论文部分内容阅读
例1 机型:ZL—210型传真机故障现象:按下传真键,屏幕显示“LINE ERROR”,发送失败(对方不能接收)。分析与检修:传真机出现“LINE ERROR”,意思是线路出现错误,说明是两台传真机互通、确认后发生的故障,由此可断定本机的调制解调器工作正常。此时将传真机置于可监听状态,监听双方通信的传真音调基本正常,又根据故障现象只是对方不能接收(对方传真和线路均正常),说明本例故障是由于发送电平太低
Example 1 Model: Model ZL-210 fax machine Fault phenomenon: Press the Fax button, the screen displays “LINE ERROR”, the transmission failed (the other party can not receive). Analysis and Overhaul: “LINE ERROR” appears on the fax machine, which means that there is an error on the line, indicating that the two fax machines are interworking and the fault occurred after the confirmation. Therefore, it can be concluded that the modem of this machine is working normally. In this case, the fax machine can be placed in a monitorable state. The fax tones of the two parties are basically normal, but the other party can not receive the fax message (the other party’s fax and line are normal). The reason is that the sending level is too low