Power Supply
Removal
Attention: The electronic parts of this printer can be damaged by electrostatic discharge (ESD). Ensure that ESD
protection devices and procedures, including a static discharge wrist strap, are used while working on the printer.
DANGER
To prevent serious personal injury from electrical shock when connecting or disconnecting the interface
cable, set the printer power switch to O (Off) and unplug the power cord.
DANGER
Primary power is present on the power supply when the power cord is connected, even when the power
switch is set to O (Off).
1. Put the covers in the service position. See “Removing Covers” on page 275.
2. Remove the following:
v
Power supply cover
v
Power connector screw and clamp
Note: The clamp is not used on later machines. Instead, the screw fastens an extended tab on the power
supply cover.
v
Main power switch from the base frame
Chapter 5. Removals and Adjustments
400
Summary of Contents for 4247
Page 1: ...4247 Printers Maintenance Information Document Number SA24 4400 05 Part Number 27P8450 IBM ...
Page 241: ...e90apc15 Figure 24 Main Input Power Supply Ground Chapter 3 Circuit Diagrams 241 ...
Page 257: ...Figure 32 Stacker Motor Wiring Chapter 3 Circuit Diagrams 257 ...
Page 261: ...Stacker Cable Wiring Figure 36 Tractor Assembly Cable Wiring Chapter 3 Circuit Diagrams 261 ...