The Motorola products described in this manual may include 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 pro- grams, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied or reproduced in any manner without the express written permission of Motorola.
MAIL ORDERS Send written orders to the following addresses: Replacement Parts/ Federal Government Orders: International Orders: Test Equipment/Manuals Motorola Inc. Motorola Inc. Crystal Service Items: Americas Parts Division Americas Parts Division Motorola Inc. Attention: Order Processing...
GTX Mobile Radio Model Chart 15 W GTX Mobile Radio, M11UGD6CB1AN FUF1140 Mobile Radio GKN6270 DC Power Cable GLN7317 Installation Kit HMN3413 Microphone FLN8752 Manuals GKN6271 Ignition Cable KIT BREAKDOWN FUF1140 Mobile Radio FBN5767 Bulk Packing FCN1629 Control Head FHN5875 Accessory Kit FUF1290 15 W Unified Chassis...
LCS 2000 Mobile Radio Model Chart 15 W LCS Mobile Radio, M10UGD6DC5AN/F2484 FUF1142 Mobile Radio GKN6270 DC Power Cable GLN7317 Installation Kit HMN3220 Microphone FLN8753 Manuals GKN6271 Ignition Cable KIT BREAKDOWN FUF1142 Mobile Radio FBN5767 Bulk Packing FCN1630 Control Head FHN5875 Accessory Kit FUF1290...
Radio Model Numbering System The model number, serial number, and Motorola FCC designation number are all on a label attached to the back of your radio. All GTX/LCS 2000 radio models are synthesized, 8-channel units that come standard with Tone Private-Line (TPL)/Dig- ital Private-Line (DPL) coded squelch or carrier squelch, which may be enabled/disabled on a per channel basis.
Introduction Notational Conventions Throughout the text in this publication, you will notice the use of warnings, cautions, and notes. These notations are used to emphasize that safety hazards exist, and care must be taken and observed. Warning WARNING Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
To ensure personal safety, please observe the following simple rules: WARNING • Do not transmit when the antenna is very close to, or touching, exposed parts of the body, especially the face and eyes. • Do not hold the transmit (PTT) key in when not desiring to transmit.
Basic Maintenance Introduction This section of the manual describes preventive maintenance, safe handling of CMOS devices, and repair procedures and techniques. Each of these topics provides information vital to the successful operation and maintenance of your radio. Preventive The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended.
6. Use a static safeguarded workstation, which can be accomplished through the use of an anti-static kit (Motorola part number 0180386A82). This kit includes a writ strap, two ground cords, a static-control table mat and a static- control ﬂoor mat.
7. Always wear a conductive strip when servicing this equipment. the Motorola part number for a replacement wrist strap that connects to the table mat is 42- 80385A59. 8. When straightening CMOS pins, provide ground straps for apparatus used. 9. When soldering, use a grounded soldering iron.
Over-Molded Pad-Array ASFIC U0201 is an OMPAC. It must be kept in a sealed bag with dessicant in the bag (in a “dry box” as supplied by the Motorola Parts Department prior to use. If Carrier (OMPAC) the OMPAC is ambient for an unknown amount of time or for more than 96 hours, then it must be baked for at least eight hours at 260 ˚...
head over the OMPAC and lower it to approximately 1/8” (0.3cm) over the carrier. Using the same heat and airﬂow setting used to remove the OMPAC, turn on the heater and wait for the carrier to reﬂow (heating and reﬂow should take longer than 60 seconds).
This Page is Intentionally Left Blank Basic Maintenance...
The “Characteristics” column is included so that equivalent equipment may be substituted; however, when no information is provided in this column, the speciﬁc Motorola model listed is either a unique item or no substitution is recommended. Table 3-1 Recommended Test Equipment Model No.
Field Programming The radio can be aligned and programmed in the ﬁeld. This requires speciﬁc equipment and special instructions. refer to the Radio Service Software User’s Manual for complete ﬁeld programming information. Table 3-2 Service Aids PART No. DESCRIPTION APPLICATION RLN4008B Radio Interface Box Enables communications between the radio and the compu-...
The following table lists the tools recommended for working on the radio; these are also available from Motorola. Note that the R-1070A workstation requires the use of a specific “heat focus head” for each of the components on which this item is used.
This Page is Intentionally Left Blank Test Equipment, Service Aids, and Tools...
Test Mode and Error Codes Front Panel Test Mode The functions of the radio controls for the Front Panel Test Mode are as follows: Test Mode/Entry Test Mode allows radio checks to be performed in the ﬁeld. To provide a level of protection to the Test Mode entry, proceed according to the following sequence: Place radio in TRUNKING operation mode and wait for 6 seconds.
