5-4 Disassembly/Reassembly Procedures: Repair Procedures and Techniques – General
5.4 Repair Procedures and Techniques – General
Any rework or repair on Environmentally Preferred Products must be done using the appropriate
lead-free solder wire and lead-free solder paste as stated in the following table:
Parts Replacement and Substitution
Check the parts list for the proper Motorola part number and order the part from the nearest Motorola
Radio Products and Solutions Organization listed in Appendix A of this manual.
Rigid Circuit Boards
This Control Head uses bonded, multi-layer, printed circuit boards. Since the inner layers are not
accessible, some special considerations are required when soldering and unsoldering components.
The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, exercise
care to avoid pulling the plated circuit out of the hole.
When soldering near a connector:
• Avoid accidentally getting solder in the connector.
• Be careful not to form solder bridges between the connector pins.
• Examine your work closely for shorts due to solder bridges.
NOTE
Environmentally Preferred Products (EPP) (refer to the marking on the printed circuit
boards – examples shown below) were developed and assembled using environmentally
preferred components and solder assembly techniques to comply with the European
Union’s Restriction of Hazardous Substances (ROHS) Directive 2002/95/EC
and
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
. To
maintain product compliance and reliability, use only the Motorola specified parts in this
manual.
Table 5-1 Lead Free Solder Wire Part Number List
Motorola
Part Number
Alloy Flux Type
Flux Content
by Weight
Melting
Point
Supplier Part
number
Diameter Weight
1088929Y01 95.5Sn/3.8Ag/0.7Cu RMA Version 2.7–3.2% 217°C 52171 0.015” 1lb spool
Table 5-2 Lead Free Solder Paste Part Number List
Motorola Part
Number
Manufacturer Part
Number
Viscosity Type Composition & Percent Metal
Liquid
Temperature
1085674C03 NC-SMQ230 900–1000KCPs
Brookfield (5rpm)
Type 3
(-325/+500)
(95.5%Sn-3.8%Ag-0.7%Cu)
89.3%
217°C
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