Display; Removing The Display; Replacing The Membrane Keypad / Nec 2 Display - Seca 378 Service Manual

Replacement
seca 674, 675

2 Display

Please be sure to observe the sequence listed below when removing/fitting the parts!

2.1 Removing the display

 Undo the four screw connections (T, Fig. 6) at the bottom of the operating and display
unit first.
 Now carefully lift the printed operating and display unit (A1, Fig.6).
 Detach the plug-in connections between the modular cable and the NEC2 display
(S1, Fig.5).

2.2 Replacing the membrane keypad / NEC 2 display

 To replace the membrane keypad (U), NEC2 display (V) you need to undo the four
screw connections (T, Fig. 6) at the bottom of the operating and display unit first.
 Now carefully lift the printed operating and display unit (A1, Fig. 6).
The plug-in connector (X) connects the membrane keyboard (U) with the NEC2
display (V).
Carefully detach this connection! You can now take off the printed operating and
display unit (A1, Fig. 6).
 The membrane keyboard (U) is glued in place and must be replaced with a new one.
 Detach the plug-in connections between the modular cable and the NEC2 display
(S1).
Unsolder the battery/accumulator battery connections (C1), if applicable.
Unscrew the NEC2 display from the board holder (D1, Fig. 6)
and remove the NEC2 display.
 Proceed in the reverse order for reassembling
When aligning the display components refer to cabling diagram 08-02-06-058.
U
Figure 5: Detail cableplan 08-02-06-058 NEC2 Display/radio module/membrane keyboard
08.02.2013/MRE
X
S1
Seite 8 (9)
W
V
C1
30-34-00-859_E1