Question about Sony KP-53HS30 53" Rear Projection HDTV-Ready Television

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Problem? Would that cause no picture at all, just sound. How do you check to see which one and is it the tube or circut bourd? Thanks, Chris Jones

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Yes if if one of the picture is not balanced goes to some kind of protection mode probable picture or board but is very rare that the board coused this so hig % is picture tube a good tv shop can try to fix this with no hig $ and to find which tube is you MUST BE EXPERIENCED TECH remove crt socket and hig voltage lead at one @ time and when picture come back the one leff unplug is the deefective and try a rejuvenator to clean that tube... more info e-mail

Posted on Apr 02, 2008

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Sanyo 52 " loud pop,


Sound like you blew a capacitor. Check for any oil on the circuit bourd and check for any bulging capacitors.

Feb 06, 2011 | Projection Televisions

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My wife was cleaning around our Pioneer sd-532hd5 tv and she moved the tv to clean behind it. When the did, the color went awry. The sound and video is ok, just the color was affected. We have checked the...


now in the front of your tv you will see a weird piece of wood that looks like it doesent belong now its a piece of wood in the front of your tv sicured by a few screws and 2 dowels and inside you will see 2 circut bourds infront of you and a few more behind them , you will also see some connections to the botom of the projectors themselves , now you need to look to your left side and on your left you will see a little black or white casing with what looks to be 6 screws on it , but there not screws there the adjustments for your tv now just fiddle with those 6 screws til you can find your favorite color or setting and close it back up and ENJOY!!!!

Jan 18, 2011 | Pioneer SD-532HD5 53" Rear Projection...

1 Answer

Hitachi 51f59a lost picture powers up and can hear sound amp come on when turned on and off but no picture


You may have a shorted horizontal output transistor. This transistor drives the high voltage transformer which in turn drives the picture tubes. High voltage can be dangerous so you may want to have a repair shop check it out for you. Also have them apply a bead of silicon around the anode caps on the picture tubes. This will prevent high voltage leaking out and causing the horizontal output to short again. Thanks

Oct 27, 2009 | Hitachi 51F59 51" HDTV Projection...

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IM A TV TECH. I HAVE A SONY LCD KP-60XBR800 I HAVE NO RASTER. POWER OK, MENU OK BUT NO RASTER ON TUNER, TUNER VOLTS OK,CAN YOU HELP ME PLEASE. THANKS my email sergioaguirre0182@hotmail.com


check the high voltage with the screen control turned up high where there is no raster. suspect problem within the video circuit where there is no high voltage or defective picture tube.some time when the screen is black and the screen control advanced,you can see if the tv has video or vertical or horizontal problems on the screen.service the high voltage circuit if there is no raster or high voltage is seen.no raster can be caused by the no heater or filament in the CRT.---- a defective picture tube can cause many problems, such as, poor brightness ,missing colors,intermittent picture,poor focus,a single-colored raster,arching in the gun assembly,retrace lines in the picture,negative picture,chassis shutdown,noheater or filament lit and no raster to name a few.an open filament or heater can cause no picture or no raster symptom.a defective CRT can have an extremely bright screen.loose particles of the cathode element can lodge between the grids and cause an intermittent black and white picture. simply tap the ends of the CRT gun assembly and notice if the picture begins to flash off and on.---- with a leaky picture tube after turn on the raster dims and get extremely bright.a dim picture with no green in the raster can result from a bad green assembly. a heater-to-cathode short can cause a raster to change colour or a result in no raster at all.replace the picture tube if there is severe arching in the neck of CRT. excessive brightness with retrace lines and a vertical collapse to a thin line can be caused by a bad coil on the neck board of the picture tube.rejuvenate the picture tube when there is very bright green screen. check for the resistance change on the resistors of the CRT neck board for an excessively bright picture with retrace lines.excessive dust inside the CRT spark gaps within the picture tube socket can cause the very bright raster and the chassis shutdown.a defective video amp,luminance buffer,or reference transistor can cause a bright picture with retrace lines. -------- for getting any required parts to replace you can get it from www.radioshack.com or from www.partstore.com or from www.shopjimmy.com --------- thanks.please do rate the solution.thank you for using fixya.keep updated.

Sep 06, 2009 | Projection Televisions

1 Answer

I have a samsung tantus rear projection tv. When i turn it on the picture starts to separate and go out. Then the timer, lamp, and temperature lights all flash until i unplug the tv. I have replaced a...


sounds like the hv circut is trying to drive ashort and forcing the tv in shut down this can be caused by improper waveform output ic conve circut i would suspect ic 2 test check resestince betwen pin one ic and ground if lower than 1000omhs its bad replace hope this helps u buy parts nte semiconducter.com vote 4 me please

Jul 25, 2009 | Samsung Projection Televisions

1 Answer

Is this fixable??


Unfortunately, this sounds familiar. Many of these sony projections had bad crt's.(picture tubes). Now here is a secret I learned along the way. The short in the picture tubes is in the filament, causing that color to overpower all others and sometimes causing pix to disappear until set is shut off and back on. If you are very careful and use an insulated screwdriver, you can sometimes tap on neck of picture tube and knock debris from filament causing extended tube life. This is dangerous and must be performed with set turned on. From front of set gently tap on neck of tube(s) in question using insulated handle of screwdriver to make contact with picture tube neck. Picture will probably flash whichever color tube is contacted. Eventually, if picture stops flashing that color as much, you can sometimes get several more months out of your set without any problems. Only alternative is to try a crt rejuvinator or replace tubes at a cost of 200.00 each if avail. plus labor. Good luck, Russmann.

May 26, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Hitachi c2114t loud buzz on bright screen


sounds like you have a gun or picture tube shorting. check the bottom of the tubes when you turn it on and see it one of them is lit up more then the other two if you find that then unplug the circut board thats pluged into the tube and turn on the tv again and see if you problem goes away minus that color.

Feb 23, 2008 | Projection Televisions

1 Answer

Lost picture on LCD TV


Hi.

Your problem is very lightly to be A faulty invertor pcb.
Relatively easy to replace but you may find it difficult to purchase.

The invertor pcb basically makes high voltage to strike up the tube lights behind the screen.

What make & model is your tv set & what country are you in.

http://dysonmanuals.llc.nu/

Chris..

Dec 30, 2007 | Projection Televisions

1 Answer

No picture or sound


The most common cause for a bowed picture is the convergence power supply module. The module will fail and sometimes blow the fuse. Average cost of repair would be around $100, if you brought it to a tv shop, more for in home service.

Sep 08, 2007 | RCA P46920BL 46" Rear Projection...

3 Answers

Power but no picture or sound


Is hard to tell if the set is going to need parts or not,maybe not,since you protected the set from dust is not likely the cause of the problem,after a while the units develop loose conections because of the heat dissipation some components have and the solder conections become loose.Be safe and seek assistance if you are not too familiar with tv service.

Sep 27, 2006 | Mitsubishi WS-55857 55" Rear Projection...

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