SIGMA TEK 1U619-001 User manual

Pub. No.
86M066
Issue
C
SIGMA TEK, INC.
1U619-001 COMM / NAV / DME / ATC
RADIO CONTROL PANEL
INSTALLATION MANUAL

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
Pub. No.
86M066
Page ii Issue C
LIST OF EFFECTIVE PAGES
Original Release .......A ............... July 1993
Revision....................B................ September 1999
Revision....................C ............... October 2002
Subject Page No. Revision
Table of Contents 1 C
General Information 2 C
Installation 3 C
" 4 C
Wiring Diagram 5 C
Leading Particulars 6 C
Outline Configuration 7 C
Pin List 8 C
“ 9 C
CHANGE DESCRIPTION
Revision Change
A Original Release
B Replace all references to 1U619-( ) with 1U619-001. Delete
information on external Cable assemblies. Redo Figure 1 to
show Panel Lighting Buss and J6. Update Figure 2 to latest
configuration. Correct various typing errors. Remove the
word “Operation” from front page title.
C Add power connections to ATC connector in Figure 1

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
Pub. No. 86M066
Page 1 Issue C
TABLE OF CONTENTS
Section Title Page No.
1.0 General Information .......................................................................................... 2
1.1 Introduction ................................................................................................. 2
1.2 Description Of Equipment .......................................................................... 2
2.0 Installation......................................................................................................... 3
2.1 Introduction ................................................................................................. 3
2.3 Unpacking ................................................................................................... 3
2.4 Inspection .................................................................................................... 3
2.4 Installation Requirements............................................................................ 3
2.5 Installation Procedure.................................................................................. 3
2.6 Post Installation Check................................................................................ 3
3.0 Technical Specifications ................................................................................... 6
4.0 Connector Pin List............................................................................................ 8
LIST OF FIGURES
Title Page No.
Figure 1 Installation Wiring Diagram....................................................... 5
Figure 2 Outline Configuration ................................................................ 7

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
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1.0 GENERAL INFORMATION
1.1 INTRODUCTION
This manual contains operation and installation information for the 1U619-001COMM / NAV /
DME ATC Control Panel manufactured by Sigma Tek, Inc., 1001 Industrial Road, Augusta,
Kansas 67010. The 1U619-001 Control Panel is designed specifically to replace older
mechanical Control Panels installed in various 500 series Citation Jets manufactured by Cessna
Aircraft Company.
1.2 DESCRIPTION OF EQUIPMENT
The 1U619-001 Control Panel is designed to provide remote tuning of two VHF COMM
Transceivers, two VHF NAV / DME Receivers and one or two Air Traffic Control Transponders.
The Control Panel is capable of tuning within a VHF COMM frequency range of 118.00(0) to
136.990 MHz in 25 KHz or 8.33 KHz increments (switch selectable). An optional extended
tuning range from 137.00(0) to 151.97(5) MHz in 25 KHz increments is available. The VHF
NAV frequency range is 108.00 to 117.95 MHz in 50 KHz increments. The capability of pre-
selecting frequencies for both the NAV and COMM provide a single level of memory. Up to
Ten (10) additional memory channels can be stored and retrieved with the “MEM” buttons on the
Control Panel. Audio Volume controls with integrated power Off switch are available for both
COMM and NAV radios. Other ancillary functions incorporated on the Control Panel are;
Squelch On/Off, Comm Test, Marker Sensitivity Hi/Lo, Nav Test, Transponder Ident, Test,
Normal/Standby/Lo, Altitude Reporting On/Off and Transponder 1 or 2 select.
Note: A small toggle switch Guard Plate is attached to all 1U619-001 units before
shipping. In installations that utilize only one (1) Transponder Radio, this Guard
Plate should remain attached to the Control Panel. Those installations that
contain two (2) Transponder Radios require the removal of this Guard Plate. This
will allow the selection of either Transponder 1 or 2.
The Control Panel has five (5) dual line, five and a half (5½) digit, Liquid Crystal Display
modules. The displays offer a high degree of readability in bright sunlight, and are backlit for
low ambient light viewing. The Transponder display is “masked” to show only the top display
line.
The Comm & Nav displays are divided into two (2) lines. The top line is referred to as the
"Active" display (or frequency), while the bottom line is referred to as the "Pre-Select" display.
Frequency updating is performed by tuning the knobs associated with the display above it. All
updates target the bottom display line. The Pre-selected frequency is activated by pressing the
Transfer (TFR) switch on the tuning knob stack.
The 1U619-001has an integrally lighted plastic panel which includes all pertinent nomenclature
required to identify the function of each control. Dimming is controlled by the aircraft 5 volt DC
dimming buss accessed through the rear connector. The nomenclature is clearly visible in both
low and high ambient light conditions.
Internal circuitry of the Control Panel is comprised of five (5) independent Modules, one for each
radio. Each Module is similar in construction, containing three (3) electronic printed circuit
board (PCB) assemblies and a back plane circuit board. One electronic PCB assembly, which is
duplicated in all five Modules, is the micro controller (MCU) board. This board controls the

