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Multitone RPR 561 Technical Manual

Radio paging transceiver
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AMENDMENT INSTRUCTION NO. 237
RPR 561/RPR 561K PAGING TRANSCEIVER
The attached amendment should be incorporated in the above Technical Manual
as soon as possible.
In line with the company policy of continued technical advancement, changes to
circuit diagrams and component layout diagrams are continually taking place. It is
not company policy that the technical manual should cover all previous issues of
products but only the latest design state.
changes either the circuit diagram or component layout diagram, it may be prudent
to archive the previous diagrams, particularly if your product is of old design.
AFFECTED
PAGES
(iii)/(iv)
AL1 amendments recorded.
5C-1/5C-2
Correction to part number for Test Probe.
6-3/6-4
Changes to antenna information.
6-7/6-8
Component Change C306 (Band T).
6-9/6-10
Correction to part number for 560n inductor.
6-13/6-14
Component changes
6-15/6-16
Component changes.
7-1/7-2
Contents List updated.
7-17/7-18
Corrections and updates to Figure 8 (Decoder Circuit Diagram
Sheet 1 of 2).
7-19/7-20
Corrections and updates to Figure 9 (Decoder Circuit Diagram
Sheet 2 of 2).
7-23
Component Changes to Figure 11 (Decoder Layout - Side 2).
With the compliments of Multitone Electronics plc
PCN Nos. 4681, 4841, 4899, 5193
TPF003-02 [10/98]
AL1 TO TM1200 ISSUE 1
APRIL 1999
To this end, where an amendment
CHANGE

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Summary of Contents for Multitone RPR 561

  • Page 1 7-19/7-20 Corrections and updates to Figure 9 (Decoder Circuit Diagram Sheet 2 of 2). 7-23 Component Changes to Figure 11 (Decoder Layout - Side 2). With the compliments of Multitone Electronics plc PCN Nos. 4681, 4841, 4899, 5193 TPF003-02 [10/98]...
  • Page 2 RPR 561 TECHNICAL MANUAL RADIO PAGING TRANSCEIVER MODELS RPR 561/RPR 561K Printed and Published in England TM1200 Issue 1 Page (i)
  • Page 3 The information in this manual has been carefully compiled and checked for technical accuracy. Multitone Electronics plc accept no liability for inaccuracies or errors. In line with the company policy of technical advancement, the information within this document may be changed.
  • Page 4 RPR 561 CONTENTS Page (i) Title Page Page (ii) Company Liability Page (iii) Contents Page (iv) Effective Page List Page (v) Safety Summary Warning Page (vi) Caution Section 1 Introduction and Specification Section 2 Operating Instructions Section 3 Technical Description Section 4 Installation &...
  • Page 5 RPR 561 EFFECTIVE PAGE LIST Page No. Issue Page No. Issue Page No. Issue Page No. Issue 2A-1 5-11 1 AL1 (ii) 2A-2 5-12 (iii) 2A-3 5-13 (iv) 1 AL1 2A-4 5-14 5-15 1 AL1 (vi) 5-16 5-17 5-18 6-10...
  • Page 6 RPR 561 SAFETY SUMMARY The following information applies to both operating and servicing personnel. General Warnings and Cautions will be found throughout the manual, where they apply, which refer to the applicable part of this summary. WARNING statements identify conditions or practices that could result in personal injury or loss of life.
  • Page 7 RPR 561 CAUTION STATIC SENSITIVE DEVICES ARE USED WITHIN THIS EQUIPMENT. CARE MUST BE USED TO ENSURE DAMAGE TO THESE DEVICES IS NOT CAUSED BY HIGH LEVELS OF STATIC ELECTRICITY. PROTECT THE TRANSCEIVER FROM LIQUIDS, STRONG MAGNETIC FIELDS AND EXTREME TEMPERATURES. DO NOT LEAVE THE TRANSCEIVER EXPOSED TO STRONG SUNLIGHT.

  • Page 8: Table Of Contents

    RPR 561 SECTION 1 INTRODUCTION & SPECIFICATION CONTENTS: 1. ROLE STANDARD FEATURES 6. Liquid Crystal Display (LCD) 7. Acoustic and Visual Alerts 8. Message Storage 9. Message Length 10. Beep Code Alpha 11. Time-of-Day 12. Automatic Speech Switching 13. Battery Economy Circuit (BEC) 14.

  • Page 9: Role

    Multitone paging systems. Paging calls to the receiver are in Multitone Mk7 digital format which has a capacity of up to 10,000 individual address codes. Visual alert is by flashing LED and eight audible tone alert patterns (Beep Code) are available.

