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TROUBLESHOOTING 

 
 

Problem Possible 

Solutions 

Inverter board component level 
failure. 

Check that the LCD data cable is 
seated properly at the LCD and 
Motherboard end. 

Damaged or defective LCD data 
cable. 

LCD screen unreadable; Character 
missing pixels; Screen abnormal; 
Wrong color displayed; Horizontal or 
vertical lines displayed. 

NOTE:  a few pixel abnormalities may 
be normal.  Refer to note on page 6-7 
‘Appendix B’. 

Swap in another LCD (same model) 
to determine if the LCD is faulty. 

Check that the Power Supply is 
connected properly at the Workstation 
and wall outlet end. 

Check wall outlet with a Wall Socket 
Circuit Tester or Multimeter to make 
sure there is power. 

Check the Power Supply’s end 
connectors to make sure they are in 
good condition. 

Swap in a known working Power 
Supply.  If the unit powers then the 
problem is with the Power Supply, if it 
doesn’t then the problem lies within 
the Workstation (component or board 
circuit level). 

Workstation does not power up – no 
video; no fan sound; Badge Reader’s 
LED off. 

Check resettable fuse FS4 on the 
Motherboard. 

 

3/24/05

  

Preliminary 

Release 

5-5

 

Содержание SQ-2020

Страница 1: ...Squirrel Workstation 8 SQ 2020 Operator and Service Manual Revision 1 0...

Страница 2: ...r s authority to operate the equipment Information in this document is subject to change without notice No part of this document may be reproduced or transmitted in any form or by any means electronic...

Страница 3: ...Squirrel Workstation 8 Records of Revision Date Reference Page Paragraph Drawing No Revision No Comments Check and Approval Mar 31 05 Rev 1 0 Initial Release D O Brien...

Страница 4: ...Reassembling Replacing the Touch Screen Sensor Overlay 2 14 Removing the DG41 LCD from the LCD Mounting Bracket 2 14 Disconnecting the LCD Data Cable 2 16 Removing the Open Frame Inverter 2 16 Reasse...

Страница 5: ...NCE 4 1 CARING FOR THE WORKSTATION 8 4 1 General Cleaning 4 1 Cleaning the Credit Card Reader 4 2 CHAPTER 5 TROUBLESHOOTING 5 1 CHAPTER 6 APPENDICES 6 1 APPENDIX A ESD WORK STATION 6 1 Maximum Allowab...

Страница 6: ...Foil Taping the Rear Shield Casing 89 541 6 13 Foil Tape Specifications 6 14 APPENDIX G 6 15 Connector Descriptions 6 15 Jumper Descriptions 6 16 Jumper Settings Information 6 17 APPENDIX H BUTTERFLY...

Страница 7: ...is manual includes Specifications for electrical power requirements and interface cable installation Installation guidelines for mounting hardware and procedures pertaining to the Wall Bracket and Til...

Страница 8: ...porting SPP EPP ECP parallel mode SERIAL PORTS COM 1 2 External RJ11 RS 232 COM 4 External RJ11 RS232 supports 5V power COM 1 2 3 Onboard 2x5 Header RS 232 KEYBOARD CONNECTOR Mini DIN keyboard connect...

Страница 9: ...Supports 2 cash drawers RJ11 connector Peripherals Devices MAGNETIC SWIPE Bi directional read Track 1 Track 2 Software Compatibility SOFTWARE POS SquirrelOne External Power Supply Adaptor INPUT REQUIR...

Страница 10: ...12 47 lbs 5 64 kg WS on stand 7 10 lbs 3 22 kg WS only ACCESSORIES ETHERNET CABLE Standard CHECK PRINTER COMMUNICATION CABLE Standard EXTERNAL POWER SUPPLY WITH POWER CORD Standard CASH DRAWER CABLE...

Страница 11: ...GENERAL INFORMATION WORKSTATION 8 DIMENSIONS 3 24 05 Preliminary Release 1 5...

