论文部分内容阅读
ＳＪ系列时间检定仪修理经验（二）ＳＪ—２型时间检定仪ＳＪ—２型时间检定仪系采用单板微机控制，修理时也应先检查电源部份。直流部份有：洪单板机ＳＶ（插座２第ｌ脚）；供晶振工作１２Ｖ（插座２第３脚）；供毫秒仪输出一１２Ｖ（插座２第５脚）；供秒表夹具启动１２...
SJ Series Time Tester repair experience (B) SJ-2 Tester SJ-2 Tester type microcomputer control board, repair should also check the power supply section. DC part of the: Hong veneer machine SV (socket 2 l feet); for crystal work 12V (socket 2 foot 3); for the millisecond instrument output a 12V (socket 2 foot 5); ..