Kirisun DM588 User manual

DM588
V191225 ShenZhen Kirisun Communications Co.,Ltd.
Professional wireless communication system solution supplier
SERVICE MANUAL

DM588 Service Manual
Contents
1.Overview ............................................................................................................................................1
1.1. Range of Application....................................................................................................................1
1.2. Safety Precaution ........................................................................................................................1
1.3. Maintenance Service...................................................................................................................1
2.External View and Keys....................................................................................................................2
2.1. External View...............................................................................................................................2
2.2. LED Indicator...............................................................................................................................2
3.Basic Operation............................................................................................................................................. 3
3.1. Powering On/Off ..........................................................................................................................3
3.2. Selecting a Channel.....................................................................................................................3
3.3. Adjusting Volume.........................................................................................................................3
3.4. Initiating a Call .............................................................................................................................3
3.5. Receiving a Call...........................................................................................................................3
3.6. Calling Back.................................................................................................................................3
4.Circuit Description........................................................................................................................................ 4
4.1. Schematic Circuit Diagram of Main Board .................................................................................. 4
4.2. Tx Circuit......................................................................................................................................4
4.3. Rx Circuit .....................................................................................................................................5
4.4. Frequency Synthesis Circuit........................................................................................................6
4.5. Power Supply Circuit ...................................................................................................................6
4.6. Others .......................................................................................................................................... 7
4.7. Port Description of Master Chip LT1901 .....................................................................................7
4.8. Control Panel...............................................................................................................................9
5.Feature Description and Parameter Settings.......................................................................................10
5.1. Stun, Revive and Remote Monitor.............................................................................................10
5.2. Scan...........................................................................................................................................10
5.3. Zones..........................................................................................................................................11
5.4. Preference Settings....................................................................................................................11
5.5. TOT (Time-Out-Timer) ...............................................................................................................12
5.6. EmergencyAlarm ......................................................................................................................12
5.7. Parameter Settings....................................................................................................................13
5.8. Upgrading Software...................................................................................................................13
6.Assembly and Disassembly......................................................................................................................14
6.1. Separating RF Unit and Control Panel......................................................................................14
6.2. Disassembling Main Unit...........................................................................................................15
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DM588 Service Manual
6.3. Disassembling Front Part ..........................................................................................................16
6.4. Explosion Diagram.....................................................................................................................17
7.Debugging.....................................................................................................................................................18
7.1. Debugging Devices....................................................................................................................18
7.2. Debugging..................................................................................................................................19
8.General Specifications...............................................................................................................................37
9.Devices for Maintenance and Test..........................................................................................................38
10.Troubleshooting .........................................................................................................................................38
Appendix 1 Abbreviations.............................................................................................................................40
Appendix 2 Material List (Electronic Part) ................................................................................................41
Table 1 Material List of Main Board DM588-01 (136MHz-174MHz).................................................... 41
Table 2 Material List of Main Board DM588-02 (400MHz-470MHz).................................................... 58
Table 3 Material List of Main Board DM588-08 (400MHz-480MHz).................................................... 73
Table 4 Material List of DM588 LCD Board..........................................................................................90
Table 5 Material List of DM588 Key Board...........................................................................................92
Appendix 3 Material List (Structural Part).................................................................................................93
Appendix 4 Schematic Diagrams and Layout Drawings.......................................................................97
Figure 1 Schematic Diagrams of Main Board DM588-01 (136MHz-174MHz).....................................97
Figure 2 Schematic Diagrams of Main Board DM588-02 (400MHz-470MHz)....................................111
Figure 3 Schematic Diagrams of Main Board DM588-08 (400MHz-480MHz)...................................125
Figure 4 Top-Layer Layout Drawing of Main Board(B Board)............................................................139
Figure 5 Bottom-Layer Layout Drawing of Main Board(B Board)......................................................140
Figure 6 Top-Layer Layout Drawing of Main Board(D Board)............................................................141
Figure 7 Bottom-Layer Layout Drawing of Main Board(D Board)......................................................142
Figure 8 Schematic Diagram of LCD Board.......................................................................................143
Figure 9 Top-Layer Layout Drawing of LCD Board............................................................................144
Figure 10 Bottom-Layer Layout Drawing of LCD Board ....................................................................145
Figure 11 Schematic Diagram of Key Board......................................................................................146
Figure 12 Top-Layer Layout Drawing of Key Board...........................................................................147
Figure 13 Bottom-Layer Layout Drawing of Key Board .....................................................................148
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DM588 Service Manual
1.Overview
1.1.Range of Application
This manual is intended for the maintenance of the DM588 digital mobile radio and for use by the
engineers and professional technicians, who have received training from Kirisun. The information in
this manual might change with technology improvement. To obtain the latest information, please
contact Kirisun or your local dealer.
