6 - 6 Maintenance
Repair Procedures and Techniques – General
Parts Replacement and Substitution
When damaged parts are replaced, identical parts should be used. If the identical replacement part
is not locally available, check the parts list for the proper Motorola part number and order the part
from the nearest Motorola Communications parts center listed in the “SUPPORT CENTRES”
section of this manual.
Disassembling and Reassembling the Terminal – General
Since these terminals may be disassembled and reassembled with the use of only seven screws, it
is important to pay particular attention to the snaps and tabs, and how parts align with each others.
The following tools are required for disassembling the terminal:
• Small flat blade screwdriver
• Small Phillips screw driver
• Dismantling Tool (Motorola Part No.: 6686119B01)
• TORX™ T screwdriver
• Blunt-tipped tweezers
• TORQUES: Diecast Top Cover (7x): 1.92 – 2.03 Nm (17 – 18 lb-in)
PCB (2x): 1.92 – 2.03 Nm (17 – 18 lb-in)
GPS cable nut: 0.904 +/- 0.09 Nm (8.0 +/- 0.8 lb-in)
Enhanced Control Head Screws: 0.57 +/- 0.046 Nm (5.0 +/- 0.4 lb-in)
Remote Mount Ethernet Control
Head Middle Screw (1x): 0.57 +/- 0.046 Nm (5.0 +/- 0.4 lb-in)
Remote Ethernet Back Head PCB
Screws (3x): 0.57 +/- 0.046 Nm (5.0 +/- 0.4 lb-in)
TSCH Handset PCB Screws (4x): 0.25 +/- 0.011 Nm (2.2 +/- 0.1 lb-in)
TSCH Handset Micro-USB Module
Screws (2x): 0.17 +/- 0.0.011 Nm (1.5 +/- 0.1 lb-in)
TSCH Handset Main Screws (4x): 0.36 +/- 0.011 Nm (3.2 +/- 0.1 lb-in)
TSCH Cradle PCB Screws (2x): 0.57 +/- 0.046 Nm (5.0 +/- 0.4 lb-in)
TSCH Cradle Main Screws (4x): 0.57 +/- 0.046 Nm (5.0 +/- 0.4 lb-in)
NOTE:
If a unit requires more complete testing or service than is customarily performed at the
basic level, send this unit to a Motorola Authorized Service Center (refer to APPENDIX
A: Support Centers). The following described disassembly procedures should be
performed only if necessary.
CAUTION: The following parts that MUST be replaced every time the radio is
disassembled:
• Pre-driver heat sink thermal pad (part number: 75012083001) – 2pcs
• RF PA thermal pad (part number: 75012082001) – 1pc.
!
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