Picture is black and I am looking for a part with a number 14401 and am having trouble finding it. The last person who worked on it said if the picture goes black it is the part number 14401 that usually goes out. Can you help me???
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Re: RCA Mdoel number F25432
Is that an L4401? Your missing a number if thats an RCA part number. You did not state if the sound was also gone out. This coil does not go bad, but needs to be unsoldered, then the leads need to be scraped off and then reinstalled and resoldered. This will make the set go on and off all the time. Not just turn off the picture. This coil is located on the printed circuit board, and connects the secondary of the horizontal driver transformer secondary to the base of the horizontal output transistor. Also if the set trys to start up three times and stops, the flyback is bad and is no longer available. if you have no tV repair experience, play it safe and seek out a pro to assist you in this repair. Good Luck
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All projection TVs for RCA
are DLP TVs, with that in mind these TVs have a lamp inside that produces white
light. The color wheel is the one in charge of giving color to that light. Regularly
the color wheel last between 2 to 5 years depending on the daily tv use. Most of
the time when the central barring of the wheel is loose, unstable, or out of
place it will cause the edge of the wheel to make contact with the housing,
producing that whining,
whirling, screeching or hissing sound. These sounds can either produce just a annoying
sound when watching tv or can cause the tv to shut off. When this happens you’ll
have to replace it, if you want to know where to buy, you can look in ebay,
there are many parts you can get at very good bargains, the only thing is that
you buy at a high risk of the part not working ( I had a bad experience). The other
option is to buy at an electronics store online dedicated at selling tv parts,
some can help you trouble shoot your problem and others may have tech support over
the phone (personal recommendation: Discount-Merchant.com ). And last remember
to search your part by part number, NOT by model number, two TVs with same
model numbers but assembled on different dates ( different generation TVs )
will have none compatible tv parts inside, so be very carful.
picture blury problem is due to
1 focus wire loose or disconnected due to long life of connection.this wire is in crt base.
2 focus control mistunned.
3 low voltage on crt electodes.
4 if tv is old then crt is getting weak.
5 crt base or connector loose
hope this helps.
The F25432 uses the CTC203 series chassis. The most common cause of the picture being intermittent is poor solder joints on the small coil connected to the base of the horizontal output transistor. These cracked solder joints will eventually cause the horizontal output transistor to short, and the power supply will "squeel" when plugged in. If you have experience working on TV's then you can try resoldering the joints on that coil and checking/replacing the horizontal output transistor. If you do not have experience working on TV's then allow a qualified tech to handle it for you.
hd52w-- check r14705 for an open (should be 12k @ 1/2 watt... res. will probably break as you check it with a meter.
if bad change (splitter}!! check Hor. Output for a short (Q 14401 ) it wiLL be bad. i advise replacing high voltage Xformer also (T 14401 )
make sure you cut leads to the proper lengths((not too long))..
the horizontal output transistor my be shorted out, or the flyback transformer my be open? Have you unsoldered and tested? If you are not a technician, or have no experience I would not suggest to work on the tv yourself.