Please read this manual carefully before repairing the radio.
1.2.Safety Precaution
Electromagnetic Radiation
A two-way radio generates and radiates electromagnetic energy. Kirisun two-way radios strictly
conform to Chinese and international standards of electromagnetic radiation. To ensure ideal
communication and human safety, please keep the device vertical to the ground and keep the
microphone 2 ~ 5cm away from the mouth while using the radio.
Electromagnetic Interference
To avoid electromagnetic interference, turn off the radio in a place where you are so instructed, for
example, a hospital, a health center and an airport.
Explosive Gas
You’d better shut down the radio when you are in an area with explosive gas (for example, the lower
deck of a hull, a container or transport facility of fuel oil or chemicals) or with chemical or particles,
dust or metallic dusts in the air, or near a blast area or an electric blasting detonator. Replacing or
recharging the battery in potentially explosive atmospheres is prohibited.
Broken Antenna
You are suggested not to use the radio if the antenna is damaged. A damaged antenna may cause
mild burns when contacted with human skin.
Part Replacement
Pay attention to the model while replacing a part. Do not use a component not meeting the
requirements of Kirisun.
1.3.Maintenance Service
Warranty service is provided to the main unit and accessories, except for any of the following
situations.
Absence of a valid warranty card or an original invoice
Malfunction due to unpermitted disassembly, repair or modification
Damage of the product due to wear, mechanical damage, burn or inlet of water
Damaged product SN. or unidentifiable brand
Paid maintenance service will be provided after the warranty period. Meanwhile, we offer parts to
authorized maintenance stations and dealers at preferential prices, except those of discontinued
products).
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DM588 Service Manual
2.External View and Keys
2.1.External View
SN Part Name SN Part Name
1 LED Indicator 2 Speaker
3 Menu/OK Key 4 Up/Down/Left/Right Key
5 Programmable Keys (P1~P3) 6 Hand Micro (and Programming Cable)
Interface
7 EmergencyAlarm Key 8 LCD Screen
9 On/Off Key 10 Back Key
11 Volume/Channel Knob 12 RFANT Interface
13 External Speaker Interface 14 3G/4G ANT Interface (Optional)
15 GPS ANT Interface (Optional) 16 Bluetooth ANT Interface (Optional)
17 Power Interface 18 PTT Key
19
Microphone
2.2.LED Indicator
Indicator State
Radio State
Red light on Transmitting signals
Green light on Receiving signals
Green Light Flashing
Scanning channels
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DM588 Service Manual
Orange Light Flashing
In call hold state under digital mode, and exit when hold time out
Red Light Flashing Fast CPS reading radio parameters
Green Light Flashing Fast CPS programming radio parameters
3.Basic Operation
3.1.Powering On/Off
To power on the radio, hold down the On/Off key until the LCD screen is on.
To power off the radio, hold down the On/Off key until the LCD screen is off.
3.2.Selecting a Channel
In standby state, press the Volume/Channel knob to display an interface, and then rotate the knob or
press the Up/Down key to select a channel.
3.3.Adjusting Volume
When the radio is on, rotate the Power/Volume knob clockwise to increase the volume or
counterclockwise to decrease it.
