GME CM60 Series Service Manual

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CM60 SERIES

SERVICE MANUAL

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Page 1 CM60 SERIES SERVICE MANUAL...
Page 2: Copyright Notice
CM60 Series Service Manual Copyright Notice Standard Communications Pty Ltd reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without the express permission is strictly prohibited. © 2017 Standard Communications Pty Ltd, Sydney, Australia...
Page 3 CM60 Series Service Manual This radio complies with the following RF energy exposure standards and guidelines: United States Federal Communications Commission, Code of Federal Regulations; 47CFR • part 2 sub-part J American National Standards Institute (ANSI)/Institute of Electrical and Electronic •...
Page 4: Warranty
Warranty This warranty against defects is given by Standard Communications Pty Ltd ACN 000 346 814 (We, us, our or GME). Our contact details are set out in clause 2.h. 1. Consumer guarantees: Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Page 5 (f) goods where the serial number has been removed or made illegal. 4. Warranty period: We provide the following warranty on GME and Kingray products. No repair or replacement during the warranty period will renew or extend the warranty period past the period from original date of purchase.
Page 6: Record Of Amendments
CM60 Series Service Manual Record of Amendments Rev. Date Description March 2018 Original Issue KP/PMV March 2018 Minor updates to content and circuit diagrams. © 2018 Standard Communications Pty Ltd. All rights reserved. 20 March 2018 49637-2...
Page 7: Table Of Contents
Table of Contents CM60 Series Service Manual Table of Contents Specifications ..........................9 General ............................. 9 Transmitter ..........................9 Receiver ..........................10 Audio ............................10 Mechanical ..........................10 Environmental ......................... 11 Models ............................12 Overview ..........................12 Available Models ........................12 Microphones ........................
Page 8 Table of Contents CM60 Series Service Manual Mounting Bracket ........................36 Fitting the Radio ........................37 Removing the Radio ........................ 37 DC Power Connection ......................38 Fitting and Removing the Fist Microphone ................38 Fitting and removing the Controller Microphone ..............39 Antenna ..........................
Page 9: Specifications
Specification CM60 Series Service Manual Specifications General Type Description RF Performance Compliant with AS/NZS 4295 | ETS 300-086 | TIA-603-C Frequency Band VHF 136 to 174MHz | UHF LO 400 to 480MHz | UHF HI 450 to 520 Number of Channels...
Page 10: Receiver
Specification CM60 Series Service Manual Receiver Type Description Circuit Type Double Conversion Superheterodyne, DC coupled, DSP audio processing IF Frequencies 21.4MHz (VHF) | 38.85MHz (UHF), 450 kHz Analog Sensitivity -122dBm for 12dB SINAD unweighted Digital Sensitivity -122dBm C4FM for 5% BER...
Page 11: Environmental
Specification CM60 Series Service Manual Environmental Type Description Operating Temperature Range -30°C to 60°C -22°F to 140°F Storage Temperature Range -30°C to 70°C -22°F to 158°F Shock and Vibration MILSPEC 810 Ingress Protection Rating IP54 © 2018 Standard Communications Pty Ltd. All rights reserved.
Page 12: Models
Models CM60 Series Service Manual Models Overview The CM60 series of P25 capable 25W mobile radios is available in VHF, and UHF high and low versions. Available Models Model Control Interface Frequency Range Output Power CM60-V25L Local 136 – 174 MHz...
Page 13 Models CM60 Series Service Manual UIC600 Controller Microphone The UIC600 controller microphone has the following keys: Emergency • • Volume up • Volume down • Power • Up scroll • Down scroll • 12 Alphanumeric keys • F1 - F5 Programmable keys •...
Page 14: Description
Description CM60 Series Service Manual Description Overview The section describes the connection and control interfaces of the CM60 series radios and the technical details of the design. Physical Description The CM60 radio can be set up in the following configurations: Local setup •...
Page 15 Description CM60 Series Service Manual RJ12 Rear socket Extension Antenna (Factory used only) speaker socket 12VDC connection Figure 2 - Local Control CM60 Radio Rear View Call Programmable key PTT button Microphone Down key Programmable key Up key Figure 3 - MP600 Fist Microphone ©...
