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PM790 Radio Maintenance Manual

All rights reserved. No spreading abroad without permission of Caltta.

39

6.8.3 Keypad Failure

Keypad

Failure

Is the 50pin FPC

in good contact?

Some

Yes

Re-assembly the

keypad sheet

Yes

Replace the

main PCB

All keys are

failed or some

failed?

All

No

Is the structural

sheet assembled

properly?

Re-plug the 50pin

FPC or replace it

No

Is keypad normal

after replacing it?

Replace the

keypad

No

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Summary of Contents for PM790

Page 1: ...1 PM790 Radio MAINTENANCE MANUAL Level1 V1 0...

Page 2: ......

Page 3: ...to Caltta Technologies Co Ltd Text contains proprietary information owned by Caltta Technologies Co Ltd without the written permission of Caltta Technologies Co Ltd any unit or individual shall not u...

Page 4: ...tion 9 3 Software Upgrade 10 3 1 Before Upgrade 10 3 2 Upgrade Procedure 10 3 3 CPS Software 17 4 Radio Disassemble Demonstration 27 4 1 Tools 27 4 2 Disassemble Steps 28 4 3 Assemble Steps 30 4 4 Com...

Page 5: ...36 6 7 GPS Failure 37 6 8 Control Panel Troubleshooting 37 6 8 1 LCD No Display 37 6 8 2 Bluetooth Failure 38 6 8 3 Keypad Failure 39 6 8 4 No Sound Speaker Failure 40 6 8 5 Remote Speaker Microphone...

Page 6: ...ew 1 1Appearance Note This picture is for reference only please refer to the actual product 1 2Standard Package SN Item Quantity PCS 1 PM790 Radio Unit 1 2 Keypad Microphone 1 3 Power Cable 1 4 Quick...

Page 7: ...R Adjacent Channel Selectivity 50 dB 12 5KHz 75 dB 25KHz TIA603D 60 dB 12 5KHz 70 dB 25KHz ETS Intermodulation 75 dB TIA603D 70 dB ETS Spurious Rejection 75 dB TIA603D 70 dB ETS Blocking or Desensitiz...

Page 8: ...o Distortion 3 Environmental Operating Temperature 30 60 Storage Temperature 40 85 ESD IEC 61000 4 2 level 4 8kV Contact 15kV Air Dust and Water Resistance IP54 Thermal and Humidity GJB 150 2009 and M...

Page 9: ...transmit and receive voice normally and the actual voice quality is good Keypad Microphone Note For other items that cannot be detected in steps 1 to 3 please refer to the radio user manual If a fault...

Page 10: ...Prepare the data cable Type AP200 Connect its USB port to your computer USB port connect the other side to your radio accessory interface port and fasten it AP200 Data Cable 3 2Upgrade Procedure 1 Ins...

Page 11: ...PM790 Radio Maintenance Manual All rights reserved No spreading abroad without permission of Caltta 11 4 Select I accept and click Next in the below interface...

Page 12: ...spreading abroad without permission of Caltta PM790 Radio Maintenance Manual 12 5 Select Complete and click Next if you use the default installation path Select Custom and click Next if you choose you...

Page 13: ...PM790 Radio Maintenance Manual All rights reserved No spreading abroad without permission of Caltta 13 Click Change to modify the installation path then click Next...

Page 14: ...served No spreading abroad without permission of Caltta PM790 Radio Maintenance Manual 14 6 Click Install to confirm installation 7 Wait the installation to complete Click Finish to end one click upgr...

Page 15: ...1 Connect the radio to the PC through the data cable 2 Double click the upgrade tools icon to run it 3 The radio enters into the flash burn mode turn the data cable switch to DL power on the radio the...

Page 16: ...Manual 16 corresponding USB port and click to upgrade 5 You can choose Chinese or English language and choose if preserve the current setting data when upgrade the radio 6 The LED indicator flashes g...

Page 17: ...ols will display as below Note Don t power off the radio during the upgrade If upgrade fails please repeat the upgrade procedure 8 Reboot the radio after upgrade to check if the firmware is the target...

Page 18: ...All rights reserved No spreading abroad without permission of Caltta PM790 Radio Maintenance Manual 18 3 Select I Accept and click Next...

Page 19: ...Manual All rights reserved No spreading abroad without permission of Caltta 19 4 Select Complete and click Next if you use the default installation path Select Custom and click Next if you choose you...

Page 20: ...All rights reserved No spreading abroad without permission of Caltta PM790 Radio Maintenance Manual 20 Click Change to modify the installation path then click Next...

Page 21: ...tenance Manual All rights reserved No spreading abroad without permission of Caltta 21 5 Click Install to confirm installation 6 Wait the installation to complete Click Finish to end CPS tools install...