Test Mode/Tx Modulation Use PTT switch for modulation type selection. A continuous press will advance the radio to the next modulation test (cyclic scroll ) and perform Tx test until PTT is released. The modulation selection is described in the table below. Table 4-2 Test Mode/Tx Modulation Modulation Type Internal Speaker Audio Signaling...
Disassembly & Reassembly This chapter explains, step by step, how to disassemble and assemble the radio, to board level. Disassemble the Radio Remove the Control Head Turn the radio upside down. Insert a small ﬂat blade screw driver, or similar, in the recess between the control head and the main board.
Remove the Top Cover Insert a small ﬂat blade screw driver in the side recess of the radio chassis. Repeat the operation on the opposite side of the radio. Lift the top cover over the chassis. SIDE RECESS Figure 5-3 Top Cover Removal Remove the Main Board Remove the power and antenna connector retaining clips by inserting a small ﬂat blade screw driver between the clip and the...
SHIELD CLIPS Figure 5-4 Main Board Removal Disassemble the Control Head HOUSING PART OF LCD FRAME GASKET SPEAKER VOLUME KNOB LCD FRAME ZEBRA CONNECTOR KEYPAD POTENTIOMETER FLAT CABLE Figure 5-5 Control Head Removal To pull out the printed circuit board from the control head hous- ing, insert a small blade screw driver in the side groove near the four protruding tabs.
Assemble the Radio Assemble the Control Head Insert the LCD frame with LCD and Zebra connectors into its place. Place the keypad onto the board assembly, making sure the keypad is ﬂush with the board. Rotate the potentiometer counterclockwise. Rotate the volume knob counterclockwise.
Radio Tuning Procedure Radio Tuning Procedure General An IBM PC (personal computer) and RSS (Radio Service Software) are required to align the radio. Refer to the applicable RSS Manual for installation and setup procedures for the software. To perform the alignment procedures, the radio must be connected to the PC, RIB (Radio Interface Box), and Test Set as shown in Figure 6-6.
Service Menu Board Alignment Replacement Menu Menu F2 Logic or RF Board Replacement F3 Tx Power F3 Deviation Adjustment F4 Warp Reference Frequency F5 Reference Oscillator Warp F5 Tx Power Calibration F7 Transmitter Power F6 Tx Deviation Calibration F8 Squelch Adjustment F9 Squelch Adjustment Figure 6-7 Service Menu Structure All SERVICE screens read and program the radio codeplug directly;...
Tuning Procedure Starting the Tuning From the SERVICE menu, press F6 to select BOARD REPLACEMENT. Procedure Press F2 for LOGIC OR RF BOARD replacement. Note: Perform the following procedures in the sequence indicated. Reference Crystal Data Press F2 to select REFERENCE CRYSTAL DATA. Press F8 for PROGRAM VALUE.
Transmit Deviation Compensation alignment balances the modulation sensitivity of the VCO and reference modulation (synthesizer low frequency port) lines. Compensation Balance (Compensation) algorithm is critical to the operation of signaling schemes that have very low & Deviation Limit frequency components (e.g. DPL) and could result in distorted waveforms if improperly adjusted.
Theory of Operation This chapter provides theory of operation information for the radio. It starts with a block diagram level functional description of the entire radio. This is followed by a detailed functional description for each of the four major functions that make up the radio.
• Second IF ampliﬁers • FM Demodulator • Audio ampliﬁer In addition to BBR IC, the back end contains the following components: • Second LO resonator for 44.645 MHz (Y5211) • Crystal ﬁlters for 455 kHz (FL5201, FL5202) • Demodulator ﬁlter (C5224) The IF signal routed to BBR IC is ampliﬁed, converted to 455 kHz, ﬁltered, limited and demodulated.
This network forms a low-pass ﬁlter to attenuate harmonic energy of the transmitter to speciﬁcations level. A forward-power detector follows the harmonic ﬁlter. This forward-power detector is a microstrip printed circuit, which couples a small amount of the forward energy and sends it to diode CR6506 where it is rectiﬁed. This rectiﬁed signal (VFORWARD) forms the forward voltage which the power control circuit holds constant.
Synthesizer Detailed The complete synthesizer subsystem consists of a reference oscillator (U5700), a Fractional-N Synthesizer IC (U5702), two on-board voltage controlled oscillators, Functional Description a buffer stage (U5701), and two line-up ampliﬁers (Q5707, Q5705). Reference oscillator U5700 contains a temperature compensated crystal with an oscillation frequency of 16.8 MHz.
The serial interface (SPI_DATA) is connected to the microprocessor via the data line (pin 5 of U5702), clock line (pin 6 of U5702), and chip enable line (pin 5 of U5702). Proper enabling of these lines should allow the microprocessor to load the synthesizer IC.
