10: Display Board
PRC1099A-MS 10-7
10.3 Component Locations, Schematics, and Parts List
This section provides a component location diagram, schematic and parts list
for the Display board.
8 CWKEY Connects a CW key device connected to
either front panel Audio connector pin E to J1
pin 15 to ground to activate CW tone
oscillator on the Audio/Filter board.
9 PTT Connects a handset or headset PTT
connected to the front panel Accessory
connector pin C or to either Audio connector
pin C to J1 pin 16 to activate PTT for
transmitting.
10 FPLITE Connects onboard Q1 emitter to ground
through the front panel
MODE switch LITE
position to energize LCD backlight.
Table 10-4 J4 Connect Pin Assignments (continued)
Pin Signal Description
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