MD Helicopters 369-500, Maintenance Instructions Manual

Page: 606 / 722

CSP − HMI − 3
MD Helicopters, Inc
.
MAINTENANCE MANUAL
[ Main Menu ]
[ HMI − 3 Book TOC ]
Page ii
Revision 14
97 Contents
The information disclosed herein is proprietary to MD Helicopters, Inc.
Neither this document nor any part hereof may be reproduced or transferred to
other documents or used or disclosed to others for manufacturing or any other
purpose except as specifically authorized in writing by MD Helicopters, Inc.
Copyright
©
1999 − 2016 by MD Helicopters, Inc.
TABLE OF CONTENTS (Cont.)
Para/Figure/Table Title Page
A. Intercommunication System Cleaning 202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Intercommunication System Repairs 203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 201. Typical C-6533/ARC ICS Control Panel Installation 203 . . . . . . . . . . . . .
Initial Installation 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Intercommunication System Initial Installation 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Preparation for Installation 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. Helicopter Equipment Removal 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C. Structural Modification 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D. Footswitch Installation 901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E. ICS Control Panel Installation 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F. Microphone Jack and Mike Switch Installation 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G. -11 Wiring Harness and Relays Installation 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H. Other Wiring Harness Routing 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I. Weight and Balance Data 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 901. Weight and Balance Data 902 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 901. Footswitch Cable Modification 903 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 902. Doubler Installation 904 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 903. Helicopter Modification for Footswitch Installation 905 . . . . . . . . . . . . . .
Figure 904. ICS Control Panel and Ashtray Installation 906 . . . . . . . . . . . . . . . . . . . .
Figure 905. -21 Wiring Harness Routing (Sheet 1 of 2) 907 . . . . . . . . . . . . . . . . . . . . .
97-04-00 Intercommunication System (King) A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description and Operation 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Description and Operation 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A. Modes of Operation (Helicopters with Optional INTERCOM
Mode Select Switch Only) 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B. KMA 24H Audio Control Panel Controls and Indicators 3 . . . . . . . . . . . . . . . . . . . . .
C. KMA 24H Control Panel Technical Characteristics 4 . . . . . . . . . . . . . . . . . . . . . . . . .
D. VOX Sensitivity Level Adjustment 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Controls and Indicators - KMA 24H-70 and
KMA 24H-71 Audio Control Panels 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2. Mode Select Switch and Copilot's Footswitch 5 . . . . . . . . . . . . . . . . . . . . . .
Figure 3. Headphone Audio Selection Chart
(Helicopters with Optional Mode Select Switch Only) 6 . . . . . . . . . . . . .
Troubleshooting 101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. Intercommunication System Troubleshooting 101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. KMA 24H Audio Control Panel Troubleshooting (Dual Installations) 101 . . . . . . . . . . .
Table 101. Troubleshooting ICS System 101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 101. Wiring Diagram - Audio Control Panel KMA-24H
(Sheet 1 of 4) 104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .