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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Philips IC SMPS "cold side controller" P/N 612771-1 ?????????????? Philips
My brothers PTV crashed and one of the SMPS
controller IC's appears to be bad. The hot side controller IC P/N 612664-2 I have identified as a Motorola MC34056 But I can't seem to find any info on the cold side controller P/N 612771-1 Anyone know what the Motorola equivalent for this part is? (or any other equivalent for that matter) Or, I'd even settle for a tip on where I might be able to acquire the original. Damn. I wanted to post the Model number of the set, but the durn paper I wrote it on seems to be hiding from me. I guess that's what I get for cleaning up and getting things organized around here )`: Thanks Dave Moore |
#2
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Philips IC SMPS "cold side controller" P/N 612771-1 ?????????????? Philips
On Fri, 21 Sep 2007 05:44:56 -0500, "Dave Moore"
put finger to keyboard and composed: My brothers PTV crashed and one of the SMPS controller IC's appears to be bad. The hot side controller IC P/N 612664-2 I have identified as a Motorola MC34056 That should be MC34065. P/N 612664-2 crosses to an NTE1765, as does the MC34065: http://www.nteinc.com/specs/1700to1799/pdf/nte1765.pdf But I can't seem to find any info on the cold side controller P/N 612771-1 FWIW, this URL claims that the IC is made by Motorola, not Philips, and is equivalent to an SC78104P: http://www.tv-forums.com/forum/TV_Eq...12771-1_P7816/ IIRC, the "SC" prefix denotes a special order. In any case, if the IC is what I think it is, then it is probably mask ROMmed. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#3
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Philips IC SMPS "cold side controller" P/N 612771-1 ?????????????? Philips
"Franc Zabkar" wrote in message ... : On Fri, 21 Sep 2007 05:44:56 -0500, "Dave Moore" : put finger to keyboard and composed: : : My brothers PTV crashed and one of the SMPS : controller IC's appears to be bad. : : The hot side controller IC P/N 612664-2 I have identified : as a Motorola MC34056 : : That should be MC34065. : : P/N 612664-2 crosses to an NTE1765, as does the MC34065: : http://www.nteinc.com/specs/1700to1799/pdf/nte1765.pdf Yeah, thanks for the correction. The SER archive thanks you too :-) : : But I can't seem to find any info on the cold side controller : P/N 612771-1 : : FWIW, this URL claims that the IC is made by Motorola, not Philips, : and is equivalent to an SC78104P: : http://www.tv-forums.com/forum/TV_Eq...12771-1_P7816/ Yeah, I had already flagged that guys post and got nowhere with that SC part number either. No NTE cross and no datasheets found by Google But Thanks anyway Franc. Dave Moore : : IIRC, the "SC" prefix denotes a special order. In any case, if the IC : is what I think it is, then it is probably mask ROMmed. : : - Franc Zabkar : -- : Please remove one 'i' from my address when replying by email. |
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