Страница 12: ...GENERAL INFORMATION Side Dimensions External Power Supply Dimensions 1 6 Preliminary Release 3 24 05...

Страница 13: ...Product Description Touchscreen Optical ID Reader Badge Card Slot Magswipe Reader Slot Adjustable Stand and Backplate Air Exhaust Area Power Switch Keyboard Port Internal Intake Fan Vents 3 24 05 Prel...

Страница 14: ...ashdrawer Port RJ12 Jack provides Dual Cashdrawer Output 5 COM 2 RJ12 Interface Jack configured for default POS printer 6 COM 1 RJ12 Interface Jack configured for default POS printer Refer to Appendix...

Страница 15: ...rcuit boards need to be handled and stored with care to prevent any ESD damage Refer to APPENDIX C Opening Closing all cabling needs to be arranged so that they will not be pinched or interfere when y...

Страница 16: ...mber Workstation 8 for SquirrelOne with Power Supply and Stand SQ 2020 Workstation 8 for SquirrelOne with Power Supply and no Stand SQ 2021 Workstation 8 for SquirrelOne without Power Supply and Stand...

Страница 17: ...95 026 Plastic Split Tubing per foot 77 040 6 32 X 1 Pan Head Phillips Screw Front to back housing 82 009 4 Star Washer For LCD mounting and motherboard 83 003 Screw 4 40 x LCD to mounting bracket Mot...

Страница 18: ...stable Stand with Weight Assy 92 205 Base 92 195 Back Plate 99 604 Wall Mount Bracket 92 207 Rear Workstation 8 Plastic Housing 99 618 Top Workstation 8 Plastic Cover 99 622 WS8 High Touch Strip 99 62...

Страница 19: ...static mat Ensure that the mat is clean of debris that could scratch or damage the workstation 2 Remove all 10 screws that secure the front cover to the bottom housing as shown in the picture below 3...

Страница 20: ...Top Cover Front View Back View LCD Optical ID Reader Isis Badge Reader Magswipe Reader Base Bottom Housing Sensor Overlay LCD Mounting Bracket Power Switch Spray coated with copper loaded paint for EM...

Страница 21: ...h the gasket during application Reassembling the top cover to the bottom housing is the reverse of the disassembly process When the top cover is fitted over the bottom housing make sure the Badge Read...

Страница 22: ...d or silver carefully grasp the top edges of the emitter and detector boards and gently slide them together upwards and out of the card guides Removing the ISIS Badge Reader Optical Reader Care should...

Страница 23: ...cted from the Motherboard after the LCD Mounting Bracket is disassembled from the Internal Shield Housing Pin 1 Red wire Replacing these boards is the reverse of removing and care should be exercised...

Страница 24: ...der LEDs If the LED is not properly positioned or the lightpipe is dim and uneven the LED can be carefully bent into a better position ensuring that the LED does not touch the card guide In the event...

Страница 25: ...ssembly No tools are required when removing the LCD Mounting Bracket from the Rear Internal Shield Assembly Removing the DG41 LCD Assembly Mounting Bracket from the Rear Internal Shield Assembly 1 Car...

Страница 26: ...bles attention should be paid as to how the cables are connected to the Motherboard and the orientation of the cables connectors When disconnecting cables DO NOT PULL on the cable itself Remove discon...

Страница 27: ...quired Removing the Touch Screen Sensor Overlay The LCD panel is very sensitive to pressure and can be damaged Keep dirt and debris away from the LCD panel Refer to APPENDIX B on Handling the LCD Disa...

Страница 28: ...ng the Touchscreen Sensor to the LCD the Active Area Border of the Touchscreen Sensor must be aligned to the LCD s Display Area Border Once positioned gently press the Touchscreen firmly against the L...

Страница 29: ...wdriver remove the 4 screws and washers that secure the LCD to the LCD Mounting Bracket 4 40x1 4 Screw 4 Star Washer 5 Cut the cable tie that is securing the LCD Data Cable 6 Carefully pull back the R...

