Checking Handset

Checking handset

Checking handset




In case of lost function of the handset, this may be due to problems in the cable between Phone module (PHM) and handset.
- Ignition off.
Check the cable (microphone signal) between Phone module (PHM) A19(#19) and secrecy handset's connector 1(#21) for open circuit according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Check the cable (loudspeaker signal) between Phone module (PHM) A20(#20) and secrecy handset's connector 2(#22) for open circuit according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Check the cable (voltage feed) between Phone module (PHM) A7(#7) and secrecy handset's connector 5(#25) for open circuit according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Check the cable (cradle signal) between Phone module (PHM) A8(#8) and secrecy handset's connector 4(#24) for open circuit according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Check the cable (ground) between Phone module (PHM) (PHM) A18(#18) and secrecy handset's connector 3(#23) for open circuit according to: Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Try replacing the handset.
Remedy as necessary.

Other information
- Telephone handset Telephone Handset
- Phone Module (PHM) Phone Module (PHM)
- Signal specification Signal Specification, Phone Module (PHM)
- Connecting the breakout box Connecting the Breakout Box, Phone Module (PHM)









Was a fault detected?

Yes - FAULT FOUND

No - No Fault Found

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