Specifications UNIT CAPACITY: One ASTRO Digital XTS 3000 or XTS 3500 or DIMETRA MTP Portable Radio DIMENSIONS (L x H x W): 8.8" x 5.7" x 2.7" (223 mm x 143mm x 67mm) WEIGHT: (without portable radio) 2.2 lbs. (1000 g) NOMINAL INPUT VOLTAGE: 13.8 Vdc (negative ground) CURRENT DRAIN:...
Exposure To Radio Frequency Energy National and International Standards and Guidelines Your Motorola Two-Way Radio, which generates and radiates radio frequency (RF) electromagnetic energy (EME), is designed to comply with the following National and International Standards and Guidelines regarding exposure of human beings to radio frequency electromagnetic energy: •...
Operational Warnings W A R N I N G • Vehicles With an Air Bag Do not place a portable radio or install radio communications equipment in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a portable radio is placed in the air bag deployment area and the air bag inflates, the radio may be propelled with great force and cause serious injury to occupants of the vehicle.
Efficient System Operation • DO NOT operate your XTVA unless all RF connectors are properly terminated. • All equipment must be properly grounded according to Motorola installation instructions for safe operation. • All equipment should be serviced only by an authorized technician.
Description General The Motorola ASTRO XTS/DIMETRA MTP Vehicular Adapter (XTVA) is an accessory that adapts XTS and MTP series radios to operate in a vehicular (mobile) environment, and allows in-vehicle battery charging. The XTVA is designed to operate only with the combination of an XTS/MTP series radio and one of the following batteries: •...
These circuits activate whenever the XTVA detects that a radio has been loaded and turned on. The operation and controls of the ASTRO XTS Vehicular Adapter maintain the same functionality as those of an ASTRO Digital XTS or DIMETRA MTP series radio.
Mini-UHF 890 - 960MHz Note: To connect an antenna with a mini-UHF connector to an XTVA with a BNC connector, use connector adapter Motorola Part No. 5880367B28. Optional External The optional HSN1000_ or HSN1006_ 6-Watt Speaker provides 6 watts of audio output power for use in high noise level environments. The...
Installation This section describes the complete installation procedure for the ASTRO XTS/DIMETRA MTP Vehicular Adapter (XTVA) used with XTS/ MTP series radios. Installation includes planning, mounting, and checkout. The XTVA allows an XTS/MTP portable radio to operate similar to a mobile radio while the radio is in the adapter. Read these instructions before installing your XTVA.
• DO use heat-shrink tubing on all splices. • DO ensure that unit cables are not placed under stress, are not exposed to weather, and are not subjected to damage due to engine heat. • DO retain in-line cable fuses when trimming cables to fit. Locate in-line fuses as close as practical to the supply voltage connection.
When possible, mount the console on the floor near the center of the vehicle within easy reach of the operator. Microphone Bracket When possible, mount the microphone bracket on the dash near the operator side of the console. The location should be within easy reach Location of the operator, and it should be convenient to remove and hang-up the microphone in its mounting bracket without interfering with any...
Note: If using the optional hands-free visor microphone, mount the speaker at least 5 feet (1.74m) from, and not in line with, the microphone. Mounting the speaker on the dashboard or rear package tray is not recommended. For optimum radio performance, install the speaker under the dashboard.
Microphone Figure 3 Installing the Visor Microphone For information on connecting the visor microphone to the XTVA, see the XTVA Accessory Connector Installation Manual, Motorola publication 68P81092C83 (included with this manual). Antenna Install the antenna and antenna cable as outlined in the installation instructions supplied with the antenna.
Console Cabling Refer to Figures 4 and 5 before routing or connecting any console cable. The console should be cabled using the following procedure: • This product is designed for a 12-volt, negative-ground system. • Remove the 5-amp fuses from the power cable (red and C a u t i o n yellow wires) before proceeding.
• Disable—Jumper pins 10 and 13 on a standard male DB25-type connector or Motorola P/N NTN8943_, XTVA Accessory Adapter Kit and plug into console jack J5. Optional External The optional external speaker includes a trunnion bracket that permits the speaker to be mounted in a variety of configurations (see Figure 6).
2. Position the external speaker onto the trunnion bracket, and secure it using the wing screws provided. Trunnion Bracket 10-16 x 5/8'' Dashboard Self-Tapping Screw Firewall Console or Floor Hanger Bracket Dashboard Auto Window Trunnion 0.157'' (0.399cm) Bracket Firewall Diameter Mounting Window Mounting Detail...
