While ordering the NAND it was recommended that i do the freeze test to verify that the NAND was the issue. Just for kicks and giggles i went ahead and did it as i have never really had the opportunity to do this test. I sprayed the chip while it was rebooting but it keep rebooting. I stopped after 2 minutes. Unplugged the TV and plugged it back in after a minute or two. The TV didnt power cycle at all after that. I was able to get into the menu and everything. Confirmed its the NAND at (foul) play here.
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I believed that's IC1301.
So its possible both with need to be replaced?
Is this a once in a blue moon situation where it needs to be changed too?
I am only seeing IC1302 replacement chips online and no one is bundling both IC1301 and IC1302 together for the repair.
I will order a replacement IC1302 ($30US) and see if that will solve the issue.
If not I'll have to turn my eye to 1301 as you mentioned....
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Trying to Save: Samsung PN59D6500DF - Another one Cycling On & Off
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Found this one about to go to the dumpster.
No info on it other than it wasn't working properly.
When I plugged it up it started right up but after a few seconds I would...Last edited by KYBOSH; Today, 08:34 AM.
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Well in the process of testing I got a bit careless.
With everything connected properly I was not getting proper Vs and Va voltages from the connector at the X-sus leading out to the Ysus,
So i disconnected the harness to the Y-sus and saw proper voltages at the connector leading to it.
Meaning the problem was down at the Ysus or maybe even the buffer board.
So I disconnected both of the buffer boards and tested again.
Unfortunately I absentmindedly didnt bother to fasten the Ysus to the chasis but rather placed the board near where it was supposed to be mounted....
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Thank you for this confirmation!
This tells me that ordering another EEPROM will probably be a waste of time/money as the one I have is okay.
I'll focus my attention on other parts of the mainboard to see what I can see.
I'll also see if its feasible to grab another board somewhere.
Thanks again for all of this. Very educational!...
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Trying to Save - LG 60PH6700 60-inch plasma HDTV - Powers ON but no picture
Saved this beast from the landfill this weekend.
Manfactured July 2013 in Mexico.
I love working on plasma TVs.
Its been a while but I was lucky enough to find 2 this week.
The TV powers on and stays on but no picture. Havent checked for sound yet.
No bulging caps although the insides are pretty dusty and the boards are discolored from many years of high heat.
Will start troubleshooting tonight.
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This morning I went in and tried to figure this thing out but with no success, I uninstalled the old driver, reinstalled it and restarted the computer but the program v2.1.0.13 with unlock feature simply would not allow for selection of the the QE field on the status registers. I have no experience with SR so I dont know what to do or even where to look to try to figure out why.
So i unstalled that set of drivers and reinstalled the drivers for NeoProgrammer (just to be on the safe side) and NeoProgrammer was able to edit the QE field. I redid everything according to [USER="169795"]lotas[/USER]'...
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It occurred to me that there may be a conflict with drivers/software but I reasoned that the chances of this was slim as they were all based off of the same set of files (I assume).
I'll try your suggestion and uninstall files and start from scratch. Im not afraid or weary to try these troubleshooting steps out. If anything we will all be more certain of what's what.
I will try update you guys by tomorrow.
Thank you all. Great insight....
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I did as you instructed. I disconnected the device, restarted the program, changed USB ports, started program with out device attached then reattached the device. It read the same.
I then went in and unchecked everything in the status register (except for #3) which doesnt seem to be editable even when you try to change it. I redid everything but the QE radio button is still grayed out.
When I disconnect the device and look at the edit screen again I see the default generic choices.
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Sorry for the delay.
I'm trying to adjust the status as before but the QE radio button under the Status Register #2 is grayed out and uneditable. Everything else is the same ss the previous program. I'm not able to change the status to "42" without this. And i am using the correct chip profile (CL). What to do?...
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Sorry for the confusion. I used CH314A Programmer v 1.34 by SkyGZ to READ the chip using the BV profile as there was no CL profile available to choose from. I used Lotas' NeoProgrammer to write the fixed file to the chip. The NeoProgrammer has the W25Q40CL profile in it and that's the one i used to write back to the chip. Do you suspect using the software you provided will still make a difference?...Last edited by KYBOSH; 10-14-2024, 10:32 AM.
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The previous owner likely didnt try anything relating to the mainboard.
When I picked it up he had a spare power supply which he tried to install thinking it was a PSU issue.
Heatsink also looks like it was never removed until i pulled it off so no way to access the IC.
I have checked the chips read/write function with the programmer and nothing seem suspect about it.
ShopJimmy sells the EEPROM with the firmware preinstalled ($15US) so I may order it and see if that helps.
If anything then i will have a known good dump for the repository....
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Not working yet.
Red status light is on.
When i press the power button on back of TV the status light fliashes once and then no response after that. Display never attempts to turn on. Same when I try with the remote. initial flash of red status light then no more response.
i reflashed the chip just to make sure. Status registers confirmed changed.
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"500","title":"17288611346578814945563023395882.jpg","width":&qu...Last edited by KYBOSH; 10-13-2024, 05:12 PM.
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excellent instructions
oy issue is a few things have changed in the versions you are referencing but i am able to follow along.
Major problem is with the status register part.
Options are totally different from your picture and description.
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