Ten-Tec_2591_使用说明书手册_1983

2591proc -TenTec Wikihttp://www.tentecwiki.org/doku php?id=2591proc&rev=1179708100&m..Processor CareFrom Ten Tec Reflector June 19,1997After a exchange of e-mail with Dale,KG5U,I decided to post this short note as he'd queried me direct aboutwhat causes processor death in the 2591,TT920,and AT920 handheld Ten-Tec VHF transceivers.As notedbefore,the main processor chip for these rigs is no longer available and cannot be replaced should one quitoperating.According to our service department,the main cause of processor death is application of 12 or 13.8 VDC to thetransceiver.The battery pack and DC input for these rigs are 9 VDC,and higher voltages will eventually takethe processor chip out.These older rigs show up at hamfests without a manual,new owner sees DC input,puts12V on it,voila-dead radio.A lesser warning is to leave the power turned off when clipping the NiCd battery pack on (as noted in anaddendum to the original manual).Thank youScott Robbins,W4PA Amateur Radio Sales,Ten-Tec,Inc.2591proc.txt.Last modified:2007/05/2020:41 (external edit)Except where otherwise noted,content on this wiki is licensed under the following license:Public Domain[http://creativecommons.org/licenses/publicdomain/]1of13/25/20157:47PM