Anti-Skid Braking Precautions General The following installation suggestions and test procedures are recommended for vehicles with electronic anti-skid braking systems. Installation Suggestions Determine the location of the braking modulator box in the vehicle. This box is located in the trunk of Chrysler Corporation cars, and either in the trunk or under the dash in General Motors and Ford Corporation automobiles.
Check for proper operation of the console, microphone, speaker, RFPA, and radio as described in the User Guide, Motorola publication 68P81088C76. Before placing the radio in the XTVA, check to see that the universal connector cover has been removed from the radio’s universal connector, and an RF adapter is installed.
• In the case where HHCH microphone is used, the up/down volume button on the HHCH controls the speaker volume (the radio and XTVA volume control are disabled). A tone is emitted from the appropriate speaker to aid in determining a comfortable volume setting Circuit Description When reading the following circuit descriptions, refer to the console...
Page 29
The battery voltage and temperature are monitored, and when the proper condition exists, a rapid-rate charge, 0.35C rate (approximately one-third the current rating of the battery), proceeds. The rapid rate continues until one (or more) of the following occurs: a. the rate of temperature rise and the rate of voltage decrease are exceeded b.
After approximately three hours, or when the battery voltage becomes 10.3V or the temperature reaches 45°C (whichever occurs first), the microprocessor will reduce the charge current to the trickle rate and the LED will turn green. This rate will be maintained until the battery is removed.
Data connection to the XTVA is made through a data cable connected to DB25 connector J5. Once the data device is connected and turned on, the data transfer operation is started. During data transfer operation, the voice mode will be paused in the portable radio. Four RS232 signals originate in the radio, and four others are produced by the XTVA microprocessor, based on radio SB9600 signals.
Whenever the portable radio is turned on, R93, VR30, and R55 provide bias voltage (+9 Vdc) to the microphone (J4 pin 5) and supply to the multiplexer (MUX) (U2). Transistor Q5 conducts when driven by transistor Q18. Transistor Q18 monitors the radio’s OPT B+ line and drives Q5 when the radio is on.
Table 3 XTVA Functions Audio Condition Charger RS232 Circuit No Radio: Radio Loaded: Radio OFF: Radio ON: * — Provided the ignition switch is ON Q19 driver and Q6 detector operate charger dc switch Q4. Components R216, R166, R167, R330, and R208 hold Q6 in conduction until a radio battery is connected by loading a radio.
Maintenance Preventive Note: All part numbers and part designators used in this section Maintenance are for revision level “B” XTVA consoles. Please refer to the schematics and electrical parts lists at the back of this manual for the associated part and pin numbers. Note: The revision A console has a short extension cable (P/N 3085361C01) with a fuse block connected to the power supply connector, J2.
• Inspecting all mounting brackets and associated mounting screws for secure and tight mounting. • Checking for overheated or discolored components. • Checking for proper (13.8Vdc) vehicular alternator charging. Vehicular voltage can vary from as low as 10Vdc to as high as 18Vdc without being evident to the operator;...
Alcohol is a high-wetting liquid, and can carry contamination into unwanted places if an excessive quantity is used. Make sure that the controls are not soaked with the liquid. When the cleaning process is complete, use a soft, absorbent, lintless cloth to dry the area.
Page 38
Audio and charging - - - - - circuit troubleshooting See your Motorola sales representative for aid in ordering test equipment. The sales representative will analyze your requirements and help you select the latest available equipment and service aids to suit your individual needs.
Troubleshooting Refer to the troubleshooting and voltage charts at the back of this section to isolate a malfunction to a defective circuit. Follow the flow through the chart, check each observation, and answer each question. As an aid in understanding the operation and functioning of a particular circuit, refer to the appropriate paragraphs in the “Theory of Operation”...
Page 40
Disassembling the Chassis Note: The next step requires the use of both hands. Do not push on the purple pocket eject button (27), since this will prevent the pocket from latching in place. Do not apply excessive force on the kicker (4) as this may cause permanent damage to the kicker spring (3).
Flex Circuit ZIF Frame* Connector *Pull up on ZIF frame Figure 8 Disconnecting the Flex Cable Disassembling the Pocket 17. Remove the pin (30) and the purple universal bushing (29) from Subassembly the pocket housing (5) by pulling upward on the pin. 18.
a. Using a small, flat-bladed screwdriver, deflect the long arm of the kicker spring (3) in the direction the spring is wound, until the arm clears the plastic. b. Rotate the kicker counterclockwise until it reaches the stop. c. Pull the kicker up and away from the pocket. d.
