General Repair Procedures And Techniques; Table 1-1. Lead Free Solder Wire Part Number List; Table 1-2. Lead Free Solder Paste Part Number List - Motorola ASTRO XTSTM 4000 Detailed Service Manual

Introduction: General Repair Procedures and Techniques
1.3

General Repair Procedures and Techniques

NOTE Environmentally Preferred Products (EPP) (refer to the marking on the printed circuit
boards — examples shown below) were developed and assembled using environmen-
tally preferred components and solder assembly techniques to comply with the Euro-
pean 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.
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:
Motorola
Part Number
1088929Y01 95.5Sn/3.8Ag/0.7Cu
Motorola Part Manufacturer Part
Number
1085674C03 NC-SMQ230
Parts Replacement and Substitution
When damaged parts are replaced, identical parts should be used. If the identical replacement
component is not locally available, check the parts list for the proper Motorola part number and order
the component from the nearest Motorola Radio Products and Solutions Organization listed in
Appendix A of this manual.
1.3.1 Rigid Circuit Boards
The 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 through-plated holes may interconnect multiple layers of the printed circuit. Therefore, care
should be exercised to avoid pulling the plated circuit out of the hole.
When soldering near the connector pins:
• avoid accidentally getting solder in the connector.
• be careful not to form solder bridges between the connector pins
• closely examine your work for shorts due to solder bridges.
6871620L01-C

Table 1-1. Lead Free Solder Wire Part Number List

Alloy Flux Type
RMA Version

Table 1-2. Lead Free Solder Paste Part Number List

Viscosity
Number
900-1000KCPs
Brookfield (5rpm)
Flux Content Melting Supplier Part
by Weight Point
2.7-3.2% 217C
Type Composition & Percent Metal
Type 3 (95.5%Sn-3.8%Ag-0.7%Cu)
(-325/+500)
Diameter Weight
number
52171 0.015" 1lb spool
Liquid
Temperature
217°C
89.3%
May 28, 2008
1-3