  • Page 10: Standard Features Liquid Crystal Display (Lcd

    RPR 561 STANDARD FEATURES Liquid Crystal Display (LCD) The LCD provides a visual display of up to 14 alphanumeric characters (longer messages are displayed in 14 character blocks). A backlight provides enhanced LCD viewing under low light conditions. Acoustic and Visual Alerts A range of eight different audible tone alert codes (beep codes) are programmed as standard.
  • Page 11 RPR 561 Battery Economy Circuit (BEC) 13. The radio channel is monitored periodically and when no activity is present the receiver circuits are powered down, hence conserving energy and battery life. Display Direction Control 14. The direction of the display may be changed to suit the way in which the transceiver is carried.
  • Page 12 RPR 561 Group Call 20. Group Call is an option which allows the pager to be operated as part of a group (or team). If enabled, any call to the group will alert the user audibly. The Group size may be none, 10 or 100 as required.
  • Page 13 The default Switch-On message is "Multitone 560" and the default Rack message is "Absent". Page 1 - 6 TM1200 Issue 1...
  • Page 14 RPR 561 SPECIFICATION Receiver 32. The following parameters apply to the receiver section of the transceiver: Frequency Range: 25 - 54MHz Frequency Bands: 25.000 - 26.249 MHz 26.250 - 27.499 MHz 27.500 - 28.999 MHz 29.000 - 30.499 MHz 39.000 - 43.499 MHz 48.500 - 51.249 MHz...
  • Page 15 RPR 561 Transmitter 33. The following parameters apply to the transmitter section of the transceiver: Frequency Range: 138 - 174.100MHz Frequency Bands: Z: 138.000 - 140.499MHz Y: 140.500 - 142.999MHz X: 143.000 - 146.999MHz W: 147.000 - 150.999MHz V: 151.000 - 154.999MHz U: 155.000 - 158.999MHz...
  • Page 16 34. The transceiver signalling parameters are as follows: Tone Squelch Frequencies: 88.5, 103.5, 114.8, 127.3, 141.3, 151.4, 167.9Hz Paging Code Format: Multitone Mk7 digital format (Manchester encoded). DTMF Frequency Pairs: see Table 1. Table 1: DTMF Frequency Pairs HIGH FREQUENCY GROUP (Hz)
  • Page 17 RPR 561 Controls, Indicators, Alerts 36. The following controls, indicators and alerts are available: Controls: Keypad (15 keys on RPR 561K, 3 keys on RPR 561). Press-to-Talk button. On/Cancel button. Indicators: 14 character (7 x 5 dot matrix) Liquid Crystal Display (LCD).
  • Page 18 RPR 561 SECTION 2 OPERATING INSTRUCTIONS CONTENTS: 1. CONTROLS AND INDICATORS OPERATION 5. Fitting the Battery Pack 7. Switching On 9. Quiescent Mode 10. Receiving a Non-Speech Call 17. Receiving a Paging Speech Call 21. Receiving a Speech Call (Telephone Style) 24.
  • Page 19 RPR 561 CONTENTS (Continued) FIGURES: Page Transceiver 2 - 3 DTMF Keypad and Function Keys 2 - 4 Fitting the Battery Pack 2 - 5 Switch On Sequence 2 - 6 ANNEXE: Engineering Mode WARNING THE TRANSCEIVER SHOULD NOT BE CARRIED INTO AREAS WHERE EXPLOSIVE GASES MAY BE PRESENT.
  • Page 20 RPR 561 CONTROLS AND INDICATORS Controls and indicators for the transceiver are shown in Figure 2. TAG10665-2 KEY: Microphone Loudspeaker Function Keys DTMF Keypad (RPR561K only) Press-to-Talk Button Antenna Cancel/On/Memory Button Wrist Strap Loop Alert LED Pocket Clip Liquid Crystal Display...
  • Page 21 RPR 561 DTMF KEYPAD (`K' VERSIONS ONLY) FUNCTION KEYS TAG10666-1 Figure 2: DTMF Keypad and Function Keys The following controls are found on both the full and reduced keypad versions of the transceiver: PRESS-TO-TALK Used to manually key the transmitter on (paging calls only).
  • Page 22 RPR 561 The transceiver has the following indicators: A 14-character alphanumeric display. This displays paging call messages, and transceiver and system status messages. Tx KEY Lights when the transmitter is active. ALERT Lights when a paging call has been received.
  • Page 23 RPR 561 Switching On Check that a fully-charged battery pack has been fitted. Press once. The transceiver will initiate its switch on sequence as shown in Figure 4. SECONDS QUIET TONE (2.73kHz) * ALERT LAMP SHOW ALL LCD SEGMENTS RECEIVER ADDRESS...