3.4.Initiating a Call
If the selected channel is digital, you can call the default contact for the selected channel by pressing
the PTT key. This contact can be set by the dealer through programming.
3.5.Receiving a Call
When the radio receives RF signals on the selected channel and the squelch level is reached, the
green LED glows to indicate that carrier is received.
When the selected channel is digital channel and when it received individual call, group call or all call,
the radio will output the voice from the channel.
When the channel is analogue channel and when it received analogue signals with CTCSS matching
the one on this channel (or there is no CTCSS set on the channel), the radio will output voice form
the channel.
3.6.Calling Back
When the selected channel is digital channel and after a call is received, press the PTT button within
the calling duration to call back. If the calling duration is up, you need to initiate a call. The calling
duration can be set by the dealer.
When the selected channel is analogue channel and after a call is received, press the PTT button
and speak to the microphone to call back.
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DM588 Service Manual
4.Circuit Description
4.1.Schematic Circuit Diagram of Main Board
4.2.Tx Circuit
The TX circuit includes an RF power amplification circuit, a low pass filter circuit and an automatic
power control circuit.
RF Power Amplification Circuit
Transmitting signals TX VCO are buffered and amplified by the Q7, Q8, Q9 and then the pre-drive
amplifier Q18 to generate strong enough driving power signals, and then amplified by the last-stage
amplifier Q29. Then, impedance matching is finished at the output end of the last-stage amplifier
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DM588 Service Manual
using a microstrip to reduce loss of output power caused by impedance mismatching. Then,
transmitting signals go through the TX/RX switch (composed of the D14, D15, D16 and D17) and
enter the low-pass filter (LPF).
Low-Pass Filter (LPF) Circuit
The low-pass filter for inhibiting harmonic wave is a high-order Chebyshev filter composed of a
lumped parameter inductance and a capacitance. Under certain in-band fluctuation performance, the
filter enhances inhibition of out-of-band harmonic wave and spurious signals. Transmitting signals
after wave filtering is radiated through the antenna.
Automatic Power Control Circuit (APC) (Included)
For transmitting signals, a power-oriented coupler composed of a microstrip, an inductance and a
capacitance detects forward and reverse power, and detects and samples waves through detector
diodes (the D30 and D201). The output voltage is compared first with the voltage (the IC13-A) and
then with the preset standard voltage (the IC13-B) to get a voltage, which is used to adjusts the grid
voltage of the pre-drive amplifier Q18 and the last-stage amplifier Q29 to detect standing wave and
control power. Meanwhile, the RF power amplification circuit is protected through controlling theAPC
voltage.
4.3.Rx Circuit
The Rx circuit is composed of an RF circuit, an MF circuit and MF signal processing, which are
described as below.
RF Circuit
Signals from the antenna are filtered through a low-pass filter circuit, transmitted through the RX/TX
switch (the D14, D15, D16 and D17) to a tunable band-pass filter for filtering, amplified by the
low-noise amplifier Q12, filtered again by a tunable band-pass filter, and then mixed with the first
local oscillator signals in a mixer to get the first MF signals at a frequency of 49.95MHz.
MF Circuit and MF Signal Processing
The first MF signals are filtered by the crystal filter Z2, amplified by the amplifiers Q13 and Q14, and
then mixed again and processed by the MF decoding chip Q17 to get noise signals, signal strength
and audio signals, which are processed by the DSP in the master chip LT1901.
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DM588 Service Manual
4.4.Frequency Synthesis Circuit
The frequency synthesis circuit is composed of the phase-locked loop (PLL) chip LMX2571, a loop
filter (LPF), a voltage-controlled oscillator (VCO) and a feedback network. To the LMX2571, a work
clock is provided by the active resonator U9 and configuration data is provided by the master chip
LT1901. The LPF consists of a 4-stage resistor-capacitor (RC) filter circuit. The TX VCO and the RX
VCO respectively includes a varicap, an inductor, a capacitor and a transistor. The feedback network
consists of an inductor and a capacitor. After frequency synthesis, the TXLO signals and RXLO
signals are generated and sent respectively to the transmitting circuit and the receiving mixing circuit.