Страница 30: ...the Open Frame Inverter Turn the LCD Mounting Bracket over Using a 1 Phillips screwdriver unscrew the 2 screws securing the Inverter to the LCD Mounting Bracket Refer to Appendix I for LCD bracket pre...

Страница 31: ...the LCD data cable to the LCD B Incorrect connection Stress is dispersed Base horizontal film base is required Base horizontal film base is required ispersed Stress is d A Correct connection 2 When mo...

Страница 32: ...tabs located on the motherboard NOT E NOT E 2 Cut the cable tie strap securing the ferrite bead to the Rear Internal Shield Casing When disconnecting cables DO NOT PULL on the cable itself Remove disc...

Страница 33: ...e assembly straight out of the base bottom evenly Reassembly Reassembly is the reverse of the disassembly process Simply align the Internal Shield Assembly to the Base Bottom Housing and carefully low...

Страница 34: ...pin header Reference Designator CN2 on the motherboard CN2 2 The fan is secured via two 6 32x1 2 Phil screws as depicted below onto PEM Head Standoffs located inside the Shield Housing To remove the f...

Страница 35: ...the motherboard to the Internal Shield Casing 2 Removing the motherboard out of the Rear Shield Housing should be done with care and without any stress to the board To remove the motherboard carefull...

Страница 36: ...eyboard connector is aligned properly to the metal casing s opening before securing board down NOT E 4 Install screws and washers to secure the motherboard to the shield casing Screws have two purpose...

Страница 37: ...and exit CMOS for changes to take effect Removing the Card Guide Rails Using a Phillips 1 screwdriver remove the two screws one on each Card Guide securing the Card Guides to the Base Bottom Plastics...

Страница 38: ...ns when selecting an installation location or enclosure Refer to Chapter 1 for product dimensions 3 Workstation must be placed mounted at a comfortable working level and yet will not block traffic flo...

Страница 39: ...with the SQUIRREL POWER SPECIFICATION GUIDE This means the Workstation as well as all locally connected peripherals will be plugged into a SQUIRREL Dedicated Isolated Ground receptacle Location and M...

Страница 40: ...spend the Workstation 8 from a shelf rack wall or to support the Workstation on a countertop in a traditional fashion By aligning the Workstation in different positions on the Back Plate of the Tilt S...

Страница 41: ...orkstation 8 can be secured to the Back Plate sideways except when attached from the left Use only two screws as shown in Figure 3 2 Figure 3 2 Workstation 8 with Tilt Stand Sideways from Left Tilt St...

Страница 42: ...the surface where the base is being installed Long wood screws should be used for wood paneling and shelves and butterfly shield screws MUST be used for a surface such as gyproc Ensure that wood scre...

Страница 43: ...stand to the wall countertop or shelf if necessary See Figure 3 5 The Workstation may have to be removed in order to do this BASE TILT STAND BACK PLATE BASE SCREWS 3 Figure 3 5 Tilt Stand Base Screws...

Страница 44: ...gle with a felt pen The back plate angle can now be set by tightening the setscrews using the mark on the tape as a guide for the desired angle Don t forget to remove the tape afterwards 4 If needed t...

Страница 45: ...o fall See Appendix H for the use of Butterfly shield type screw Mounting flanges on the Wall Bracket hold and support the Workstation A foam insert is included as a spacer to prevent unintended dislo...

Страница 46: ...to attach the Wall Bracket to the Workstation as shown in Figure 3 8 Figure 3 8 Attaching the Wall Bracket to the Workstation 8 The standard communication protocol between the Host Server and the WS8...

Страница 47: ...loaded and the Workstation has initialized insert the badge card of the desired series 3 The badge reader will automatically configure itself to the series of badge card inserted after power on 4 To r...

Страница 48: ...still holds for the WS8 product This color scheme was introduced to aid in connecting peripherals to their respective I O port connectors Interface cables used to connect the peripherals to their res...

