Question about RCA HD52W66 Projection Television

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Replacing tuner I was able to find a new tuner for my digital input. Not as easy as I thought, it's attached to a circuit board! Can it just be pulled off or is there sauldering involved. Any feedback would be appreciated. thanks, Ron

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Carefully un-solder.....look before you leap....damage can easily
result from improper removal / reinstall....................T.

Posted on Mar 05, 2008

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Philips powervision tv my tv tuner pin is broken


You're discussing about the input socket [Ariel socket] to your TV is broken; I assume, and posts this solution. In most cases, this is a irreparable fault; because, this socket is directly connected to the tuner, and is a part of tuner body [case]. If it is broken, the the tuner should be replaced with an identical one. You should check out the number of the tuner used with your TV; can be noted on it by a sticker. Just buy that number tuner, and replace it. The tuner can be bought from most of the electronic spare part selling shops.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Apr 17, 2014 | Projection Televisions

Tip

Convergence solutions


Wanted to share my experience solving a convergence issue on my PT-51HX42 (other Panasonic rear projection sets are similar).

Red convergence was way off one day, and doing some research, I discovered a common failure is the STK392-110 convergence amplifiers that this set uses. Pulling the back off, it was easy to locate these two chips on the left side near the tuner/inputs attached to huge heat sinks.

I ordered STK392-180 chips as replacements as they can deal with heat and power better and are direct replacements otherwise. Here's some tips below:

* Detach the 9 cables on the convergence/tuner board, but leave it attached to the power board, you'll have enough room to work with

* Get a good deslodering tool as each chip has 18 pins

* When you detach the chips from the heatsinks via 2 screws each, you WILL strip the heads as they used very soft brass screws. Plan on getting new ones from Home Depot or Lowes as well as new washers.

* With the chips out, measure the resistance of the handful of resistors nearby. It's easy and they should all be labeled. Mine were all within 10% of rated.

* Make sure you get some good heat sink compound. I used arctic silver from a CPU cooler

* Putting the new chips in place will be a pain because the leads bend easily, so just be patient

* Screw the heat sinks to the chips first such that they'll dissipate heat from the soldering iron

* Have lots of light while soldering

* If you plug it all back in and it flashes the power LED 3 times, recheck your solder connections. You can trace the solder points to the traces on the board easily.

* If you plug it all back in and it flashes the power LED slowly on and off, check to see if you have any shorts. It's easy to do due to the proximity of the pins on the chips. Fortunately the circuit is robust, so it's unlikely to blow anything. Note that the top two pins of each chip ARE supposed to be connected to each other electrically.

* If it all comes back on, you'll likely have to play with convergence. The menus will get you 1/2 way, but be sure to enter service mode and do that convergence as well. To do this, set your input to cable, set the self timer to 30 minutes, exit the menus, tune channel 124, hold the volume down button on the set (not the remote) and you'll get a "CHK" in the top left. Hit the power button on the remote and navigate to the fine CONV settings. You mostly want to play with the red point and blue point settings. You can cycle through them with the "1" key on the remote, and to enter them, use Mute. Then move your cursor via remote, and hit mute again, the remote then can pull convergence as needed. Hit "7" to save and exit. Power the set off via the buttons on it and you're all set. Note that convergence for 480i and 1080i need to be set separately. If you want to set 1080i, after the CHK appears, use video input selector to tune to a HD signal and do the same steps.

Good luck! Feel free to contact me for more info if needed.

on Jun 25, 2008 | Panasonic PT-51HX42 51" Rear Projection...

1 Answer

HL-R4667W vertical lines when I use any of the components and or AV inputs, but is ok with HDMI, any help?


Someone would have to look at a schematic to see where the HDMI comes in in order to know where problem is (what to replace).

Since a/v jacks show same trouble it is well after the tuner and is likely located on the board connected to the jacks for input---an area that deals both with tuner and conventional rear inputs.

A schematic or even a block diagram of signal flow in the set would narrow this way down to what you need to replace.

