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How do you replace a bad tuner - Televison & Video

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Just desolder out the faulty tuner from the circuit board, and repalce it with an original number tuner. Adjust the AGC and AFT settings if necessary. That's all.

Posted on Jan 04, 2013

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Tuner not working and its good all the voltages are there


could be but this is not a extremely expensive set, Sometimes the tuner if bad has bad solder connections on the board INSIDE the tuner, most that do will react to being banged on with set on and signal hooked up, a replacement tuner if available would be rather costly, doe the set have audio/video input jacks on it?

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Hello; This is the threaded RF connector or F connector. It is part of the Tuner or even more rare an RF isolator. In either case the tuner or other must be replaced. I have replaced the connector alone, but it very difficult since soldering the jack back onto the tuner chassis causes the plastic insulator inside the jack to melt. The only way is to run a stream of freon through the jack while soldering is done. _ VERY expensive! Tuners for VCR's are near impossible to get now. You may also be able to use your separate A / V input jacks depending on your equipment , and not even need to use the tuner! John

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I have a General Electric Model: 27GT620 TV circa 1998; the cable connection has become loose and has caused the picture to go from picture to snow; originally we could "wiggle" the male...


Yes, you have a bad ground on your RF connector. With lots of patience, it can be repaired. You must remove the tuner shields from the TV. It will need to be unsoldered. Pull the shields off either side of the tuner. Donot even attempt to move the red coils you see in the tuner. If the red coils look bent or smashed it is for good reason. Do not bend or move these. I cannot say enough about these. Next you will solder the Rf connector and the tail that is is still connected to the tuner board. Inspect all the solder connections on the solder side of this tuner on board.There are about twenty bad grounds. You will have to really concentrate and excercise great caution to solder. Be careful not to burn any traces on the tuner board. Patience is a virtue here, any mistake may destroy your TV. After careful inspection and soldering you may resolder the tuner shields. If you feel you must replace the Rf connector that part is an RCA #215543. Remember it will take more than replacing this connector, to fix the snow you receive on the TV. Thanks for asking and show a few hands of support.

Dec 28, 2010 | GE 27GT620 TV

1 Answer

Sound no pic


Yes,ur Main Tuner signal board have problems,just not dead yet.Replaced the Tuner signal board,should solved ur problems.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish Tuner signal board for the replacement.

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3 Answers

Radio plays upon startup but withing minutes message says searching for signal then antenna not found. replace antenna?


No, it's the Sirius Tuner. If it's 2 or so years old, there's a bad ground on the antenna port pc board. If your tuner is roughly 6"x6"x1" it's the one. The new tuners will not have this issue and are considerably better built. (DEI) is the manufacturer of the new unit. If you don't mind rebuilt, you can save 40 or 50 on a repaired tuner. The repaired tuners are very reliable since they upgraded the board with one that's durable. Hope this helps

Dec 10, 2009 | Sirius Satellite Radio Receiver

1 Answer

TV Model # C27A24T about nine or ten years old. TV


Bad grounds and bad caps will cause the problems in this tv. You will need to replace several caps and resolder the tuner itself and that means taking the tuner out in some cases and rework it. This is very time consuming and needs great care not to destroy the tuner. And reinstall the tuner to the board. You need the cap check to locate bad caps and visual to see bad grounds on any Ic on heatsinks. If you are a do it yourselfer fine.. If you cannot do this I would just replace the tv.

Oct 11, 2009 | Zenith C27A24T 27" TV

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The tv acts like the cable has gone out even though it has not. on my mitshubishi rear projection 52 in


do you have the yellow video and red and white audio rca cables ?
it will give you a better picture than the coax connection.
but the tv tuner may be going , so using the rca jacks would eliminate the tuner, but finding out which tuner is bad ( cable box if using one or the tv tuner)should be checked with another tv to see if it also happends to that tv , if it does not then the other tv tuner is bad and needs to be replaced

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1 Answer

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Hi:
On the stanby power supply replace or have replaced C899 with a 100uf 35V capacitor, this capacitor goes bad and produces hum in the supply voltage to the AM FM circuits.

Dec 02, 2008 | Sony HT-DDW740 System

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YOU HAVE AN INTERNAL TUNER FAILURE IT NEEDS TO BE REPLACED

Jan 06, 2008 | Televison & Video

1 Answer

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Bad solder connect inside tuner = un- solder tuner from
PC board and solder bad connect or replace tuner with new..
I.F. block next to tuner should be soldered,also.......T.

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