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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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#1
Posted to sci.electronics.repair
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help ID an Ic?
I've got a Pioneer CD player remote that stopped working after the cells
ran down and leaked,but the leakage did not get on any of the PCB. There's an IC marked MN1280G,3 pins,that looks like a low power 3-terminal regulator,but I could not find any datasheet on it. (all I found was for a precision trimmer resistor) The other two ICs are Pioneer custom ICs,and then there's a discrete clock circuit wiht a 2-lead ceramic resonator. TIA. -- Jim Yanik jyanik at kua.net |
#2
Posted to sci.electronics.repair
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help ID an Ic?
On 14 Jul 2006 15:39:38 GMT Jim Yanik wrote in Message
id: : I've got a Pioneer CD player remote that stopped working after the cells ran down and leaked,but the leakage did not get on any of the PCB. There's an IC marked MN1280G,3 pins,that looks like a low power 3-terminal regulator,but I could not find any datasheet on it. (all I found was for a precision trimmer resistor) It might be this: "Peak Detector - Power-up reset" http://www.datasheetarchive.com/sear...ExactDS=Starts http://www.datasheets.org.uk/pdf/mn1...datasheet.html This dist. used to carry them: http://www.tritronicsinc.com/ "IC NO LONGER AVAIL PER MESCO" Not especially helpful or encouraging... |
#3
Posted to sci.electronics.repair
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help ID an Ic?
On 14 Jul 2006 15:39:38 GMT, Jim Yanik put finger
to keyboard and composed: I've got a Pioneer CD player remote that stopped working after the cells ran down and leaked,but the leakage did not get on any of the PCB. There's an IC marked MN1280G,3 pins,that looks like a low power 3-terminal regulator,but I could not find any datasheet on it. (all I found was for a precision trimmer resistor) The other two ICs are Pioneer custom ICs,and then there's a discrete clock circuit wiht a 2-lead ceramic resonator. TIA. This is claimed to be the NTE equivalent for the L/K/P/Q/R versions: http://www.nteinc.com/specs/15000to15099/NTE15044.html However, I can't see how this can be the case if each version number relates to a different detection voltage. FWIW, the MN1280 is available for AU$1.55 in Australia. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#4
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help ID an Ic?
Franc Zabkar wrote in
: On 14 Jul 2006 15:39:38 GMT, Jim Yanik put finger to keyboard and composed: I've got a Pioneer CD player remote that stopped working after the cells ran down and leaked,but the leakage did not get on any of the PCB. There's an IC marked MN1280G,3 pins,that looks like a low power 3-terminal regulator,but I could not find any datasheet on it. (all I found was for a precision trimmer resistor) The other two ICs are Pioneer custom ICs,and then there's a discrete clock circuit wiht a 2-lead ceramic resonator. TIA. This is claimed to be the NTE equivalent for the L/K/P/Q/R versions: http://www.nteinc.com/specs/15000to15099/NTE15044.html However, I can't see how this can be the case if each version number relates to a different detection voltage. FWIW, the MN1280 is available for AU$1.55 in Australia. - Franc Zabkar That's it! Thanks ever so much. -- Jim Yanik jyanik at kua.net |
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