The modulated signals MODE1 and MODE2 are modulated respectively by the active resonator U9
and the TX VCO.
4.5.Power Supply Circuit
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DM588 Service Manual
The radio is powered by a car battery, and the baseband circuit and the RF circuit are powered
independently. A protection unit at the front end of the power supply detects overvoltage and
overcurrent to ensure safety.
To the baseband circuit, the MP2359 DC-DC convertor outputs a voltage of 4.2V to power the master
chip LT1901 and the PMU in the Bluetooth chip, and the PMU of the LT1901 outputs 3M, AVDD_2V8,
USB3.3V, D1V8 and D1V2A to power other parts.
The radio is powered on or off through control over the inhibit pin of a DC/DC convertor.
For startup, the On/Off key is held down, the POWER_KEY is at a low logic level, the DC/DC circuit is
put through via a logic conversion circuit, the system is powered on and initialized, and the
POWER_HOLD is set to a high level to keep the DC/DC convertor enabled until startup is finished.
For poweroff, the system detects that the On/Off key is held down, executes the poweroff process,
and finally sets the POWER_HOLD to a high level to cut off the DC/DC circuit.
4.6.Others
Bluetooth and GPS are provided as required in orders.
4.7.Port Description of Master Chip LT1901
Pin NO.
Port NO.
Network Name
Description
A11 GPIO_D46 5SC Power switch of phase-locked loop (on at
high level)
B13
GPIO_D47
5RC
Receiving power switch (on at high level)
E13 GPIO_D48 5TC Transmitting power switch (on at high level)
E12 GPIO_D50 TXENABLE Enable transmitting power amplification
(valid at high level)
F15
GPIO_D8
POWERKEY_DET
Power key detection
F14
GPIO_D9
POWER_HOLD
Hold power for soft startup
AB16
GPIO_D104
GPSENABLE
Enable GPS receiving (valid at high level)
H18
RXD1
RXD1
Output GPS/4G module data
J18 TXD1 TXD1 Input GPS/4G module data
T18 GPIO_D109 GPS/4G_SELECT Select GPS/4G module
J14 RXD0 RXD0 Output BT chip data
J15 TXD0 TXD0 Input BT chip data
F9 GPIO_D54 TXRX Select TX/RX VCO
B10 GPIO_D56 SPI_DATA SPI data (phase-locked loop, IF chip, DAC)
B11 GPIO_D57 SPI_CLK SPI clock (phase-
locked loop, IF chip,
DAC)
C11 GPIO_D55 72310_LD Phase-locked loop lock detection
A10 GPIO_D58 SPI_72310_CS Chip select of phase-locked loop
C14
GPIO_D51
2365_PDN
Power saving mode of IF chip
E14
GPIO_D49
2365_RSTN
Reset IF chip
C12
GPIO_D53
SPI_2365_CS
Chip select of IF chip
C13
GPIO_D52
SPI_DAC_CS
Chip select of DAC
T19 GPIO_D14 PTT PTT key input
F10 GPIO_D0 HOCK Hand microphone hook
E10 GPIO_D3 CM 1-wire bus / external hand microphone key
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Pin NO.
Port NO.