Страница 49: ...orkstation Peripheral Setup SQ 7035 SQ 7175 SQ 7035 Tower OR Weigh Scale OR Bar Code Rdr Cash Drawer Printer SQ 7035 SQ 7706 Matching Color Band Power Supply Note depending on peripheral COM port can...

Страница 50: ...e connected 2 Turn the power switch ON 3 On power up the screen will go white for a few seconds and the ISIS Badge Reader LEDs will also turn on The following chain of events will take place o POST Po...

Страница 51: ...badge series to be used Screen Contrast The Workstation 8 is designed so that the screen contrast is preset to the maximum setting and thus eliminating the need for contrast control Volume Control The...

Страница 52: ...a clean soft damp cloth to remove dust and minor stains Soap and warm water can be used carefully with a rag to clean stains Make certain that the Workstation is powered OFF and that NO water can drip...

Страница 53: ...em from occurring Disposable cleaning cards are available from SQUIRREL for cleaning the Credit Card Reader A card should be used to clean the reader every 2 4 weeks depending on usage If the credit c...

Страница 54: ...thus far proven to be a very reliable product However there is always a chance that you may experience some problems Listed below are some common problems and possible solutions Problem Possible Solut...

Страница 55: ...d Badge Cards Top LED of the Badge Reader is either continuously flashing or off Swap with another known working Badge Reader and check if problem is rectified The Magnetic Swipe Reader is a bi direct...

Страница 56: ...cable with a known working cable Swap in a known working Workstation and if the problem still persists then the problem lies in the wiring or the Host Server Communication problems Make certain that t...

Страница 57: ...then the problem could be component related on the Motherboard If both LEDs pulse ON then proceed to other Possible Solutions listed below Check to make sure that the interface cable between the Cash...

Страница 58: ...determine if the LCD is faulty Check that the Power Supply is connected properly at the Workstation and wall outlet end Check wall outlet with a Wall Socket Circuit Tester or Multimeter to make sure...

Страница 59: ...cord that connects a person s skin to ground 2 Common Ground Cord A cable and connector that connect a table mat and one or two wrist straps to ground 1 Table Mat A work surface that dissipates static...

Страница 60: ...es include Styrofoam cups plastic lunch bags and containers combs and brushes Require personnel that wear heel grounders to also wear a wrist strap when they sit at a workbench Most people lift their...

Страница 61: ...Plastic solder suckers hand tools coated handles soldering irons with ungrounded tips heat guns used bar heat shrink tubing drying conformal coating etc solvent brushes synthetic bristles 9 Manufactur...

Страница 62: ...d people that touching ground will make you safe it will only while your are touching ground once you disengage that connection you put all sensitive ESD devices at risk NOT E Field Service Kit A typi...

Страница 63: ...r Impact scratching or rubbing the LCD s surface can easily damage the polarizer and can degrade the display quality Mechanical Force and Strength Do not touch the display surface of the LCD as it is...

Страница 64: ...se organic solvents to clean the display panel off as these solvents may be adverse to polarizers Petroleum benzene is preferred for cleaning the surface of the LCD to remove most stains and smudges S...

Страница 65: ...ent chemicals avoid ingestion of liquid crystal and glass particles Pixel Abnormalities AQL Modern LCDs frequently have up to a few pixel abnormalities even as brand new and this is normal Some years...

Страница 66: ...k place When using conductive foam do not remove or insert ICs unless at a static safe work area Make sure that leads do not penetrate to the other side of the foam It s a good idea to put static awar...

Страница 67: ...US C D Pin2 TXD Pin4 C D1 Pin3 CTS default or RXD Pin5 Gnd Note Pin3 is internally configurable Pin6 C D2 Pin4 RXD COM 2 COM 4 RS 232 Signals RS 232 Signals Pin1 Gnd Pin1 Gnd Pin2 TXD Pin2 Tx Pin3 CTS...

