Checking Components And Wiring
Check the cable between connector B to phone module (PHM) and the SIM-card reader's connector for open circuit.
Check between:
- control module's connector B#1 (#21) and SIM-card reader's connector #1
- control module's connector B#2 (#22) and SIM-card reader's connector #2
- control module's connector B#3 (#3) and SIM-card reader's connector #3
- control module's connector B#4 (#4) and SIM-card reader's connector #4
- control module's connector B#5 (#5) and SIM-card reader's connector #5
- control module's connector B#6 (#6) and SIM-card reader's connector #6.
Check the connectors for loose connections, damaged or bent pins as well as oxidation.
If no malfunction was found on the cable, try replacing the SIM-card reader.
Remedy as necessary.
Other information:
- see CONNECTING THE BREAKOUT BOX
- see SIGNAL SPECIFICATION
- see LOCATION OF COMPONENTS
- see PHONE MODULE (PHM), REPLACING
- see HANDSET, REPLACING
- see CHECKING WIRING AND TERMINALS
- Continue
See: VERIFICATION