Network Name
Description
C7 GPIO_D17 RED_LED Enable red indicator
A8 GPIO_D18 GREEN_LED Enable green indicator
AA18
GPIO_D22
SWITCH_A
Channel encoding switch
AB17
GPIO_D23
SWITCH_B
Channel encoding switch
AA17
GPIO_D24
ENTER
Channel encoding switch
AA15
GPIO_D30/D93
PASELECT
Switch to internal/external speaker
AC16
GPIO_D110
MUTE
Speaker mute
AC21 LCD_D0 LCD_D0 Data 0 of parallel interfaced LCD
AC20 LCD_D1 LCD_D1 Data 1 of parallel interfaced LCD
W22 LCD_D2 LCD_D2 Data 2 of parallel interfaced LCD
AA22 LCD_D3 LCD_D3 Data 3 of parallel interfaced LCD
AC22 LCD_D4 LCD_D4 Data 4 of parallel interfaced LCD
AB23 LCD_D5 LCD_D5 Data 5 of parallel interfaced LCD
Y22
LCD_D6
LCD_D6
Data 6 of parallel interfaced LCD
AC23
LCD_D7
LCD_D7
Data 7 of parallel interfaced LCD
AB22
LCD_RD
LCD_RD
Allow LCD operation
AB20 LCD_WR LCD_WR LCD write/read control
AB21 LCD_CS LCD_CS Chip select of LCD
AB19 GPIO_D15 LCD_RST Reset LCD
V14 LCD_RS LCD_RS LCD command data
C9 GPIO_D105 LCD_BL LCD backlight
W14 GPIO_D101 E2_WP E2 write protection
C17
I2C_SCL
I2C_SCL
I2C clock (E2,ADC)/ add external CODEC
C18
I2C_DATA
I2C_DATA
I2C data (E3, ADC)/ add external CODEC
AC15
GPIO_D92
ADC_RDY
ADC ready
F6
GPIO_D111
BT_ENABLE
Bluetooth module power switch
F5 GPIO_D112 BT_RST Reset Bluetooth module
V19 GPIO_D96 KB_C0 Keyboard
T21 GPIO_D97 KB_C1 Keyboard
U18 GPIO_D98 KB_C2 Keyboard
V16 GPIO_D99 KB_C3 Keyboard
V22 GPIO_D10 KC_R0 Keyboard
V15
GPIO_D11
KC_R1
Keyboard
U21
GPIO_D12
KC_R2
Keyboard
U19
GPIO_D13
KC_R3
Keyboard
V17
GPIO_D100
KEYPAD_BL
Keyboard backlight
H5
USB_DM
USB_DM
USB port
J5 USB_DP USB_DP USB port
L1 HPL_OUT MODE1 Crystal modulation out
M1 HPR_OUT MODE2 VCO modulation out
IC22 VOUTB APC Tx power control
IC22 VOUTA RXTV Receiving band-pass control
E2 HP_MICN AFADC Demodulated signal in
J19/IC2.
AIN1 BSENS SQL Signal quality detection
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DM588 Service Manual
Pin NO.
Port NO.
Network Name
Description
L22/IC2.
AIN2
ADCIN RSSI Field intensity detection
IC2.AIN3 TEMPERATUR
E TEMPERATURE Temperature detection
IC2.AIN0
BATDET
BATDET
Battery voltage detection
P6---F17 PRST---RSTO
UTB PRST
F16---E1
5
OSCEN--PMU_
OSCEN OSCEN
E11 GPIO_D44 SECRET_RST Reset encryption chip
K18 CLKOUT2/GPI
O_D107
SECRET_CLK Clock of encryption chip
B12 GPIO_D45 SECRET_DATA Encryption chip data
E17 PWMOUT PWMOUT NO USE
A9 GPIO_D59 APCSW1 NO USE
C8 GPIO_D43 APCSW2 NO USE
M21 GPIO_D27 DS18B20 Temperature sensor 1-wire bus
B8 GPIO_D16 LPG
F13
GPIO_D1
WAKE_IN
A7
GPIO_D19
WAKE_HOST
B9
GPIO_D21
REST_4G
B7
GPIO_D20
AUDIOSELECT
V13 GPIO_D102 ENABLE_4G
F11 GPIO2 POWER_4G
4.8.Control Panel
The control panel achieves human-machine interaction, including display, key scan, volume control,
state indication and communication with accessories.