Page 16: Remote Setup
Description CM60 Series Service Manual Remote Setup The RJ45 socket on the remote control panel is only used with the controller microphone or the remote control head. RJ45 socket Figure 4 - Remote Control Head Radio Front View Rotate for channel control/SEL...
Page 17: Extended Setup
Description CM60 Series Service Manual Extended Setup RJ45 socket Figure 6 - Remote Control CM60 Radio Front View Emergency button Power button Microphone Status LED Programmable B button CLR (clear) PTT (push to talk) Up/down scroll keys A button SEL (select)
Page 18: Technical Description
Description CM60 Series Service Manual Technical Description Power Supply The radio is designed to operate from a nominal 13.8V DC power source via DC input socket SK901. Excessive voltage and reverse polarity protection are provided by asymmetrical suppression diode D902.
Page 19 Description CM60 Series Service Manual +3.3VBDM Supply Output from U903, +3.3VBDM supplies 3.3V to the P25 digital module through connector J805. +3.3VBT Supply The +3.3VBT supply is generated from the +13.8V_SWITCHED supply using 3.3V linear regulator U800. This provides and independent supply for accessory modules connected to J806.
Page 20 Description CM60 Series Service Manual +8V Supply The +8V supply is generated from the +13.8V_SWITCHED power supply using the 8V linear regulator U901. It supplies power to the VCO via Q104. The +8V output is also switched to provide the +8VRX and +8VTX supplies.
Page 21 Description CM60 Series Service Manual +3.3VPLL Supply The +3.3VPLL supply is generated from the +8V supply using the 3.3V linear regulator U503. It provides a clean 3.3V supply to the following: PLL U501 • TCXO U502 • +3.3V R5 30 nf...
Page 22: Microprocessor
Description CM60 Series Service Manual Microprocessor The CPU is a dsPIC 16-bit combined CPU and DSP device. The 16MHz crystal XT801 is used to generate the CPU timing clock. Power is provided by the 3.3V switching regulator U903. The resistive divider R913, R914 is used to generate the power fail signal at pin 24. The CPU regularly reads this pin to ensure that the +13.8V supply is sufficiently maintained.
Page 24: Voltage Controlled Oscillator (Vco)
Description CM60 Series Service Manual Voltage Controlled Oscillator (VCO) The VCO is a conventional common collector stage based around Q101. The main tuning elements are the capacitor C109, inductor L103 and the microstrip inductor between L103 and ground. Frequency tuning is achieved by varactors (UHF: D103-106, VHF: D103-D108).
Page 25 Description CM60 Series Service Manual L 102 R1 02 15nH 100R C1 02 C1 04 Q103 2SC4 226 R1 04 R1 03 C1 05 100R 3K 3 R1 05 R1 06 R1 07 C1 06 C1 07 100R 100p C1 08...
Page 26: Antenna Switching
Description CM60 Series Service Manual Antenna Switching The antenna RX/TX switching is achieved using two switching diodes, D603 and D605. The low pass filter (LPF) that connects the antenna to this switch attenuates out-of-band signals and provides impedance matching between the TX output module U602 and the antenna.
Page 27: Receiver - Uhf
Description CM60 Series Service Manual Receiver - UHF RF Amplifier The incoming RF signal is, after passing through the antenna low pass filter (LPF), coupled to the notch filter C204, D201, L202. The centre of the notch filter is tuned using varactor D201 and shunts the first image of the receiver, (f –...
Page 28: First Mixer And If Section
Description CM60 Series Service Manual First Mixer and IF Section After the BPF, the signal passes to the first mixer stage. This mixer is a dual-gate MOSFET Q202. The RF signal is applied to gate 2 of Q202 and the VCO output is applied to gate 1.
Page 29: Receiver - Vhf
Description CM60 Series Service Manual FM Demodulator FM demodulation is performed by the IF IC U301. The 38.85MHz signal is coupled to the RF input of U301 where it is mixed with the 38.4MHz oscillator signal generated by XT301. This produces a second IF signal at 450kHz.
Page 30 Description CM60 Series Service Manual First Mixer and IF Section After the BPF, the signal passes to the first mixer stage. This mixer is a dual-gate MOSFET Q202. The RF signal is applied to gate 2 of Q202 and the VCO output is applied to gate 1.