  • Page 24: Message Length

    RPR 561 11. The displayed message comprises combinations of the following elements: Element Example Time stamp + space 12:00 Beep Code (Tone Only message) Speech call Speech Beep code alpha Fire Off-Air Message (Alpha) Please call reception Message Terminator ** or **? 12.
  • Page 25 RPR 561 16. The transceiver is able to receive new calls during an alert, although receiver sensitivity may be degraded. The new call takes over the previous call, which is placed in memory. Preceding calls have "new" status unless cancelled during the alert.
  • Page 26 RPR 561 Loud Speech (Simplex) 24. Under some circumstances telephone-style communication will not be possible, e.g. noisy environment, wearing of protective headgear. The high volume levels required for listening would inhibit operation because of feedback. In this situation, simplex operation is desirable.
  • Page 27 RPR 561 Table 2: Beep Code and Alert Patterns PIP/BEEP TONE ALERT PATTERN BEEP CODE Single Beep Double Beep Triple Beep Continuous Beep Single Pip Double Pip Triple Pip Continuous Pip Silent Alert The escalating alert and the Mute mode are overridden by beep code 5 (triple pip) and beep code 8 (continuous pip).
  • Page 28 RPR 561 Memory Replay 31. Incoming messages are automatically entered into the transceiver's memory store which can accommodate up to five calls. To start the memory replay cycle, from the quiescent display, press the button twice. If in extended alert, press the key once only.
  • Page 29 RPR 561 38. On reduced keypad versions, connection to the designated point is automatic once has been pressed. Making a Call to a Telephone (RPR 561K only) 39. Once the dialling tone has been received, the telephone number may be dialled as if calling from another telephone.
  • Page 30 RPR 561 47. If a team call is transmitted the paging system will override and terminate the call without prior warning. The transceiver that has been overridden will display the message "Call Override". Program Volume Modes 48. Pressing followed by [1], followed by a DTMF key between 1 and 5 initiates the...
  • Page 31 RPR 561 ABSENCE RACK REGISTRATION AND CHARGING 53. The transceiver contains a rack message which may be up to a maximum of nine characters in length. The factory programmed default rack message "Absent" may be changed by using Programming Unit P648 and programming software P648T, together with an IBM PC or compatible personal computer.
  • Page 32 RPR 561 ANNEXE A TO SECTION 2 ENGINEERING MODE CONTENTS: INTRODUCTION ENGINEERING STATES ENGINEERING MODE CHARACTERS TABLES Page Engineering States 2A-2 Conversion of HEX to Binary 2A-3 ))))))))))))))))))))))) INTRODUCTION The Engineering Mode allows the user to check which options have been selected, without having to use the programming equipment.
  • Page 33 RPR 561 Table 1: Engineering States ENGINEERING DESCRIPTION STATE Bytes 0-3 of EEPROM displayed Bytes 4-7 of EEPROM displayed Bytes 8-B of EEPROM displayed Bytes C-F of EEPROM displayed Lamp on and address displayed Quiet tone Normal tone Out-of-range buzz...
  • Page 34 RPR 561 The programmed options for each hex character position can now be read by referring to paragraph 9. For example, the binary value at character position 3 is 0001, identifying Display Mode as `On-Demand', and Alert Duration set to 8 seconds.

  • Page 35: Beep Code Alpha

    RPR 561 E1:43 85 E1 03 POSITION: HEX VALUE: BINARY: 0100 0011 1000 0101 1110 0001 0000 0011 POS 9: BEEP CODE FOR BEEP CODE POS 14: Mk7 CODE SYSTEM NUMBER ALPHA (SLOT 2) 00-- Fixed Value 0100 Fixed Value --00 System No.
  • Page 36 RPR 561 SECTION 3 TECHNICAL DESCRIPTION CONTENTS: 1. CIRCUIT SUMMARY RADIO BOARD 7. Power Supplies 10. Receiver 17. Data Filter 18. Noise Squelch 23. Sub-Audio Tone Generator 24. Transmitter DECODER BOARD 35. Power Supplies 39. Receiver Audio Stages 41. Microphone Audio Stages 42.

  • Page 37: Circuit Summary

    RPR 561 CIRCUIT SUMMARY The transceiver comprises two printed circuit boards, the Radio Board and Decoder Board, which are connected directly to each other via a 14-way plug and socket. The Radio Board carries all the components for the transmitter and receiver with the exception of the microphone and loudspeaker circuits.

  • Page 38: Radio Board

    RPR 561 RADIO BOARD Power Supplies PL301 TxB+ SWB+/B+ TR319 TR44 Tx DRIVERS SQB+ & PA R338 TR23 SK301 R344 SW3V BEC.EN TR20/IC1 1V REG TxKEY TxREG MIC+ TR15/TR16 Tx SPEECH SPEECH3V SUB-AUDIO TAG10668-1 Figure 1: Radio Board - Power Supply Distribution Battery Voltage (B+), TxB+, SPEECH3V and the +4.5V supply lines are derived from...

  • Page 39: Receiver

    RPR 561 Receiver 10. A block diagram of the receiver is shown in Figure 2. 11. Receiver antenna AE302/303 is tuned by CV3, CV5, C103 and C105. Signals from the antenna are fed to the cascode amplifier TR35,TR55, to provide a high Q output.

  • Page 41: Sub-Audio Tone Generator

    RPR 561 Data Filter 17. The data signal passes through low-pass filter Transistor TR24 which is controlled by the Battery Economy Circuit (BEC). The data signal is then fed to IC1 pin 15 where it is squared up and output at pin 16. This open collector output is then fed via TR26 to the Decoder Board.

