Re: Norstar NT5B01 power supply
I've got an NT5B06 unit (from label NT5B01FD-93) that I'm trying to keep alive for the business I work at. The unit is in hot computer rooom, where the temperature is elevated (an issue in itself). The unit will stop working when the room is hot...I discovered I can keep the door to the room open and use a box fan to blow cool air into the room and the unit will start to work...at first, it would work a few minutes then shut off (blinking triangles on the handsets), then, I unplugged a few handsets and kept it cool and the system will not work continuously now. I haven't been able to put a scope on it, but was going to replace D75 and D78 since they had the large heat sinks on them...but I can't determine what kind of replacement diodes I need for these....anyone have a part number for these? Or, any additional hints to help me keep this unit alive?
Thanks in advance!
D. Harrison
I've got an NT5B06 unit (from label NT5B01FD-93) that I'm trying to keep alive for the business I work at. The unit is in hot computer rooom, where the temperature is elevated (an issue in itself). The unit will stop working when the room is hot...I discovered I can keep the door to the room open and use a box fan to blow cool air into the room and the unit will start to work...at first, it would work a few minutes then shut off (blinking triangles on the handsets), then, I unplugged a few handsets and kept it cool and the system will not work continuously now. I haven't been able to put a scope on it, but was going to replace D75 and D78 since they had the large heat sinks on them...but I can't determine what kind of replacement diodes I need for these....anyone have a part number for these? Or, any additional hints to help me keep this unit alive?
Thanks in advance!
D. Harrison
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