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Motorola Astro Dimetra MTP, Instruction Manual, Page: 4 / 76

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Motorola Astro Dimetra MTP Instruction Manual Download Page 4

 

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General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Test Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Installation Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

 

3 - Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

 

General  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Charger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Input Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5V Regulator (U7)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Microprocessor (U5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
RS232 Level Shifter (U8)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Optional PA/Speaker Volume Control  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mobile Microphone Selection and Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Charger LED Indicator Drivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
VRS/PAC•RT Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DC Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

 

4 - Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

 

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Periodic Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Cleaning Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Corrective Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Test Equipment and Service Aids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Disassembly/Reassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

XTVA Troubleshooting Kit Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Microprocessor Initialization  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Safe Handling of CMOS Integrated-Circuit Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Soldering  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Parts Replacement and Substitution  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

 

5 - Diagrams and Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Replacement Parts Ordering

 

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside back cover

 

List of Figures

 

Figure 1.

Console Installation Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2.

Microphone Bracket Installation Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 3.

Installing the Visor Microphone  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4.

Console Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5.

Console Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6.

External Speaker Installation Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 7.

Console Functional Block Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 8.

Disconnecting the Flex Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 9.

Removing the Kicker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 10.

Removing the Latch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 11.

Replacing the PCB Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 12.

Reassembling the Latch Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 13.

Installing the Kicker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 14.

Reassembling the Universal Subassembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 15.

Flex Against the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 16.

Connecting the Flex Extender  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 17.

Placing the Troubleshooting Rear Housing on the Console Front Housing . . . . . . . 39

Figure 18.

Securing the Flex Circuit Ribbon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 19.

DC Switch Section Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Summary of Contents for Astro Dimetra MTP

Page 1: ...1 XTS DIMETRA MTP Portable Radios Vehicular Adapter XTVA Instruction Manual MAEFP 26768 O ...

Page 2: ...ude copyrighted Motorola computer programs stored in semiconductor memories or other media Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs including but not limited to the exclusive right to copy or reproduce in any form the copyrighted computer program Accordingly any copyrighted Motorola computer programs contained in...

Page 3: ...General 5 Console Location 6 Microphone Bracket Location 7 Visor Microphone Location 7 Antenna Location 7 Battery Connections 7 Optional External Speaker Location 7 Optional Radio Frequency Power Amplifier RFPA Location XTS Only 8 Console Installation 8 Microphone Bracket Installation 9 Visor Microphone Installation 10 Antenna Installation 10 Console Cabling 11 XTVA LED Indicators Optional Wiring ...

Page 4: ...Devices 41 Soldering 43 Parts Replacement and Substitution 43 5 Diagrams and Parts Lists 45 Replacement Parts Ordering inside back cover List of Figures Figure 1 Console Installation Detail 9 Figure 2 Microphone Bracket Installation Detail 10 Figure 3 Installing the Visor Microphone 10 Figure 4 Console Connections 11 Figure 5 Console Cabling 12 Figure 6 External Speaker Installation Detail 14 Figu...

Page 5: ...ectrical Parts List 51 Console Revision Level B Printed Circuit Board Component Location Diagram 52 Console Revision Level B Printed Circuit Board Schematic Diagram 53 Console Exploded View and Exploded View Parts List 54 Related Publications DIMETRA MTP 200 300 User Guide 68P02400U04 DIMETRA MTP 200 300 Quick Reference Guide 68P02400U55 ASTRO XTS 3000 Model I User Guide 68P81083C70 ASTRO XTS 3000...

Page 6: ...AIN Ignition Off No Radio Ignition On No Radio Standby Receive with 6W Audio Transmit 10 mA Maximum 50 mA Maximum CHARGED BATTERY 0 4A 1 2A 1 8A DISCHARGED BATTERY 0 8A 1 6A 1 8A CHARGE TIME Three hours maximum Medium High and Ultra High Capacity Batteries ANTENNA INPUT IMPEDANCE 50 Ohms AUDIO OUTPUT Basic XTVA XTVA with Optional PA Speaker 500 mW at less than 5 distortion Note Portable speaker ou...

Page 7: ...HF Range 2 Q150AB NLF4568A Power Amplifier RF 800MHz Q147AB HKN6455A PA Speaker 6 Watt HSN1000B Cable 6 Watt PA Speaker Q229AB PLN7737A Control Head Hand Held HHCH Q760AA HMN4069B Microphone Next Generation Mobile NGMM Q328AA HMN4072_ Microphone Classic Palm H858AB NTN8940A Kit XTVA Trunnion Mount NTN8941A Kit XTVA Data Cable NTN8982A Kit XTVA Troubleshooting NKN6516A Cable RFPA NTN9027A Cable XTV...

