This document aids service personnel in testing and repairing V6 telephones. Service
personnel should be familiar with electronic assembly, testing, and troubleshooting methods,
and with the operation and use of associated test equipment.
Requirements
Follow the current Technical Requirements for servicing Motorola products as described in
Requirement List for Motorola Authorized Service Centers.
the
About this Troubleshooting Guide
This document was created to assist analyzers troubleshooting problems on Motorola 3G
Phones. All information was collected during the repair in the Repair Entitlement Group
Flensburg.
Related Documents
V6 Level 1&2 Service Manual
V6 mechanical Overview
V6 Disassembly Video
V6 Assembly Video
Basic information on troubleshooting Motorola 3G phones
Make sure on any problem, that it is not a software related one by simply doing a 1FF reflash
with a Master Reset/Master Clear afterwards. In many cases a simple Master Reset can
already fix the problem.
Make sure all contacts are clean.
Use newest approved Software.
Do a visual inspection on customer abuse/liquid contamination.
Main Lens Press Fixture http://md-service.corp.mot.com/Bulletins/PPreview.aspx?Key=1827
Keypad Tab Bent Fixture http://md-service.corp.mot.com/Bulletins/PPreview.aspx?Key=1830
Additional Tools
Following passive and active cooling devices are available at
Verification: Temporarily replace the flip assembly with a known good flip assembly. If the
fault has not been cleared, it is because of a defective transceiver board assembly. Forward
to an authorized Level 3 Service Center or proceed to
b) Speaker bad soldered/defective
Remove flip cover and visually inspect soldered contacts at speaker. If not ok, resolder
speaker. Otherwise replace speaker with a new one.
level 3 troubleshooting.
Figure 4
c) Keyboard flex assy defective
Remove flip cover. Unseat the display module assembly flex connector from its socket and
temporarily connect the display module assembly and transceiver board assembly with a
known good keyboard flex assy as shown on Figure 3. Check speaker function by turning on
a 1 kHz test tone via RepairStudio/Radiocomm. If the fault has been cleared, reassemble flip
assy with new keyboard flex assy.
a) Faulty alert speaker (part of rear housing assy)
Verification: Remove rear housing assy and temporarily replace the rear housing assy with a
known good one. If the fault has been cleared, reassemble with new rear housing assy.
Figure 7
b) Faulty connection transceiver board assembly to alert speaker
Remove antenna assembly and check contacts. Temporarily replace antenna assy with a
known good one. If the fault has been cleared, reassemble with a new antenna assy.
Verification: temporarily replace the transceiver board assembly with a known good one. f the
fault has been cleared, forward to an authorized Level 3 Service Center or proceed to
Verification: Temporarily replace the flip assembly with a known good flip assembly. If the
fault has not been cleared, it is because of a defective transceiver board assembly. Forward
to an authorized Level 3 Service Center or proceed to
level 3 troubleshooting.
b) Vibrator bad soldered/defective
Remove flip cover and visually inspect soldered contacts at vibrator. If not ok, resolder
vibrator. Otherwise replace vibrator with a new one.
c) Keyboard flex assy defective
Remove flip cover. Unseat the display module assembly flex connector from its socket and
temporarily connect the display module assembly and transceiver board assembly with a
known good keyboard flex assy as shown on Figure 8. Check vibrator function by turning on
vibrator via RepairStudio/Radiocomm. If the fault has been cleared, reassemble flip assy with
new keyboard flex assy.
Verification: Temporarily replace the flip assembly with a known good flip assembly. If the
fault has not been cleared, it is because of a defective transceiver board assembly. Forward
to an authorized Level 3 Service Center or proceed to
level 3 troubleshooting.
b) Transceiver board connections faulty
Remove rear housing assy from unit and check general condition of flexible printed cable
(keyboard flex assy). If the flex is good, check that the flex connector is fully pressed down.
c) Keyboard flex assy defective
Remove flip cover. Unseat the display module assembly flex connector from its socket and
temporarily connect the display module assembly and transceiver board assembly with a
known good keyboard flex assy as shown on Figure 9. Check function of both displays. If the
fault has been cleared, reassemble flip assy with new keyboard flex assy.
Figure 11
d) Main display or CLI display faulty
Check function of both displays. If just one of them has no function, most likely that display
itself is defective
e) Flip PCB defective
If the fault has not been cleared with one of the previous steps a), b), c) or d), it is most likely
a defective Flip PCB.