Philips SM30 User Manual download pdf (Page 14)

12

5.2 Opening the housing

WARNING: Before attempting to open

the housing, the mains lead and the 48 V

DC battery plug should be disconnected.

It is not sufﬁcient to merely switch off the

ON/OFF switch on the front panel.

Access to the inside of the Control Centre is

gained by removing the cover. This is done

by removing the four ‘cross-head’ screws

located in the sides of the unit. The cover is

then simply lifted off the housing. When the

cover is removed, a ‘retaining bar’ (ﬁg.5.2A)

will be seen spanning the top of the housing.

This should now be removed by loosening

(not removing) the screws located in its

ends.

To access the screw heads, the screwdriver

must be inserted through the holes in the

sides of the housing (ﬁg.5.2B). With the

screws loosened a little, the bar can be slid

vertically out of the screw slots.

Removing Module Blank Panels

The module blank panels are removed in a

similar way, by loosening the cross-head

screws a little and sliding the panels

vertically out of their keyhole slots.

Mounting the Modules

Before inserting the modules, read their

respective chapters to make sure that there

are no jumpers that need to be set in order

to carry out the desired function(s). The

modules are located, as illustrated in ﬁg.5.1,

by aligning the front plate screw with the

keyhole slot (ﬁg.5.2C); the key at the

bottom of the front plate (ﬁg.5.2D) with the

slot in the bottom of the housing; and the

multi connector (ﬁg.5.2E) with the socket

mounted on the mother board. The module

is then gently pushed into place by putting

pressure on the top of the circuit board. If it

does not slot easily into place do not

attempt to force it. Check that it is properly

aligned and try again. When the modules

are inserted, and properly seated in their

connectors, tighten their front plate screws.

Fig. 5.2 - Top view

FUSE 1- 2

X3

LBB 1286

LBB 1284

LBB 1287 LBB 1288

LBB 1282LBB 1283 LBB 1282

B

A

B

E

C

D

GB/SM 30 user manual 5/26/98 10:18 AM Page 12

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