Motorola L7082, Service Manual

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L7082 / L7089
SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY
b) Reed Switch defective Gain access to RF / Logic PCB as described
in the DISASSEMBLY instructions in this
manual. Unsolder the reed switch and
replace with a known good one. Reassemble
unit. Place call to portable phone and verify
ability to answer by opening flip. If fault still
present, replace original reed switch and
proceed to c.
9. Internal Charger not working a) Faulty charger circuit on main
Board. Test a selection of batteries in the rear
pocket of the desktop charger.
Check LED display for the charging
indications. If these are charging ok, then the
internal charger is at fault. Replace Logic/RF
Board Assembly (refer to symptom 1c).
Verify that the
Fault has been cleared and re-assembles the
unit with the new PCB.
10. No / Weak audio when using headset a) Headset not fully pushed home Fully ensure the ‘click’ is felt on the jack
socket. If still at fault proceed to b)
b) Faulty Jack Socket / Defective PCB Replace Logic/RF Board Assembly (refer to
symptom 1c). Verify that the fault has been
cleared and re-assemble the unit with the
new PCB.
11. No IrDA Connection a) Alignment of handset / IrDA device Ensure unit is no more than 25cm away from
the IrDA device that will be talked to, also
ensure as good as alignment as possible. If
still no connection proceed to b)
b) Remote Device faulty Check unit against known good IrDA device
to see if connection is made. If fault still
present refer to c)
c) Logic/RF Board Assembly
Defective. Replace Logic/RF Board Assembly (refer to
symptom 1c). Verify that the fault has been
cleared and re-assembles the unit with the
new PCB.
6.4 Software Upgrade
For information on setting up and equipment required for the flashing of software, contact should be
made with the local technical support engineer.
Flashing must take place using the Emmi2D box.
6.5 Flexing
For information on setting up and equipment for flexing, contact should be made with the local
technical support engineer.
*IrDA does not support flashing or flexing, only Data transfer