General Repair Procedures And Techniques - Motorola MXP600 Manual

MN006362A01-AL
Chapter 5 : Maintenance
Handling precautions are mandatory for CMOS/LDMOS circuits and are especially important in low
humidity conditions. Do not attempt to disassemble your radio without referring to the following caution
statement.
CAUTION:
This radio contains static-sensitive devices. Do not open your radio unless you are properly
grounded. Take the following precautions when working on this unit:
• Store and transport all CMOS/LDMOS devices in conductive material so that all exposed
leads are shorted together. Do not insert CMOS/LDMOS devices into conventional plastic
"snow" trays used for storage and transportation of other semiconductor devices.
• Ground the working surface of the service bench to protect the CMOS/LDMOS device. It
is recommended that you use a wrist strap, two ground cords, a table mat, a floor mat,
electrostatic discharge (ESD) shoes, and an ESD chair.
• Wear a conductive wrist strap in series with a 100k resistor to ground. Replacement
wrist straps that connect to the bench top covering are Motorola Solutions part number
4280385A59.
• Do not wear nylon clothing while handling CMOS/LDMOS devices.
• Do not insert or remove CMOS/LDMOS devices with power applied. Check all power
supplies used for testing CMOS/LDMOS devices to be certain that there are no voltage
transients present.
• When straightening CMOS/LDMOS pins, provide ground straps for the apparatus used.
• When soldering, use a grounded soldering iron.
• Handle CMOS/LDMOS devices by the package and not by the leads. Before touching the
unit, touch an electrical ground to remove any static charge that you may have accumulated.
The package and substrate may be electrically common. If so, the reaction of a discharge to
the case would cause the same damage as touching the leads.
5.3

General Repair Procedures and Techniques

Environmentally Preferred Products (EPP) were developed and assembled using environmentally
preferred components and solder assembly techniques. These are in compliant with the European
Union's Restriction of Hazardous Substances (ROHS 2) Directive 2011/65/EU and Waste Electrical
and Electronic Equipment (WEEE) Directive 2012/19/EU. To maintain product compliance and
reliability, use only the Motorola Solutions specified parts in this manual.
For the identification of lead (Pb) free assemblies, all EPP products carry the EPP Marking on the
Printed Circuit Board (PCB). The following images show examples of the EPP Marking, adhering to the
JEDEC Standard No. 97. This marking provides information to those performing assembly, servicing,
and recycling operation on this product. 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 lead-free solder paste. These requirements are stated in the following tables:
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