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Workabout MX

Service Manual

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Summary of Contents for Workabout MX

Page 1: ...Workabout MX Service Manual...

Page 2: ......

Page 3: ...r retrieval without the express written permission of Psion Industrial PLC is prohibited Reverse engineering is also prohibited The information in this document is subject to change without notice Psi...

Page 4: ...g device pursuant to part 15 of the FCC Rules These are designed to provide reasonable protection against harmful interference in a residential installation This equipment can radiate radio frequency...

Page 5: ...edure 13 Dismantling the Chassis Assembly 14 Dismantling the Drawer Assembly 16 Selecting the PCB Type 17 Re assembly Instructions 18 Re assembling the Drawer Assembly 18 Notes on Drawer Re assembly 1...

Page 6: ......

Page 7: ...ntial to service a Workabout it is recommended and is described in the Final Test section on page 26 The Final Test Unit Psion part no 1828 0100 01 is used within Psion during the manufacturing proces...

Page 8: ...d week it was manufactured The serial number can therefore be used to determine whether a Workabout is still within its warranty period The serial number is located on a label on the Drawer Assembly I...

Page 9: ...MX variants that are expected to be shipping within a few months of product launch Further codes will be released along with new variants Code Option ports fitted Top option ports Bottom option port...

Page 10: ...ow Dismantling the Workabout to remove and replace Main PCB Return faulty PCB to Psion Workabout has problems reading SSDs 1 Warped Connector Block Arm 2 Main FFC faulty 3 Door switch on Main PCB dama...

Page 11: ...amaged 3 Mechanical interference 4 Drawer Spring missing 1 Refit Drawer 2 Replace outer case or Drawer Assembly 3 Remove case from machine Check for obstructions and interference caused by misplaced i...

Page 12: ...xploded View General Assembly The following illustration shows the general assembly dismantled into replaceable subassemblies and components Note that the numbered circles in the illustration correspo...

Page 13: ...ATCH 1 4 A6224000301 LBL MX 2MB MEMORY 1 5 A8704001802 BOTTOM SEAL 1 6 A1804100801 MLDG D TYPE BLANK 1 A8124000601 MX BTM FLEXI IRDA 1 2821004001 MX BTM FLEXI RS232 1 7 A8304003 SCREW M2x4MM PANHEAD B...

Page 14: ...cles in the illustration correspond to the items in the REF column of Table 2 1 2 3 4 5 6 7 8 10 9 Table 2 REF PART NO DESCRIPTION QTY 1 A2802000301 LCD MODULE 240x100 1 2 A8704000401 FOAM LCD SUPPORT...

Page 15: ...not necessary to dismantle the Drawer Assembly This illustration is included for information purposes only Note that the numbered circles in the illustration correspond to the items in the REF column...

Page 16: ...BACK 5 MLDG LITHIUM DOOR 5 MLDG CPU FRAME 5 S3C MLDG CONN SUPPORT 5 MLDG D TYPE BLANK 5 NUTSERTS 20 SCREW M2x4MM PANHEAD BLACK 40 THIN HEAD B TYPE DIA 2x4 LNG 20 DRAWER SPRING 20 FOAM LCD SUPPORT 10...

Page 17: ...WER 10 BTM SEAL 10 1828002601 MX DRAWER KIT BASE MX BASE DRAWER 10 BTM SEAL 10 Case Kits PART NUMBER DESCRIPTION QTY 1828003001 MX CASE KIT ALPHA GREY MX ALPHA CASE LATCH 10 LBL MX 2MB MEMORY 10 LBL M...

Page 18: ...LBL BOTTOM 10 BOTTOM SEAL 10 LBL BTM RS232 LIF 5 LBL BTM IRDA LIF 5 LCD Kits PART NUMBER DESCRIPTION QTY 1808001401 W A SPARES KIT BACKLIGHT KIT ASSY EL BACKLIGHT 3V 1808001520 W A SPARES KIT LCD LCD...

Page 19: ...get any liquid in your mouth or eyes In the event of any liquid crystal getting on skin or clothes wash it off immediately with soap and plenty of water and seek a doctor s advice Tools Required Tool...

Page 20: ...necessary as replacement cases are supplied complete with latches The following step is for information only 10 To remove the Latch Assembly remove the 3 screws from the latch case Be careful to catch...

Page 21: ...remove the 2 retaining screws on the Support Moulding b On a Barcode Wand Workabout remove the FFC from the ZIF and then remove the 2 retaining screws Retaining screws Expansion PCB Monitor PCB Barco...

Page 22: ...ule by the glass so that you do not damage the circuit boards Manoeuvre the module off the pin by wiggling the module while holding the glass 14 Remove the Backlight if fitted The Chassis Assembly is...

Page 23: ...SSD Drawer moulding until it becomes unclipped Take care not to damage the Lithium Battery Contacts on the FFC 5 Release the Piezo The tail that connects the Piezo to the Main Power FFC is quite thin...

Page 24: ...ngle it can cause open or short circuits Make sure that the bends in the FFCs allow the drawer to open and close correctly Re assembling the Drawer Assembly 1 2 Insert the Piezo and Main Power FFC ass...

Page 25: ...Chassis Seal 4 Fit the Main PCB 5 Connect the Backlight Power Connector 6 Fit the Option Port FFC or Blank 7 Add the Expansion or Monitor PCB if fitted 8 Fit the Connector Block The Chassis Assembly...

Page 26: ...rt the Chassis Assembly into the case 6 Fit 2 screws in the base of the case 7 Insert the fuse 8 Insert the Main and Lithium Batteries The Workabout has now been re assembled 9 Insert the SSDs 10 Clos...

Page 27: ...ing the RS232 Interface You can use the Comms application on the Workabout to turn on the RS232 interface on the option board and check the RS232 interface To check the RS232 interface 1 Switch on the...

Page 28: ...pec Use the and keys to select an item and the and keys to select a value b Set the baud rate to 9600 and the port to D or G as appropriate 3 Scan some sample bar codes The numerical equivalent of the...

Page 29: ...erial interface at 5V TTL levels n a 5V nominal 4 7V min software switched power supply VCCEXT which provides up to 200 mA with a current limit at approximately 250mA The serial format and the polarit...

Page 30: ...ible RS232 AT serial interface at standard RS232 voltage levels at up to 19 200 baud n an RS232 TTL serial interface at 5V TTL levels n a 5V nominal 4 7V min software switched power supply VCCEXT whic...

Page 31: ...e TTL Interface on page 22 for instructions on how to do this The 9 way D type female RS232 AT interface connector pin allocation is shown below Pin No Signal Name Remarks 1 DCD Handshake input 2 RX B...

Page 32: ...t Test Battery Cartridge 2800 0030 1 LIF Cable 2800 0005 1 Lithium Battery 4900 0018 Note The Final Test Unit is suitable for working with mains supplies in the range 90 130 180 260VAC 47 63Hz without...

Page 33: ...OFF 3 Connect the LIF Connector to the Workabout The LIF connector provides power to the Workabout Final Test Unit LIF Connector Workabout unit contains Lithium battery 2 x test SSDs Workabout Test Ba...

Page 34: ...ou can perform each check individually by selecting each option in turn from the test menu This procedure uses the All option to run through all the checks in one go 4 Select the All option from the t...

Page 35: ...und Workabout Test Battery Cartridge The BATTERY GROUND FAULT indicator should go off when the probe touches the metal 14 Remove the solid state disks battery pack and lithium battery 15 Close the dra...

Page 36: ...Confidential PSION INDUSTRIAL PLC Workabout MX Service Manual 30 Version 1 0...

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