CodePudding user response:
The integrity of the inspection line, check the terminal connection. Check the crystal head.CodePudding user response:
There are several core is not yet connected to should beCodePudding user response:
@ hot beard with wiring son answered the two core, crystal head are two coreCodePudding user response:
Telephone line is digital or analog signal and digital signal points are negative, if meet theCodePudding user response:
Check the crystal head line should be connectedCodePudding user response:
Telephone the badCodePudding user response:
Fixed, may meet the son is not good, to pick up the passCodePudding user response:
Two core, call through a will ring, want to use the line tool,CodePudding user response:
This is line problems more, your telephone equipment to restart the engine in the test, otherwise, contact telephone operators,CodePudding user response:
Is basically the problem of terminal I suggest if you can still take a small iron welding