Page 8: ...idelines set forth in the above standards transmit with any vehicular adapter with an RFPA only when people inside and outside the vehicle are no closer than the distance shown in Table 1 Note Table 1 applies only to an XTVA with an RFPA The power output of XTS radios ranges from 1 to 6 watts MTP radios have a 1 watt output Electromagnetic Interference Compatibility Note Nearly every electronic de...

Page 9: ...th Note The areas with potentially explosive atmospheres referred to above include fueling areas such as below decks on boats fuel or chemical transfer or storage facilities areas where the air contains chemicals or particles such as grain dust or metal powders and any other area where you would normally be advised to turn off a vehicle engine Areas with potentially explosive atmospheres are often...

Page 10: ...tronic system 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 Notations Used in This Manual Throughout the text in this publication you will notice the use of warnings cautio...

Page 11: ...d When the radio is inserted into the console the resulting combination acts similar to a mobile radio with the following automatic functions The vehicular adapter connects the vehicle s external antenna to the radio and the radio s portable antenna becomes electrically disconnected Proper operation of this function requires the use of an RF adapter Part No NTN8327_ on the portable radio Use of th...

Page 12: ...ss of the ignition switch condition 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 In some installations the ignition switch is bypassed so that the XTVA charges the radio battery with the ignition s...

Page 13: ... that the user can achieve greater range using the VA than with the portable radio alone The RFPA operates within a specified frequency range and must be matched to the frequency range of the portable radio There are no tuning components in the amplifier The amplifier is part of a half duplex system In transmit mode it amplifies the output signal from the radio to the system s antenna In receive m...

Page 14: ...4 Notes ...

Page 15: ... Kit NTN8941_ Before starting the installation plan the location of the console microphone RFPA optional and external speaker optional Identify the routing path for all cables Verify that the cable lengths are sufficient Also check the mounting penetrations required On most vehicles it is necessary to penetrate the firewall to reach the battery Check the opposite side of the firewall for cable cle...

Page 16: ...ng check the opposite sides of all mounting surfaces for obstructions such as vehicle wiring and fluid lines Console Location The optional trunnion U bracket can be used to mount the XTVA console either off the vehicle floor or under the vehicle dash The console should first be attached to the bracket and then the console bracket combination can be evaluated for the proper mounting location The co...

Page 17: ...he power cables in a way that protects them from being pinched chafed or crushed Cable fuses must be retained and located as close to the battery as practical to protect against cable or equipment shorts Secure the cable along its length through the engine compartment to prevent displacement during vehicle operation and service Optional External Speaker Location Select a location for the speaker t...

Page 18: ...orm to the vehicle type Using the optional trunnion U bracket as a template drill the mounting holes and mount the bracket with the hardware supplied see Figure 1 Note Failure to use the four outermost holes on the trunnion bracket or mounting the bracket on a non flat surface such as a transmission hump could degrade vibration performance Additionally the VA trunnion bracket should be mounted on ...

Page 19: ...te and drill two 1 8 inch 0 32cm holes Attach the microphone bracket to the mounting surface with the two self tapping screws provided Be sure to leave sufficient room above the bracket for inserting and removing the microphone 0 125 0 3175cm Dia Holes Cut Away of Dash Console Plastic Guides Groove DASH MOUNT OR FLOOR MOUNT Trunnion Bracket Optional LEGEND 1 No 10 12 x 1 1 4 Self Drilling Self Tap...

Page 20: ...antenna and antenna cable as outlined in the installation instructions supplied with the antenna Pertinent information on frequency matching and mounting details are also provided with each antenna Note The RF connector J3 on XTVA console models N1799_ and N2001_ is a mini UHF jack and must be mated with either an antenna mini UHF plug P3 or an appropriate adapter Motorola part numbers 5880367B21 ...

Page 21: ...361C01 connected to the power supply connector J2 Do not attempt to tamper with or remove this extension 1 After setting the 2 foot 61cm section of the main power cable s red lead aside for later use route the main power cable through the firewall and into the vehicle battery area Use an existing opening or if necessary drill a 3 8 inch 0 953cm hole through the firewall Insert the grommet provided...

