Tait TP9100, Service Manual, Page: 25 / 326

TP9100 Service Manual
Description 25
© Tait Electronics Limited May 2005
For heat dissipation, the main board is screwed to the screw boss inside the
chassis
3)
with the screw
2@
.
Battery Pin Seal
The battery pin seal
2*
is fitted around the three spring-loaded battery pins
of the main board. It protrudes through and seals the three holes in the
chassis
3)
and also protects the battery pins against mechanical shock.
Chassis Plug Seal
The chassis plug seal
2(
seals the hole in the rear-panel area of the chassis
3)
.
Rear Panel and
Flexible Accessory
Board
The rear panel provides the mechanical and electrical interface to the
accessories. If no accessory is used, the rear panel is covered by a dummy
cover
3%
.
The plastic rear panel
3$
has a central catch for the lock of the dummy cover
or accessory, and smaller holes for the 13 contacts of the flexible accessory
board
3@
. For more information on the contacts refer to “Connectors and
Contacts” on page 27 .
Two lugs at the bottom of the rear panel engage with two lugs of the chassis,
and the rear panel clips onto the chassis.
The loom of the flexible accessory board is fed though a slot in the chassis
and connects to the accessory connector at the top of the main board.
The flexible accessory board is held in place and sealed by the rear-panel seal
3#
.