Try to Google for this with the model number and words like block diagrams, service manual etc.

One last foolish thought---have you removed the HDMI connection to see if other inputs clear up?

Mar 26, 2012 | Samsung HL-R4667W Rear Projection...

1 Answer

My Mitsubishi hdtv 1080 Integrated model has a flashing power light. It won't turn on or take any other camands. Model # WS-55511


Easy fix, pull the DM board ( box with the digital audio orange plug to the left of the patch bay)
this box has several multi cable plugs , but all are labeled with a two letter system and so is the board where they go this makes it easy to put back together
Pull out and open the box ( about 12 screws and then pull the cover off) you will see a small board with 3 cables attached, pull this board by removing the 4 screws and then replace the 7 capasitors with a 25v 1000mf or 35v 1000mf either will work, the 25 volt fit a bit easier. make sure to put the longer leg in the + position on the board! ~ now replace everything and enjoy your set!

Jul 24, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Cable inlet broke off how do i install new one


You will have to pull this board out and unsolder the tuner. When the tuner is out pull the cover off the side where the solders are. If you pull the other side off...dont even think about touching or moving those small coils. They ars bent like that for a very good reason. If pulling out the RF connector did not brake the board or pulled on one of these coils, you may be able to replace a new RF connector with soldering. If not, a new tuner purchase [ expensive] will be necessary.

Nov 25, 2009 | Projection Televisions

1 Answer

THE MALE ADAPTER FOR FEMALE CABLE INPUT IS BROKE, CAN I buy just that piece


You can but you have a real problem---someone is going to have to unsolder and remove the tuner that the coax fitting is a part of--not real easy on this model----

Then to replace it you have to unsolder whatever is left of the old pin from its center that is soldered into the circuit board inside the tuner-----


There is a much easier way to deal with this---if you have cable, direct TV, sat, whatever----get a box that allows you to connect into one of the sets of audio and video jacks on the back of the set---you bypass the cable fitting and the tuner--you can even use a old vcr and it does not have to be able to play--just use it as a tuner and go into one of the video inputs---

Let me know if you have concerns or questions- I am here to help.

SD TECH

Oct 31, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

My son tripped over the cable cord and the cable/antenna input came off. Is it repairable and is it costly to get it fixed


It depends if the connector broke the tuner it is attached to. Most times the chassis of the set would need to go into the shop. I would generally charge $80.00-$120.00 if the tuner was still good - a new tuner would cost $60-$100 more if bad
The better solution is to use the video audio inputs (if on satellite or cable box) or use the video inputs by changing channels through the VCR (if on cable or antenna and a VCR is available)

Oct 22, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Tuner


whats wrong with the old tuner? did the connector break? depending on the damage the connector can be replaced to replace the tuner right out i would call a medium difficult level. it invovles removeing the signal board the board with the tuner on it simply unsoldering and replacings care should be taken not damage surface mounted components. at the shop it is possible we repair these tuner which involves opening the can tuner and soldering a new connector to the can of the tuner.

Oct 24, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Help me


If you are decent with soldering iron you can repair it yourself. Remove the back, and remove the signal board from the unit. Unsolder the Tuner from the board( If I've lost you already, call a TV shop for repair) Remove the shields on the tuner and inspect for damage to the tuner itself. If the board is in good shape, replace the RF connector with RCA # 215543. you'l have to unsolder the old ends connector ( the wire thats still there broken ) from the board, then attach the new end, and solder to the board. Then using high heat, solder the Connector to the tuner housing. Replace tuner on board, hook everything back up, and you should be in business.

Jun 01, 2008 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

AKAI Rear projection...


the back panel of the tv where the inputs go. that panel is usually attached to the signal board by clips. Resolder the clip pins on the back side of the signal board. The tuner should be a small rectangle box with a coax cable coming from it going to the coax input on rear panel. resolder where that tuner attaches to the signal board.

Mar 17, 2008 | Akai PTH5498 54" Rear Projection...

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