Question about Flat Panel Televisions

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  • 1635 Answers

SOURCE: Sanyo Plasma Service Manual

The only source would be Sanyo. They can refer you to their parts sales rep for your area.

Just to make a suggestion, there is not much you can service in these sets. Some of these service manuals can cost upwards of $60 to $150 depending on the manufacture and model.

Servicing at the component level without the training, extensive diagnostics systems, jigs, and tools is mostly impossible unless it is a simple obvious fault. These sets are extremely complex in their assembly and design.

At the service centers they service these sets by board and module swapping. These sets are basically serviced like as if it was a PC computer. They have the basic calibration setups to calibrate replacement boards when necessary. Sometimes the new boards have to be matched.

I also found that if the set is more than about four to five years old it is sometimes impossible to have replacement boards. The technology turn-over is very fast with these flat panel TV sets and monitors.

Jerry G.

Posted on Nov 08, 2008

  • 60 Answers

SOURCE: No digital channels

  1. Cable company sending something through the line. Also th insigna has a different tuner. Also can the insignia find the digital channels using an antenna?

Posted on Aug 23, 2009

Testimonial: "Thanks. I resolved it by removing a splitter from being in line with the cable itself."

  • 834 Answers

SOURCE: No Channels found after scan for new channels

was it working before ?
Are you on cable ? run your scan in cable mode
Are you on an Antenna run your scan in air mode

Posted on Dec 04, 2009

  • 736 Answers

SOURCE: I am setting up my proview pa-32jk1sa, for the

chances are that your reciever is outputting conventional NTSC .. not high def ... so you would scan for standard channels not hdtv .. if chanel selection is done by the satelite reciever then the scan will only find one channel 3 or 4 usually (or better yet you can use Svideo or component oututs if it has them .... if the receiver is a block converter that uses the tv to tune channels then you should get more channels detected ..

Posted on Jun 24, 2010

  • 6 Answers

SOURCE: my sanyo plasma flat screen tv will not come on....

For what it's worth, you can download the official Sanyo repair manual for this TV (DP42746) at I uploaded it here when I had some issues with this TV last year. The solution almost always seems to be to replace the Power Board and the Upper and Lower Y Buffers. The parts and costs (from Sanyo in July 2009) are listed below (NOTE: Sanyo will not ship these parts to anyone but a repair shop):
1. V4 Y-Main (Y-Sustain) Circuit Board (Part # LJ92-01200A, Alt Part # LJ41-02759A) - USD $139.00
2. Upper Y-Buffer Circuit Board (Part # LJ92-01202A, Alt Part # LJ41-02760) - USD $64.00
3. Lower Y-Buffer Circuit Board (Part # LJ92-01203A, Alt Part # LJ41-02761A) - USD $64.00
Sanyo charges USD $10.50 for shipping, which brings the total cost for parts to USD $277.50. From my research, a shop would probably charge between USD $500 and $700 to do this repair. FYI - there is a class action lawsuit pending against Sanyo for this issue. The V4 Y-Main (Y-Sustain) Circuit Boards fail VERY frequently in this TV due to overheating. Hope this helps.

Posted on Aug 07, 2010

  • 78 Answers

SOURCE: lg 50pc3d plasma tv will not hold channel/tuning

back up memory has a small battery ....this needs to be replaced,.

Posted on Oct 23, 2010

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Hooked up my TV and ran channel scan. Why didn't I find any channels?

Main system control memory IC fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts.

Apr 22, 2016 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Ran channel scan. Why didn't I find any channels?

Did you connect an antenna to the TV? It would need an antenna in order to receive channels over the air.

Apr 22, 2016 | Sanyo DP42746 42 in. Plasma Television

1 Answer

How do I go back to Digital add on search when my boyfriend scanned for the analog channels. Sanyo TV model # dp42545

Usually you have to go to chanel setup and scroll down to DTV setup up or DTV auto tuning and click on the remotes enter button and choose to scan for the Digital channels (DTV) Then tell your boyfriend that they don't broadcast in analogue anymore.

May 09, 2015 | Sanyo Flat Panel Televisions

1 Answer

My Sanyo TV won't scan every channels that my other TV's scan!

check weather some of your channel was deleted in the program. just add those channel so you can make auto scan programs.

Oct 07, 2012 | Sanyo DP46849 46 in. HDTV

1 Answer

Hi - I have an older model Sanyo 14" tv (?1994/5) that has probably less than 100 hrs use -- Model #DS13530 - the channel does not hold to a specific set - it wants to continuously scan through all...

This sounds like a capacitor fault, although I would not know which one. Most likely in the power supply. You Could try switching on and leaving on for a little while, ie about two or three hours. This may charge this capacitor up.
Alternately, you should take it to a TV engineer to have it fixed.
Hope this helps.

Apr 14, 2011 | Sanyo Flat Panel Televisions

1 Answer

Sanyo DP42410. Everytime i turn the tv on/off it's like i'm plugging it in for the first time. I Have to set up Home or Store, etc. All the settings. We just got the tv. Set everything up, and when we turn...

I had to call Sanyo on this same problem, and I just wanted to help you out on this. When you turn on the the TV and it asks for home or store, chose home then do the channel scan. After the channel scan completes, switch to your tv source, hdmi1, then turn off the tv and back on and it should just go straight back to hdmi1. Let me Know if this works!

Dec 26, 2010 | Sanyo 42 in. LCD TV

1 Answer

Sanyo model #dp42746

Change your channel till it reads D 03-01 then use scan feature.

Mar 27, 2010 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Sanyo Plasma DTV turns it self on

No solution sorry but i have a problem too... I usually watch my tv on "dtv" now it just went black no channel is working it automatically went to "ATV" where the channels are fuzzy and my extra channels aren't working. I tried scanning on "DTV" for all the channels but automatically scanned and defaulted back to "ATV". Does anyone know how to fix this?

Mar 26, 2010 | Sanyo Flat Panel Televisions

1 Answer

How do i get the digital channels, i have reset the tv but it will not show the digital channels that my Vizio will show.

Look at Remote menue see if you can do a scan for channels. Once it collects the information it will save the channels. You need to have it SCAN for digital signals.

Nov 09, 2009 | Sanyo DP42746 42 in. Plasma Television

2 Answers

I need to hook up to digital cable

Connect the cable to your TV's antenna input jack. Through the TV setup menu, perform a digital cable search. This is a separate operation from the full channel scan. The TV manual says this may take up to 10 minutes, so be patient. The set should find the channels on your system. When you want to watch TV, press the INPUT button on your remote to select Digital RF as the source. Press INPUT again to select any other source (DVD, etc.) you have connected when you want to watch that.

I was wrong about needing a converter. This TV has a tuner that can pick up the cable channels if they use a system called QAM. Verizon says QAM-capable sets don't need a box for non-scrambled or premium channel, so you should be good once you have the TV scan channels.

I couldn't find the DP26648 manual at Sanyo's site, so my solution is based on the DP26647 manual. They should be similar. You can download the manual here if you don't have the manual for your set.

Apr 01, 2009 | Sanyo DP26648-R 26 in. LCD TV

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