Sanyo DP50719 Plasma Turns On & Off w/Clicks

[barryra]

I am working on a Sanyo DP50719 plasma where it turns on with a light grey screen (no image) then shuts off about every 15 seconds & then powers up then cycles over & over. There is a green light on the front & on one of the boards which is on & off when the tv cycle. Thanks for any help.

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Hey believe it or not I have the same problem with the exact same TV

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

I had to replace the X sustain board before I could get to your situation though. Now it turns on with same problems as yours. Before the newer X was replaced, the TV would cut off in 3-5 seconds. (cut off due to bad board). I also noticed that when I disconnect the Main Board (not the main logic) from the Main Logic board, that the TV stays on regardless.

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Sorry for all the posts, but I am new and we NEED pictures (from my experience on the forums), correct me if these pictures are not the same as your TVs insides. If so I will start a different thread.

And to clarify, when he says the screen lights up grey, it does but if we press volume up/down or channel up/down we (I think) don't get any reaction on the screen from these actions.

We need help! I have seen online where it could be logic board or main board issues

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

After some more checking, the board that I believe to be the X sustain board on the far right... it's heatsink does not get hot or warm, think I could have gotten a bad X sus from shopjimmy?

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Can connect the Main and Logic board back up when the tv is powered on and it will go back into original problem cycle. 15-20 seconds of on with no picture, then shut off and come back on..

[cliff_hootarski]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

http://www.coppelltvrepair.com/p/56/...repair-service

This may be a cure to your problem.

[zdsh07p9]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Anyone had this same problem? I have a different mainboard instead of the one listed, I have J4FH

[fxdfireman]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

I have the same problem with the same set. Turns on for 10-15 seconds then off for 2- 3 seconds and repete. Does anyone know what goes wrong on the main board? I see people offering to repair the boards, is the a common component that goes bad that i could do the repair myself?

[fxdfireman]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

I am going to go through the caps tonight. Is there anything else i should be checking?

[fxdfireman]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Does anybody have any ideas what goes on these main boards? I would like to try fixing myself.

[fxdfireman]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Does anybody have any ideas?

[Peter Chiu]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Hi!!! This is the problem!!!


Sanyo Service Tip
USIK / YX6E CHASSIS
07/27/12
If the power LED on front of the TV is turning ON for 10-20 seconds, OFF for
SYMPTOM:
1-2 second and keeps repeating, the problem is most likely IC5750A. Affected models are
the 2009 & 2010 TVs (LCD and Plasma) listed.
IC5750A is located under the large shield. IC 5750A is a 48 pin NAND FLASH IC with
easy access for replacement. This will fix +80% of the boards with the symptom below.
Sanyo Part Number: QXXAVD058- - -M
Chassis IC 5700 IC 5700
Version Samsung Quimonda
P37819-00 SW84 SW82
P42849-00 SW84 SW82
P42849-01 SW84 SW82
P42849-02 SW84 SW82
P42849-04 SW84 SW82
P42849-05 SW84 SW82
P46849-00 SW84 SW82
P46849-01 SW84 SW82
P46849-02 SW84 SW82
P46849-03 SW84 SW82
P46819-00 SW84 SW82
P50749-00 SW84 SW82
P50749-01 SW84 SW82
P50749-02 SW84 SW82
P50749-03 SW84 SW82
P50719-00 SW84 SW82
P52449-01 SW85 SW83
P42840-02 SW84 SW82
P42840-03 SW84 SW82
P42840-04 SW84 SW82
P46840-01 SW84 SW82
P46840-02 SW84 SW82
P50740-01 SW84 SW82
You must use the 3
dashes when ordering
this IC.
If the power LED on front of the TV is turning ON
SYMPTOM:
for 10-20 seconds, OFF for 1-2 second and keeps repeating, the
problem is most likely IC5750A. Affected models are the 2009 &
2010 TVs (LCD and Plasma) listed.
IC5750 to be replaced
Check IC manufacture for either Samsung or Quimonda
The IC 5750A you receive will have software 84 installed in it. If
IC 5700's manufacture is Quimonda or TV is a 52" then the
software will need to be changed with the use of a USB drive.
Note : Only use this software in the Sanyo TVs listed.
If used in wrong chassis, it could cause TV not to come
on and IC 5750 will need to be changed again.

[Peter Chiu]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

LINK is here:::::

[Peter Chiu]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

IC5750 needs to be replace. : )
Hynix HY27US08561ATPCB HY27US08561A-TPCB TSOP48 IC Chip
Flash NAND 256Mb (x8) TSOP 3V

And U need to Program it. : (
http://www.ebay.com/itm/TNM-2000-USB...item4ac97178bf

[pkasongo]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Has this fix worked for anyone? I'm having the same issue need to confirm before purchase. Also I saw that someone said there was a need to reprogram?

[pkasongo]

Re: Sanyo DP50719 Plasma Turns On & Off w/Clicks

Has this fix worked for anyone? I'm having the same issue need to confirm before purchase. Also I saw that someone said there was a need to reprogram?