Order this information in Print

Order this information on CD-ROM

Download in PDF Format

     

Click here to make tpub.com your Home Page

Page Title: INTERCOMMUNICATION SET, AN/VIC 1(V). Continued
Back | Up | Next

Click here for a printable version

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Combat
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
USMC
   
Products
  Educational CD-ROM's
Printed Manuals
Downloadable Books
   

 



TM  11-5820-890-20-2 1-41 1.13. INTERCOMMUNICATION SET, AN/VIC 1(V). Continued d. Control Box C 2297. C 2297 OFF EXT SIG J904 J901 AUDIO ACCESSORY CONNECTORS J903 J902 INDICATOR LIGHT VOLUME C B ONLY INT A ALL (1)   Circuit Description.  The C 2297 is the driver's control box that is connected to the main junction box. This control box has a MONITOR switch, VOLUME control, SIG EXT OFF switch, an indicator lamp, and a microphone amplifier. Power and control voltages used by the control box are applied to connector J904. Unlike the C 2298 control box, the C 2297 cannot be connected in tandem. Audio accessories are connected to J902 (RAD) or J903 (INT). Connector J902 is used to key a radio.  The radio cannot be keyed from connector J903. Pins A,B,D,and E of J902 and J903 are wired in parallel. Audio signals for the intercom are applied to pins B and E of connectors J902 and J903. EXT mic audio is applied unamplified to MONITOR switch. (2)   Functions of the MONITOR Switch Positions.  Refer to Figure 1-4. The MONITOR switch is used to select the audio and mic circuits to be connected to J902 and J903. The MONITOR switch can select one of five positions. Positions •ALL" and •A" permit control of the bottom RT (RT A). Position •C" permits control of the top RT (RT B). When using a single radio mount the only position that can be used is the •ALL" position. The RT can be keyed from the •A" and •B" positions, but not monitored. (a)    •ALL" Position.  The •ALL" position provides for monitoring of the intercom, all RTs, and control of the bottom RT (RT A). In the •ALL" position, the fixed audio output of all RTs and intercom are applied to pin •L" of connector J904. From pin •L" of J904, the audio is applied to the MONITOR switch. The audio leaves the MONITOR switch and is then applied to SIG EXT OFF switch and VOLUME control. From the VOLUME control, the audio goes to pins B and E of J902 and J903. Audio applied to the SIG EXT OFF switch is stopped when the switch is in the •OFF" position.


Privacy Statement - Press Release - Copyright Information. - Contact Us - Support Integrated Publishing

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business