Replacing The Back-Lighting Of The Op27C - Siemens simatic hmi op27 Equipment Manual

19.3.2

Replacing the Back-Lighting of the OP27C

Procedure
Carry out the following steps to replace the back-lighting on the OP27C with a
color display:
OP27, OP37 Equipment Manual
Release 05/99
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Step
1 Lay down the device with its front plate facing downwards.
2 Remove the four housing screws
¶
¶
3 Carefully remove the housing rear panel and lay it down with its inside
facing upwards.
4 Remove the battery connector
¼
¸ »
5 Remove the connector
assembly (see figure in Step 4).
6 Open the labeled connectors
sides of the front side (see figure in Step 4). Pull out the ribbon cables.
Maintenance/Upkeep
Action
¶
.
·
from the electronic assembly.
·
¹
º
¸
from the back-lighting socket on the electronic
¹ º » ¼
, , and by gently lifting the at both
¶
¶
19-7