Top 10 Sanyo DP32746 32 in. LCD Television Questions & Answers

I have this tv as well with the same problem. From the research I've done, one of the 16 ccfl's(backlight bulbs) goes bad and they all will not come on then. I have not been able to find a replacement ccfl for this particular tv. The ccfl size if 3mm x 711mm. I have a feeling the scope of this problem is very large with this particular tv and this forum represents the tip of the iceberg. Sanyo unfortunately makes a piece of junk and we have that piece of junk sitting in our homes with no good solution other than to say, dont waste your money on another Sanyo tv.

Easy way to Diagnose is get a known good CCFL from a laptop or LCD TV and start plugging it in to the existing Cathode's Ports one at a time. Generally its a bad CCFL on these multiple units.. (2,4,6) Bulbs.. Moniserv.com for replacements.

Goodluck guys!

I had this same problem this morning. Luckily, when I reset the whole thing and did the channel search again the sound returned. I have no idea why it fixed it but it did. Hope this helps you.

you can order a replacement off of the website

Hi,

i think but im not sure but its worth a shot. turn the tv on then press and hold the power and action button on the set for 5 or 6 seconds this should reset the television and run a diagnostics test proceedure

Regards
Xeeshan

If you leave the tv unplugged for 2 days (atleast) then plug it back in and try to turn it on and if it comes on its the power supply board. If it comes back on it will probably shut off between 30min to 4hrs and you would have to unplug it for 2 days again. All the power needs to drain out of the tv. If thats the case take the back pannel off and check the part number out on the internet. Not hard to do becarefull touching things the power supply does store a little bit or shock in it. Good Luck.

When DP52449 (chassis 01 - that is important!) does not power on and the front LED flashes every 15-20 seconds you have a faulty main board, which you need to replace or get serviced.

We presently do not offer replacement boards, but we do offer repair services for them at
http://www.coppelltvrepair.com/p/59/sanyo-dp52449-p52449-01-main-board-n7ke-repair-service


You may also be curious to read the article we wrote back in July 2012 on a problem that sounds exactly like yours and which lead to the service offerring:
http://blog.coppelltvrepair.com/2012/07/sanyo-dp47460-dp42840-dp46819-and.html

Hope this helps!

just go to sanyo service center to buy a new remote control, to fix your problem

What you need is a replacement or repair of the main board N7KE.

You can find the later here:
http://www.coppelltvrepair.com/p/59/sanyo-dp52449-p52449-01-main-board-n7ke-repair-service

For some background of the same problem read here:
http://blog.coppelltvrepair.com/2012/07/sanyo-dp47460-dp42840-dp46819-and.html

Audio but there is no picture or brightnessThis is a common issue in many LCD or Plasma sets and it does not have a common solution. In most cases you need to first check for missing voltages on the power supply board and for damaged filter caps there. If good voltages exist then look elsewhere.LCD (not projection) sets often use a back light to provide the light source for the screen unit (display panel) so confirming that the voltage for those is first-if the back lights are being used but not on it is either no voltage, not being turned on by the set, or bad light unit/s.In these sets there are also boards that "Drive" the panel itself. Usually the set will use two boards (some combine both into one large board---names vary but are Inverters, Y-boards (Y means video) T-con boards etc. Usually in this case only one half of the screen will be black but it is possible for it to cause a total loss of brightness also.Plasma sets are similar to some degree but with no back light in most cases.Trouble shooting can be tedious and expensive-Taking one of these sets apart requires some skill as one wrong move and the Display panel can be instantly damaged which is fatal from a repair cost point of view.Other possible solutions include but are not limited to physical problems---loose plugs or connections between boards (look for any plugs held down with tape where they plug into a board). A lot of people with problems play the guessing game-buy and try a board after research which can get expensive and may not fix the set---To gamble or not?I have seen sets where every single board was replaced and set still did not have a picture-means display panel is the problem.The problem can even be the "main" board in some cases -it controls the communication with the panel and if faulty can cause issues.Aside from checking voltages, connections etc. there are a few other considerations---The problem can be the display panel itself---Part cost for that is more than the set cost when new.The panel connects to the boards that drive it with either a multi-pin conventional plug or a RIBBON CABLE.The worst case is if the problem is a ribbon cable etc. bad or damaged INSIDE the panel where it cannot be got at.That means if the case set would cost too much to repair.The connectors where the cable attaches outside of the panel can also develop dirty or loose connections.Fans in units that use them can be an issue if dirty or not moving.As you can see (or not if no brightness) the problem sounds simple but has many possible different causes.Let me know if you have questions as I am here to try to help.SD TECH