Page 22: ...ct To Red Vehicle battery Black Vehicle Chassis Gnd Yellow Fuse box see below for details The yellow wire controls whether or not the XTVA radio battery charger will be live at all times Consider the functionality and vehicle battery drain current below during installation Standard Wiring to Vehicle Switched A Charging OFF with Vehicle OFF For installations where the radio may be left in the XTVA ...

Page 23: ...d connect the control head cable plug to console jack J4 Attach the strain relief S hook to the console crimp the S hook with a pair of pliers 11 Make certain that no radio is installed in the console then replace the two cable wire 5 amp fuses XTVA LED Indicators Optional Wiring The XTVA s LED indicators can be dimmed or disabled for night use or surveillance operations by using the optional wiri...

Page 24: ...trical system Important Note Failure to mount the red lead of the power cable kit directly to the battery may result in severe alternator whine interference If severe alternator whine interference is present when the power cable is properly installed a power line filter kit TLN5277_ can be purchased to reduce the interference An RF coaxial cable connects the XTVA antenna connector J3 to the RF IN ...

Page 25: ...tenna on the side of the car trunk opposite from the braking modulator box Route all cables along the side of the vehicle opposite from the braking modulator box DO NOT operate the transmitter while the vehicle is in motion with the trunk lid open Test Procedure This test covers several different types of interference Disturbance of the electronic anti skid device can usually be detected in severa...

Page 26: ...th and without modulation Refer to the above warning 8 If no interference or disruption is noticed repeat step 7 making abrupt stops from 30 mph 48 kph Refer to the above warning If no malfunctions are observed in performing the above steps it can be assumed that no apparent problem exists and the car can be released to the customer If any of the above steps results in a brake malfunction contact ...

Page 27: ...tor and RF adapter contacts This makes control of all basic radio functions available to the XTVA The hand held control head HHCH microphone optional external speaker and rooftop antenna are also automatically connected to the radio when it is latched into the console For an XTVA without the optional external speaker all the controls on the top of the radio can be used Received message audio is em...

Page 28: ...temperature that is too high or too low outside a predetermined window are precharged at a reduced rate for a short period of time Supply Input Charger Voltage to Current Converter D A Converter Test Load Open Cell Shutoff ANALOG CLAMP SELF TEST VOLTAGE SENSE Radio Battery Contacts TYPE SIZE SENSE TEMP SENSE To From Radio Conn Mobile Mic Conn Rx Audio Mute HHCH Detect HUB LH_BUSY RX AUDIO COMMON R...

Page 29: ...nected is processed by the dc switch Q6 Q19 and Q4 which connects the charger to A and charging begins The microprocessor interrogates the radio battery for type and temperature by measuring the voltage at the RC code and RT temperature battery contacts The valid RC values identifying the designated battery type are as follows The voltage at the RT contact is pertinent because the processor is pro...

Page 30: ... transient voltage suppressors that clamp incoming transients and provide reverse supply protection 5V Regulator U7 The 5 volt regulator U7 and associated circuitry supply regulated 5 Vdc to the microprocessor U5 and the level shifter IC U8 Capacitors C39 C89 C40 and C80 form a filter to reduce noise on the 5 volt supply line The filter circuitry also improves the RF noise immunity Microprocessor ...

Page 31: ...oupled low input 2kW impedance The buffer stage U4 1 accepts signal from U4 2 for drive voltage to the PA Input The PA speaker drive signal is muted unless receiving The XTVA s volume control is rev A consoles in line with the audio signal path or rev B or higher consoles connected between regulated 5V supply and microprocessor U5 input pin 49 In rev A consoles the volume control trims the audio s...

Page 32: ...diodes D10 and D11 causing driver transistor bases to be taken below 0 7 Vdc VRS PAC RT Control The XTVA circuit board includes a vehicular repeater system VRS control circuit consisting of transistor Q15 and associated circuitry Transistor Q6 monitors the presence of a radio in the XTVA console When the radio is inserted into the XTVA console Q6 stops conducting causing Q15 to conduct This logic ...

Page 33: ...oss the universal contact ground pin 8 and the XTVA s grounded charge contact Q6 Q19 and Q4 switch to opposite states Diode D9 supply hold allows processor U5 to control XTVA power down The audio section dc switch Q5 is operated by Q18 Q18 conducts only when the radio is turned on by radio signal option B at connector J6 pin 5 Table 3 XTVA Functions Condition Charger Audio Circuit VRS RS232 No Rad...

