Question about Philips 30PW633R 32" TV

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Picture blinks... When I turn the TV on, the screen blinks about once every second or two.What do I need to fix it?

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This is the problem of power supply called hunting.

there might be some capacitor faulty or loose or may not be getting supply in switching oscilator section of power supply.

hope this will help.

good luck.

 

Posted on Oct 17, 2007

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Posted on Jan 02, 2017

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Jan 26, 2016 | Televison & Video

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I am currently working on a Sharp Lc37sb24u. I was originally thinking it had a bad inverter board but now I am not so sure. When I turn the tv on the picture comes up with audio for about 2 seconds the...


Did you check the service manual troubleshooting guide yet. You can try disconnecting the power to the inverter board and see if it will stay on and have sound.
Service manuals:
http://elektrotanya.com/?q=showresult&what=Sharp%20LC37SB24U&kategoria=&kat2=all

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Oct 27, 2011 | Sharp LC37SB24U 37 in. LCD TV

1 Answer

Picture went out and red light on the front by power button is blinking. When I turn TV on I can hear sound but no picture,, then TV turns off automatically after a few seconds.


Hi,
It seems problem with low screen voltage to three picture tubes in this rear projection tv.
If standby light blinks 5 times after three seconds long pause then adjust screen volts of each picture tube to solve this issue.
Screen volt adjustment requires expertise and job of professional so please call local tv repairman to help you.
Thanks.

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1 Answer

Maganavox flat screen tv no pic, red light blink codes...


Those blinks are fault codes. To know more visit the site linked here. http://electronicshelponline.blogspot.com/

Mar 25, 2017 | Televison & Video

2 Answers

Picture & sound go on & off every sec, red light blinks 5 times


helloFive blinks - 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.

shaun

Oct 25, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

Intermittent picture on Sony KV-36FS10 TV


This is possibly an indication that the picrute tube is starting to fail. To confirm this, open up the back and carefully turn up the screen control just a bit. This is the upper control on the flyback transformer (part with large red wire coming out the top). Turn it only slightly clockwise. If the picture remains on, this suggests that the tuvbe is starting to fail and you will have given yourself enough time to find a replacement. Please note that this is not a permanent fix.

Keep us posted.
Dan

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Tv turns self off when turned on


Does it blink a certain amount of blinks pause a second or just blink constantly with no pauses? Let me know it will blink a code if its going into protected shutdown. And it will blink constantly for another reason.

Jan 22, 2008 | Sony KP-53HS30 53" Rear Projection...

1 Answer

Television


tbrace, your picture tube is getting a little tired, the "IK circuit" is causing the blanking of the video because the tube is not returning a large enough signal back to the IC that monitors it. Theres only one fix (besides replacing the tube) for your set and that is to turn up the screen control. You have to remove the back from the set and on the right hand side there is a large plastic part called a flyback transformer, with a heavy wire coming out of the top which goes up to the picture tube, mounted on the front of this transformer is 2 black blastic "philips type" controls, one over the other look closely and one will be marked focus(do not turn that one) and the other is the screen control, turn the set on and SLOWLY turn the control clockwise until you see a bright picture with white lines in it, once you see the lines turn it back until they disappear, (check several channels to be sure they are gone) your done, may last 3 weeks, may last a year, it`s all you can do, BMW Rider

Dec 14, 2007 | Televison & Video

1 Answer

Sony kv 32s42 32 tv


turn up your master screen control on flyback transformer. if when sceen gos black ,the timer light will be blinking. this means your picture tube is week. by turning up the screen control you may give it more time.

Aug 05, 2007 | Sony KV-32S42 32" TV

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