Sharp 32F640 32" TV Logo

Related Topics:

Gary Boyles Posted on Oct 06, 2006
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Sharp 32F640 32" TV works intermittently

I have a Sharp 32F640 32" TV that works beautifully when it works. Sometimes when turning it on, it attempts to turn on but will not. We can unplug it for a period of time and try turning it on again. Sometimes it will then turn on and sometimes it will not. We live at the beach. Could the moisture or salt in the air be causing this? If so, what can I do to fix it and stop it from occurring?

  • Gary Boyles Oct 06, 2006

    The model is actually Sharp 32F630 not 640

×

1 Answer

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Sergeant:

An expert that has over 500 points.

  • Expert 337 Answers
  • Posted on Oct 06, 2006
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Sergeant:

An expert that has over 500 points.

Joined: Aug 31, 2006
Answers
337
Questions
2
Helped
152104
Points
699

The easiest thing to check is for loose conections because the unit is intermitant,the chassis should be check out for overheated areas and cracked solder joints in the power supply,horizontal driver and all the diodes and resistor off the secondary of the output trnasformer(flyback),if you are familiar with tv service this will help but if you are not too familiar be safe and call for assistance form a servicer.No doubt humidity can damage anything with time.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Our Sharp GA864WJSA TV intermittently turns itself off for a few seconds, then turns itself on again. Please help???

Sharp Aquos problem - YouTube

? 1:41
www.youtube.com/watch?v=-EuJZ9NUf3Y
Apr 24, 2012 - Uploaded by rsimon24
So my tv is just turning off by itself, some people tell that is a software issue, others resistance hardware. Has .
0helpful
1answer

Tv will intermittently not turn on. when i press the on/off switch i hear a click then i hear fans start up - the fans will die down to a steady speed. no raster. press on/off a few times then tv video...

Your Caps on the PSB- Power supply board are on their way out. Pretty soon it won't turn on at all. You will only get the Fault code blinking LED at startup. Recap the UF capacitors on the PSB. Works 90% of the time.
0helpful
1answer

I ve got a sharp aqueos tv i turned oevr channels

Try this: unplug the power cord from the wall, let TV set stand for AT LEAST 30 minutes, then plug back in and and see if the TV operates as normal.
Sometimes this works and sometimes it doesn't.
Good luck !
1helpful
1answer

Sharp Aquos not always starting up immediately when powering on??

I had the same exact thing happen. I think it's related to a failed firmware update attempt after reading a post on the AVS forum of a guy who also had this problem on this TV. What I did is plug back in the USB drive with the firmware update on it that I had used earlier, and the TV started right up.
11helpful
2answers

No sound on Sharp Aquos 37' LC-37D4U

Almost all intermittent audio or audio failure problems with Sharp Aquos LC**D4U, LC**D5U, LC**D6U, and LC**D7U televisions are the result of a relatively simple design flaw involving the heatsink pad compound used on the Tripath TA-2024 amplifier chip (IC2502) found on the A/V board. This compound has a fairly low melting point and, over time, tends to seep out from between both top and bottom heatsinks onto the legs of this chip as well as onto circuitry immediately surrounding it. Further, over time the seeping compound also becomes somewhat conductive creating bridges which short the audio amplifier circuit causing everything from intermittent audio to complete audio failure.

Fortunately, in almost every case audio can be completely restored by cleaning the old compound from both top/bottom heatsinks and from both sides of the PC board in the area immediately surrounding the chip (I used rubbing alcohol which worked quite well). Sharp has issued a service bulletin addressing this issue (LCDTV-194) wherein a ‘2502 Heat Kit’ is specified. This kit is Sharp Part Number: PSPKIT663WJZZ and is available from circuitcity.partsearch.com for $19.95. However, it’s entirely possible to get by with the heat pad only, Sharp Part Number: PSPAZA663WJKZ for only $9.95. Please note that board replacement for this problem is almost never necessary, so if you’re working with a repair technician be sure and insist that he/she be certain to try cleaning the old board and replacing the aforementioned heatsink pads before charging you for a new board.

If one is reasonably familiar with electronics disassembly/reassembly and is willing to take their time, this can even be a DIY project. It is possible to find ‘important service references’ by simply entering LC26D4U (the 5, 6, and 7 series are very similar, and this information covers all screen sizes) into the search field at eserviceinfo.com. This will greatly aid in disassembly/reassembly of the TV, as the A/V board is somewhat ‘buried’ under other boards. Please refer to post # 373 at avsforum.com/avs-vb/showthread.php?t=647174&page=13 for pics of the information detailed here.

Particular thanks are owed ‘Aureius’ of the AVS forums for his research efforts concerning this issue !
0helpful
1answer

Sharp Aquos 32 nch TV, turn TV on, come on & goes off withn 2 sec

You have an intermittent power supply issue. See if you can get a used one on the cheap.
0helpful
2answers

Sharp Aquos LC C3242U - Intermittant Sound Switching from Mono to Stereo

Not sure if I just got lucky or if the problem is solved..I hooked up my Sharp Aquos LC-32D64U the other night and I had the blue audio box pop up. Mine was only in Mono and would not switch to Stereo...Well, Local cable company is of of Hi-Def boxes but I thought what if my Digital box is bad/old or has some sort of problem. I went down to comcast cable company switched to a different digitial box..came home, hooked it up and so far no blue audio box, plus now it shows that it's in stereo..good luck
0helpful
1answer

Sharp LC-30HV4U

I have the same problem with Sharp LC45GD4U intermittant turn off by itself ,somedays working OK..

Thanks.
Tanvo
1helpful
2answers

No sound on Sharp Aquos 37' LC-37D4U

Call Sharp. They are fixing my 18 month old LC40C32U for free.
Not finding what you are looking for?

149 views

Ask a Question

Usually answered in minutes!

Top Sharp Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6688 Answers

matt martin
matt martin

Level 3 Expert

1259 Answers

Are you a Sharp Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...