Page 34: ...24 Notes ...

Page 35: ... the equipment operational and failure free The environment in which the equipment is being used will determine the frequency of PM schedules As a rule PM should be performed at least once a year The periodic inspections should include Visual inspection of cables for frayed or oxidized leads Ensuring that battery connections are free from oxidation or corrosion Ensuring that contacts on the radio ...

Page 36: ...se surfaces should be cleaned whenever a periodic visual inspection reveals the presence of excessive dust grease and or grime The only recommended agent for cleaning the internal and external plastic XTVA surfaces is a 0 5 solution of a mild dishwashing detergent in water one teaspoon of detergent per gallon of water The effects of certain chemicals and their vapors can be harmful to some types o...

Page 37: ...lated symptoms and probable malfunctioning stages Generally if the XTVA is totally inoperative it may be assumed that the vehicle s battery is completely discharged the fuse is blown or the power lead is opened However if the XTVA is partially operative it may be assumed that the batteries are serviceable and that one or more internal or external functional XTVA circuits are defective or marginal ...

Page 38: ... PACK is strongly recommended for technicians who intend to service this and other Motorola products using leadless components This VHS videotape is in standard half inch format This MAV PACK as well as others is available from Motorola C E Inc National Service Training Center 1300 N Plum Grove Road Schaumburg Illinois 60173 Table 4 Recommended Test Equipment Model No Name Characteristics Applicat...

Page 39: ...ew and exploded view parts list on page 54 Items in parentheses refer to item numbers in the exploded view Preliminary Disassembly 1 Unlock the console press the eject button to remove the radio from the console and disconnect all cables from the console including the microphone cable Remove the key 24 from the console lock 23 2 Using a 4mm hex Allen wrench remove the trunnion screws 25 from the s...

Page 40: ... 31 is now exposed Gently twist in a clockwise direction and pull outward on the header until it clears the pocket lid housing 26 Then pull the entire assembly upward being careful not to pull on the flex circuit ribbon cable Set the subassembly next to the unit 11 Gently lift the chassis subassembly 8 away from the back housing 14 and set it on a flat working surface for further disassembly 12 Ge...

Page 41: ...ove the pin 30 and the purple universal bushing 29 from the pocket housing 5 by pulling upward on the pin 18 Remove the kicker 4 from the pocket see Figure 9 Figure 9 Removing the Kicker Flex Circuit ZIF Frame ZIF Connector Pull up on ZIF frame Fig09 Screwdriver Deflect Spring to Left ...

Page 42: ...the screwdriver slightly clockwise while pulling outward on the pocket lid housing This will enable you to clear the snap feature in the middle of the pocket lid housing and slide the pocket lid housing away from the pocket housing 20 Remove the purple eject button 27 from the pocket by sliding it out of the groove 21 Referring to Figure 10 pull on the latch assembly 6 and slide it out of the pock...

Page 43: ... the slot opening then rotate it downward until it bottoms out Do not try to force the contact into position this will permanently damage it 3 Do not replace the nameplate label 17 until the entire unit has been reassembled and the fasteners tightened together 4 Referring to Figure 11 insert the PCB assembly 11 by holding the PC board at an angle to the back housing 14 while inserting the volume k...

Page 44: ...ng 26 so that the small rectangular opening in the lid is in the same plane as the wedge shaped snap feature on the pocket housing then slide the pocket lid housing inward until it snaps in place 8 Install the kicker 4 in the pocket housing Refer to Figure 13 Figure 13 Installing the Kicker a Hold the kicker 4 so that its curved arm is at your left and its longer keyed shaft is pointed downward Ta...

Page 45: ...ing Note The next step requires use of both hands Do not push on the purple pocket release button since this will prevent the pocket from latching in place 13 Grasp the pocket at its base while holding the kicker clear of the chassis and pull down the pocket until it latches in place This is confirmed by a distinct click sound Reassembling the Universal Header Subassembly 14 Assemble the universal...

Page 46: ...d 23 Insert the lock into the slot above the volume knob so that the gold dot faces upward 24 Reassemble the top cover Make sure the flex circuit ribbon is not pinched 25 Turn the unit upside down and torque the five back cover screws to 8 in lb using a T 15 TORX driver 26 If the product label was removed while disassembling the unit replace it in the recess 27 Finally inspect the coaxial cable fo...