Accessory Interfaces
Pin
Signal Name
Function
Signal Definition
1 USB_DM USB- USB Data
(2V<VIH<3.3V, 0V<VIL<0.8V)
2
MIC+
MIC+
Analogue Input (VIN<2.0V)
3 MIC- MIC- Analogue Input (VIN<2.0V)
4 USB_DP USB+ USB Data
(2V<VIH<3.3V, 0V<VIL<0.8V)
5 HOOK
Mic Hook
Indication Digital Input
(2V<VIH<3.3V, 0V<VIL<0.8V)
6 CM
Mic Keypad Data
Line
7 PTT PPT Key
8 BL-MIC
Mic Keypad
Digital Output (VOH>2.8V, VOL<0.4V)
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DM588 Service Manual
Backlight Control
9 VCC USB+ Power Output (7~12V)
10 GND Ground Power Ground
Power Supply
The main board provides two routes of power supply for the control panel: one is DC3.3V for the key
scan module and LCD module, and the other is DC13.2V for the hand microphone, LED screen and
backlight lamp.
Keys
The radio has 12 keys: programmable keys (components P4, P7 and P10), direction keys
(components S3, S5, S6 and S9), menu key (component S8), On/Off key (component S11),
Emergency Alarm key (component S1) and volume/channel knob (component S13). The information
of all the keys is sent to the master chip LT1901 that executes operation accordingly.
LED States and Backlight
The LED indicator acts according to the data from the maser chip LT1901. Green light is on when
traffic is received, red light is on when traffic is sent, and the backlight lamp is on when any key is
pressed.
Volume Control
Volume is controlled through an encoder switch. A GPIO signal is sent to the master chip LT1901 to
achieve volume adjustment. A pullup resistor is added to the signal line to increase voltage by 3.3V.
The phase of two input band codes determines the change of volume in direction, while the amount
of pulses determines the variation of volume.
5.Feature Description and Parameter
Settings
5.1.Stun, Revive and Remote Monitor
Stun
When this function is enabled, the radio can be stunned after receiving a Stun command. A stunned
radio can only receive a Revive command but cannot send or receive other signals.
Revive
When this function is enabled, a stunned radio can be revived after receiving a Revive command.
After the radio is revived, it can operate normally again.
Remote Monitor
When this function is enabled, the radio automatically transmits after receiving a Remote Monitor
command, so that the monitoring party can hear the sounds around the radio.
5.2.Scan
Enabling Scan
Press the Scan programmable key to enable Scan and listen to the traffic on other channels. You can
press the Scan key again to exit Scan.
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DM588 Service Manual
Scan List
Each channel can be related to one scan list though programming by your dealer. The radio can scan
only on a channel related to a scan list. Each scan list contains up to 16 channels (including the
current channel), including analogue and digital channels.
Under the Scan List menu item, you can check the scan channels under a scan list used by the
current channel, or add a channel to the list.
Note:
If you change a scan channel in the list, you change the scan channels for another channel
related to this list.
Nuisance (Temporary) Delete
During scan, if the radio dwells on an unnecessary channel, e.g. interference channel, you may
select Nuisance Delete to delete this channel before continuing the scan. You may also add a
temporary channel during scan.
Note:
After exiting scan mode, a temporary channel added or deleted will be invalid.
Scanning Revert Channel
During radio scan, press the PTT key to enable the radio to transmit or talk on a preset channel. This
channel is set by your local dealer using the customer programming software.
Prior Scan
If a priority channel is set in a scan list, the channel will be scanned in cycle, i.e. scanning the channel
once after each common channel. For example, if a scan list has channels 1, 2, 3 and 4 with channel
2 as a prior channel, the scan order will be 1 2 3 2 4 2 1.
5.3.Zones
A zone is a group of available traffic channels. You may select a zone by pressing a side key.
5.4.Preference Settings
You can set the parameters of the radio so that it meets your need, including power, squelch level,
alert tones, sleep mode, CPS password and speech encryption. Setting items may vary for different
dealers.
Power
When the radio operates under high power, communication distance is longer but battery life is
shorter. You can set a power level for each channel.
