Question about Sanyo 39" LCD 1080p HDTV - TVs & Home Theaters

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2 year old sanyo led tv has no picture,what is wrong?

Power on ,no picture , just black screen

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  • Sanyo Master
  • 2,485 Answers

Check for open circuit in the main mother board.

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

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Sanyo DP46142 TV comes on for approximately 30 seconds and then screen goes black. Power LED stays on.


Sounds like a backlight problem to me. If you input a signal to the HDMI or Composite input and then it goes black have you tried taking a flashlight to the screen to see if the picture is still there but just dark? That would indicate a backlight issue. That model appears to be an LED edge lit backlight, so if the picture is still there after going black your going to have to trace out the backlight circuit and see whats going on. Usually with LED backlighting if it comes on at all then the LED's are good, its just the driver supply thats failing to keep them on. Some TV's have a small separate board that provides the backlight control, but i suspect with this model its on the power supply board and not the motherboard. Have you checked that board? It could be bad caps on the power supply board, check the voltages to the backlighting when it lights up and then when it goes dark. It could just be some failed capacitors on the power supply causing that voltage rail to drop off.

May 04, 2017 | Sanyo Televison & Video

1 Answer

TV has audio but no video. Replaced LED driver but didn't fix it. What else could it be?


TV fuses go out like mines and can hear the cable but see no picture..

Apr 03, 2016 | Sanyo 32" LED HDTV DP32242

1 Answer

51" sanyo no picture


If your LCD TV or monitor has stopped working, or is displaying one of the following
symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can
examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life
of your monitor or TV by several years.

Apr 05, 2014 | Sanyo Televison & Video

1 Answer

My 42" Sanyo LCD TV which is 4 years old no longer


This is not a user repairable fault. Should be checked from its main power regulator board, and is a skilled work. Actually this is a repairable fault, but can do only by any technicain.

Jul 11, 2013 | Televison & Video

1 Answer

I have an old Sanyo 28" CRT widescreen TV. It works fine in PAL-50hz but when in PAL-60hz the colour constantly changes from colour to black & white and back again every few seconds.


I think the message is in your message - "old Sanyo CRT" (or old anything CRT, no discrimination towards Sanyo intended)
It's not LCD screen snobbery on my part either. I've a Panasonic 28" CRT I got new for £49 in a clearance only two years ago. OK it was a 2007 model but unused.
That will see me along nicely to avoid an LCD TV, I'll go for projection or LED screen when the Pana. dies.
However, this aint' getting us further along with yours.
Why do you need it to be in 60hz mode?
Is this something to do with viewing a USA NTSC system linked device?

Sep 24, 2011 | Televison & Video

1 Answer

No picture, no sound.


contact sanyo, sounds like your display panel has gone bad

Sep 08, 2009 | Sanyo DS31590 31" TV

2 Answers

Screen went black


Check the power supply for 12 volts dc, it must provide at minimum 3 amps of power to trigger the on circuit. If not, replace the adapter... if you need one, please contact me.

Jan 12, 2009 | Sanyo CLT2054 20 in. EDTV-Ready LCD...

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