Page 47: ...nnector located on the PC board 11 and slide the flex circuit ribbon out of the connector 3 Be careful not to pinch the circuit ribbon flex during this step Turn the chassis rightside up The flex should lie against the chassis as shown in Figure 15 Replace the front housing 1 on the chassis Figure 15 Flex Against the Chassis 4 Gently lift the PCB partly out of the back housing by grasping and lift...

Page 48: ... Figure 16 Hold the end of the flex circuit ribbon so that the text THIS SIDE IN faces upwards and insert the end into the ZIF connector Secure the flex circuit ribbon end by pushing down on the ZIF connector frame Figure 16 Connecting the Flex Extender 8 While holding the flex extender in place as shown in Figure 17 place the troubleshooting rear housing second part of NTN8982_ on the XTVA front ...

Page 49: ...assis assembly is on the right with the chassis facing upwards 14 Plug the db25 end of cable into the db25 port on the back housing PCB assembly Note Be extremely careful while performing the next step Flexible circuit boards and ZIF connectors are easily damaged if mishandled 15 Carefully grasp the free end of flex Extender and insert into the ZIF connector on the PCB Secure the flex circuit ribb...

Page 50: ...acts Be sure to fit the locating features on the PCB contacts into their complementary features on the back housing Lower the PCB in place 9 Remove the front cover from the chassis Note If you wish to continue disassembling the chassis go to the Disassembly Procedure page 29 and start at step 8 10 Lay the chassis upside down to the right of the back cover PCB assembly Carefully grasp the free end ...

Page 51: ...e following Safe Handling of CMOS Integrated Circuit Devices Many of the integrated circuit IC devices used in communications equipment are of the CMOS Complementary Metal Oxide Semiconductor type Because of their high open circuit impedance CMOS ICs are vulnerable to damage from static charges Everyone involved in handling shipping and servicing them must be extremely careful not to expose them t...

Page 52: ...pment is grounded Attach the ground lead from the test equipment to the circuit module before connecting the test probe Similarly disconnect the test probe before removing the ground lead 6 When you remove a circuit module from the system lay It on a sheet of aluminum foil or other conductive surface connected to ground through 100 000 ohms of resistance If the aluminum foil is connected directly ...

Page 53: ...nner layers are not accessible some special considerations are required when soldering and unsoldering components The printed through holes may interconnect multiple layers of the printed circuit Therefore care should be exercised to avoid pulling the plated circuit out of the hole Closely examine your work for shorts due to solder bridges Flexible Circuits The flexible circuits are made from a di...

Page 54: ...44 Notes ...

Page 55: ...CHARGE MODE RED GREEN TRANSMIT RECEIVE MEASURED AT U5 Q10 U5 Q11 U5 Q16 U5 Q16 31 E 35 E 12 E 12 E ON 5 4 3 5 4 3 5 4 3 5 4 3 DIM 5 2 9 5 2 9 5 2 9 5 2 9 Pulsed signal from 0Vdc to the voltage shown at a 10 duty cycle Table 7 DC Switch Section Voltage Measurements SIGNAL ENABLE HOLD OFF DRIVE PASS SUPPLY HOLD MEASURED AT Q31 Q6 Q19 Q4 U5 D D C S 9 ON 0 13 4 0 62 13 7 5 OFF 13 6 0 RAD OUT 13 70 2 0...

Page 56: ...Bad Check fuses Check DC switch Q6 Q19 Q4 Check charger Q1 Q2 Q3 Q20 Q13 U3 Is supply current 400mA Is charger LED red Rapid charge is OK Press PTT on mic Is mode LED red Check Q16 D2 R169 L8 Q26 R1 R168 L7 R2 VR25 VR51 VR8 VR62 Speak into mic while pressing PTT Check radio on channel U4 pin7 Q24 Q7 U2 U4 1 Is U3 pin 5 2V Check Q10 D1 Is supply current approx 120mA Is charger LED green Trickle cha...

Page 57: ... 10W R29 thru 31 0662057P10 10k 1 1 10W R32 0662057B14 470k 1 10W R33 0662057P10 10k 1 1 10W R35 thru 38 0662057P10 10k 1 1 10W R40 0662057P10 10k 1 1 10W R41 0662057A33 220 1 10W R42 thru 44 0662057P10 10k 1 1 10W R45 0662057A97 100kW 5 1 10W R47 0662057P10 10k 1 1 10W R48 0662057Z42 33k 1 1 10W R49 0662057P51 51k 1 1 10W R52 thru 55 0662057A49 1k 1 10W R57 0662057A33 220 1 10W R58 0662057B47 0W ...

