5.
To
reassemble,
reverse
the
preceding
procedures in logical order.
4-15. DISPLAY
PCB
REMOVAL
4-16. Use the following procedure to remove the
Display PCB from the instrument:
I.
Complete the Display PCB Access procedure.
2.
Remove the screws (two) from the plastic bar
that clamps the Interconnect cable to the
Display PCB.
3.
Remove the plastic bar and gently lift the
Interconnect cable from the sides. To avoid
contamination, do not to touch the metal
C2
C1
R&
RS
190VAC 19VAC
1000VDC 190VDC 10 KHZ 10 KHZ
0000
0 0
0 0 0
0 0
MAINTENANCE
ACCESS PROCEDURES
contact
strips
on
the
underside
of
the
Interconnect cable.
4.
To
reassemble,
reverse
the
preceding
procedures in logical order.
4-17. LCD
REMOVAL
4-18. Use the following procedure to remove the LCD
(Liquid
Crystal
Display)
from
the
Display
PCB
Assembly:
I.
Complete the Display PCB Access procedure.
2.
Remove the two screws located on the foil side
of
the Display PCB Assembly.
R12
R11
190M VDC 1.9VOC
0 0
~
0
0
0 g 0
0 0
g
0 0 0
0 g g
0 0 0
0 0
0
D 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
D
0
0
0
0
0
0
~
0
DISPLAYrP~·~C=.B~.
---.
REV
_J~-----'
D 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0
0 0
0
00
0
0
0 0
0 0
0 0
00
0
00
0
0
00
0
0
00
0
0
0
0
0
0
0
0
0
0
Figure 4-1. Display
PCB
Access
0
a o a o
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
00
00
0
0
a i
0 0
0 0
0 0
0 0
0 0
0 0
0 0
a
0
0
0
O TP12
g 0
0
4-3
- ----,----r-----,---..,...,,..,..._
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