I’d like to talk about a very specific failure affecting Sony Bravia LCD TV with chassis EX-2N. This is the model list:
KDL-37S5500
KDL-40S5500
KDL-37P5500
KDL-40P5500
KDL-32S5600
KDL-37S5600
KDL-40S5600
KDL-32P5600
KDL-37P5600
KDL-40P5600
KDL-32P3600
KDL-37P3600
KDL-40P3600
The symptom is clear: plug the TV, it goes to green LED, nothing happens on screen, and after about 30-35 seconds, a relay double-clicks and the cycle starts again, forever.
This problem occurrence peaked on 2012, and it was supposed to happen due to firmware bug triggered by a specific DVBt emission. After that year, almost no more cases (in my Spain area). In recent years, I’ve encountered a few cases, perhaps related to Flash corruption for similar or other reasons.
Good news are that if your TV is one of listed above and it shows described symtom, it has good chances of being repaired without even opening the TV, by just applying steps described in Sony bulletin 12TV026. Bad news are that you’ll need Sony TL3 proprietary jig, which is not available for sale. Then, there’s no other choice than replace NAND Flash with one properly programmed for required model (IC4701).
After applying 12TV026 bulletin, a firmware upgrade to 5.167 is required. And that’s all!
I’m the lucky owner of a TL3 and I’m able to fix these, as long as they have no other problems or flash wear problem.
I’ve attached original 12TV026 bulletin describing the recovery process. I also attach a terminal log file of a KDL-40S5600 affected by this issue, before recovering. The log is taken through TL3 jig and terminal software. I don’t attach boot files because they’re more than 150MB.
What’s the point of this thread? Perhaps to unify in a single topic all flash problems related to listed models. Perhaps someone can offer pre-programmed Flash ICs for these models. Or an open alternative to TL3 jig? It doesn’t look very complex to me, a FTDI 232-to-USB IC, 4 switches and a few more small ICs.
KDL-37S5500
KDL-40S5500
KDL-37P5500
KDL-40P5500
KDL-32S5600
KDL-37S5600
KDL-40S5600
KDL-32P5600
KDL-37P5600
KDL-40P5600
KDL-32P3600
KDL-37P3600
KDL-40P3600
The symptom is clear: plug the TV, it goes to green LED, nothing happens on screen, and after about 30-35 seconds, a relay double-clicks and the cycle starts again, forever.
This problem occurrence peaked on 2012, and it was supposed to happen due to firmware bug triggered by a specific DVBt emission. After that year, almost no more cases (in my Spain area). In recent years, I’ve encountered a few cases, perhaps related to Flash corruption for similar or other reasons.
Good news are that if your TV is one of listed above and it shows described symtom, it has good chances of being repaired without even opening the TV, by just applying steps described in Sony bulletin 12TV026. Bad news are that you’ll need Sony TL3 proprietary jig, which is not available for sale. Then, there’s no other choice than replace NAND Flash with one properly programmed for required model (IC4701).
After applying 12TV026 bulletin, a firmware upgrade to 5.167 is required. And that’s all!
I’m the lucky owner of a TL3 and I’m able to fix these, as long as they have no other problems or flash wear problem.
I’ve attached original 12TV026 bulletin describing the recovery process. I also attach a terminal log file of a KDL-40S5600 affected by this issue, before recovering. The log is taken through TL3 jig and terminal software. I don’t attach boot files because they’re more than 150MB.
What’s the point of this thread? Perhaps to unify in a single topic all flash problems related to listed models. Perhaps someone can offer pre-programmed Flash ICs for these models. Or an open alternative to TL3 jig? It doesn’t look very complex to me, a FTDI 232-to-USB IC, 4 switches and a few more small ICs.
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