Page 58: ...0 R41 R42 R43 R44 R45 R47 R48 R49 R50 R52 R53 R54 R55 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R103 R106 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R128 R131 R132 R133 R134 R135 R136 R137 R138 R139 1 2 R140 1 2 3 R141 R14...

Page 59: ...R21 12V 470pF C25 C200 100K 0 0 1uF 0 R226 100K W5 220 R57 C76 1uF R167 10K 0 1uF R125 3 3K 100K R144 38 C59 470pF R207 R12 100K 100K R141 38 39 41 11 470pF C52 5 J1 5 6V VR51 36 470pF C109 37 35 470pF BUS2 0 52 6 J2 R221 10K J6 Aud_A 1uF R119 220 680 R96 Q7 10K R1 470pF C106 5v_fltr 13 470pF MC68HC711E9 U5 IGN_SW_SENSE EXT_PTT 12 5V_FLTR C105 8 XTAL 18 XIRQ 1 VSS 51 VRL 52 VRH 26 VDD 6 STRB_R_W 4...

Page 60: ...50 Notes Notes ...

Page 61: ... R20 thru 26 0662057P10 10k 1 1 10W R27 0662057P20 20k 1 R28 0662057P51 51k 1 1 10W R29 thru 31 0662057P10 10k 1 1 10W R32 0662057B14 470k 1 10W R33 0662057P10 10k 1 1 10W R35 thru 38 0662057P10 10k 1 1 10W R40 0662057P10 10k 1 1 10W ITEM MOTOROLA PARTNUMBER DESCRIPTION R41 0662057A33 220 1 10W R42 thru 44 0662057P10 10k 1 1 10W R45 0662057A97 100kW 5 1 10W R47 0662057P10 10k 1 1 10W R48 0662057A4...

Page 62: ...0 R31 R32 R33 R35 R36 R37 R38 R40 R41 R42 R43 R44 R45 R47 R48 R49 R52 R53 R54 R55 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R83 R84 R85 R86 R87 R88 R89 R90 R91 MAEPF 26750 O R92 R93 R94 R95 R96 R97 R98 R99 R100 R103 R106 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R126 R128 R131 R133 R134 R135 R136 R137 R138 R...

Page 63: ...2 5 J1 5 6V VR51 RAD_IN 36 470pF C109 37 35 470pF BUS2 0 52 6 J2 R221 10K J6 Aud_A 1uF R119 220 680 R96 Q7 10K R1 470pF C106 5v_fltr 13 470pF U5 IGN_SW_SENSE EXT_PTT 12 5V_FLTR C105 8 XTAL 18 XIRQ 1 VSS 51 VRL 52 VRH 26 VDD 6 STRB_R_W 4 STRA_AS RESET 17 50 PE7_AN7 48 PE6_AN6 46 PE5_AN5 44 PE4_AN4 49 PE3_AN3 47 L8 0 27uH 47 Q24 14 50 R72 R214 44 R41 15V VR33 R58 0 1 2 0 1uF MODB_VSTBY 3 MODA_LIR 19...

Page 64: ...ly 12 3985878B01 CONTACT Charge 4 req d 13 3985879B01 CONTACT PCB 4 req d 14 1585822A03 HOUSING Back 15 0310908A96 SCREW Back Cover 5 req d 16 5405247W06 LABEL Date Code 17 3305409X32 LABEL Nameplate 18 6186158A01 LIGHTPIPE 19 3605371Z01 KNOB Volume 20 4305372Z01 INSERT Knob 21 3205082E98 O RING 22 1485923B02 INSULATOR 23 5586156A01 LOCK includes item 24 24 5586156A02 KEY part of item 23 25 038588...

Page 65: ...e number of the chassis or kit of which it is a part and sufficient description of the desired component to identify it Crystal and channel element orders should specify the crystal or channel element type number crystal and carrier frequency and the model number in which the part is used Replacement Parts Test Equipment Manuals Crystal Service Items Motorola Inc United States and Canada Aftermark...

Page 66: ...4 Motorola 8000 West Sunrise Boulevard Fort Lauderdale Florida 33322 68P81088C78 O 6881088C78 6881088C78 ...

Page 67: ...APTER 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 68: ......

