Safe Handling Of Cmos And Ldmos; General Repair Procedures And Techniques; Lead Free Solder Wire Part Number List - Motorola CP040 Detailed Service Manual

2-2
3.0

Safe Handling of CMOS and LDMOS

Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios.
CMOS characteristics make them susceptible to damage by electrostatic or high voltage
charges. Damage can be latent, resulting in failures occurring weeks or months later. Therefore,
special precautions must be taken to prevent device damage during disassembly,
troubleshooting, and repair.
Handling precautions are mandatory for CMOS circuits and are especially important in low
humidity conditions. DO NOT attempt to disassemble the radio without first referring to the CMOS
CAUTION paragraph in the Disassembly and Reassembly section of the manual.
4.0

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 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 Subtances
(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 infor-
mation 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.
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:
Motorola
Part Alloy
Number
1088929Y01 95.5Sn/3.8Ag/
0.7Cu
1088929Y02 95.5Sn/3.8Ag/
0.7Cu
1088929Y03 95.5Sn/3.8Ag/
0.7Cu
Table 1-1. Lead Free Solder Wire Part Number List
Flux Type
RMA Version
RMA Version
RMA Version
Flux
Content Melting
Point
by
Weight
2.7-3.2% 217C
2.7-3.2% 217C
2.7-3.2% 217C
MAINTENANCE
Supplier
Part Diameter
number
52171 0.015"
52170 0.010"
52173 0.032"
Weight
1lb spool
0.5lb
spool
1lb spool