9914V TAPE UNIT

The display is an 8-\:haracter LED presentation. Data (000 - 007) is sent to the displayfrom output port IC40 and control signals (DAO - DA2, SEL, & DWT) from IC3S. Thedisplay character is selected by signals DAO thru DA2, the chip is selected by SEL, and thecharacter strobed in by WRT (to be stored in RAM until changed again).Signal Port Route Edge Pin000 IC40.2 P6-28001 IC40.5 P6-26002 IC40.6 P6-24003 IC40.9 P6-22004 IC40.12 P6-20DDS IC40.15 P6-18006 IC40.16 P6-16007 IC40.19 P6-14DAO iC3S.2 P6-2DA1 IC3S.5 P6-4DA2 IC38.6 P6-6SEL IC38.9 P6-8DWT IC38.12 P6-72.2.3.10 Loading TapeThe sequence of events when loading tape are described here, the sensors which areinvolved may be checked out by using diagnostic program 45, as described in Section 5.a) InitiationThe loading procedure is initiated by the operator ciosing the loading door, by settingpower on, or by pressing LDIONL (configuration option 04 determines which). Doorclosure is communicated to the processor via IC26.8.If option byte 04 ;s set to MAN ONL, it is necessary to press the operator panel LDIONLbutton to initiate loading.When the loading door is not fully closed at the point of initiating load, then the respectiveIC26 pin is high and a DOOR message is sent to the 8-character display with the loadingsequence inhibited until the hold condition is corrected.SignalEdge pinRouteDestinationLDIONLDOORP6-48P6-10(RN2.3)(R141)IC28.6IC26.8LOCATEDP5-32IC34.1 , IC34.2IC26.695 125456 (Draft Issue D)PCB Descriptions2-7