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
Pub. No. 86M066
Page 3 Issue C
overall operation of the radio and functions associated with the Module. A second duplicated
PCB assembly is the power supply (PWR) board which provides all necessary voltages for the
Module electronics. The NAV and ATC Modules contain a third PCB assembly which serves as
the interface board to the NAV and ATC radios. A third PCB assembly within the COMM
Modules provides an interface with the COMM radios using Collins’ Serial Data Buss (CSDB).
2.0 INSTALLATION
2.1 INTRODUCTION
Although the 1U619-001Control Panel is designed to meet the highest levels of quality and
performance, it can only attain those standards when properly installed. This section provides the
user with practical guidelines to assist in the planning and installation of the 1U619-001in the
flight deck.
2.3 UNPACKING
Use care when unpacking the Control Panel from the shipping carton to prevent damage to the
contents. It is also good practice to save the carton and interior packing material until the unit
has been satisfactorily installed in the aircraft. The original packing material should be used in
the unlikely event that it is necessary to return the unit to the factory.
2.4 INSPECTION
A visual inspection of the Control Panel should be performed to insure that physical damage has
not occurred during shipment. Look over the front of the panel for any chips or scratches. This
includes the displays and all controls. All of the controls should be rotated, pushed or toggled to
ensure proper mechanical operation. The metal cover should not show any dents, and should be
secure. The rear connectors should not show any signs of being damaged along the
circumference. The pins should be visually inspected to insure they are not damaged or bent.
2.4 INSTALLATION REQUIREMENTS
This Control Panel is intended for use in a cockpit environment. The control panel is mounted to
the instrument panel with seven (7) screws. To ensure proper grounding of unit, all bare metal
mounting surfaces must be clean and free of any contaminants, debris or corrosion.
2.5 INSTALLATION PROCEDURE
Connect the five (5) circular connectors to the appropriate mating connectors on the back of the
Control Panel. J1 and J2 should be connected to the COMM transceivers, J3 and J5 should be
connected to the NAV / DME receivers, and J4 should be connected to the ATC transponder.
All five (5) connectors are keyed to ensure proper connection.
After the connectors have been checked for successful mating, place the Control Panel in the
opening provided for it. Using the seven (7) screws, securely fasten the unit.
Note: Connector J6 on the 1U619-001 Control Panel is not used in this installation. This
connector has a metal cover installed, which should not be removed.
2.6 POST INSTALLATION CHECK

