4: Repair Internal Assemblies — Introduction
90
Internal Assemblies — Introduction
This section is organized into the following topics:
Opening the Case . . . . . . . . . . . . . . . . . . p. 90
Overview of the Internal Assemblies . . . . . . . . . . . . . . p. 92
WARNING: Remove all power sources (AC, battery) before opening the device. Failure to do so may allow the device
to charge without warning and could result in serious injury or death.
Opening the Case
To open the sealed case safely, perform the following steps, in the order listed.
Each step is described in more detail in following sections.
1 Separate the case (see “Separating the Case” below).
2 Discharge the Therapy Capacitor (see “Discharging the Therapy Capacitor” on page 92).
Separating the Case
Separate the Front and Rear Cases from each other by performing the following steps.
WARNING: Dangerous voltages may be present on components and connections exposed during device disassembly.
Use extreme caution while the device is separated.
CAUTION: Be sure to work in a static-free environment. Use an electrostatic wrist band. The work surface and area
surrounding it must be static-free. Use an antistatic pad which is grounded per the manufacturer’s
instructions.
To separate the Front and Rear Case from each other:
1 Remove accessory pouches and cradles, if present.
2 Remove the Bedrail Mount, if present. See “Bedrail Mount” on page 81.
3 Lay the device on a padded work surface with the display facing down and the bottom of the device
facing toward you.
4 Remove the six M 4x16 case screws, see Figure 56 to .
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