The digital section consists of a microprocessor, memory ICs, glue logic circuitry, signal MUX ICs, On/Off circuit, and general purpose Input/Output circuitry. The controller is based on the Motorola 68HC11K1 microprocessor (U0101), 8- Kbyte SRAM (U0103), 128 Kbyte-OTP memory (U0102), and 4 Kbyte EEPROM (U0104).
Diode D5601 located on the PA section acts as protection against transients and wrong polarity of the supply voltage. Electronic On/Off The radio has circuitry which allows radio software and/or external triggers to turn the radio on or off without direct user action. Some examples of where this is useful are: 1) automatic turn on when emergency switch is engaged;...
When the IGNITION input goes above 6 V, Q0450, Q0612 and Q0611 turn on, supplying SW B+ to the radio and enabling U0601 and U0631 to supply the regulated voltage (+5 V and 9.3 V) to all the circuitry. The µP starts to run the software, reads the line EMER IGN SENSE, determines from the level (Emergency has a different level) that the IGNITION input is active and sets the B+ CONTROL (via the ASFIC-GCB2) to high and latches SW B+ to on.
SPI BUS is also used for the control head. U0106 buffers the SPI TRANSMIT DATA and CLK lines to the control head. U0106 serves also to switch off the CLK signal for the LCD display while it is not selected via LCD CE signal. When the µP needs to program any of these ICs, it drops down the chip select line of the speciﬁc IC to a logic 0 and then sends the proper data and clock signals.
On the K1µP the lines XIRQ (U0101-30), MODA LIR (U0101-77), MODB VSTPY (U0101-76) and RESET (U0101-75) should be logic high during all normal K1µP operation. Whenever a data or an address line becomes unloaded or shorted to an adjacent line, a common symptom is that short negative pulses occur on the RESET line, with a period of 20 msec.
access signals (SI, SO and SCK) are generated by the K1µP and chip select (CS) is generated by address decoder U0105. Additional EEPROM is contained in the K1µP (U0101). This EEPROM is used to store radio tuning and alignment data. Like the external EEPROM this memory can be programmed multiple times and will retain the data when power is removed from the radio.
Controller Audio & Signaling Circuits General Audio Signalling Filter IC The ASFIC (U0201) used in the controller has four functions; (ASFIC) • RX/TX audio shaping, i.e. ﬁltering, ampliﬁcation, attenuation • RX/TX signalling, PL/DPL/HST/MDC/MPT • Squelch detection • Microprocessor clock signal generation (see Microprocessor Clock Synthesizer Description Block).
J0101 MIC AMP OUT TX IN MIC IN CONTROL HEAD CONNECTOR FILTERS & PREEMPHASIS ASFIC U0201 MIC IN LS SUMMER EXT MIC J0400 FLAT TX SPLATTER AUDIO FILTER AUX TX IN ACCESSORY HS SUMMER MOD IN CONNECTOR TO RF LIMITER ATTENUATOR SECTION (SYNTHESIZER)
routed to two attenuators, which are tuned in the factory or the ﬁeld to set the proper amount of FM deviation. The TX audio emerges from the ASFIC at U0201-H8 MOD IN, and is routed to the RF section. Transmit Signalling See Figure 7-4 for reference for the following sections.
This drives a tone generator inside U0201 which generates a staircase approximation to a PL sine wave or DPL data pattern. This internal waveform is then low-pass ﬁltered and summed with voice or data. The resulting summed waveform then appears on U0201-H8 (MOD IN), where it is sent to the RF board as previously described for transmit audio.
ACT. The state of CH ACT and SQ DET is high (logic 1) when carrier is detected, otherwise low (logic 0). CH ACT is routed to the µP pin 25 while SQ DET adds up with LOCK DET, weighted by resistors R0113, R0114, and is routed to one of the µP´s ADC input U0101-43.
The outputs of the Audio PA (EXT-SPKR+, INT/EXT SPKR-) are routed to the external speaker through the accessory connector. The INT/EXT SPKR- is directly connected to the INT-SPKR(-). The EXT-SPKR+ can be connected to the internal speaker(+) in two ways: 1) internal connection via R456 (0 Ohm);...
Receive Signalling Circuits Refer to the following sections. HIGH SPEED LOW SPEED CLOCK CLOCK DATA FILTER LIMITER & DEEMPHASIS MICRO CONTROLLER ASFIC U0201 U0101 DET AUDIO DISCRIMINATOR AUDIO FROM RF SECTION FILTER LIMITER (IFIC) LOW SPEED RX LIM LIM CAP Figure 7-6 Receive Signalling Path.
