5-14 170 Series Monitor Revision C
2000947-004
Theory of Operation: Functional Overview
* Active low.
Table 5-15. Membrane Switch Panel Interface (J19)
Pin Number Signal Name
Signal Type
(Relative To Main
Board)
Signal Description
1 UAREF* Input UA Ref Switch Input
2 PWRANODE Output Power Indicator LED Anode
3 REC* Input Recorder On Switch Input
4 NC Output No Connection
5 MARK* Input Mark Switch Input
7 PADV* Input Paper Advance Switch Input
6 GND Output Ground
8 RECANODE Output Recorder on LED Anode
9 VOLDN* Input Volume Down Channel 1 Switch Input
10 CANCEL Input Alarm Cancel Switch Input
11 VOLUP* Input Volume Up Channel 1 Switch Input
12 VOLDN2* Input Volume Down Channel 2 Switch Input
13 PWRSWITCH Input Power Switch Input
14 VOLUP2* Input Volume Up Channel 2 Switch Input
15 GND Output Ground for LEDS and Switches
16 MENU Input Menu Switch Input
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