Table 3-1. PADS Test Set Controls, Indicators, and Connectors

ARMY TM 5-6675-238-14 MARINE CORPS TM 08839A-14/1 Table 3-1. PADS Test Set Controls, Indicators, and Connectors — Continued Control, indicator, or connector Function Tape reader, art no. 877406-2 (figure 3-2.1) SRCH/HOME switch SPL/LOOP switch LED display R/L switch FAST/SLOW switch TIME/HOURS INPUT/OUTPUT connector +28 V DC fuse indicator 115 V AC fuse indicator Buffer Unit (figure 3-3) Connector 21J1 Connector 2112 J1 Momentary switch for both functions. SEARCH position al- lows return of tape to exact position of the character at the 1/0. This operation is functional only when tape reader has stopped. SEARCH mode automatically places tape reader in loop mode during character search. Tape reader will return to spool mode when search is complete. The HOME posi- tion returns the tape to the exact read start position, This function is operational in either direction and may be used for rewind. A HOME position is established by lifting read head cover and closing. The character under the read head at this time is the HOME character In SPL position, tape reader is ready for operation in the spooler mode. The LOOP position provides for tape reader operation with a loop or unspooled section of tape A 10-segment indicator LED display provides both fault information and data monitoring. During normal operation, indicator 1 thru indicator 8 displays the data present at the 1/0. Indicator 10 indicates that the tape reader is ready for operation. This indicator will light after a short delay when the tape reader is turned on. If indicator 10 flashes after power is applied, a fault is indicated. Most right indicator is number 1 and most left indicator is number 10. Indicator 9 is not used Provides manual drive right or manual drive left. Tape reader will drive in direction selected as long as switch is held Selects rate for tape reader operation. FAST position allows reader operation up to 600 characters per second. SLOW position allows tape reader operation of 125 characters per second Indicates total on time for tape reader Provides power, control, and data signals connection between tape reader and SPU Lights when fuse in + 28V line has blown Lights when fuse in 115 VAC line has blown Provides control signal connection between buffer unit and SPU Provides control signal connection between buffer unit and computer Change 1 3-6.1/(3-6.2 blank)