Question about RCA R52WH73 Projection Television

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Rca 52wh73 i replaced the fuse for the convergence and it worked for 2 days. then blew again i replaced the fuse again , now there is no power it wont turn on

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Your initial problem was the fuse blowing. this is usually caused by bad solder connections on fly back transformer. resolder to solve blown fuse for convergence problem. now for no power check horizontal-output transistor for short. if unit tries to cycle off&on fly back is defective. if no start-up, check capacior in 6v-line center of deflection module in-between heat sink, the top will be raised up . 2200uf/25v replace mch

Posted on Mar 09, 2009

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I can't find auto converge choice in menu of rca 52" rear projection tv.model # R 52 WH 74.


You have 3 pico fuses by your fly-back transformer. One of them blew that controls your convergence circuit. Your TV now thinks that it is a Basic CRT set with 1 tube. Find the bad fuse and replace with a 1/2 amp pico fuse, and re-solder all the pins of your fly-back transformer. Your menu should have the convergence option again.

Apr 27, 2011 | RCA HD52W59 HDTV Projection Television

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Hello I read ur answer to the Fl 231 fuse problem in rca projection tvs. I have...


FL231. FUSE.... The RCA ITC222 chasis has a common problem. and it not all that difficult to repair. Does your rca projection tv have read blue and green shadows? Does it have bowing in affect on the top and bottom of picture? when you turn it on does some thin red green and blue line bow in from the top then go away. The main question to determine if you have the fl231 fuse problem is if you go into customer menu then setup do you have the "CONVERGENCE' option. If you do not. then i suspect you have this problem. In the manufactering of these sets Lead free solder is used. now there is great debate over the use of lead free. connection tend to be more brittle. cracks develop around the solder connections of the high voltage flyback transformer. this very small crack set up oscillations in the cuicit with a 400 milliamp fuse. THis fuse cant take it. When this fuse blows the processor then does not know its a projection tv with three projection tubes. it thinks its a crt tube tv. and crt tube tv dont need "convergence" so it removes the convergence from the set.

TO REPAIR... 1. Warning. this set can generate leathal dangerous voltages even unplug do not attempt if you have no experence with electronics.
2. Remove the back. there a number of torx 20 screws.
3. what you will see is a number of circit boards There will be one on the right and one on the left. the one on the right is the small signal board. the one on the left is called the power deflection board. it has a large black part with a big red or black wire coming from the top, this is the flyback.Next to the flyback on the right of it there will be three small rectangular componets tan or brown in color. these are fuses. the one in the middle is the fl231 fuse.
4. getting to this fuse can be difficult. these two cuicit boards sit on a tray that is removable. to remove this tray it is pulled out and up. BUt watch the wires.loosen the wire tyes.
5 when you get the tray up the bottom side of the board can be accessed
you will now have to unsolder that fuse. one side of this fuse is under a plastic part of the tray. i have found the easest way is to cut away the plastic to get to it. if you dont want to do this you will have to remove the board. only remove half of the plastic brace
6. REPLACE FUSE RCA PART 259213
7 RESOLDER FLYBACK CONNECTIONS simply heat up and add a little solder
8 reassemble set. make sure you examine the set for loose connections.
9 and remember "BE Careful'

on Feb 19, 2009 | RCA R52WH73 Projection Television

1 Answer

I had to replace a fuse for the power supply and know the picture is blurry and bowed


Your convergence power supply is propably not working. The convergence supply board is mounted above the mainboard and has AC 110V supplied to it from the main PCB. That's probably why the fuse blew.Rca Has abulletin regarding replacing two diodes CR19710 and CR19713 on convergence power board.

Oct 02, 2009 | GE 46GW947 46" Rear Projection Television

1 Answer

Blowing fuse on convergence board


in replacing the fl231. you need to resolder the connections on the flyback. see tips and tricks under my profile

Sep 23, 2008 | RCA R52WH73 Projection Television

2 Answers

Sony kp-57ws510 convergenece prblem


You didnt replace the STK's? You must replace the convergance IC's or you will continue to have this problem.

Sep 18, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Did you get an aswser on the IC's?


THe rca itc222 chasis has No convergence ics it uses a series of transistors to do the same. YOU replaced the Fl231 fuse and it blew. Did you resolder flyback connections. this is why the fuses blow. check out the article under the tips and tricks section written by me willtab ... see if this helps if not let me know .. i see alot of these at the shop ( i got one right now in front of me with the FL231 probelem LOL) if can let me know i give you help

Sep 15, 2008 | RCA R52WM24 52" HDTV Projection Television

2 Answers

RCA R52WH74 Convergence Problem


Yes i replace that fluse fl231 all the time at the shop. at least two aweek. and the first few i replaced did the same thing. I would send it back to customer and i would get a call that the set had malfuctioned again and convergence gone. It was determined the reason this fuse blows is bad conections on the flyback transformer. The flyback is the big black component with the red wire coming out of the top. if you examine the connections on this component there will more than likely be a ring in the solder. this is caused by the manufacturing process known as LEAD-free solder. THis cause oscillations in that cuicit. like turning it of and on really fast. this is a very small fuse and cant stand up to this. so when you replace this fuse just simply RESolder these connections apply a little amount of solder to these connection. i am confident this will fix your problem.

Sep 10, 2008 | RCA R52WH73 Projection Television

1 Answer

HD52W59 Convergence problem


DId you solder the flyback transformer connections..... This is the main reason these fuses fail. THe flyback is the big black component next to the fuse. poor solder connection cause oscillations.. this fuse is only .4 amps whish dosent stand up to that well.. resolder these pins on the flyback.... the first time i replaced this fuse i failed to solder played well for 2 days then came back blown again

Jun 10, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

RCA projector blew 5 amp fuse off line in when fuse was replaced picture came up with smaller picture on screen and convergence way out.


whats the model number and what was the fuse number that blew/ was it FL231 the fuse in the middle? If so you need a convergence power supply board.

May 20, 2008 | Projection Televisions

3 Answers

Location of convergence IC's in R52WM24


i have the same problem where is the fusible link i replace 2 boards and a connector (t.v. repair man can and diagnoised the problem but did not fix it)

Feb 02, 2008 | RCA R52WM24 52" HDTV Projection Television

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