Figure B-13 Autopilot/Flight Director Interconnect - Century - Garmin GI 275 Installation Manual

NOTES
USE MIL-T-27 TYPE TF5S21ZZ TRANSFORMER TRIAD MAGNETICS P/N SP-66.
1
FLIGHT DIRECTOR WIRING TO EXISTING ADI MUST BE DISCONNECTED IF THIS INDICATOR IS USED AS A
STANDBY INSTRUMENT FOR THE GI 275. IF THIS INDICATOR IS BEING RELOCATED TO THE
2
CO-PILOT'S SIDE, WIRING MAY BE CONNECTED IN PARALLEL TO THIS ADI. THE WIRING TO THIS ADI MUST
BE CONNECTED IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS.
IF THE 52C77/-2/-3/-4 ADI IS CONNECTED WITH THE GI 275, THE 18.0 OR 30.0 Ω RESISTOR MUST NOT BE
3
INSTALLED.
IF THE FLIGHT DIRECTOR IS BEING DISPLAYED ON THE CO-PILOT'S ADI, THIS FLIGHT DIRECTOR
ALIGNMENT MUST BE CORRECTLY ADJUSTED IN ACCORDANCE WITH THE MANUFACTURER'S
4
INSTRUCTIONS PRIOR TO MAKING ANY ADJUSTMENTS TO THE GI 275.
ENSURE ANY JUMPERS AT CD185 PINS 8, 9, AND 17 ARE REMOVED TO CONFIGURE COMPUTER FOR
5
NSD 360A.
USE RESISTOR P/N RE65G() OR RE65N() (PER MIL-PRF-18546) CHASSIS MOUNT POWER RESISTOR
MEETING THE FOLLOWING SPECIFICATIONS:
•
18.0 Ω FOR CENTURY IV AND 14 VDC SYSTEMS WITH CENTURY 41 AND 2000, OR
30.0 Ω FOR 28 VDC SYSTEMS USING THE CENTURY 41 OR 2000 AUTOPILOTS
6 •
MINIMUM POWER RATING OF 10 WATTS
•
MAXIMUM TOLERANCE OF ± 5%
LOCATE RESISTOR ON METALLIC SECONDARY STRUCTURE WITHIN INSTRUMENT PANEL AREA NEAR
GI 275.
DIODE INSTALLED FOR CENTURY IV SYSTEM ONLY. USE 1N4444 OR EQUIVALENT.
7
FOR CENTURY 41 SYSTEMS ONLY.
8
FOR CENTURY IV SYSTEMS ONLY.
9
THE 5 kHz SIGNAL IS ONLY REQUIRED FOR AC AUTOPILOTS.
10
SPLICE BOTH WIRES TOGETHER INTO PIN B OF CD33 TO AMP.
11
USE MIL-T-27 TYPE TF5S21ZZ TRANSFORMER TRIAD MAGNETICS P/N SP-13.
12
FOR CENTURY 21 AUTOPILOT: IF OPTIONAL AP DISC SWITCH IS INSTALLED, REMOVE THE EXISTING
13
CONDUCTOR FROM CD194 – 11. CONNECT CD194 – 11 TO THE GI 275 RELAY WIRING AS SHOWN.

Figure B-13 Autopilot/Flight Director Interconnect - Century

190-02246-10
Rev. 11
Sheet 6 of 7
GI 275 Part 23 AML STC Installation Manual
Page B-36