  • Page 42: Transmitter

    RPR 561 Transmitter 24. A block diagram of the transmitter is shown in Figure 3. Tx TONE TR17, TR21, TR18 TR22 LOW-PASS FILTERS IC5a TR15/16 SUMMING CLAMP AMPLIFIER IC5b RV301 MOD GAIN DTMF FL301 TR301 TR302 TR303 T303 BUFFER/ OSCILLATOR/...
  • Page 43 RPR 561 27. IC5 acts as an amplifier and combiner for the speech, sub-audio tone and DTMF signals to be transmitted. Modulation is taken from RV301 wiper and applied to the transmitter modulator. 28. The transmitter oscillator is formed by TR301 using a series resonant crystal XL301.

  • Page 44: Decoder Board

    RPR 561 DECODER BOARD Power Supplies 35. Battery voltage (B+) is supplied from the battery pack at PL101 pin 3 and is split into two supplies, B+ and TxB+. TxB+ powers the Radio Board transmitter power amplifier only, via SK101 pin 13. B+ is used on both the Radio and Decoder Boards, the Radio Board connection being at SK101 pin 7.

  • Page 45: Receiver Audio Stages

    RPR 561 MIC.SIG TR126 IC106 MIC+ PRE-AMP PRE-AMP SPEECH3V TR122 TR120,121 SP.EN ARDATA IC102 TONE.Rx EEPROM TxDTMF LCD101 IC101 MODULE µP S103 KEYPAD D0-D3 DATA TR111-114 VOLUME IC105 SWITCH GATE ARRAY SQUELCH LS101 S101 BEEP IC107 IC106 CANCEL PRE-AMP AMPLIFIER...

  • Page 46: Microphone Audio Stages

    RPR 561 Microphone Audio Stages 41. Audio from the microphone is fed via C137 to IC106 at pin 6. It is then amplified and fast AGC-limited by IC106, D105, TR120 and TR121 to give a maximum level of 1.2V peak-to-peak. Microphone audio is then output at SK101 pin 8 to the Radio Board.

  • Page 47: Battery Pack

    49. Contacts for charging and transceiver programming are provided on the battery pack. The contacts used for programming may also be used for absence registration on Multitone paging systems that provide that facility. 50. A thermistor is provided to allow fast charging circuits to sense battery temperature as a part of their control loop.
  • Page 48 RPR 561 SECTION 4 INSTALLATION AND COMMISSIONING Any relevant information on the installation and commissioning procedures for the transceiver is contained within Section 2 of this manual. TM1200 Issue 1 Page 4 - 1...
  • Page 49 RPR 561 INTENTIONALLY BLANK Page 4 - 2 TM1200 Issue 1...
  • Page 50 RPR 561 SECTION 5 SERVICING CONTENTS: ROUTINE MAINTENANCE SERVICE POLICY WORKSHOP PROVISIONS TEST EQUIPMENT, TOOLS AND ANCILLARIES Test Equipment Tools and Ancillaries DISASSEMBLY Belt Clip Assembly Removing the Antenna 10. Decasing the Transceiver 11. Removing the Display Module 12. Re-Assembly FAULT FINDING 14.
  • Page 51 RPR 561 TABLES Page Radio Board DC Levels (A) 5 - 16 Radio Board DC Levels (B) 5 - 17 Decoder Circuit Detailed Test Sequence 5 - 18 Decoder Board DC Levels 5 - 20 Microprocessor (IC101) Pin Connections 5 - 21...

  • Page 52: Routine Maintenance

    RPR 561 ROUTINE MAINTENANCE This is limited to battery replacement and surface cleaning of the outer case using a lint free cloth moistened with soapy water. Spirit or other solvents should not be used as this may damage the case.

  • Page 53: Tools And Ancillaries

    RPR 561 UHF Frequency Counter. AF Frequency Counter. SINAD Meter. AC Millivoltmeter. Modulation Meter. AF Signal Generator. Digital Multimeter. P800 TEM Cell. * Equipment to have 50mW, 50S input Tools and Ancillaries The following tools and ancillaries are required: Power Supply Unit, 3.6V DC Trimming Tools 2.5mm Cross-point screwdriver...

  • Page 54: Belt Clip Assembly

    RPR 561 DISASSEMBLY Belt Clip Assembly Referring to Figure 1, apply pressure to the centre of the clip (marked `A') so that its mounting spring sits proud of its recess, then use a 4mm wide blade (at position `B') to prise the spring away from the case.
  • Page 55 RPR 561 PSG10518-1 Figure 2: Decasing the Transceiver c) With the transceiver held face downwards, squeeze the sides of the case at point `C'. At the same time hook the first and second fingers of the other hand round the lip at the end of the case back, and then peel back.
  • Page 56 RPR 561 TAG10667-2 KEY: Case Front Pocket Clip Speaker Radio Board Retainer (Speaker) Decoder Board Display Module Battery Connector PCB Case Rear Keypad Membrane Antenna Battery Pack Figure 3: Exploded Diagram - Transceiver TM1200 Issue 1 Page 5 - 7...

