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12/03 Rev. 3.00-01
Boards
Boards: General
The housing must only be opened by
authorised skilled personnel !
When handling electronic printed circuit
cards and components, it must be
ensured that static charges are
prevented from endangering the
electronic circuitry.
Setting requirements and printed-circuit-
board layouts are contained in the
section "Service / Printed circuit boards".
The demounting and mounting of the boards
are described below.
Display board
The display board can be changed from the
reverse side of the front-left housing.
Demounting / mounting
1. Detach back cover
Regarding this point, see the section
"Housing".
3. Disconnect the plug (1) of the flatband
cable on the CPU board.
4. Loosen the Phillips screw (2) on the
front plastic cover.
5. The display board (3) is attached to the
bases (4) with adhesive. For this reason,
the board must be removed carefully
from the base.
If too much force is used in the process,
the bases break off! After insertion,
secure the board to the bases again
using adhesive.
Tools
– Phillips screwdriver
SERVICE MANUAL
TTX 350
3
General Service
4
3
4
2
14
2
1
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