11/98 IPN: 449-51000-01
Diagnostics and fault finding C - 11
Figure C-3: Fault finding – No serial communication
YES
YES
YES
NO
NO
NO
NO
YES
No serial communication
Make sure physical
connections are intact.
Change the ‘COMM Port’ using
Utility | Defaults option.
Replace or repair leads.
Set Tx/Rx switch to Rx.
Replace flexible loom.
Ensure loom is properly fitted
into the socket on the PCB.
Make sure PTT is released.
Leads OK?
Is the Tx/Rx
switch on the calibration
test unit set to Rx?
Is the flexible loom
inserted correctly?
Is the flexible loom
end damaged?
Is the PTT jammed on?
Return to Mobile Radio
Customer Service Department
Is the software using the
correct serial port?
Are the physical connections
correct, e.g. battery charged,
comms lead inserted correctly
into the correct port on the PC,
flexible loom contacts clean, etc.?
NO
YES
NO
YES
NO
YES
Summary of Contents for Orca series
Page 1: ...Tait Orca Handportable Radios Service Manual December 1998 IPN 449 51000 01 ...
Page 8: ...A 2 Introduction 11 98 IPN 449 51000 01 ...
Page 16: ...A 10 Introduction 11 98 IPN 449 51000 01 ...
Page 18: ...B 2 Radio specifications and circuit descriptions 11 98 IPN 449 51000 01 ...
Page 26: ...C 2 Diagnostics and fault finding 11 98 IPN 449 51000 01 ...
Page 58: ...D 20 Servicing the radio 11 98 IPN 449 51000 01 ...
Page 60: ...E 2 Battery packs and chargers 11 98 IPN 449 51000 01 ...
Page 74: ...F 2 Interfacing non Tait accessories 11 98 IPN 449 51000 01 ...
Page 82: ...F 10 Interfacing non Tait accessories 11 98 IPN 449 51000 01 ...
Page 84: ...G 2 Additional information 11 98 IPN 449 51000 01 ...