  • Page 57: Removing The Display Module

    RPR 561 Removing the Display Module 11. The procedure for removing the Display Module is as follows: a) Unclip the Interface moulding from the Display Module. b) Remove the two screws securing the moulding to the Decoder PCB. Remove the moulding.

  • Page 58: Low Battery' Circuit Test

    RPR 561 15. The location of test points are shown in Figure 5. `Low Battery' Circuit Test 16. The `Low Battery' option must be enabled in the EEPROM if operation of this circuit is to be checked. The procedure for checking operation is as follows: a) Remove the case back and Radio Board.
  • Page 59 RPR 561 TP303 TP306 TP302 (NOT USED) (SPEECH3V) (GND) TP301 TP305 (B+) (BEC) TP308 TP307 (Tx TONE) (AUDIOX) SK301 TP309 (Tx KEY) ANTENNA GUIDE ANTENNA Rx ANTENNA CONTACT (AE302) PA FILTER TP304 SCREEN (455kHz AMP) EXCITER SCREEN TAG10864-1 Figure 5: Radio Board - Location of Test Points and Main Assemblies...
  • Page 60 RPR 561 TRANSCEIVER SUSPECT FIT NEW BATTERY PACK AND SWITCH ON. ARE ALL LCD SEGMENTS VISIBLE DURING SWITCH- ON SEQUENCE? BLANK FLASHING IS DISPLAY BLANK OR FLASHING? CORRUPTED EEPROM. REMOVE BATTERY, DOES RED LED LIGHT PAUSE, RE-FIT BATTERY. DURING SWITCH-ON...
  • Page 61 RPR 561 SEND CALL. IS CALL RECEIVED? CHECK REMOVE CASE BACK & >3dBm LOW ANTENNA. FIT MODIFIED SENSITIVTY. CASE BACK & RE-FIT BATTERY. RECEIVER O.K. RE-ALIGN Rx CHECK DISABLE BEC BY AND RE-TEST. TRANSMITTER CONNECTING TEST LEAD. IS 1V LINE OK? CHECK TR20, TR23 &...
  • Page 62 RPR 561 INJECT 455kHz SIGNAL (1kHz MODULATION) AT C98. SET LEVEL TO -30dBm. IS 1kHz TONE PRESENT AT SK301 PIN12? CHECK TR32. APPLY MODULATED SIGNAL (AT CHANNEL FREQUENCY) TO C98. IS TONE PRESENT AT SK301 PIN 12? CHECK TR31, XL11 AND L305.
  • Page 63 RPR 561 TRANSMITTER SUSPECT CONNECT A FULLY-CHARGED BATTERY PACK. REMOVE ANTENNA, CONNECT POWER METER AND FREQUENCY COUNTER VIA Tx O/P CONNECTOR TO P654. PUT TRANSCEIVER INTO ENGINEERING TEST MODE 4. KEY UP TRANSMITTER. IS RF #20mW NONE POWER GREATER THAN 20mW?
  • Page 64 RPR 561 TELEPHONE MODE SUSPECT PRESS GREEN BUTTON DOES MESSAGE `PLEASE WAIT' APPEAR ON DISPLAY? FAULTY KEYPAD. ARE DTMF TONES CHECK IC101, PINS 28 GENERATED? AND 32. IS MESSAGE `PLEASE WAIT' DISPLAYED? SYSTEM BUSY. TRY AGAIN CHECK DECODER CIRCUIT &...
  • Page 65 RPR 561 Table 1: Radio Board DC Levels (A) COMP COLL’TR BASE EMITTER REMARKS TR14 Tx DTMF MIC DISABLE TR15 Tx MIC CLAMP TR16 Tx MIC CLAMP TR17 Tx MIC LOW-PASS FILTER TR18 Tx MIC LOW-PASS FILTER TR19 Tx TONE TR20 1.02...
  • Page 66 RPR 561 Table 2: Radio Board DC Levels (B) COMP. COLLT'R BASE EMITTER REMARKS TR45 SCHMITT TRIGGER NOISE SQUELCH TR46 SCHMITT TRIGGER NOISE SQUELCH TR47 SCHMITT TRIGGER NOISE SQUELCH TR48 Rx SQUELCH SWITCH TR49 0.08 0.53 Rx SQUELCH SWITCH TR50...
  • Page 67 RPR 561 Decoder Faults 17. If the Decoder PCB is suspect, proceed as follows: a) Remove the case back. b) Separate the two PCBs and connect them via the 14-way lead (supplied with the P665). c) Place the two PCBs on an anti-static mat. Connect a fully-charged battery pack and switch on.
  • Page 68 RPR 561 IC105 PIN 3 f = 32kHz (CLOCK) 140Fs IC101 PIN 8 (SCK) (INTERRUPT) IC105 PIN 68 (TMI) 100Fs IC101 PIN 38 (X2) .8.4ms 125ms IC105 PIN 26 WHEN CANCEL IS PRESSED 200Fs IC105 PIN 9 (BEC) 30ms NOTE: WAVEFORMS ARE TAKEN IN BATTERY ECONOMY MODE UNLESS STATED OTHERWISE.
