Hi.
Have the dreaded clicking TV on power on, but it will EVENTUALLY turn on and otherwise works ok.
I've already taken it all apart once, and the 4 1000uf 25v caps were obviously blown.
We've already replaced these with 1000uf, 25v, 105°C - unknown brand, it's what my Brother-In-Law had in his kit.
Having looked online it seems that the repair kits for this revision contain 9 caps, the 4x 25v that I've already replaced, plus 5x 10v that "looked" ok.
I'm planning on getting decent Japanese caps and replacing the lot, but I do have 1 question...
Should I up the v rating?
Should I put 16v or 25v in place of the 10v? And 35v or 50v in place of the 25v?
I was planning on 16v and 35v - but then I stumbled across the minefield that is ESR, and don't know if the increased voltage capacity would cause an ESR issue in this instance. I'm assuming that as the Samwha WB series are supposed to be low ESR, that shouldn't be an issue.
I believe this is the correct Datasheet: https://cdn.badcaps-static.com/pdfs/...e01af2af63.pdf
I've also found this parts list: https://cdn.badcaps-static.com/pdfs/...6a12f5e38f.pdf
I'm presuming the NXB is a newer line? They're not solvent-proof like the WB are... Anyway, I found their sheet too: https://cdn.badcaps-static.com/pdfs/...82f02d80b8.pdf
I'm not used to datasheets, but if I'm reading this correctly, then the specs of the caps are as follows
Looking at those specs - if I were to stick with Samwha WB- then the 16v in place of the 10v and the 35v in place of the 25v should pose no issue physically. The lead spacing on all of them is 5mm too (which if I go up to 50v changes!)
The NXB 16v ESR matches the 10v, the WB 16v is lower. The NXB 35v ESR is higher than the WB, but still lower than the 25v.
There is probably enough space to replace them all with the larger physical size.
I'm not sure about the other caps in that area - 3 look to be more WB series, but 470uf 50v. As for the 1 with the black top - it's not black, it is actually silver - it's just the reaction to the flash combine with its angle. It's probably the same as the others, but I can't tell without taking it out again.
I have 1 further query...
I have found this: https://www.justanswer.com/tv-repair...-clicking.html
I note in this reply, and in some of the repair kits offered on the bay of e, the IC IC1803 (AT24C256) is suggested to be replaced, and that this is an EEPROM.
The TV does work normally once it eventually starts, so I don't think this needs replacing - but if it did, does it need to be programmed or pre-programmed? Or is that all done by the TV itself during setup?
TL: DR ?
Have the dreaded clicking TV on power on, but it will EVENTUALLY turn on and otherwise works ok.
I've already taken it all apart once, and the 4 1000uf 25v caps were obviously blown.
We've already replaced these with 1000uf, 25v, 105°C - unknown brand, it's what my Brother-In-Law had in his kit.
Having looked online it seems that the repair kits for this revision contain 9 caps, the 4x 25v that I've already replaced, plus 5x 10v that "looked" ok.
I'm planning on getting decent Japanese caps and replacing the lot, but I do have 1 question...
Should I up the v rating?
Should I put 16v or 25v in place of the 10v? And 35v or 50v in place of the 25v?
I was planning on 16v and 35v - but then I stumbled across the minefield that is ESR, and don't know if the increased voltage capacity would cause an ESR issue in this instance. I'm assuming that as the Samwha WB series are supposed to be low ESR, that shouldn't be an issue.
I believe this is the correct Datasheet: https://cdn.badcaps-static.com/pdfs/...e01af2af63.pdf
I've also found this parts list: https://cdn.badcaps-static.com/pdfs/...6a12f5e38f.pdf
Code:
Vendor | Product | IP/SMPS | Location | CAP | CAP | Part Spec | SIZE | SVC Part | | Part CODE | | Vendor | Series | | | CODE -------+---------+-------------+-------------------------------+--------+--------+------------------------+-------+------------ HANSOL | S-IP | BN44-00150B | CM802,CM803,CM807,CM808 | SAMHWA | NXB | 1000uF 25V 105°C 10*20 | 10*20 | BN81-02020A HANSOL | S-IP | BN44-00150B | CS804,CS805,CS806,CM812,CM813 | SAMHWA | NXB | 1000uF 10V 105°C 10*16 | 10*16 | BN81-02017A
I'm not used to datasheets, but if I'm reading this correctly, then the specs of the caps are as follows
Code:
WB 10 v 10.0 Ø x 16.0 mm 0.038 Ω NXB 10 v 10.0 Ø x 16.0 mm 0.038 Ω WB 16 v 10.0 Ø x 20.0 mm 0.027 Ω NXB 16 v 10.0 Ø x 16.0 mm 0.038 Ω WB 25 v 12.5 Ø x 20.0 mm 0.025 Ω NXB 25 v 10.0 Ø x 20.0 mm 0.025 Ω NXB 25 v 10.0 Ø x 25.0 mm 0.022 Ω WB 35 v 12.5 Ø x 25.0 mm 0.018 Ω NXB 35 v 12.5 Ø x 20.0 mm 0.021 Ω NXB 35 v 12.5 Ø x 25.0 mm 0.020 Ω
The NXB 16v ESR matches the 10v, the WB 16v is lower. The NXB 35v ESR is higher than the WB, but still lower than the 25v.
There is probably enough space to replace them all with the larger physical size.
I'm not sure about the other caps in that area - 3 look to be more WB series, but 470uf 50v. As for the 1 with the black top - it's not black, it is actually silver - it's just the reaction to the flash combine with its angle. It's probably the same as the others, but I can't tell without taking it out again.
I have 1 further query...
I have found this: https://www.justanswer.com/tv-repair...-clicking.html
Originally posted by TV Technician: ziane Hassan
The TV does work normally once it eventually starts, so I don't think this needs replacing - but if it did, does it need to be programmed or pre-programmed? Or is that all done by the TV itself during setup?
TL: DR ?
- Can I use higher voltage/lower ESR caps?
- Do I need to change IC1803?
- Does it need pre-programming
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