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Flashing green light
MAKE NOTE OS THE NUMBER OF TIMES OF FLASHES & PATTERN AND CALL RCA TECH SUPPORT
I have P46733AT with the same problem. I ordered schematic and now looking for flyback + high voltage transistor.
When I finished I let you know what's going on.
RCA projection P46732BA no power and arcing sound
The High Voltage Splitter is the cause of this and replacing it should fix the problem. Their should not be a shock hazard once power is diconnected. But just incase, ground each of the anode leads from the crts to ground. That should take care of any HV charge from the CRTS. Do make a note of which wire went went where, that is important. When you get the new HV Splitter, you will need to transfer the small board that is mounted on the old Splitter. Again, be aware of where the wires hook up to it and you will be fine.
Hope this helps,
Why 30 seconds after i tur my tv on it goes unfocusedand discolored?
it's a convergence problem. Mine is having the same issue. There are a set three fuses that look light brown and it's usualy the one in the middle but you have to solder in the new fuse. you can buy them from e-bay or other repair stores. If that fixes it great but if not I'm not sure what it is. I've already done this step on my tv as well.
My convergence is not good
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Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com
Common Problem #1) Convergence has gone out
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include....
Here are some pics of convergence problems.
- 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.
- TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
Common 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.
TV set after fluid change
You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
Power went out... after restarting t.v., all
If you have had a recent
power outage this may be part of the television's fail-safe to protect itself
from a surge. Televisions and other devices detect sudden losses of power
and have safeties built-in to them to prevent a
surge from damaging the equipment. Simply turning off a
surge-protector (power strip) or unplugging the device while it is powered on
can cause these safeties to engage. When these safeties
are engaged, it is indicated by odd behavior of equipment. This is
intentional so that the consumer realizes that something is wrong and they will
need to reset the equipment before it operates properly again. Not
all brands and products behave the same way. I had an RCA
Rear Projection Television (the 53" version of this same set) that when this would happen would get only
16 channels and they channels that appeared did not correspond with
the actual channel numbers and some would have their SAP audio track on them
(example: the cartoon channel should have been on 65 but was on 16,
NBC should have been on 3 but it was on 12 and was in Spanish).
The fix to this is
simple. Turn off the TV, unplug it and let it sit unplugged for 24 hours. This is what
RCA RP's require. If this doesn't solve
your problem, the surge damaged something with your audio.
Good Luck! I
hope it all works out and thank you for using FixYa!
Rca model p46921:
While watching tv
This is most likely the B+ voltage in the tv. You can tell the B+ voltage by looking inside the tv (only if you know what you're doing, VERY HIGH VOLTAGE) and you can see a block box shape with a single red wire running out of the top. This powers the projectors and over time can't keep up with the electric need. Replacement is easy as long as you can find the same model.
Please rate if this was helpful!
The power button is coming
If the set comes on by itself it may be a problem with the power switch on the front of the set; lots of these sets had problems there, the only way to know is remove the back cover and locate the cables that come from the front keyboard and unplug them, the set will still work with a remote.
I can tell you exactly where to look for the plug. If unplugging it cures the problem you have two choices: either just use the remote or remove the front keyboard and repair/replace the power micro switch.
Let me know as much as you can so I can assist you.
Where can i get a plexiglass screen?
I have a P46921 46 in rear projection television. I brought it in and they told me it was the processor board (main control board with programming) that wasn't letting the TV turn on and was quite an expensive repair. I now have the parts back and was wondering if someone could use them. I know that some people were looking for the actual screen found behind the plexiglass or what looks like plexiglass. I have all the parts and was told that it worked beautifully until it decided it wouldn't turn on again. Anyone interested, please drop me an email at [email protected]
I HAVE A RCA PROJECTION
your TV is having a power problem. The power supply board is defective that's why the TV won't power up. Its receiving power but it cannot transfer the current to the necessary part of the TV because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the TV might not come on.
If you know about TV repairers, I would suggest that you open the TV and read the power board/panel with a meter, detect the bad component and replace it. Take note that TV stores a lot of current that can shock, so leave the TV for a while before you open it.
If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you.
I wish you good luck.
When i plug it in
Sounds like you have high voltage arcing. Could be caused by leaking coolant, cracked CRT, bad HV splitter, bad flyback transformer..... This circuit puts out around 30,000 volts,.... I recommend you take it to a shop.
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