  • Page 69 RPR 561 Table 4: Decoder Board DC Levels COMP. COLLT'R BASE EMITTER REMARKS TR101 0.55 0.55 0.07 4.5V REGULATOR TR102 2.96 0.55 CURRENT MIRROR CONTROL TR103 3.25 2.96 3.52 CURRENT MIRROR CONTROL TR104 0.15 3.25 3.52 CURRENT MIRROR CONTROL TR105 0.06...
  • Page 70 RPR 561 Table 5: Microprocessor (IC101) Pin Connections PIN No. CCT REF DESCRIPTION INT4 DATA INTERRUPT (INPUT) EEPROM CLOCK OUTPUT DATA OUT DATA IN SYNC DETECT(INT0) (INPUT) SWITCH/TIMER INTERRUPT (INPUT) /TONE.Rx DETECT SAMPLING CLOCK INPUT E (DISPLAY DATA CLOCK) OUTPUT...
  • Page 71 RPR 561 Table 6: Gate Array (IC105) Pin Connections NAME DESCRIPTION OSEN Oscillator cell enable Clock input: 512 baud = 32.768kHz, 1200 baud = 38.400kHz RESB Reset input: 0 = reset Data input Radio enable: 0 = radio on, 1 = radio off VDD1 Low voltage supply rail (0.9V - 1.5V)
  • Page 72 RPR 561 BAT 74 µP (IC101) SCI7700YBA BAV 99 KV1410 BCW33 BFR520 BCW61C BFS17 BCX17 NE02133-D UPD 65026 BFR182 NE85619 BFG196 BAKUPB+ TEST CONTROL INPUT GROUND GROUND 24C16 FILTER OUTPUT TK11325 OUTPUT1 -INPUT1 +INPUT1 OUTPUT2 +INPUT2 -INPUT2 IF1 IN DE-COUPLE...
  • Page 73 RPR 561 ALIGNMENT PROCEDURE Preliminaries NOTE: For P655 Alignment Jig details, refer to Section 5, Annexe C. 18. Prior to alignment, carry out the following procedure: a) Remove the antenna and case back. Fit a fully-charged battery pack. It may be advantageous to fit a modified case back (see Section 5, Annexe C for details) to provide extra support for the battery pack.
  • Page 74 RPR 561 TP303 TP306 TP301 TP302 SK301 TP308 TP305 TP307 TP309 TP304 RV301 RV302 TAG10865-1 Figure 14: Radio Board - Alignment Diagram b) Tune the RF signal generator to 455kHz, unmodulated output, and loosely-couple over the receiver. Set the oscilloscope to DC coupling and 1kHz per division display movement.
  • Page 75 RPR 561 d) Connect the RF signal generator to the BNC socket at the base of the P665. Re-tune the signal generator to ±50Hz of the receiver carrier frequency at a level of -40dBm. e) Select external modulation and ALC on the signal generator. Feed the Sinadder output to the modulation input connector of the signal generator and set FM deviation to ±3kHz.
  • Page 76 RPR 561 d) Insert the transceiver into the P665 and screw the Test Probe into the jig. Connect a wire to the test pad as shown in Figure 16 and wrap it at least three times round the probe. e) Adjust RV302 obtain the correct transmitter carrier frequency (±50Hz).
  • Page 77 RPR 561 Sub-Audio Tone Frequency 21. The procedure for adjusting the sub-audio tone frequency (tone squelch) is as follows: a) Connect the test equipment to the P665 as shown in Figure 17. P665 ALIGNMENT JIG Tx TONE (13) COUNTER SK301...
  • Page 78 RPR 561 PERFORMANCE CHECKS Receiver Sensitivity Check 22. To determine receiver sensitivity, carry out the following procedure: a) Connect the test equipment to the P665 as shown in Figure 18. NOTES: The distance between the personal computer and the P665 must not be less than 2 metres.
  • Page 79 RPR 561 Transmitter Power Measurement 23. The P665 alignment jig may be used to measure conducted transmitter power or radiated transmitter power. 24. To measure conducted power, proceed as follows: a) Set the transceiver into permanent transmit by initiating Engineering Test Mode 4, or by connecting SK301, pin 1 to pin 10 (Tx Key to 0V).

