Audio international CTP-201-01-1 User manual
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 1 of 19
Document Revision History
Rev. Level Date Description
IR 07/2001 Initial Release
A 09/2002
Updated Wiring Requirements, Corrected Unit
Dimensions, Updated Reference Drawings, and
Corrected “Program” Button Description
B 12/2004 Updated Outline Drawing, removed DO-160 references
Reference Documents
Document # Description
523011 Rev IR1 CTP-201-01-x Outline Drawing
Service Bulletin List
Service
Bulletin # Subject Manual
Revision
Revision
Date
Table of Illustrations
Section # Description Page #
2.2 Typical Application 5-6
4.2 Front Panel Illustration 13
7.0 Reference Drawings 18-19
PROPRIETARY INFORMATION NOTICE: Despite any other copyright notice, this document
and information disclosed herein contains confidential, proprietary designs owned by Audio
International, Inc. Neither this document nor the data contained herein shall be reproduced,
used, or disclosed to an
y
one without the written authorization of Audio International, Inc.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 2 of 19
Table of Contents
Section Description Page
1.0 General Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Purpose of the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Operational Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Typical Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Cautions &Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7 Mating Connector Information . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.8 Pinout Assignments and Descriptions . . . . . . . . . . . . . . . . . . . 12
3.9 Post Installation Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 General Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Front Panel Button Functionality . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4 Cassette Tape Player Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5 Handling Cassette Tapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.0 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 General Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . 16
5.2 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Instructions for Continued Airworthiness . . . . . . . . . . . . . . . . . 17
6.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.0 Reference Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 4 of 19
CTP-201-01-x
Cassette Tape Player
1.0 General Information
1.1 Introduction
This manual contains information for the proper installation and operation
of Audio International’s (AI) Cassette Tape Player, Model # CTP-201-01-x.
The “-x” suffix in the model number designates the type of connector
utilized; “-1” = Positronic and “-2” = D-Subminiature. Also included are
mechanical and electrical characteristics of the unit.
1.2 Purpose of the Equipment
Audio International’s CTP-201-01-x is a compact, high-quality cassette
tape player specifically designed to meet the special requirements of
aircraft use. This cassette player has a high quality output and a full range
frequency response of 30 Hz to 18 kHz. The unit will interface with the
audio entertainment system to provide audio enjoyment at several
locations throughout the cabin via headphones or cabin speakers.
An optional cover bezel allows customization of the unit to other décor,
P/N CTP-201CB-0x. The removable bezel must be ordered at the time of
order placement.
CTP-201-01-x can be mounted in a cabinet or bulkhead. A unique
strapping feature allows up to four (4) similar devices to be used in the
same system at the same time while maintaining independent control.
1.3 Operational Features
Operates directly from +28 VDC
Optional infrared remote controllable
Full range (30 Hz to 18 kHz ±3 dB) frequency response
Customized front bezel finish capabilities
Incorporates an “auto reverse” feature that will automatically switch
tape direction
Backlit LCD indicator
Standard “line out” audio output – no volume control
Easy to mount and connect
AI proprietary RS-485 data bus compatible
Compact, lightweight package
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 5 of 19
1.4 Optional Equipment
CTP-201-01-x can be optionally controlled by infrared remote or AI’s touch
screen panel. Digital codes allow the unit to interface with an infrared
handheld remote via an infrared receiver, IFR-9A or IFR-485. Multiple
units can be controlled independently using available programming pins.
Playback options with remote or touch screen include stop/eject, fast-
forward, rewind, track repeat, and pause.
The removable front cover bezel, CTP-201CB-0x, must be ordered at the
time of order placement.
Contact your AI representative for details.
2.0 Application
2.1 Introduction
The CTP-201-01-x is a cassette tape player that will accept a +5 VDC
infrared digital input and AI’s proprietary RS-485 two-wire serial data bus
input. The unit operates between +14 and +28 VDC. The audio output
level is internally adjustable at 2 VRMS with a 4 kΩ, MINIMUM, load.
Stereo channel separation is less than 100 dB.
