Maintenance – EP350 (Full Keypad Model): Repair Procedures and Techniques – General 6-3
6.4 Repair Procedures and Techniques – General
Any rework or repair on Environmentally Preferred Products must be done using the appropriate
lead-free solder wire and solder paste as stated in the following tables:
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.
Orders for replacement parts which are listed in the “Parts List” section of this manual, should be
placed directly on Motorola’s local distribution organization or via Motorola Online
Rigid Circuit Boards
This family of radios 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 the connector pins:
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 that meet or exceed compliance
to the European Union’s ROHS and WEEE directives (Waste Electrical and Electronic
Equipment (WEEE) Directive 2002/96/EC and Restriction of Hazardous Substances
(ROHS) Directive 2002/95/EC). To maintain product compliance and reliability, use only
the Motorola specified parts in this manual.
For the identification of lead (Pb) free assemblies, all EPP products will carry the EPP
Marking, shown below, on the printed circuit board (PCB). This marking provides
information to those performing assembly, servicing and recycling operation on this
product, adhering to the JEDEC standard #97. The EPP Marking takes the form of a
label or marking on the PCB.
Table 6-10. 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% 217C 52171 0.015” 1lb spool
Table 6-11. Lead Free Solder Paste Part Number List
Motorola
Part Number
Manufacturer Part
Number
Viscosity Type Composition & Percent Metal
Liquidus
Temperature
10-856-
74C03
NC-SMQ230 900-1000KCPs
Brookfield(5rpm)
Type 3
(
-325/+500)
95.5%Sn-3.8%Ag-0.7%Cu
89.3%
217 Degree C
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