Page 31: Audio Power Amplifier
Description CM60 Series Service Manual The ceramic discriminator CF302 then provides quadrature demodulation of the second IF signal and produces the demodulated FM audio at pin 9 of U301. CODEC The demodulated FM audio is then sampled by the sigma-delta ADC in the CODEC U402. The CODEC samples at 16ksps at 16-bit resolution and the digital samples are sent to the CPU over the CODEC I2S serial bus (CODEC pins 38-41).
Page 33: P25 Digital Module - Msm (Mini Signalling Module)
Description CM60 Series Service Manual P25 Digital Module - MSM (Mini Signalling Module) The P25 Digital Module is connected to the radio mainboard at J805. P25 Receiver When the radio receives a signal on a P25 channel the demodulated signal output from the IF IC U301 is routed to J805 by the CODEC U402.
Page 34: Connectivity
Description CM60 Series Service Manual Connectivity Front Panel Connector J802 provides connectivity between the radio base and the radio control interface. It carries the +13.8V supplies, microphone audio, volume control signals and UART RX/TX. The level converters U804 and U805 convert the CPU 3.3V UART interface to 5V for the front panel.
Page 35 Digital Module Socket Connector J805 is a socket used to connect a module that provides the radio added capability. This socket supports the GME P25 digital module. The connector carries the +3.3VBDM supply, 3.3V UART RX/TX, several reconfigurable I/Os, TX/RX audio and reset signals.
Page 36: Installation
Installation CM60 Series Service Manual Installation Overview The CM60 radio is supplied with a slide-on mounting bracket. The bracket is screwed or bolted in a convenient location in a vehicle using the mounting slots provided in the base. The CM60 radio has a built-in speaker and may be installed with the speaker facing upwards or downwards to ensure the receiver audio is projected clearly.
Page 37: Fitting The Radio
Installation CM60 Series Service Manual Fitting the Radio To mount the radio, slide the CM60 into the mounting bracket from the front until it clicks into place. Plug the power and antenna leads to the sockets at the rear of the radio.
Page 38: Dc Power Connection
Installation CM60 Series Service Manual DC Power Connection The CM60 radio is designed for 13.8V DC, negative earth installations only (i.e. where the negative terminal of the battery is connected to the chassis or frame of the vehicle). Two in-line 10A fuses are supplied. Connect fuses as close to the battery as possible. The radio’s positive (red) lead is connected via a 10A fuse directly to the battery’s positive terminal.
Page 39: Fitting And Removing The Controller Microphone
Installation CM60 Series Service Manual Figure 36 - Front Microphone Input To remove the microphone: 3. Squeeze the rubber strain relief near the front panel to disengage the slot. Slide the strain relief back along the microphone cord. 4. Squeeze the plastic tab on the microphone plug towards the plug to unlock it while gently pulling the plug outwards.
Page 40: Antenna
Installation CM60 Series Service Manual To remove the microphone, squeeze the plastic tab on the microphone plug towards the plug to unlock it while gently pulling the plug outwards. If the plug does not come out easily, the tab has not released correctly.
Page 41: Alignment
LS003 programming adapter (for the extended setup) • Windows computer with USB port running the CM60 Series Radio Programmer • The figures below shows examples of connecting the CM60 Series radio configurations to a computer and a radio communications test set. Power Radio...
Page 42 Alignment CM60 Series Service Manual Radio Power Remote Head Radio test set LS1-USB LS002 Figure 39 - Connecting the remote control head to the computer Power Radio Radio test set LS1-USB LS003 Figure 40 - Connecting the radio (in the extended setup) to the computer ©...
Page 43 1. Connect the CM60 radio to the computer USB port using the LS1-USB programming cable assembly. 2. Turn the radio on. Run CM60.exe to open the CM60 series radio programmer software. Figure 41 - GME CM60 Programmer Message 4. Click OK.
Page 44: Transmitter Center Frequency Alignment
Alignment CM60 Series Service Manual Transmitter Center Frequency Alignment To align transmitter center frequency: 1. Select the Frequency tab. 2. Set the radio to an analog channel. Or select an option from Alignment Frequency. 3. Set the service monitor to transmitter test mode.