2.2 Typical Application
2.2.1 This system is fully compatible with Audio International’s proprietary
RS-485 digital data bus system. It can be configured for IR remote
control utilizing AI’s remote control unit AI-RCx-17xxxx and
IFR-485.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 6 of 19
2.2.2 The unit can also be configured for IR remote control utilizing AI’s
remote control unit AI-RCx-17xxxx and IFR-9A. This following
configuration utilizes a +5 VDC digital logic level for activation of
infrared commands.
2.2.3 The unit can also be controlled from a Touch Screen or remote
panel control (i.e. entertainment control panels). The panels are on
AI’s proprietary RS-485 digital data bus system and configured to
control the operational features of the CTP-201-01-x.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 7 of 19
3.0 Installation
3.1 Preparation
3.1.1 Careful consideration of the location of this and all other modules is
necessary. Some of the items to be considered in the design and
layout of the aircraft cabin include:
• Space
• Available power supply
• Environmental conditions (temperature, humidity, etc.)
• Length of cable runs
• Location of other aircraft systems (oxygen delivery)
3.1.2 The CTP-201-01-x shall be installed to conform to the standards
designated by the customer, installing agency, and existing
conditions as to the unit location and type of installation.
3.1.3 Mounting screws are required to secure the unit. Mounting points
will vary depending on the kit used. Refer to Section 7.0,
Reference Drawings, for mounting hole diameters and
configurations.
3.1.4 All headphone amplifiers and line level amplifiers should be located
no more than three (3) feet away from source equipment. Long
low-level audio runs may introduce noise into the audio signal.
3.1.5 The installing agency shall supply and fabricate all external cables
to the CTP-201-01-x. The length and routing of external cables
shall be carefully studied and planned before attempting installation
of the unit. Allow adequate space for installation of cable and
connectors. Mating connectors are the responsibility of the
installing agency. Correct pin assignments as outlined in Section
3.9 are the responsibility of the installing agency.
3.2 Unpacking and Inspection
3.2.1 Carefully open the packaging and remove the CTP-201-01-x.
Verify that all components have been included in the package per
the packing list. Inspect the unit for shipping damage.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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3.2.2 If damage has occurred during shipping, a claim should be filed
with Audio International WITHIN 24 hours and a Return Request
Authorization Number shall be obtained from AI by contacting the
Repair Department at 501.801.0640. Repackage the unit in its
original packaging materials and return it to AI following instructions
given by the AI representative. Refer to the front cover of this
manual for address. If no return is necessary, retain the packing
list and the packing materials for storage.
3.3 Cautions & Warnings
3.3.1 It is important to do a pin-to-pin power and ground check on all
connectors. Ensure that power and ground are applied only where
specified. Damage to the unit may result if power or ground is
applied to the wrong points.
3.3.2 DO NOT connect or disconnect the unit while power is applied.
3.3.3 DO NOT remove any factory-installed screws. Damage to the unit
may result and void any warranties.
3.3.4 DO NOT drop the unit or subject it to strong shock. The unit
contains glass parts that may break or crack.
3.3.5 DO NOT place foreign objects into openings. Contact with foreign
objects may result in dangerous voltage or electric shock.
3.3.6 DO NOT place near strong magnetic fields, radiators or other heat
sources.
3.3.7 DO NOT use this unit other than for its intended purpose. Doing so
might lead to electric shock or injury.
3.3.8 DO NOT use near water, moisture, or volatile sprays. Do not use
any type of solvent when cleaning (surface damage may occur).
3.3.9 ESD (Electro Static Discharge) guidelines shall be followed.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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3.4 Wiring Requirements
3.4.1 Introduction
The installing agency shall supply and fabricate all external cables.
The length and routing of external cables shall be carefully studied
and planned before attempting installation of the equipment. Allow
adequate space for installation of cable and connectors. Avoid
sharp bends and placing cables near aircraft control cables.
Maintain a minimum clearance of three (3) inches from any control
cable. If wiring is run parallel to combustible fluid or oxygen lines,
maintain a separation of six (6) inches between the lines.
