Page 2 - BLOCK DIAGRAM THEORY OF OPERATION; PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-2 RCD:15610M00 Rev 0, Apr/2000 4.2 BLOCK DIAGRAM THEORY OF OPERATION Refer to Figure 4-1 for the following block diagram explanation. The KX 165A Navcom transceiver includes a VHF communication receiver and transmitter, VOR Navigation receiver, glidesl...
Page 3 - COM RECEIVER
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-3 RCD:15610M00Rev 0, Apr/2000 4.2.1 COM RECEIVER Refer to figure 4-2. The front end of the Com receiver employs a dual-gate FET RF amplifier em-bedded in a 4-pole tracking preselector. This RF amplifier FET also provides RF AGC action. A doubly-balance...
Page 4 - THIS PAGE RESERVED
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-4 RCD:15610M00 Rev 0, Apr/2000 THIS PAGE RESERVED PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 5 - Figure 4-2 KX155A NAV/COM Receiver - Main Board Audio Circuitry
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-5 RCD:15610M00Rev 0 Apr/2000 Figure 4-2 KX155A NAV/COM Receiver - Main Board Audio Circuitry Sheet 1 of 2 PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 7 - TRANSMITTER
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-9 RCD:15610M00Rev 0, Apr/2000 4.2.2 TRANSMITTER The transmitter produces an amplitude modulated (AM) signal within the COM BAND frequency range of 118 to 137 MHz. The output power of the signal at the COM ANT is 10 watts minimum. Refer to figure 4-3 fo...
Page 9 - Figure 4-3 Transmitter Block Diagram
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-11 RCD:15610M00Rev 0 Apr/2000 Figure 4-3 Transmitter Block Diagram PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 12 - Figure 4-4 VOR Signal Generation
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-15 RCD:15610M00Rev 0, Apr/2000 Figure 4-4 VOR Signal Generation PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 13 - Figure 4-5 Localizer Signal Generation
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-16 RCD:15610M00 Rev 0, Apr/2000 Figure 4-5 Localizer Signal Generation PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 15 - Figure 4-6 Glideslope
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-18 RCD:15610M00 Rev 0, Apr/2000 Figure 4-6 Glideslope PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 18 - Figure 4-8 CPU Block Diagram
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-22 RCD:15610M00 Rev 0, Apr/2000 Figure 4-8 CPU Block Diagram PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 21 - Figure 4-9 Power Supply Block Diagram
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-25 RCD:15610M00Rev 0 Apr/2000 Figure 4-9 Power Supply Block Diagram PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 22 - Figure 4-11 VOR/LOC Converter Board Block Diagram
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-27 RCD:15610M00Rev 0, Apr/2000 Figure 4-11 VOR/LOC Converter Board Block Diagram PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 23 - VOR/LOC Converter Board
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-28 RCD:15610M00 Rev 0, Apr/2000 4.2.8 VOR/LOC Converter Board Refer to Figure 4-11. The VOR/LOC converter I/O board generates the analog signals needed to interface to an indicator with OBS. External system outputs from the board are TO/FROM flag drive...
Page 24 - Figure 4-11 Front Panel and Display Diagram
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-29 RCD:15610M00Rev 0, Apr/2000 Figure 4-11 Front Panel and Display Diagram PRELIMINARY - SUBJECT TO CHANGE WITHOUT NOTICE
Page 32 - VOR Converter
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-37 RCD:15610M00Rev 0, Apr/2000 U1017-A&B and associated circuitry. The output of the audio filter is then amplified by a gain of 1.6 by U1029-D before passing through the digital potentiometers U1016-B&D. After the potenti-ometers, the signal r...
Page 40 - FRONT PANEL AND DISPLAY MODULE
BENDIX/KING KX 165A NAV/COMM TRANSCEIVER Page 4-45 RCD:15610M00Rev 0, Apr/2000 The Rectifiers/Filters consist of CR1048, C1210, C1311 and C1312 (-200V), CR1051 and C1226 (-12V), CR1059 and C1269 (+9V), and CR1058 and C1252 (+5V). The Current Mode Controller and switch consists of U1036, Q1045 and as...