Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

[newwavebossanova]

I happen to be starting the process to replace my EEPROM so made the measurements. Haven't replaced the EEPROM yet. I measure R19 = 3.76 kOhm and R20 = 4.70 kOhm

To close the loop, I messed up. Long story short, I lost an IC pad and got solder onto where it should be so I think I'm hosed.

Tips for beginners like me (I learned soldering only because of this EEPROM problem) so you don't make the same mistake:

• Watch this vid, go to 3:00, notice how there's solder behind the leg (the heel as the video calls it). Remember to get this spot when trying to de-solder the original chip. Also just watch the entire video; it's good info for how to solder on the new chip
  • https://www.youtube.com/watch?v=Nq5ngauITsw
• Don't crank up your solder past the average setting (mine defaults to 350C)
• Don't apply too much heat or for too long on the IC pads to the point they loosen and you lose one of them like me

Long story: Started poking at the legs of the EEPROM with the soldering iron and trying to pull out the chip with tweezers. I was like, I don't see anything moving, so bumped up my iron to its max (500C), still nothing. I was poking all around the leg until I finally saw a leg pop off and realized that spot behind the leg (like in the video which I watched beforehand but didn't put two and two together) what I was missing. I proceeded to get the iron behind each leg, easily popped off the chip, then started cleaning up with an air duster. But I didn't realize somewhere along the way I lost one of the IC pads. When I tried tinning the remaining pads to prep for the new chip, I tried tinning the missing spot and saw a lot of smoke, but no flux. Then I realized that pad was probably important. Whoops.

Edit: I was afraid of accidentally touching other components after reading PCS' post so I was using a super thin tip head for the iron which probably didn't help with heat transfer. So maybe use a bigger tip for removal so it can maybe heat everything up enough that you don't need to worry about the heel, then switch to the thin tip when soldering on the new chip

[newwavebossanova]

Hi guys, has anyone got the resistor values? Or can read them with a multimeter for me? R19 & R20.

included pics of how it was when I received it, second pic pads Disintegrated Think they used a shovel to solder it but I’ve cleaned up as best as I can and temporarily wired eeprom on pigtails but tv no sign of life then noticed id lost a resistor and the other I can’t get a reading


Regards, Rich

I happen to be starting the process to replace my EEPROM so made the measurements. Haven't replaced the EEPROM yet. I measure R19 = 3.76 kOhm and R20 = 4.70 kOhm

[PCS_]

Hi guys, has anyone got the resistor values? Or can read them with a multimeter for me? R19 & R20.

included pics of how it was when I received it, second pic pads Disintegrated Think they used a shovel to solder it but I’ve cleaned up as best as I can and temporarily wired eeprom on pigtails but tv no sign of life then noticed id lost a resistor and the other I can’t get a reading


Regards, Rich

[rob3rt87]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

In my case, a message appears that they are not matched. What to do? Could it be the fault of the chip. Is it the fault of bad software? I was using version 1.17.

[mmartell]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

I did.

Reprogrammed another MX25L6406E from Digikey and set is again working.

Would not auto-detect the correct ic had to choose it manually. Then when I opened the .bin I had an error about it being too long and the rest would be ignored blah blah. Don't recall that error the first time ? However when it is read the saved file matches the .bin. Go figure.

[rob3rt87]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Sorry for digging up. I have a ch341A pro programmer and a MX25L6406E chip. The problem is that the program says that the bios file is too large. Any of you have had this problem?

[betikt]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

thanks to the BIN file supplier zhaojun297
so good luck!!

[wegosan]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Hello everyone I hope you still have an answer in the forum

I have changed epprom and regulators everything well
TV turns on but lasts 1 hour or 10 minutes
I have seen that if I put heat gun components

These 2 components are causing it to turn off at the min

Serie original mp3399ef
Serie en internet mp3399ef-lf

https://ibb.co/gyqmQBn

which voltage regulator did you use: 1117 - 3.3v, or 1117 - 5v?: eek:

[angelstak]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Hello everyone I hope you still have an answer in the forum

I have changed epprom and regulators everything well
TV turns on but lasts 1 hour or 10 minutes
I have seen that if I put heat gun components

These 2 components are causing it to turn off at the min

Serie original mp3399ef
Serie en internet mp3399ef-lf

https://ibb.co/gyqmQBn

[davy2002a]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Situation: I completely lifted/torn a pad and it's trace for resistor R21, which leads to pin 7 (HOLD#)

Since then attempts have failed to yield decent results, first time I ran a trace using copper wire to that resistor it would boot fine and run for a solid ~45mins then power down with the standard red flashing, now -- in my attempt to rectify the situation by adding more strands of wire/etc the resistor came right off and is now completely lost, would anyone be able to tell me precisely what the resistors value is so I may order another one? At present the system will not boot at all, black screen (no LED backlight or anything) and the usual red blink of death, I have attempted several different resistors with obviously no success.

[yonosoychevere]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Yes i did it!!! i have repeared my playstation 3d display!
so you need :
1.new chip MX25L6408E
2.programmer:EN25T80
3.SOP8 to DIP8 Adapter addapter
4.software ch341a
5.bin file:U4 25L6406E.bin
i flashed the new chip, then placed it om main board, insted of the old chip.
then powered on and it run my 3d display!!!! it works!!yes!! good work...
thanks to the BIN file supplier zhaojun297
so good luck!!

I have the same issue at this very moment, but as a hardware i achieved the CH341a to program the MX25L6406E. can i have possitive results with this or i need only the EN25T80 to make it work good?

[Sorgens]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Your procedure sounds good however of those who have replaced the eeprom (including myself) instead of just reprogramming the old one I'm unaware of any that have failed again. So I would just reinstall it and move on.

Good, thanks!

Yes, I have it set up and running. The last time I used this monitor was ~4 years ago, March 2012. I am finally able to use it again.

I bought a new eeprom and replaced it. I also bought a cheap laptop cooling pad, removed the fans and set them up on the back right on top of the circuit board.

So if no one else who has done this has complained about the eeprom failing again, I am extremely happy. I still have 4 more eeproms in case I even need to replace this one.

Thanks!

[mmartell]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Your procedure sounds good however of those who have replaced the eeprom (including myself) instead of just reprogramming the old one I'm unaware of any that have failed again. So I would just reinstall it and move on.

[Sorgens]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Hi,

Sorry for necroing. As some others in this thread, this is my first attempt at electronics. I know enough to go by, but not enough to answer my own question.

I already figured out how to program the eeprom, and got rid of the old one. I am ready to put the new flashed eeprom on the pcb. However, I am wondering about what I have read of the Write Protection (Pin 3).

Is it safe to lift that pin to avoid having the eeprom getting corrupted? Do I need to turn on the TV once, set it up with my settings, then turn off and lift pin 3?

Or should I just let it be until it fails again?

Thanks

[notsogentle]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

I had two red flash of death also. I lifted pin 3 as shown in photos and TV has been working since.

I get a blank screen for 1 second every once in a while.

I get RFOD sometime powering on, but disconnecting AC for a minute and it starts up again.

I've ordered a new chip, since I know this fix can't possibly be permanent, but I'm happy I can use my TV until it arrives.

cheers

[mmartell]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Reprogrammed another MX25L6406E from Digikey and set is again working.

Would not auto-detect the correct ic had to choose it manually. Then when I opened the .bin I had an error about it being too long and the rest would be ignored blah blah. Don't recall that error the first time ? However when it is read the saved file matches the .bin. Go figure.

[mmartell]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Failed again after MAYBE thirty power cycles. Will order a new ic and try again.

[OneMeanDragon]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Have to find a reprogrammer yet, unless I can build one lol

[mmartell]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Reprogram the one you have if you haven't tried already.

[OneMeanDragon]

Re: Sony CECH-ZED1U Playstation 3D LED TV - Two Red Flash

Besides eBay anyone know if there is any local electronic hobbie stores that would carry this eeprom in Ontario.
I've gone as far as to rip the video board out to search for bad welds but found none then came across this message board the other day.