Question about Sony KP-53V75 53" Rear Projection Television

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Clicking sound, wont turn on

My Sony KP-53V75 has a clicking sound, but wont turn on. Horizontal output transitor is ok. Any suggestions you may have?

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Re: Clicking sound, wont turn on

If the output transistor is good you need to measure the voltage at the collector to see if it has the needed voltage to operate,is also important to check the conections in the horizontal driver transformer and also measure the volts at the collector of the horizontal driver transistor,before you check any voltages check for loose conections and overheated areas,after everything is nice and solid then you can check for volts,be careful while measuring voltages and try not to touch anything with your bare hands while the set is on.Let us know how it goes or if you need more information.

Posted on Nov 07, 2006

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Sony KP53S75

there is some shorted component/s in the horizontal output section of your project TV. check them. Horizontal output transistor and transormer should be checked.

Feb 20, 2012 | Sony Projection Televisions

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I have a kp-51ws500, that comes on the colors get wierd then it shuts off, any ideas? Lamp?

Not Lamp, it is problem of convergence output ICs failure. KP-51WS500 is rear projection tv that has 3 color tubes to make picture, this tv does not have Lamp as light source in DLP tv.
Replace convergence output ICs to fix the issue. Local tv repair shop will help you if you have no experience in electronics stuff fix.

Jul 27, 2010 | Sony KP-53V75 53" Rear Projection...

1 Answer

My sony rear projection model # KP51W5510 it just makes a clicking noise and the power/stand by light keeps flashing no picture and occasionally a sound. what could be the problem

Sorry it took so long to get back to you. It's been busy. You have a problem with the high voltage section. I have a tip at which explains the problem, how to repair it and where to get the parts.

Thanks for using FixYa and for the great rating.


Apr 27, 2010 | Sony KP-53V75 53" Rear Projection...

1 Answer

Sony KP-57WS500 57 in. Rear Projection tv When I press the power button there is no picture but the "timer / Standby" light flashes. Sometimes when pressing the power buttonthe light flashes and I hear...

CK your hori output Transitor and behind it is a blue high voltage capacitor 2k sometimes they will have small burt hole on them ,If it is OK then Replace your STK ICs example STK392-110 Mats has them 1-800-628-1118

Feb 15, 2010 | Sony KP-57WS500 57" Rear Projection...

1 Answer

I have a Sony KP-53V75 projection tv and there is not color on the screen. All three color guns are functioning and the convergence works. Why am I not getting a color picture on the screen?

sounds like you are having problems with the luminance and chroma circuits.go into menu and check the settings. If they are ok, then you maybe making a trip a repair center

Sep 08, 2009 | Sony KP-53V75 53" Rear Projection...

1 Answer

Light blinking...but not coming on

This looks like a problem with the H Voltage or switching power supply section of the TV set. What you need to do is to measure the voltage from the HV transformer to the Anodes of the CRTs with a high voltage probe, and check the voltage output of the switching power supply. What may have happened is a component may have shorted out causing an over-current condition with is triggering the shutdown circuit (These are the relays you are hearing). I would check the Horizontal Output transistor, and the components in that section of the TV.

In addition check the voltage test points on the HV / Horizontal and switching power supply board. This will determine if the section is working or not (most likely not). Make sure you have a schematic, and multimeter and a high voltage probe.
I hope this helps,
Thank you,

Sep 04, 2007 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Speaker Off/On

If I am reading your symptoms correctly, it sounds like you are getting audio to your surround sound receiver, but not your TV speakers? If that is the case, I would be checking for a defective audio output IC and possibly an IC Protector fuse connected to it.

Dec 29, 2006 | Sony KP-53V75 53" Rear Projection...

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Collector on horizontal output is 75 volts momentarily then to 0 volts.

Never measure the collector of the horizontal output transistor. When the set is on that voltage is spiking upwards of 1000 volts and could seriously damage the meter and possibly shock you. Measure the B+ pin on the flyback instead, it should be 135 volts. Usually what I find is that the flyback itself is shorted, so when you turn the set on the B+ comes up and the horizontal output starts conducting, but the computer senses the extra current in the flyback and shuts the set back off. The red timer light on the front of the set will then blink a certain number of times to indicate exactly why the set has shut down. If you do not have experience analyzing the Sony shutdown circuit then have a qualified tech handle it for you.

Nov 07, 2006 | Sony KP-53V75 53" Rear Projection...

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