Page 22: ...top after installation 2 CPS Read CPS read function can be started by shortcut key combination Ctrl R or shortcut icon to read data from the radio Precondition The radio is power on in user mode 1 Con...

Page 23: ...cess after about 10 seconds the radio goes back to home display The CPS will indicate read success as below 4 Click OK to complete CPS read 3 CPS Write CPS write function can be started by shortcut ke...

Page 24: ...Manual 24 mode 1 CPS software is used to configure data in template 2 Connect the radio with data cable and connect data cable USB port to the computer click CPS write to display the following interfa...

Page 25: ...790 Radio Maintenance Manual All rights reserved No spreading abroad without permission of Caltta 25 4 The radio automatically reboots after about 10 seconds The CPS will indicate write success as bel...

Page 26: ...All rights reserved No spreading abroad without permission of Caltta PM790 Radio Maintenance Manual 26 5 Click OK to complete CPS write...

Page 27: ...preading abroad without permission of Caltta 27 4 Radio Disassemble Demonstration 4 1Tools SN Item 1 Anti static Glove 2 Anti static Wrist Strap 3 Tweezers 4 Sockets 5 Screwdriver Cross Screwdriver Sl...

Page 28: ...power remove the power cable rotate the antenna and remove it 2 Dismount the control panel disconnect the FPC from the control panel 3 Remove the volume knob loosen the six fixing screws take out the...

Page 29: ...PM790 Radio Maintenance Manual All rights reserved No spreading abroad without permission of Caltta 29 5 Remove the seven fixing screws of the aluminum case top cover and take away the top cover...

Page 30: ...90 Radio Maintenance Manual 30 6 Remove the fixing nuts of GPS antenna interface and signal antenna interface remove the two screws of PA module remove the FPC and take out the main PCB 4 3Assemble St...

Page 31: ...Front Panel 1 28 PM790 Screw M2 0 8mm 2 5 PM790 Button 1 1 29 PM790 FPC 1 6 LCD Module 1 30 PM790 Front Cover Sealing Gasket 1 7 PM790 LCD Holder 1 31 PM790 Aluminum Case 1 8 PM790 Button 1 Dome 1 32...

Page 32: ...Interface Sealing Gasket 1 17 PH790 Knob Inner Holder 1 41 BNC Antenna Interface Nut M12 0 75mm 1 18 PH790 Switch Nut 1 42 PM790 BNC O Ring 1 19 PM790 Button 2 1 43 PM790 Main PCB 1 20 PM790 LCD Foam...

Page 33: ...ual All rights reserved No spreading abroad without permission of Caltta 33 5 Hardware Pictures 5 1Front of Main PCB SN Item 1 GPS Antenna Interface 2 DB26 Interface 3 Power Interface 4 Antenna Interf...

Page 34: ...6 1Structural Part Failure For the failure of radio structural parts please refer to 4 2 Disassemble Steps for replacement 6 2Baseband Circuits Troubleshooting Overview After the radio is powered on t...

Page 35: ...ton responds normally the radio transmission will be started after pressing the PTT button the call is normal The volume channel knob responds normally 6 3No Power On Current No power on current Is th...

Page 36: ...Replace the main PCB 6 5Power On Failure and Current Below 1A Power on failure and current is below 1A Can the radio display the logo screen Yes Re install the correct firmware No Replace the main PC...

Page 37: ...antenna No Replace the main PCB Is the work area blocked from receiving GPS signal Is GPS normal after changing to open area Yes No 6 8Control Panel Troubleshooting 6 8 1 LCD No Display LCD No Displa...

Page 38: ...ntenance Manual 38 6 8 2 Bluetooth Failure Bluetooth Failure Is the Bluetooth antenna connected normally No Yes Replace the main PCB Is the Bluetooth normal after re burning software Yes End No Re con...

Page 39: ...Keypad Failure Keypad Failure Is the 50pin FPC in good contact Some Yes Re assembly the keypad sheet Yes Replace the main PCB All keys are failed or some failed All No Is the structural sheet assembl...

Page 40: ...r Failure No Sound Speaker Failure Is the accessory interface icon displayed normally Yes No End Is it normal after replacing the speaker Yes End No Remove accessory Clean DB26 interface Is it normal...

Page 41: ...er replacing remote speaker microphone Yes End No Replace the main PCB Does the problem occur when plugging remote speaker microphone Yes No Check whether the FPC is normal 6 9No Voice Failure No Voic...

Page 42: ...e 7 1 Check Latest Firmware Version and Device Information Please refer to 2 2 Check Firmware Version and Device Information 7 2 Function Check After the radio maintenance check if every function is a...

Page 43: ...normal and the key can respond normally to touch 5 Connect the data cable to check if the radio can CPS read and write normally 6 Turn coding knob to adjust radio frequency and set work mode to the sa...

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