Squelch Level
You can set a squelch level (ranging from 0 to 9) for the radio. The higher the squelch level is, the
less noise or interference there will be but the harder to receive weak signals, and vice versa.
Alert Tone
You can enable or disable various alert tones via the PC Tool.
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DM588 Service Manual
Microphone Gain
Microphone gain is the value based on which an audio level is amplified. You can adjust volume by
setting a microphone gain. The higher the gain is, the higher the volume will be.
Note:
A too high gain might result in speech distortion.
CPS Password
You can set a password for the customer programming software (CPS).
Speech Encryption
You can enable/disable speech encryption for the current channel to send speech after encryption.
5.5.TOT (Time-Out-Timer)
This function is to prevent overlong channel occupation. If the radio transmits for a period longer than
the one set by a dealer through the CPS, transmission will stop and a warning tone will ring. To stop
the tone, release the PTT key. After that, you can transmit again after a period (set by a dealer) by
holding down the PTT key.
Note:
If pre-warning is enabled by your dealer, you will receive an early warning of transmission
termination when the set TOT is nearly out.
5.6.Emergency Alarm
Under emergency, you can send an emergency alarm by pressing the programmed Emergency
Alarm key. Please specify audio-video effect by setting an alarm type and the content to send to other
radios in the group by setting an alarm mode.
You can have these settings done by a local dealer through programming. To quit emergency alarm,
press the programmed Quit Emergency Alarm key.
Alarm Types
1) Disabled: Alarm function disabled (by default). When the Emergency Alarm key is pressed, no
alarm will be sent.
2) Siren Only: When the Emergency Alarm key is pressed, a siren will ring locally.
3) Regular: When the Emergency Alarm key is pressed, there will be an audio-video alert and the
radio can receive a reply from another member in the group.
4) Silent: When the EmergencyAlarm key is pressed, there will be no audio-video alert and the radio
cannot receive a reply from another member in the group.
5) Silent with voice: When the EmergencyAlarm key is pressed, there will be no audio-video alert but
the radio can receive a reply from another member in the group.
Alarm Modes
1)Alarm: The radio sends an emergency alarm and then quits alarm mode.
2) Alarm with call: The radio sends an emergency alarm, and an emergency call can be initiated by
pressing the PTT key.
3)Alarm with voice to follow: The radio sends an emergency alarm, and then sends background tone
periodically.
Note:
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DM588 Service Manual
Emergency alarm: A non-speech signal sent from one radio to others in the group to trigger an
alarm alert on these radios.
Alarm call: A call of a higher call priority than a common call is, which guarantees communication
under emergency.
5.7.Parameter Settings
The radio has been set before delivery. However, to meet customer requirements, it may be
necessary to set its functions. This can be achieved through the customer programming software
(CPS) CPSm Vx.xx.
To set the parameters of the radio using the CPS, take the following steps.
1. Install the programming software on your PC.
2. Connect the radio to the PC using the programming cable.
Note:
Make sure the radio is powered on.
3. Run the CPS.
4. After successful connection, [USB OK] will be displayed in the title bar, and a USB connection
symbol will be displayed in the upper right corner of the screen of the radio.
5. In the software interface, select Program Read Data. In the prompted dialog box, click Read.
The radio parameters will be read.
6. In the software interface, modify parameters, select Program Write Data. In the prompted dialog
box, click Write. The radio parameters will be written.
5.8.Upgrading Software
The software of the radio might be up upgraded from time to time with function development. To
upgrade the software, take the following steps.
1. Power off the radio. Connect the radio to the PC using the programming cable.
2. Power on the radio by holding down the On/Off and P1 keys and the Volume/Channel knob
simultaneously, the radio will enter upgrade mode, red light will flash, and the startup logo will be
displayed on the screen.
3. Run DP58x_Update.exe.
After successful connection, [USB OK] and the information of the BootLoader and MCU program will
be displayed.
