Removal And Replacement; Introduction - HP PageWriter XL M1705B Service Manual

Removal and Replacement
Introduction
This chapter contains procedures for removing and replacing these
cardiograph subassemblies:
n
The battery
H The keyboard and the user interface assembly
w The printer drive assembly
w The preview screen assembly (M1700A only)
w The top cover assembly
n
The printhead assembly
n
The preview logic board (M1700A only)
H The CPU assembly
8 The disk drive (M1700A and M1701A only)
Note .I
.
t?
As of February 1992, all new PageWriter XL cardiographs are
manufactured to a revised mechanical design specification. All units
having a serial number prefix of 3208A or later conform to this
revised specification.
This chapter contains procedures for all PageWriter XL cardiographs.
The particular procedure you will use depends on the serial number
prefix of the PageWriter you are servicing. Make sure you use the
correct procedure for your particular cardiograph.
Note .I
u
The way in which wires and cables are routed and dressed inside the
main chassis plays an important part in reducing electromagnetic and
radio frequency interference emitted by the cardiograph. When you
disassemble any part of the cardiograph, pay special attention to the
way cables and wires are routed and dressed. When you reassemble
the cardiograph, be sure to route and dress all cables and wires aa
they were originally.
Removal and Replacement 7-1