2
IN/RandC/004-EN Rev. A
| SM500F | Field mountable paperless recorder
3 Processor board replacement
1.
Disconnect the recorder from the power supply.
2.
Referring to Fig. 3.1, unlock the door with the key
A
,
press release catch
B
and open the door.
3.
Referring to Fig. 3.2, remove 6 Torx screws
C
securing
the door assembly rear cover and remove the rear cover.
Referring to Fig. 3.3:
4.
Disconnect processor board flexi-cable
D
, display
flexi-cable
E
and keypad membrane cable
F
from the
processor board and lift out and discard the processor
board.
5.
Position the new processor board in the door housing and
reconnect keypad membrane cable
F
, display flexi-cable
E
and processor board flexi-cable
D
.
6.
Referring to Fig. 3.2, refit the door assembly rear cover and
secure using 6 Torx screws
C
.
7.
Close and lock the door.
8.
Restore the recorder's power supply.
NOTICE – Property damage
The recorder is vulnerable to electrostatic damage.
Wear an anti-static strap or place the instrument on
an anti-static workbench.
Fig. 3.1 Opening the door
Fig. 3.2 Removing the rear cover
A
B
C
Fig. 3.3 Disconnecting the processor board
D
E
F
