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Section F
5.7. REPLACING THE PC1 CONTROL BOARD
(A)
for Orthoralix 9200 / Plus / Ceph / DPI
To replace the PC1 control board, proceed as follows:
(1)
remove the mirror panel (a) by unscrewing the two Allen
screws (b).
(2)
disconnect the connector X31 from the PC1 board.
P
a
y
t a
e t
t n
o i
n
o t
d
o
n
t o
d
a
m
(3)
disconnect all the others connectors from the PC1 board.
(4)
remove the PC1 board (c) by unscrewing the five screws
(d).
A
B
PC1
F-42
N
O
T
E
a
g
e
h t
e
c
o
n
n
e
c
o t
s r
a
n
d
h t
e
w
C
D
(5)
from the old PC1 board remove:
- the EEPROM D38
- if present, remove the integrated circuits D33 and D37
(one to enable the TSCAN option the other one to enable
the DMF (dento maxillo facial option).
D3 2
C1 24
D33
RR2
D37
C1 44
r i
n i
. g
C1 49
D4 6
C1 54
X26
C1 53
(6)
replace the EEPROM D38 on the new PC1 with the one
removed from the old PC1.
(7)
take the two integrated circuits D33 and D37 previously
removed from the old PC1 and mount them on the new PC1
into the sockets D33 and D37 indifferently.
(8)
mount the new PC1 on the metallic plate by means of the
five screws.
(9)
restore all the connections to the new PC1.
X31
(03.0)E
ORTHORALIX 9200
D2 8
D2 9
D3 0
RR1
D3 4
D3 5
D3 6
C1 33
D38
R1 27
R1 28
D3 9
R1 29
R1 30
RR3
RR4
D4 4
D4 3
D45
RR7
RR6
R1 38
R1 39
R1 40
R1 41
H5
RR8
X28
X27
X29
X30
DENTSPLY Gendex
Service Manual
NEW
D31
PC1
R3 00
R1 22
R1 24
R1 23
D4 0
D4 1
D4 2
RR5
C1 52
D45
R1 33
X33
X31
X32
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