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
Pub. No. 86M066
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Apply power to the 1U619-001Control Panel and the radios. The displays should show the last
frequencies selected when the Control Panel was last powered down. The Comm displays should
show frequencies within the range of 118.00 to 136.97 (or 151.975) MHz. The Nav display
should show frequencies of 108.00 to 117.95 MHz. The transponder display should read 0000 to
7777.
To check the Control Panel and associated systems, any of the five (5) TEST switches may be
activated. This should cause the activation of all pertinent display segments on the Control
Panel. In addition to activating all display segments, the TEST function should also illuminate
the corresponding indicator.
Turn all knobs, and ensure that the appropriate display line is being updated properly. Select
frequencies known to contain information. Verify that the outer (or small) knob operates the
fractional portion of the display while the large, inner knob updates the whole values. A
clockwise rotation of the knobs should cause the frequency to increment, while a counter
clockwise rotation should result in the frequency being decremented.
After selecting the desired frequencies, press the TFR switch to swap the values from Pre Select
to Active (COMM and NAV only). The associated radio should tune to the frequency shown in
the Active display.
A small knob marked “VOL” should adjust the volume level of the audio signal. Clockwise
rotation of the VOL knob should increase volume level. The unit is turned off with a full counter-
clockwise rotation.

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
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J6
J6 HAS NO EXTERNAL CONNECTION & IS NOT USED
IN THIS APPLICATION. THE METAL CONNECTOR
COVER SHOULD REMAIN IN PLACE ON J6.
1U619-001 CONTROL PANEL
Freq. Sel. Com.
Freq. Sel. wires
Freq. Sel. Com.
Freq. Sel. wires
DME 2
RADIO
NAV 2
RADIO
Freq. Sel. Com.
Freq. Sel. wires
Freq. Sel. wires
Freq. Sel. Com.
CSDB Buss
CSDB Buss
RADIO
DME 1
RADIO
NAV 1
COMM 2
RADIO
RADIO
COMM 1
28 VDC IN (Transponder #1)
28 VDC IN (Transponder #2)
J4
Z
b
Panel Lighting Buss (5 vdc)
Freq. Sel. Com.
Freq. Sel. wires RADIO
ATC
* See note below
J5
J3
J2
J1
*Two (2) additional wires must be added to the existing aircraft harness (J4) before installing
the 1U619-001 Control Panel. Connector J4 pin “b” must be connected to the 28 vdc power
input to Xponder radio # 1. Connector J4 pin “Z” must be connected to the 28 vdc power
input to Xponder radio # 2 (if installed).
Figure 1
Installation Block Diagram
(Refer to Pin Table for specific pins)

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
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3.0 TECHNICAL SPECIFICATIONS
PHYSICAL CHARACTERISTICS
Dimensions: 7.65” W x 6.90” H x 6.00” D
Weight: 8.0 pounds maximum
Displays: 5½ digit dual line Liquid Crystal Display, White digits on black
background
Panel Color: Gray, FED-STD-595 color # 36118
Knob Color: Black
Nomenclature: White, backlighted
Lighting: Panel & Display - Aviation Blue-White
COMM Transmit (XMT) - Green
ATC Ident - Green
Panel Connectors: J1 (COMM 1) - MS 3122A20-41P (or equivalent)
J2 (COMM 2) - MS 3122A20-41PW (or equivalent)
J3 (NAV 1) - MS 3122A22-55P (or equivalent)
J4 (ATC) - MS 3122A18-32PX (or equivalent)
J5 (NAV 2) - MS 3122A22-55PW (or equivalent)
J6 No Connection
POWER REQUIREMENTS
Primary Power:28 volts DC, @ 100 mA nominal per Module (500 mA total).
Lights: (Panel) 5 volts DC, @ 3.0 A maximum
(Display & Indicators) part of internal supply from Primary Power
PRIMARY FUNCTIONS
VHF COMM Control (1 & 2):
Freq. Range 118.00(0) to 136.97(5) MHz, in 25 KHz increments - default,
(switch selectable) 118.0000 to 136.9916 MHz in 8.33 KHz increments
(118.005 to 136.990 MHz) = Display in 8.33 KHz increments
*Extended Range adds 137.00(0) to 151.97(5) MHz, in 25 KHz increments
Interface Collins Serial Data Buss (CSDB)
Compatible Equip. Collins VHF-21C, VHF-21D, VHF-22C and VHF-22D*
VHF NAV / DME Control (1 & 2):
Freq. Range 108.00(0) to 117.95(0) MHz, in 50 KHz increments
(plus 40 ILS channels)
Interface Arinc 547 NAV receiver (Arinc 410 tuning)
Compatible Equip. Collins VIR-30, VIR-32, VIR-42 and Collins DME-40
ATC Transponder:
Code Range 0000 to 7777
Interface parallel, octal (binary)
Compatible Equip. Collins TDR-90