Page 69: ...10k 1 1 10W R32 0662057B14 470k 1 10W R33 0662057P10 10k 1 1 10W R35 thru 38 0662057P10 10k 1 1 10W R40 0662057P10 10k 1 1 10W R41 0662057A33 220 1 10W R42 thru 44 0662057P10 10k 1 1 10W R45 0662057A97 100kΩ 5 1 10W R47 0662057P03 4 75kΩ R48 0662057Z42 33k 1 1 10W R49 0662057P51 51k 1 1 10W R52 0662057A49 1k 1 10W R53 0662057A33 220Ω R54 R55 0662057A49 1k 1 10W R57 0662057A33 220 1 10W ITEM MOTORO...

Page 70: ...0 R41 R42 R43 R44 R45 R47 R48 R49 R50 R52 R53 R54 R55 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R103 R106 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R128 R131 R132 R133 R134 R135 R136 R137 R138 R139 1 2 R140 1 2 3 R141 R14...

Page 71: ...C76 1uF R167 10K 0 1uF R125 3 3K 100K R144 38 C59 470pF R207 R12 100K 100K R141 38 39 41 11 470pF C52 5 J1 5 6V VR51 36 470pF C109 37 35 470pF BUS2 0 52 6 J2 R221 10K J6 Aud_A 1uF R119 220 680 R96 Q7 10K R1 470pF C106 5v_fltr 13 470pF MC68HC711E9 U5 IGN_SW_SENSE EXT_PTT 12 5V_FLTR C105 8 XTAL 18 XIRQ 1 VSS 51 VRL 52 VRH 26 VDD 6 STRB_R_W 4 STRA_AS RESET 17 50 PE7_AN7 48 PE6_AN6 46 PE5_AN5 44 PE4_A...

Page 72: ...50 Notes Notes ...

Page 73: ...W R27 0662057P20 20k 1 R28 0662057P51 51k 1 1 10W R29 thru 31 0662057P10 10k 1 1 10W R32 0662057B14 470k 1 10W R33 0662057P10 10k 1 1 10W R35 thru 38 0662057P10 10k 1 1 10W R40 0662057P10 10k 1 1 10W R41 0662057A33 220 1 10W R42 thru 44 0662057P10 10k 1 1 10W R45 0662057A97 4 75kΩ 5 1 10W ITEM MOTOROLA PARTNUMBER DESCRIPTION R47 0662057P03 4 75kΩ R48 0662057A49 1k 1 10W R49 0662057P51 51k 1 1 10W ...

Page 74: ...0 R31 R32 R33 R35 R36 R37 R38 R40 R41 R42 R43 R44 R45 R47 R48 R49 R52 R53 R54 R55 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R83 R84 R85 R86 R87 R88 R89 R90 R91 MAEPF 26750 O R92 R93 R94 R95 R96 R97 R98 R99 R100 R103 R106 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R126 R128 R131 R133 R134 R135 R136 R137 R138 R...

Page 75: ...V VR51 RAD_IN 36 470pF C109 37 35 470pF BUS2 0 52 6 J2 R221 10K J6 Aud_A 1uF R119 220 680 R96 Q7 10K R1 470pF C106 5v_fltr 13 470pF U5 IGN_SW_SENSE EXT_PTT 12 5V_FLTR C105 8 XTAL 18 XIRQ 1 VSS 51 VRL 52 VRH 26 VDD 6 STRB_R_W 4 STRA_AS RESET 17 50 PE7_AN7 48 PE6_AN6 46 PE5_AN5 44 PE4_AN4 49 PE3_AN3 47 L8 0 27uH 47 Q24 14 50 R72 R214 44 R41 15V VR33 R58 0 1 2 0 1uF MODB_VSTBY 3 MODA_LIR 19 IRQ 7 EXT...

Page 76: ...985878B01 CONTACT Charge 4 req d 13 3985879B01 CONTACT PCB 4 req d 14 1585822A03 HOUSING Back 15 0310908A96 SCREW Back Cover 5 req d 16 5405247W06 LABEL Date Code 17 3305409X32 LABEL Nameplate 18 6186158A01 LIGHTPIPE 19 3605371Z01 KNOB Volume 20 4305372Z01 INSERT Knob 21 3205082E98 O RING 22 1485923B02 INSULATOR 23 5586156A01 LOCK includes item 24 24 5586156A02 KEY part of item 23 25 0385881B01 SC...

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