  • Page 80: Extended Alert

    RPR 561 ANNEXE A TO SECTION 5 ENGINEERING TEST PROGRAM MODE CONTENTS: ENTERING TEST PROGRAM MODE TEST MODE 1 TEST MODE 2 10. TEST MODE 3 11. TEST MODE 4 )))))))))))))))))))) ENTERING TEST PROGRAM MODE Four test modes are available via an Engineering Test Program Mode. To enter the Test Program mode, press , [9], [8], [7], [1] in order.

  • Page 81: Call Comparator

    RPR 561 If the call is to the transceiver's individual address, any speech and/or message is ignored and the transceiver will return to battery economy mode. If the call is to the All- Call address, all messages are ignored but the receiver speech circuits will be enabled for 2 to 4 seconds.
  • Page 82 RPR 561 ANNEXE B TO SECTION 5 P648 PROGRAMMING UNIT CONTENTS: INTRODUCTION EQUIPMENT PROCEDURE ))))))))))))))))))))))) INTRODUCTION This Annexe describes how to program RPR 560-series transceivers using the P648 Programming Unit. The programming unit comprises a pocket into which the transceiver, complete with battery pack, is inserted. The pocket makes the relevant connections between the data contacts of the battery pack and a personal computer.
  • Page 83 RPR 561 PROCEDURE Perform the following procedure: Connect the P648 Programming Unit into the serial port (COM1) of the PC. Fit a fully-charged battery pack. Switch on the transceiver and insert it into the P648. Read the `Readme' file contained with the P648T software. The `Readme' file describes how to use the programming facility.

  • Page 84: Transmitter

    RPR 561 ANNEXE C TO SECTION 5 P665 ALIGNMENT JIG CONTENTS: INTRODUCTION LIST OF ACCESSORIES FIGURE Page P665 Alignment Jig 5C-2 ))))))))))))))))))))))) INTRODUCTION The P665 Alignment Jig has been designed to facilitate alignment of RPR 560-series transceivers. It allows accurate measurement of sensitivity, eliminating the need for verification in a TEM Cell.
  • Page 85 RPR 561 Figure 1: P665 Alignment Jig LIST OF ACCESSORIES Description Part No. Test Probe, VHF 0161-3926 Cable Assembly, Umbilical, 14-way, (Radio Board-Decoder Board) 0201-0655 Test Lead Assembly, 14-way, (1/Test Socket) 0201-0656 Page 5C - 2 TM1200 Issue 1 AL1 (April 1999)
  • Page 86 RPR 561 ANNEXE D TO SECTION 5 MODIFIED CASE BACK INTRODUCTION In order to locate the battery pack securely during alignment, it may be advantageous to fabricate a case back which allows access to tuning and test points. Refer to Figure 1.
  • Page 87 RPR 561 INTENTIONALLY BLANK Page 5D - 2 TM1200 Issue 1...

  • Page 88: Spare Parts List

    RPR 561 SECTION 6 SPARE PARTS LIST CONTENTS FREQUENCY BAND INFORMATION 1. Receiver Bands 2. Transmitter Bands ASSEMBLIES 3. Modules 4. Battery Packs 5. Case Parts 6. Antennas 7. Labels RADIO BOARD COMPONENTS 8. Capacitors 9. Banded Capacitors (Rx) 10. Banded Capacitors (Tx) 11.

  • Page 89: Frequency Band Information

    RPR 561 FREQUENCY BAND INFORMATION Receiver Bands (Band 1) 25.000 26.249 MHz (Band 2) 26.250 27.499 MHz (Band 3) 27.500 28.999 MHz (Band 4) 29.000 30.499 MHz (Band 9) 39.000 43.499 MHz (Band 12) 48.500 51.249 MHz (Band 13) 51.250 54.000 MHz...

  • Page 90: Modules

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. ASSEMBLIES Modules LCD101 DISPLAY MODULE 5206-0017 BATTERY INTERFACE PCB ASSEMBLY 0261-1858 Battery Packs BATTERY, MEDIUM CAPACITY P566 BATTERY, HIGH CAPACITY P565 Case Parts GRIPTITE CLIP 0201-0565 CASE FRONT 15-KEY 0361-2471 CASE FRONT 3-KEY...

  • Page 91: Radio Board Components

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. RADIO BOARD COMPONENTS Capacitors C35,36,53,59,86,92,117, 119,120,122,123,125,127, 131,143,146,150,163 CAP CHIP 1n ±10% 50V 3327-0013 C37,58,83,84,85,90,144,147, 148,162 CAP CHIP 10n ±10% 50V 3327-0025 C38,49,70,115,138,154,173,317 CAP CHIP 100p ±5% 50V 3326-0027 C39,54,68,88,121,124,137,142, 164,175,188 CAP CHIP TANT 10µ ±10% 6.3V...

  • Page 92: Banded Capacitors (Rx)

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. Capacitors (Continued) C304,309 CAP CER 390p ±5% 50V 3326-0034 C316 CAP, CHIP 2p2 ±0p25 50v 3326-0007 C319,325 CAP CHIP 10n ±10% 50V 3327-0025 C321 CAP CHIP 2n2 ±10% 50V 3327-0017 C323,330,334,335,337 CAP CHIP 1µ -20/+80% 16V...
  • Page 93 RPR 561 Banded Capacitors (Rx) (Continued) CCT REF 680p 470p 680p 690p 680p 680p 680p 680p 470p 390p 330p 330p C94, C95 C103 100p 100p C104 C105 100p C106 220p 270p 220p 270p 270p 220p C128 C189 680p 680p 680p...