Страница 68: ...to remove any fingerprints Specifications Mechanical Construction Top Polyester with outside hard surface coating with clear or antiglare finish Inside Transparent conductive coating Bottom Glass sub...

Страница 69: ...non condensing Operating 90 RH at 35 C Storage 90 RH at 35 C NOTE A special overlay for an extra HI humidity environment is available Contact Squirrel for inquiries Chemical Resistance The touch activ...

Страница 70: ...nt J12 CN15 CN12 CN11 CN13 CN17 CN2 CN23 CN10 Parts not populated to make room for chassis fan CN11 Mouse Connector CN13 USB Connector CN17 USB Connector J11 CN9 CN14 J14 J13 CN21 CN19 CN20 JP6 JP7 JP...

Страница 71: ...NG NOTE CENTER TAPE TO CORNER LENGTH 1 x METAL FOIL TAPE 88 025 TO THE OUTSIDE BOTTOM CORNER PORTION OF THE CASING 1 x METAL FOIL TAPE 88 025 TO THE OUTSIDE CORNERS OF THE SHIELD CASING NOTE CENTER TA...

Страница 72: ...adhesive on liner o Its acrylic adhesive has good resistance to heat oxidation solvents and oils Properties Typical Values Backing thickness 1 4 mil 0 04mm Total thickness backing plus adhesive 2 6 mi...

Страница 73: ...N SENSOR CN7 INVERTER BACK LIGHT PWR TFT DISPLAY JP2 KYBRD CN22 KYBRD MS CN8 KYBRD PS 2 CN2 FAN SYSTEM CN9 CN10 LCD INTERFACE TFT OR PASSIVE CN21 DC PWR JACK COM2 COM4 CN20 I O INTERFACE COM1 CN18 IDE...

Страница 74: ...SEL J16 COM4_DTR DSR J18 COM4_CTS J17 COM2_CTS J15 COM1_CTS J25 COM2_DSR_DTR J27 COM1_DSR_DTR J21 BACKLIGHT SELECT J3 BACKLIGHT SELECT J10 WATCHDOG SEL J9 LCD TYPE SEL J7 ISIS RESET J8 BACKLIGHT SEL J...

Страница 75: ...J8 CLEAR RTC J5 ISIS RESET J7 1 2 3 Default Factory Setting 1 2 3 1 2 3 1 2 3 Default Factory Setting To Reset CMOS Temporarily Default Factory Setting Default Factory Setting FAN PWR J12 WATCHDOG SEL...

Страница 76: ...per Position 1 2 GND 3 4 5v 5 6 12v 2 4 6 1 3 5 Default Factory Setting Default Factory Setting Default Factory Setting JP4 2 4 6 8 10 12 14 16 18 1 3 5 7 9 11 13 15 17 Default Factory Setting J15 J15...

Страница 77: ...PWR GND to CN25 Pin 8 Jumper Position 1 2 GND 3 4 5v 5 6 12v Default Factory Setting 2 4 6 1 3 5 2 4 6 8 10 12 14 16 18 1 3 5 7 9 11 13 15 17 Default Factory Setting J17 1 2 J17 1 2 Default Factory S...

Страница 78: ...Default Factory Setting J18 1 2 2 4 6 1 3 5 Default Factory Setting Default Factory Setting JP5 2 4 6 8 10 12 14 16 18 1 3 5 7 9 11 13 15 17 JP8 1 2 3 Default Factory Setting Default Factory Setting O...

Страница 79: ...l a 5 16 hole for each mounting screw Squeeze the Butterfly Shield flat and insert it into the hole Refer to Figure A 1a 2 Tap the Butterfly Shield flat Refer to figure A 1 b 3 Align the Wall Bracket...

Страница 80: ...e start of the next RF Gasket strip STEP 4 INSTALL CABLE TIE MOUNT TO SECURE LCD DATA CABLE AFTER CABLE IS IN POSITION STEP 1 INSTALL RF GASKET STRIPS AROUND PERIMETER OF BRACKET 83 006 6 NYLON WASHER...

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