Question about Sony KP-53XBR45 53" Rear Projection Television

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No video, timer/stanby light blinks

I have audio, but no video. who can i get to repair this?

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Re: no video, timer/stanby light blinks

I don't know if this will help or not, but I noticed mine starting to do the same thing lately, audio works fine when I turn the set on, but I get no video. I noticed that when I pull the front cover to get to the Light Intensity and Focus controls (G2 controls, I guess), and give just a slight turn on one of the knobs, the video comes on, but then I have to turn the knob back to where it was, to keep the colors right. It gets to be a real pain after a while...

If you have already had your set repaired, please share the solution!

Posted on Mar 24, 2008

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Hlp 5063w on off front button flashing lamp then stanby..hear sound no picture.. shuts off then comes on.

If the lamp and standby lights are both flashing and the timer light is off, check that the lamp cover on the back of the TV is properly positioned in the groove and secured by the screw. Take it off and check that the screws that hold the lamp itself are secure. There is an safety feature that keeps the lamp from turning on when the lamp cover is off.

If the three lights (timer, lamp, and standby) are blinking, then the lamp needs to be replaced. If the timer and standby lights are blinking and the lamp light is off, then a cooling fan isn't working. When only the standby light is blinking and the other lights are off, the unit is overheating and a ventilation area may be blocked.

I hope this helps.

Cindy Wells

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1 Answer

Ml-r4667w timer,power,stanby/high temp leds on front panel blink replaced lamp w/original pt

If you replaced the lamp and it illuminates and three blinking leds still appear the you have a bad Color Wheel.

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Stanby light flashes 5 times breif pause then flashes 5 times again

AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

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1 Answer

Tv wont turn on get audio then tv shuts off timer lite blinking

If TV stays in stand by with audio but no video, then common faults are the ballast board, or a fault on digital board.

If the led stays blinking , and tv turns off then the TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.

If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

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Won,t turn on.

FOUR Blinks---No Vert. Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. check the vertical deflection IC and circuit

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1 Answer

Sony KP-53xbr45 problem

on your model which is a RA-1 chassis the power light blinking steady just means the standby voltages are operating, so you will need to trouble shoot the power supply. you will either need the service manual or training manual to trck down the faulty component.

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1 Answer

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Definitely sounds like a power supply problem. Check with your local TV repair/service center about getting it repaired or replaced.

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