The allowable internal alert tones are 304, 608, 911, and 1823Hz. In this case a code contained within the SPI BUS load to the ASFIC sets up the path and determines the tone frequency, and at what volume level to generate the tone. (It does not have to be related to the voice volume setting).
Troubleshooting Overview This section contains three troubleshooting tables for the following GTX/ LCS 2000 components: • Receiver • Synthesizer • Power Amplifier • Controller • Control Head Troubleshooting Charts Refer to following pages. Troubleshooting...
Start Is AUDIO_DET AC level 0.2Vrms, 1KHz? Check controller RF_REG_5V Check circuit. present at DC circuit. Q5320 E-2? Is K9.1 at Check TP10 at 0V? logic circuit. <- 50dBm Check Check RX_INJ NOTE: Rx/Tx switch. level. RF input level is -47dBm. All the levels indicated have a tolerance of ±10%.
Start >-18DBM >-18DBM Check RF level at C5208. Check RF & IF circuit. Check DC <9V Check DC at circuit. TP14. 9.3V <4.7V Check Check DC at C5251. DC circuit. >1V Check Check ADAPT control circuit. at TP13. -3dBm 2dB Is RF level Check Y5211...
SYNTHESIZER DEVIATION Start Is AUDIO MOD Replace U5702. Controller present at C5700? Is there 212mV on C5750? Check synthesizer loop filter. SYNTHESIZER PENDULUM Start Is 2.1 MHz present Replace R5731. at R5731? Is 16.8 MHz Is 16.8MHz Check C5733 present present and R5715.
NO Tx INJECTION Start Check Q5707 Is 5V present DC circuit. at Q5707-C? Is 2.1 MHz Check Q5701 and present Q5705 DC circuits. at R5731? Check RF path line-up. Troubleshooting Flow Chart for Synthesizer (cont.) Troubleshooting...
START Is Red light on? Go to Is control head control head troubleshooting. Is there Go to controller 5V at Is K9.1 OK? troubleshooting. K9.1 ENB? Is there Replace 9.3V at Q0741 Q0741 and Q0742. or Q0742? Is PA control at ~0V? Go to synthesizer...
Start Apply power to radio and turn on. Are alert tones No/Don’t Was good or bad power-on enabled with RSS? know beep present? Use RSS to enable tones. Reprogram radio with Was good power-on beep RSS. Apply power to present? radio and turn on.
Start Check LCD, U0932, Is SPI Q0953, and ZEBRA Is the display communication connectors. Check controller. Check U0941, Do the LEDs Q0942-4, light? D0942-4. Check U0941, Q0951, Is backlight OK? Q0952,D0951-D0970. Is volume OK? Check U0942, and U0970. Check R915-922, Is keypad R955, and R958.
REFERENCE MOTOROLA DESCRIPTION REFERENCE MOTOROLA DESCRIPTION REFERENCE MOTOROLA DESCRIPTION REFERENCE MOTOROLA DESCRIPTION REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. SYMBOL PART NO. FLF5582A Main Board C418 2311049A05 tantalum 0.47 10% 25V...
8408029Y01 Notes 1 For optimum performance, diodes, transistors and integrated circuits must be ordered by MOTOROLA part numbers. 2. When ordering quartz crystal units or ceramic resonators, specify car- rier frequency, crystal (or resonator) frequency, and crystal (or resona- tor) type number.
U0903 1 For optimum performance, diodes, transistors and integrated circuits J902 2809926G01 SMT header must be ordered by MOTOROLA part numbers. J903 2805924V01 MIC connector 2. When ordering quartz crystal units or ceramic resonators, specify car- rier frequency, crystal (or resonator) frequency, and crystal (or resona- transistors: (See Note) tor) type number.
FLN8752A Manuals (GTX) REFERENCE MOTOROLA DESCRIPTION SYMBOL PART NO. FLN8544A Control Head (LCS 2000) non-referenced items: REFERENCE MOTOROLA DESCRIPTION 6802946C75 User’s Manual SYMBOL PART NO. 6802946C85 Quick Start non-referenced items: 0780360K01 LCD frame FLN8753A Manuals (LCS 2000)
Thank you for your cooperation. In reference to Manual Number: 68P02945C70-O GTX/LCS 2000™ Mobile Radio 1. Please check all the appropriate boxes: Disassembly...
NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 9040 FT. LAUDERDALE, FL POSTAGE WILL BE PAID BY ADDRESSEE Attention: Technical Communications 8000 W. Sunrise Boulevard Ft. Lauderdale, FL 33322 FOLD FOLD (Continued) Please specify the page number along with any corrections or recommendations for improvement.