  • Page 94: Banded Capacitors (Tx)

    RPR 561 10. Banded Capacitors (Tx) BAND: C306 C308 C310 100p 100p C311 C314 C318 C328 C329 C331 C332 C352 C355 C361 270p 270p 270p 270p 270p C478 C502 BAND: C306 C308 C310 C311 C314 C318 C328 C329 C331 C352...

  • Page 95: Crystals

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. 11. Crystals XL11 CRYSTAL, LOCAL OSC, RECEIVER 3927-FREQUENCY XL301 CRYSTAL, TRANSMITTER OSCILLATOR 3938-FREQUENCY 12. Filters FILTER CDBM455C7 4003-0003 13. Banded Filters (Rx) CCT REF 20/25kHz 10/12.5kHz FL2,3,4 4018-0003 4018-0004 14. Banded Filters (Tx)

  • Page 96: Banded Inductors (Rx)

    RPR 561 16. Banded Inductors (Rx) CCT REF 680n 680n 680n 680n 680n 680n 560n 680n 680n 680n 680n 680n 680n 680n L305 1µ 820n 1µ 820n 820n 680n 680n CCT REF 680n 680n 680n 680n 680n 680n 680n 680n...

  • Page 97: Banded Inductors (Tx)

    RPR 561 17. Banded Inductors (Tx) CCT REF L304 560n 560n 560n 560n 560n L314 L318 L321 100n 100n L322 L325 CCT REF L304 560n 470n 470n 390n 390n L314 L318 L321 L322 L325 DESCRIPTION PART No. INDUCTOR, CHIP 27n ±5% 4103-0247 INDUCTOR, CHIP 33n ±5%...

  • Page 98: Resistors

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. 18. Resistors R37,376 RES CHIP 22k ±5% 3115-0106 R38,40,44,49,51,57,86,91, RES CHIP 10k ±5% 3115-0098 R39,45,46,53,54 RES CHIP 270k ±5% 3115-0132 R41,62 CHIP RES 10S ±5% 3115-0026 R42,52,59,420 RES CHIP 1M ±5% 3115-0146 R43,47,48,55,56,83,87,92, RES CHIP 100k ±5%...

  • Page 99: Banded Resistors (Rx)

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. Resistors (Continued) R375,397 RES, CHIP 330S ±5% 3115-0062 R381,386,399,412 RES, CHIP 47k ±5% 3115-0114 R383,388,398 RES CHIP 18 ±5% 3115-0104 R385 RES CHIP 0S ±5% 3115-0001 R391 RES, CHIP 1k8 ±5% 3115-0080 R395 RES CHIP 6k8 ±2%...

  • Page 100: Semiconductors

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. 21. Semiconductors D1,3 DIODE, CHIP BAT 74 3710-0002 D301 DIODE VARICAP KV1410 3701-0031 TR14-19,21,22,25,26,28,29, 36,38-43,49-53 TRANS BCW33 3602-0010 TR20 TRANS BCX17 3602-0026 TR23,24,27,37,42,44-48 TRANS BCW61C 3602-0018 TR31,32,35,55,301 TRANSISTOR NE85619 OR 2SC5006 3601-0013 TR302,303,327...

  • Page 101: Decoder Board Components

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. DECODER BOARD COMPONENTS 23. Capacitors C101,102,123,134,140,149-151, CAP CHIP 33µ 7V 3325-0002 C103,110,111,114-116,118-120, 127,131-133,137,142,157-161 CAP CHIP 100n +80-20% 16V 3329-0013 C104-106,117,148,175 CAP CHIP 1n ±10% 50V 3327-0013 C107,128-129,139,141,144, 156,168 CAP CHIP 1µ -20/+80% 16V...
  • Page 102 RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. Resistors (Continued) R111 RES,CHIP 18k ±2% 3118-0104 R114,144,145,508 RES CHIP 470k ±5% 3115-0138 R115,143,149,176,514,516 RES CHIP 1k ±5% 3115-0074 R117,148,161 RES CHIP 470S ±5% 3115-0066 R121 RES CHIP 4M7 ±5% 3115-0162 R123,130 RES, CHIP 1k2 ±5%...

  • Page 103: Semiconductors

    RPR 561 ITEM/CIRCUIT REFERENCE DESCRIPTION PART No. 25. Semiconductors D101 LED, RED TLLR4401 3704-0020 D102,104-109,121,123,124 DIODE, CHIP BAT 74 3710-0002 D103 LED, GREEN 3mm DIA 3704-0024 D110-117 LED, SMD YELLOW/GREEN 3704-0023 D118,120,126 DIODE GF1A 3703-0049 D119 DIODE ZENER CHIP BZX84C6V2...
  • Page 104 RPR 561 SECTION 7 DIAGRAMS CONTENTS Source Drawing Page 1. Radio Board Circuit Diagram (Sheet 1 of 5) 2961-3999 Iss. 1 7 - 3/4 Sheet 5 2. Radio Board Circuit Diagram (Sheet 2 of 5) 2961-3999 Iss. 1 7 - 5/6 Sheet 4 3.
  • Page 105 RPR 561 INTENTIONALLY BLANK Page 7 - 2 TM1200 Issue 1...

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