3.4.2 Power Wires
Audio International recommends that power and ground wires be
22 AWG minimum. The chassis shall be electrically bonded to the
airframe structure by a conductive mounting point with <0.1 Ω
resistance using <50 Ωimpedance cable. Aluminum wool, nylon
webbing impregnated with aluminum oxide abrasive or fiber bristle
brushes are the approved tools for removing anodized surfaces at
mounting point where the bonding wire is attached. Power and
Ground wires shall be in accordance with NEMA WC 27500 or
equivalent. Protect power wires with circuit breakers or fuses
located close to the electrical power source bus.
3.4.3 AI’s Proprietary RS-485 Data Bus
3.4.3.1 The CTP-201-01-x is designed to interface with other
Audio International equipment via AI’s proprietary
RS-485 serial data bus. The data bus shall be
implemented using a twisted shielded pair cable in
accordance with NEMA WC 27500 or equivalent. The
wire size for the conductors in this cable shall be 22
AWG, MINIMUM. The shield shall be connected
everywhere a shield pin is provided. Shield terminations
shall be made as close to the connector pin as possible.
3.4.3.2 Refer to AI document 650007 for RS-485 Serial Data Bus
design architecture.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 10 of 19
3.4.4 Analog Audio Lines
To reduce the opportunity for electrically-induced ground-loop
noise, Audio International recommends that all analog audio wire
connections be twisted shielded cable with the shield properly
grounded at the source (ideal practice) and floating at the load end.
If shield cannot be grounded at the source, then ground at the load
end with the source end floating. The shield for each cable length
shall be terminated at one end only. Terminating both ends of a
shield is NOT recommended, and highly increases the likelihood of
creating unwanted electrically-induced ground-loop noise into the
analog audio signal. Twisted shielded cable shall be 22 AWG
(minimum) for low-level audio signals or 16 AWG (minimum) for
speaker-level audio signals and shall be in accordance with NEMA
WC 27500 or equivalent. Individual conductor wire gauge in each
twisted shielded cable assembly shall increase accordingly with
analog audio signal type and any significant increases in cable
routing.
3.5 Physical Characteristics
3.5.1 The CTP-201-01-x shall NOT be mounted on its side, at an angle,
or in an inclined position. Refer to Section 7.0 for unit dimensions
and attachment points.
3.5.2 DO NOT insert any screw more than 0.25" into the case. Mounting
holes on the unit provide multiple anchoring points. These
threaded inserts do not have physical stops. Care should be taken
not to penetrate the outer casing with any screw with the length
larger than 0.25". This could result in serious damage to the player.
3.5.3 When mounting the unit, allow sufficient space for mating
connectors.
3.5.4 Allow a MINIMUM of one (1) inch of air space around the unit to
allow for proper air circulation.
3.5.5 This unit has an internal fan and ventilation holes in the chassis for
cooling. Installation recommendation requires 1-inch spacing from
other components and structures except the mounting surface for
which the unit should be in direct contact.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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3.6 Electrical Characteristics
3.6.1 Electrical Specifications:
Electrical Power 500 mA at +28 VDC
Operating Voltage
Range
+18 to +32 VDC
+28 VDC NOMINAL
Frequency Response 30 Hz to 18 kHz (±3 dB)
Data Bus Type AI Proprietary RS-485
Audio Output 2 VRMS
4 kΩ, MINIMUM, load
Stereo Channel
Separation <100 dB
Backlighting/
Digital Display Green
Infrared Signal Input +5 V digital logic level
3.6.2 The CTP-201-01-x utilizes one (1) 15-pin connector for electrical
connections. This connector provides power, left/right audio output,
data bus control, infrared input, and three (3) infrared strapping pins
for alternate configuration of infrared digital command codes.
3.6.3 Standard configuration requires no infrared strap pins to be
connected. Each different type of AI source equipment can be
configured to accept one (1) of four (4) different sets of infrared
codes. To change the code settings, connect one (1) of the strap
pins to the strap common (never connect more than one (1) strap
pin to the strap common). Three (3) strap pins are available to
allow the infrared codes to be configured.
