HP 54501A - Assembly Removal and; Rear Panel Assembly; Power Supply Assembly

MP
54001A
SERVICE
6-17 . ASSEMBLY
REMOVALAND INSTALLATION
This section contains
the procedures for removal and installation of
the
oscilloscope system board,
CRT monitor,
power supply, fan and keyboard assemblies .

Read the Safety Summary at the
front of this manual
before servicing the instrument .
6-22
WARNING
Hazardous voltages
exist on the power
supply, the CRT
assembly, and the dis-
play
sweep board . To avoid electrical
shock, the following procedures
should
be closely adhered to .
Wait at least
three minutes
for the capacitors on the
power supply
and sweep boards to dis-
charge
before servicing this instrument .
6-18 .
Removal and Replacement
of Rear Panel Assembly
1 .

Disconnect
power cable .
CAUTION
Never remove or install any circuit board
with the instrument power ON .
Component damage may occur
.
2 .

Remove
the six screws from top and the two screws
from each side of the instrument with
TORXO 10
screwdriver .
3 .

Lift top
cover off .
4 .
5 .
6 .
7 .
Detach
line filter cable, W7, from power supply
.
Remove the eight screws
from the
rear
panel with TORXe 15 screwdriver .
Remove rear
panel from instrument cabinent .
Replace rear
panel by reversing this procedure .
6-19 . Removal
and Replacement of Power Supply Assembly
1 .

Disconnect
power cable .
2 .

Remove the six screws
from
with TORX® 10
screwdriver .
3 .

Lift top cover
off .
top and the two screws from each side of
instrument cabinet
4 .

Remove cable W1
attaching power supply to System BoardAssembly
.
5 .

Detach line filter cable,
W7, from Power Supply Assembly .