4. Click Upgrade MCU.
Note:
During upgrade, do not power off the radio or disconnect the programming cable.
5.After upgrade, the radio will restart automatically.
PC Programming Cable Radio
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DM588 Service Manual
6.Assembly and Disassembly
This radio is sophisticated with small and precise mechanical structures. Please be careful while
assembling or disassembling the radio.
6.1.Separating RF Unit and Control Panel
To separate the RF part and the control panel, take the following steps.
1. Screw down the eight M3*16 torx round-head machine screws on the bottom aluminium-alloy
housing fastening the top aluminium-alloy housing, and remove the top aluminium-alloy housing
together with the waterproofing ring of the RF unit.
2. Screw down the two M2.5*5 mushroom-head torx machine screws fastening the front housing and
the aluminium-alloy holder.
3. Separate the RF unit and the front part of the radio, remove the FPC connecting the RF board and
the control panel, remove the speaker cable, and then separate the RF unit and the front part.
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DM588 Service Manual
6.2.Disassembling Main Unit
To disassemble the main unit, take the following steps.
1. Screw down the eight M3*6 cross recessed mushroom-head machine screws fastening the main
board, unweld antenna connector using a soldering iron, and unplug the GPS and Bluetooth cable
connectors.
2. Lift the front part of the main board, and take out the board forwards up.
Note:
To ensure that the tube power amplifier is at the accurate position while assembling or
disassembling the board, install the screws fastening the board and the amplifier before welding
the amplifier. (If the amplifier might melt because of heat when the board is disassembled, remove
the amplifier first.)
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DM588 Service Manual
6.3.Disassembling Front Part
To disassemble the front part of the radio, take the following steps.
1. Remove the Volume/Channel knob and knob circlip, and screw down the M6*0.35 switch nut.
2. Screw down the five ST2*5 torx machine screws fastening the front and rear housings.
3. Unplug the LCD screen cable.
4. Take out the PCB from the front housing.
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DM588 Service Manual
6.4.Explosion Diagram
SN
Material Code
Specifications
QTY
1 7MBP-4025-04A-W0 Hand microphone interface cover, TPU, black,
etched 1
2 7MBP-4304-08C-WC M50 glass, PMMA(raw acrylic material), transparent 1
3
7GCM-603810-01A-W
R 8000 anti-shake sponge mat
1
4
7MBR-4304-05A-W0A
Rubber plug for M50_SIM card
1
5
7MBP-4291-01B-W0
DM588 plastic front housing
1
6
7MBR-4304-03A-WC
M50 light pipe
1
7
4PC7-4099B-A
LCD screen
1
8 7MBR-4291-01A-W3 Waterproofing cover ring of DM588 hand
microphone connector 1
9
7MBS-4304-02A-W
M50_LCD screen holder
1
10
3CC3-16MB-Y10J
KME231 aerial-plug socket
1
11 6SS2-4291-HFB DM588 LCD board nesting 1
12 3WF7-05050-070D4 FPC cable 1
13 7MBL-4291-02A-LA DM588 top aluminium-alloy housing 1
14 7MBR-4291-07A-W0 DM588 waterproof conductive silicon-rubber ring 1
15 Main board PCB 1
16 3CP3-LCP200 DM850 power socket 1
17
7MBR-4291-04A-W0
DM588 waterproof cover for speaker socket
4
18 7SAF-030080M-SZYB-Z1
R M3*8 cross recessed mushroom-head combined
machine screw 1
19 3CR7-S4025-A2 DM890 GPS antenna connector 3
20 7NRC-063095021-G STM-U_GPS antenna connector nut 3
21 7SAF-030080M-SZYB-Z1
R M3*8 cross recessed mushroom-head combined
machine screw 2
22 3CR7-S1943-D PT8200 antenna connector 1
23 7MBL-4291-01A-LA DM588 bottom aluminium-alloy housing 1
24 7SMF-030160M-MHYB M3*16 torx round-head machine screw 8
17