23. Lift the “hooked” end of a charge contact (12) approximately 90° and pull it away from the back housing. Repeat this procedure for the remaining three contacts. 24. The lightpipe (18) can be removed by lifting the tab at its base and pulling the lightpipe out.
Pocket Wall Slot Pawl Fig12 Tail of Spring Figure 12 Reassembling the Latch Assembly 6. Turn the latch arm counterclockwise so that the spring is loaded. While pushing on the latch pawl and holding it in this position, slide the purple release button inward on its groove. Continue to hold the latch in the loaded position.
Page 45
b. Insert the kicker spring (3) onto the kicker’s short shaft so that its spring coils in a clockwise direction. The end of the spring with the straight (longest) arm should go in first and be in the opposite direction from the curved kicker arm. c.
RF Connector Universal Header Assembly Figure 14 Reassembling the Universal Subassembly 19. Align the hole in the universal header subassembly with the pin in the pocket and the hole in the link to the chassis boss. Push the universal header subassembly fully downward and under the corner of pocket actuator.
Assembly Instructions While performing step 1, make sure not to pull on the flex circuit ribbon. C a u t i o n 1. Orient the console so that the volume knob (19) faces away from you and the DB-25 connector (on the back of the PCB) faces toward you.
6. Arrange the console on the bench so that the back housing/PCB assembly is to the left and the front housing/chassis assembly is on the right, with the chassis facing upwards. Ensure that the power, microphone, and speaker cables do not pull on the back housing/PCB assembly by securely fastening them to the workbench.
Troubleshooting Rear Housing VA Front Cover Fig17 Figure 17 Placing the Troubleshooting Rear Housing on the Console Front Housing 11. Slide the radio into the pocket until it bottoms out. 12. Push down on the pocket actuator until the radio is securely latched in the console.
Frame Connector Troubleshooting Rear Housing Fig18 VA Front Cover Figure 18 Securing the Flex Circuit Ribbon Disassembly Instructions 1. Turn off the power supply to the unit. Turn off the radio. Gently lift up the opening frame on the ZIF flex circuit connector (located on the PCB), and slide out the flex extender.
Microprocessor Before an XTVA with a newly-programmed XTVA microprocessor can be used, the microprocessor must be “initialized.” This is also Initialization necessary if the microprocessor has “lost” its initialization. An XTVA with an uninitialized microprocessor will display the following sequence when it is powered-up: Charge LED TX LED Single orange flash...
Page 52
This discharges any static charge you may have accumulated. Note: Wear a conductive wrist strap (Motorola part number RSX-4015A) to minimize the buildup of static charges on your person while you are servicing CMOS equipment.
Substitution available, check the electrical and exploded view parts lists for the correct Motorola part number. Order the part from the nearest Motorola Communications Parts office as listed under “Replacement Parts Ordering” on the inside back cover of this manual.
Diagrams and Parts Lists Note: The voltages in the tables below are typical values from an XTVA powered by a 13.8Vdc supply. Table 5 Charger Section Voltage Measurements SIGNAL DC SW 5V REG BATT R * BATT R BATT V DAC OUT REF RATE†...
Troubleshooting Flow Chart START Good Turn on Load radio, set volume yellow Turn on Assure radio and battery Check off with discharged wire’s power supply. supply current are not faulty by thorough fuses battery in adapter, power Set to 13.8V >10mA? tests or substitution per install figure #5...
Send written orders to the following addresses: Replacement Parts/ Federal Government Orders: International Orders: Test Equipment/Manuals/ Crystal Service Items: Motorola Inc. Motorola Inc. Motorola Inc. United States and Canada United States and Canada United States and Canada Aftermarket Products Division...
Page 66
*6881088C78* *6881088C78* Motorola 8000 West Sunrise Boulevard 68P81088C78-O Fort Lauderdale, Florida 33322...
Page 67
VEHICULAR ADAPTER Instruction Manual 68P81088C78-O Introduction This manual revision details changes to the ASTRO XTS / DIMETRA MTP Vehicular Adapter Instruction Manual (Motorola publication number 68P81088C78-O). These are changes that have occurred since the publication of FMR1908-2 on 9/15/00. General Instructions Replace pages 47 to 54 with the replacement pages provided.
Page 69
2113741F27 1200 For optimum performance, order replacement diodes, transistors, and circuit R17, 18 0662057P10 10k±1%;1/10W R180 0662057P10 10k±1%;1/10W modules by Motorola part number only. C97, 98 2113740F67 R20 thru 26 0662057P10 10k±1%;1/10W R200 0662057P10 10kΩ When ordering crystals, specify carrier frequency, crystal frequency, crystal 2311049A01 0.1µF±10%;...