3.7 Mating Connector Information
Model # Mating Connector
CTP-201-01-1 RD15F10JVL0
CTP-201-01-2 DAMA-15S
D20418-2 Female Screwlock
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3.8 Pinout Assignment and Descriptions
Pin # Description
1 + 28 VDC
2 Ground
3 R+ Audio Output
4 R- Audio Output
5 L+ Audio Output
6 L- Audio Output
7 Data Bus (A)
8 Data Bus (B)
9 Infrared Input +
10 Infrared Input -
11 IR Strap 2
12 IR Strap 3
13 IR Strap 4
14 IR Strap Common
15 Reserved
3.9 Post Installation Test
3.9.1 Verify +28 VDC power has been connected to the unit. The audio
signal output of the unit is generally connected to cabin speaker
systems in addition to headphone locations. Verify all connections
before supplying power to the unit.
3.9.2 Load the CTP-201-01-x with a cassette tape. Use the front panel
controls or the handheld remote control unit to select
PLAY/PAUSE . Verify audio can be heard through the
speaker/headphone system. Verify that audio can be heard
through all proper channels.
3.9.3 Referring to Section 4.0, Operation, ensure that all controls function
as described (i.e. FAST FORWARD advances through the tape,
STOP halts playback and other functions, etc.)
3.9.4 Ensure the unit EJECTS properly.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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4.0 Operation
4.1 General Overview
4.1.1 The CTP-201-01-x can be operated via front panel buttons or
optionally controlled by infrared remote or AI’s touch screen panel.
Digital codes allow the unit to interface with an infrared handheld
remote via an infrared receiver, IFR-9A or IFR-485. Multiple units
can be controlled independently using available programming pins.
4.1.2 Playback options with front button control, remote, or touch screen
include stop/eject, fast-forward, rewind, track repeat, and pause.
4.1.3 Before setup or playing a cassette tape, ensure that aircraft power
is applied to the player. There are no on/off controls on the unit.
4.1.4 Activate speakers from the appropriate control panels. Audio will
be supplied through headphones and/or speakers per system
design.
4.1.5 When the unit powers up, it will sequence through a series of
diagnostics. When it is finished, the CTP-201-01-x is ready for use.
4.2 Front Panel Controls
ILLUSTRATION OF CTP-201-01-x FRONT PANEL
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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The names and functions of the CTP-201-01-x are as follows:
Stop/Eject button – Press the button to stop cassette playback. Press the
button a second time to eject the cassette from the cassette slot.
Play/Pause button – Press the button to play a cassette tape. Press the
button a second time to pause the cassette playback. The button can be
pressed again to return to playback.
Rewind button – Press the button to locate the beginning of the current
track. The tape will rewind to the beginning of the current track and
automatically start playback.
Fast-Forward button – Press and HOLD the fast-forward button to locate
the beginning of the next track or to fast-forward the cassette. Release
the button to play the cassette at any point.
Program button – Switches between Side A and Side B of the cassette.
4.3 Front Panel Button Functionality
Press the REWIND and FAST-FORWARD buttons simultaneously
to select a music favorite. The cassette tape will automatically play the
next selection of the tape.
Press the STOP/EJECT and PLAY/PAUSE buttons simultaneously to
switch the metal tape indicator on and off and to select the tape type. The
digital display will indicate when METAL is ‘ON’. For normal tape (type I)
playback, the METAL indicator should be in the ‘OFF’ position. For Cr02
(type II), FeCr (type III), and Metal (type IV), the METAL indicator should
be in the ‘ON’ position. Selecting the wrong tape type may cause sound
quality to suffer.
To load a cassette into the cassette slot, insert a cassette with the tape
exposed to the right, into the cassette slot. Press the STOP/EJECT to
accept the tape. The CTP-201-01-x will accept the cassette and gently
pull the tape into the unit.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
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Once the cassette is inserted, the digital display will read the function (i.e.
STOP, PLAY, TAPE, etc.) Playback will begin automatically. The unit will
reverse direction automatically when the unit reaches the end of the
cassette.
4.4 Cassette Tape Player Care
4.4.1 If the front panel gets dirty, turn off the power and wipe the panel
with a dry, lint free, silicon cloth.