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
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J1
J3
J5
J2
J4
J6
Figure 2
Outline Configuration

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
Pub. No. 86M066
Page 8 Issue C
4.0 CONNECTOR PIN LIST
J1 (Comm 1) MS3122A20-41P & J2 (Comm 2) MS3122A20-41PW Panel Connector
Pin Description Pin Description
A-P spare Z Audio In Hi
R “B” Serial Data In a Audio Out Arm
S “A” Serial Data In b Audio Common Lo
T, U spare c Power On/Off In, 28 vdc
V “A” Serial Data Out d Power On/Off Out, 28 vdc
(internal pwr)
W “B” Serial Data Out e-s spare
X Serial Data Shield t Chassis Gnd (Internal pwr return)
Y reserved (Freq. Select Common)
J3 (Nav / Dme 1) MS3122A22-55P & J5 (Nav / Dme 2) MS3122A22-55PW Panel Connector
Pin Description Pin Description
A NAV 10 MHz WireA a Power On/Off Out, 28 vdc (internal
pwr)
B NAV 10 MHz WireE b-f spare
C NAV 1 MHz WireA g NAV Test return ground
D NAV 1 MHz WireB h spare
E NAV 1 MHz WireC i Chassis Gnd (Internal pwr return)
F NAV 1 MHz WireD j DME 10 MHz WireA
G NAV 1 MHz WireE k DME 10 MHz WireE
H NAV 100 KHz Wire A m DME 1 MHz Wire A
J NAV 100 KHz Wire B n DME 1 MHz Wire B
K NAV 100 KHz Wire C p DME 1 MHz Wire C
L NAV 100 KHz Wire D q DME 1 MHz Wire D
M NAV 100 KHz Wire E r DME 1 MHz Wire E
N NAV 10 KHz Wire B s DME 100 KHz Wire A
P NAV 10 KHz Wire C t DME 100 KHz Wire B
R NAV Frequency Select Common u DME 100 KHz Wire C
S ILS Energize v DME 100 KHz Wire D
T Marker Beacon Sensitivity Hi w DME 100 KHz Wire E
U Marker Beacon Sensitivity Common x DME 10 KHz Wire C
V NAV Test y spare
W NAV Audio In Hi z DME Frequency Select Common
X NAV Audio Out Arm AA spare
Y NAV Audio Out Common thru
Z Power On/Off In, 28 vdc HH spare

1U619-001 COMM / NAV / DME / ATC CONTROL PANEL
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J4 (ATC Transponder) MS3122A18-32PX Panel Connector
Pin Description Pin Description
A Code Select Wire B (A1) S Ident
B Code Select Wire C (A2) T Transponder #1 On
C Code Select Wire D (A4) U Transponder #2 On
D Code Select Wire E (B1) V Lo Sensitivity
E Code Select Wire F (B2) W Reply (5 Volts)
F Code Select Wire G (B4) X Reply return
G Code Select Wire J (C1) Y spare
H Code Select Wire K (C2) Z 28 VDC Power In (Transponder
#2)
J Code Select Wire L (C4) a Hi (28 VDC) / Lo (0) Indicator
Logic
K Code Select Wire N (D1) b 28 VDC Power In (Transponder
#1)
L Code Select Wire O (D2) c-f spare
M Code Select Wire P (D4) g 5 VDC Panel & Display Lights
N Code Select Common h spare
P Altitude Reporting j Chassis Gnd (Internal pwr return)
R Test
J6 (No Connections) This connector is not used in this installation