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Signal Vor 1 In The Rmi #1 And #2 Not Present.
signal vor 1 in the RMI #1 and #2 not present. but in HSI yes signal and not output 28vdc from this ...
signal vor 1 in the RMI #1 and #2 not present. but in HSI yes signal and not output 28vdc from this ...
(Posted by ctorrespadilla7 9 years ago)
Popular Garmin GAD 42 Manual Pages
Maintenance Manual - Page 1
GAD 42 MAINTENANCE MANUAL
GARMIN International, Inc. 1200 E. 151st Street
Olathe, KS 66062 USA 190-00159-01, Revision A
July 2001
Maintenance Manual - Page 2
..., downloaded or stored in any storage medium, for any purpose without the express prior written consent of this manual or any revision hereto is strictly prohibited. Insertion Date
By
GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 1 Rev.
GARMIN International, Inc. 1200 E. 151st Street
Olathe, KS 66062 USA Telephone: 913-397-8200 Dealer Line: 1-800-800...
Maintenance Manual - Page 3
GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 2 Rev. A violation of the EAR may not be subject to a penalty of up to 10 years imprisonment and a fine of up ...
Maintenance Manual - Page 4
... ...4
2.0 REPAIR ...4
3.0 TECHNICAL SPECIFICATIONS 4
4.0 GAD 42 INSTALLATION 4
5.0 GENERAL DESCRIPTION 4
5.1
Analog PC Board 4
5.2
CPU PC Board 5
6.0 BLOCK DIAGRAM 5
7.0 BASIC THEORY OF OPERATION 5
7.1
Power Supplies 5
7.1.1 Power Input Circuitry 5
7.1.2 Main Power Supply 5
7.1.3 Power Supply (+5 V 6
7.1.4 Power Supply (-5 V 6
7.2
Superflag Output Drivers 6
7.3
XYZ...
Maintenance Manual - Page 5
...-density D-subminiature aircraft interface connector provides interfaces to the CPU PC board. Return faulty units to GARMIN for service.
3.0 TECHNICAL SPECIFICATIONS
Technical specifications for the GAD 42 are listed in the GAD 42 Installation Manual.
5.0 GENERAL DESCRIPTION
The GAD 42 Interface Adapter consists of two internal printed circuit board assemblies, the Analog PC Board and the CPU PC...
Maintenance Manual - Page 6
... drivers. The power-input filter is routed directly to prevent high frequencies generated by the power supplies from overvoltage transients is a flyback topology switcher controlled by an inductor and the parallel combination of 100 kHz and producing the following output voltages:
• +20 V • +12 V • -12 V • -20 V • +34 V
GAD 42 MAINTENANCE MANUAL...
Maintenance Manual - Page 7
... and input voltage conditions.
7.1.3 Power Supply (+5 V)
The +5 V power supply is a buck topology switcher controlled by a FET superflag driver switch. A switched capacitor inverter generates the -5 V output from over-voltage is the soft start circuit. GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 6 Rev. These filters serve to the power supply input capacitor. All Z synchro inputs are...
Maintenance Manual - Page 8
..., and also is used as the reference voltage (VREF) for the D/A converters described later.
First is a buffer amplifier: its output is used to two circuits. GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 7 Rev. A DC amplifier provides gain so that is then applied to a differential amplifier. The differential amplifier attenuates the reference-input signals...
Maintenance Manual - Page 9
...-pull drivers are protected from -1 (inverted) through 0 to the VREF input. GAD 42 MAINTENANCE MANUAL P/N ...set by identical circuitry, only the SELECTED CRS DRIVE X/COS and SELECTED CRS DRIVE Y/SIN outputs will be present during certain operating conditions. This element is the same topology as described above, but uses lower power and lower gain push-pull output amps. The ROLL STEERING...
Maintenance Manual - Page 10
...422 I/O level shifter for output by programming code contained in operation. If A is low, and B is configured on a different PNP output transistor. GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 9 Rev. Three...RS-422 I/O are received and transmit directly from the CPU are read through two line driver IC's, and DISCRETE OUTPUTS from internal serial I /O level shifter for this device is ...
Maintenance Manual - Page 11
... from ground. Feedback resistors set the gain, and high-frequency attenuation is provided by capacitors and resistors for the output amp is provided by two resistors. GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page... output data stream from the FPGA to meet ARINC 429 specifications. This results in order to identical output drivers on . A capacitor and resistor form a low-pass filter...
Maintenance Manual - Page 12
... protection for the FET.
8.0 ASSEMBLY DRAWING
Figure 2, page 13, shows an assembly drawing (with part numbers) for the transistor. 7.20 Valid High Inputs
All valid high inputs are located on Q581.... VALID HI input described here. When the HDG_VALID_HI input pin is applied through a resistor. GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Page 11 Rev. When this as a logic high from the CPU...
Maintenance Manual - Page 13
... SPEED ARINC 429 OUT B
DISTANCE INDICATOR CONTROL
FPGA ENCODE LOGIC
SELECTED CRS CONTROL ARINC 561/568 CLOCK ARINC 561/568 DATA
ARINC 561/568 SYNC
DRIVER LEVEL SHIFT
ARINC 561/568 CONTINUOUS CLOCK KING SERIAL DATA KING SERIAL CLOCK KING SERIAL SYNC
GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
Figure 1. GAD 42 Block Diagram
Page 12 Rev.
Maintenance Manual - Page 14
...-00
(2 PLCS)
END PLATE 115-00265-00
SIDE EXTRUSION 135-00007-01 (2 PLCS)
INSULATOR COVER 250-00064-00 (2 PLCS)
BOARD HEADERS 334-00039-00 (3 PLCS)
GAD 42 MAINTENANCE MANUAL P/N 190-00159-01
COVER 115-00266-00 INSULATOR COVER (2 PLCS) 250-00064-00 (REF) INSIDE SURFACE ONLY
SCREW 211-632340-06
(4 PLCS) ANALOG BOARD
012...
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