder the old and solder in the new. Use the radio shack de-soldering iron with the rubber bulb it will make the job easier, and also purchase some heat sink compound to apply to the back of the ics where they contact the heatsink. They are located on the signal board which is on the left side of the chassis. change both then just do a convergence adjustment. If you need more help let me know. you will also needa pencil type soldering Iron from radio shack to resolder the ICs a 15 watt iron works best.

Mar 20, 2008 | Panasonic PT-47WX42 47" Rear Projection...

2 Answers

Hitachi ultrasound hd


It sounds as though you have a convergence problem. This problem is normally a convergence chip ( there are two (2) of them on the convergence board )
If you intend to correct the problem yourself, always remember to practice precautions by unplugging the tv before removing or servicing the set.
To change these chips, carefully follow these tips . I do suggest you change both chips as I have found that when one goes bad, the other one is on the way out also.

Remove the bottom back cover by using the proper screw driver or nut driver. usally a 1/4 inch nut driver or a phillips screw driver is all that's necessary.

When you have the boards exposed to view, notice on the left center of the convergence board ( the convergence board had 2 large ( large being 3X4 inches) chips next to each other. These chips normally are marked with number like STK 3020, STK 3050 etc.( I don't know the exact number on this perticlar set but they are all about the same ) They usally have about 15 pins ( wires ) coming from them. May be 12 or 18 but normally 15.
This board needs to be removed to change the chips, so remove any screws that mount the board and disconnect each wire connected to the board. ( NOTE : I normally mark each wire with some kind of a color code with permanite marker pen as to know exactly where to reconnect the wire to eliminate any mistakes )
With a soldering iron ( normally one of about 25-40 watts works well ) and some de-soldering wick ( can be purchased at most electronic parts stores or Radio Shack ), remove the chips.
Clean all the connections after taking the chips loose from the heat sink ( the heat sink is the aluminum plate the chip is screwed to ). Apply an ample amount of heat sink compound ( silicon grease it is sometimes called) ( can also be purchased at Electronic Parts Store or Radio Shack ) to the back of the heat sink and reinstall the new chips ( make sure the new chips are of exact numbers as the old), being extra careful not to bend the pins. Solder the pins being extra careful not to jump solder across any connections.( if you happen to apply too much solder and do in fact jump lead across the connections, simply use the de-soldering wick and remove any excess solder ).
Reinstall all the wires and screws to the board ( double check for mistakes ) and turn the set on, checking for the correct convergence. You'lle need to do a quick convergence with the magic focus switch after warming the set up for appr. 20 minutes. Reinstall the back of the set.
The set should work fine.
I do hope this helped
Ed
NC Electronic
Mills, Wyoming

Jan 29, 2008 | Hitachi 43FDX01B TV

2 Answers

Replacing convergence chips


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo2_bing.gif STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Nov 15, 2007 | JVC AV-56WP30 56" Rear Projection...

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