4.4.2 The cassette slot in the faceplate should be cleaned periodically as
accumulated dust can scratch the surface of the cassettes when
inserted or removed from the player. A dry cotton swab is
recommended for this cleaning. (Clean only the outer, exposed
surfaces).
4.4.3 Magnetic powder and dust accumulation on the tape head can
cause noise and deterioration of sound quality. To clean the tape
head, use a commercial cleaning tape designed for this purpose.
4.5 Handling Cassette Tapes
4.5.1 DO NOT play cassettes with slack tape spools. Slack tapes can
become entangled around the capstand and/or pinch rollers. If the
spool is slack, re-tension the tape by inserting a pencil in one of the
spools and ‘tightening’ the tape.
4.5.2 DO NOT play deformed cassettes or cassettes with loose labels.
The cassette may become lodged inside the unit or cause it to
malfunction.
4.5.3 DO NOT store cassettes in hot locations or expose to direct
sunlight.
4.5.4 DO NOT leave cassettes in the unit when not in use. Tapes may
stick to the tape head and cause a malfunction.
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5.0 Troubleshooting
5.1 General Troubleshooting Procedures
• Recheck +28 VDC power is applied to the proper pins on the unit. Use
a voltmeter to verify correct level.
• Reset by removing power from the unit for at least one (1) minute and
reapply power.
• Recheck all connections to the unit for security. Check all harness
runs for possible pinching. Recheck all pinouts for application
accuracy.
• Utilizing a voltmeter, oscilloscope, or other voltage instrument, verify
proper input voltage on the data bus pins. Typical measurements with
no device(s) on bus transmitting are as follows:
A-to-Ground : 4.0 to 4.5 VDC
B-to-Ground : 0.1 to 1.0 VDC
If any device is transmitting (i.e., holding bus active), then these typical
measurements would be reversed for the A-to-Ground and B-to-
Ground measurements. This troubleshooting tool can help indicate a
data bus lockup. If this occurs, remove the data bus from all other
equipment one piece at a time. As each is removed, check the bus
status to see if it is now functioning properly. Once you have removed
the piece or pieces of offending equipment, disconnect power and then
reconnect everything but the suspect component, reapply power and
test the functionality of the unit.
• The RS-485 data bus is a bi-directional bus that does not have a ‘bus
controller’. The bus uses a differential digital signal that will transmit
only when commands are entered via switch selection or other system
synchronizing commands. The “A” leg of the bus is HI and the “B” leg
LOW.
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 17 of 19
5.2 Troubleshooting Chart
Problem Possible Cause Solution
No sound Unit is improperly
installed
No tape in source unit
Audio system not
powered or active
• Verify +28 VDC power and video
input is present
• Insert tape in source unit
• Verify audio system is in active
mode
• Contact AI Product Support
Poor or distorted
sound quality
Tape head dirty
Incorrect tape selection
• Clean the head per Section 4.4
• Recheck tape type per Section
4.3
• Contact AI Product Support
Cassette cannot be
loaded
Cassette is deformed
Cassette has been
inserted incorrectly
• Replace cassette tape
• Reload cassette tape
• Contact AI Product Support
Error messages on
digital display
Unit malfunctioning • Contact AI Product Support
5.3 Instructions for Continued Airworthiness
No periodic scheduled maintenance or calibration is required for continued
airworthiness of the CTP-201-01-x Cassette Tape Player. If the unit fails
to perform to specifications, it must be removed and serviced by a
qualified service facility.
6.0 Specifications
Physical Specifications
Housing Aluminum
Weight Approx 4.0 lb / 1.81 kg
Dimensions*
(l x w x h)
6.48" x 7.17" x 2.3"
16.46 cm x 18.21 cm x 5.84 cm
*All dimensions given with tolerance of ± 0.06" (0.15 cm)
Audio International, Inc. CTP-201-01-x Installation & Operation Manual
Document # 540199, Rev B, 12/2004 Page 18 of 19
7.0 Reference Drawings
The following diagrams show the unit dimensions, mounting locations, and
connector locations for the CTP-201-01-x. All dimensions given with tolerance of
± 0.06" (0.15 cm)
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