Specifications

C.3 SMDP—Shuttle Matrix Display Panel
The SMDP board (P/N 29-26720-00) exchanges digital information with
the SMSM board (located in the card cage). The SMDP board is also an
interface for the inner control panel and the outer control panel. Mounted
on the SMDP board is an audio beeper, the printer initialization switch
(SW1), and three 7-segment LED displays.
The SMDP board (see Figure C-2) is located under the inner control
panel.
Fuses: None
Controls: SW1 (Initialization Switch) - A backup to the normal
initialization procedure (see Chapter 3, Section 3.4). After
installing the board, ensure that SW1 is set to the far left
position.
Indicators: Three 7-segment LEDs for operator/diagnostic use. Audio alarm.
Jumpers: None
Figure C–2: SMDP Board
CABLE ENTRY
GROUND SPADE
CONNECTOR
PRINTER
INITALIZATION
SWITCH
AUDIO
ALARM
7-SEGMENT DISPLAYS
P2
P3
P4
SW1
SMDP
RE_UK00287M_89
LG31 PRINTED CIRCUIT BOARD SUMMARY C–3