Page 45: Receive Frequency Dc Offset Alignment
Alignment CM60 Series Service Manual Receive Frequency DC Offset Alignment To align receive frequency DC offset: 1. Select the Frequency tab. 2. Set the radio to an analog channel, or select Frequency from Alignment Frequency options. 3. Set the service monitor to Receiver Test mode.
Page 46: Transmitter Output Power Alignment
Alignment CM60 Series Service Manual Transmitter Output Power Alignment To align transmitter output power: 1. Select the Transmitter tab. 2. Select the 25W output in the Power Output section. 3. Select the frequency under the Alignment Frequency section. 4. Click the PTT button at the upper left of the screen to transmit.
Page 47: Transmitter Deviation/Modulation Alignment
Alignment CM60 Series Service Manual 10. Click the PTT button to transmit. Note: The Alignment Frequency and Power Output options will be disabled while in transmit mode. 11. Adjust the Power Adjust value for the chosen power level until the service monitor reads 10W.
Page 48 Alignment CM60 Series Service Manual 6. Repeat the process for the remaining alignment frequency points. Figure 46 - Transmitter Modulation Alignment © 2018 Standard Communications Pty Ltd. All rights reserved. 20 March 2018 49637-2...
Page 49: Receiver Front-End Band Pass Alignment - Uhf
Alignment CM60 Series Service Manual Receiver Front-End Band Pass Alignment - UHF To align receiver band pass filter alignment - UHF RSSI polling method: 1. Select the Receiver tab. 2. Set the radio to an analog channel, or select the frequency from the Alignment Frequency options.
Page 50 Alignment CM60 Series Service Manual To perform notch alignment: 1. Inject a modulated signal into the radio from the service monitor at the image frequency (which is 2 times the IF Frequency) at -30dBm. For the UHF model, the image frequency is 77.7MHz (2 times the IF Frequncy of 38.35 Mhz) below the alignment frequency (e.g.
Page 51: Receiver Band Pass Filter Alignment - Vhf
Alignment CM60 Series Service Manual Receiver Band Pass Filter Alignment - VHF To align receiver band pass filter - VHF RSSI polling method: 1. Select the Receiver tab. 2. Set the radio to an analog channel, or select the frequency from Alignment Frequency options.
Page 52 Alignment CM60 Series Service Manual To align receiver bandpass -12dB SINAD: 1. Connect -116dB signal source to the antenna, set the deviation ±1.5kHz and set the modulation feed to 1kHz. 2. Select a frequency from the Alignment Frequency with NB mode selected.
Page 53: Receiver S-Meter Alignment
Alignment CM60 Series Service Manual Receiver S-Meter Alignment To align the receiver S-meter: 1. Select the S-meter tab. 2. Select the second option in the Alignment Frequency section. 3. Inject a -121dBm signal into the radio from the service monitor at the alignment frequency.
Page 54: P25 Receiver Alignment
Alignment CM60 Series Service Manual P25 Receiver Alignment To align the P25 receiver: 1. Select the P25 Demod tab. Note: The radio must have the P25 conventional channel programmed before alignment can proceed. 2. Set the radio to a P25 conventional channel.
Page 55: Vco Control Voltage Check
Alignment CM60 Series Service Manual 6. Adjust the Rx Demod Scale value to minimize the Amplitude Error measurement. A reference starting point for Rx Demod Scale is 2200. Continue to adjust so that the amplitude error is reduced to zero or within +/-50Hz.
Page 56 Alignment CM60 Series Service Manual To check VCO control voltage for VHF: 1. Click Align to open the alignment screen. 2. Select the Transmitter tab. 3. Tune the radio to 144MHz. 4. Measure the VCO control voltage at the test point shown in Figure 70 on the component side of the radio main PCB.
Page 57: Parts List
Parts List CM60 Series Service Manual Parts List CM60 Radio Parts List Mechanical Part Number Description Circuit Reference 46A0439 Clamp - DC Lead Clip 730171 Connector - 20 Way HST SHD J801 Aux Socket SMD 730170 Connector - 40 Way Hirose DF12...
Page 58 Parts List CM60 Series Service Manual Electrical Part Number Description Circuit Reference MSMPCB Mini Signaling module 10A027 Filter - 450KHz C24 CF302 10A028 Filter - CFWM450E CF301 10A047 Filter - CFWM450IW CF303 77MAX3221 U803 77R2A20168 U806 UMD3N Q105 Q205 Q206 Q904 Q906...
Page 59 Parts List CM60 Series Service Manual Part Number Description Circuit Reference BC817W Transistor Q601 Q804 BC847W Transistor Q104 Q502 Q503 Q902 BC858CW Transistor Q501 PDTC114T Transistor Q401 Q402 Q801 Q805 Q807 Q907 TP103L Trim Pot 10K RV901 1SV276 Diode D501 D503...
Page 60: Uic600 Parts List
Parts List CM60 Series Service Manual UIC600 Parts list Mechanical Part Number Description Circuit Reference 46A1024 Bollard 46A1023 Bollard Contacts 46A1022 Bracket - PTT Side Button [2] 61A1757 Chassis 730114 Connector - 2 Pin Vertical SMD J401 730216 Connector - 2 Pin Vertical SMT...
Page 61 Parts List CM60 Series Service Manual Electrical Part Number Description Circuit Reference BC847BPN Transistor Q101 Q102 Q103 Q104 Q903 BC847W Transistor Q401 Q402 Q902 BC858CW Transistor Q801 NDS8434A Transistor Q901 10B063 Crystal 16MHz XT801 41B0294 Curly Cord BAS316 Diode D901...
Page 66: Block Diagrams
PCB Layouts CM60 Series Service Manual Block Diagrams CM60 UHF 25W J806 J807 CONTROL UN IT PROG COM0-COM3 DISPLAY FLASH SOCKET SEG0-SEG23 M5278L05 WL_SPI_MOSI +13.8V_SWITCHED WL_SPI_MISO WL_SPI_CLK WL_SPI_CS MCLR P25 M odule SCL1 SDA1 EEPROM 16MHz U805 BDM_RXD U104 MC74VHC1GT50...
Page 67: Cm60 Vhf 25W
PCB Layouts CM60 Series Service Manual CM60 VHF 25W J806 J807 CONTROL UN IT PROG COM0-COM3 DISPLAY FLASH SOCKET SEG0-SEG23 M5278L05 WL_SPI_MOSI +13.8V_SWITCHED WL_SPI_MISO WL_SPI_CLK WL_SPI_CS MCLR P25 M odule SCL1 SDA1 EEPROM 16MHz U805 BDM_RXD U104 MC74VHC1GT50 J802 J203...
Page 68: Circuit Diagrams
15pF 15pF KVL_ENB R817 BDM_TXD BDM_KVL_DATA DSPIC33EP512MU810 R116A UART1_RX KVL_DATA X800 C823 BDM_RXD TP936 C836 MCLR R116D CM60 Series PCB Version Control UART1_TX KFD_5V 100n RXD_toMSM_ C821 C807 100n C806 +3.3V R205 180R ----------------------------------------------------- UART2_RX DGND NF (C/R/L) TXD_fromMSM_ 100n...
Page 69: Cm60 Vhf 25W
J805 R886 RXD_toDSPIC R846 100R TP937 TP917 +3.3V CLKIN +3.3V BDM_KVL_ENB U803 MAX3232EIPWR CODEC_RESET R803 U801 KVL_ENB R817 CM60 Series PCB Version Control BDM_TXD BDM_KVL_DATA DSPIC33EP512MU810 UART1_RX KVL_DATA X800 ----------------------------------------------------- BDM_RXD TP936 C823 C836 MCLR R805 VCO_TX_RX UART1_TX KFD_5V There are seven resistors on the CM60 PCB used to...
Page 70 WHEREVER LIFE TAKES YOU, TAKE GME. 1300 463 463 gmeprofessional.com A division of Standard Communications Pty Ltd. Head Office: PO Box 96, Winston Hills, NSW 2153, Australia. New Zealand: PO Box 58446 Botany, Auckland, 2163, NZ. T: (09) 274 0955.

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