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DayStar Digital Genesis MP Service Manual

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Genesis MP
Service Guide
DayStar Digital, Inc.
Technical Support Department
5556 Atlanta Highway
Flowery Branch, GA 30542
770-967-2077 fax: 770-967-3018
http://daystar.com/

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  • Page 1 Genesis MP Service Guide DayStar Digital, Inc. Technical Support Department 5556 Atlanta Highway Flowery Branch, GA 30542 770-967-2077 fax: 770-967-3018 http://daystar.com/...

  • Page 2: Fcc Statement

    ∆ IMPORTANT: Changes or modifications to this product not authorized by DayStar Digital, Inc., could void the FCC Certification and negate your own authority to operate the product. This product was tested for FCC compliance under conditions that included the use of DayStar peripheral devices and DayStar shielded cables and connectors between system components.

  • Page 3: About Genesis Mp

    Genesis MP is the fastest Mac OS based system available—the first Mac OS based computer with speed built-in. Using its exper- tise in multiprocessing, DayStar created Genesis MP with internal multiprocessing hardware and software.

  • Page 4: Conventions Used In This Guide

    The word front always refers to the front panel of the Genesis MP (floppy disk side). The word rear always refers to the rear panel of the Genesis MP (cable side).

  • Page 5: Standard Abbreviations

    MHz megahertz inches millimeters 1000 milliseconds 1024 microseconds kilobytes nanoseconds Ω kilograms ohms kilohertz sec. seconds kΩ kilohms volts pounds watts Genesis MP Preface – About Genesis MP...
  • Page 6 SCSI small computer system interface SIMM single inline memory module SVGA super video graphics adapter positive supply voltage video graphics adapter VRAM video RAM (used for display buffers) Preface – About Genesis MP Genesis MP...
  • Page 7 • Packing or Unpacking device(s) wrapped in foam ∆ CAUTION The Genesis MP uses electronic components that are sensitive to static electricity. Use care when handling and installing these com- ponents to prevent damage which can be caused by static cur- rents.
  • Page 8 Genesis MP is Shipped Complete with an Anti-Static Wrist Strap The Anti-static Wrist Strap shipped with the Genesis MP is a one-use disposable safety strap intended for the customer’s use. If you do not have a re-usable Anti-static Wrist Strap, be sure to purchase one for each employee that will be handling, installing, servicing, and/or main- taining equipment.
  • Page 9 MP, your computer is a Class 1 laser product. The Class 1 label, located in a user-accessible area, indicates that the drive meets minimum safety requirements. A service warning label is located in a service-accessible area. Genesis MP Preface – About Genesis MP...

  • Page 10: Lithium Battery

    Mark the zip-lock wrapper DEAD and return it to DayStar Digital, Inc, where it will be dis- posed of according to EPA guidelines. Disposal of a used battery should be handled in accordance with county, state, province, or local battery disposal regulations.

  • Page 11: Serial Number

    AC Power Functional Descriptions Serial Number Genesis MP's serial number should be provided to DayStar Digital, Inc. whenever requesting information or ordering spare parts. The serial number can be located on the rear I/O panel. Ensure you have this serial number available.
  • Page 12 Important Internal Components of the Genesis MP This photograph lists all the major internal components and fea- tures of the Genesis MP. Use this graphic to help familiarize your- self with the machine. Component CD-ROM Drive 5.25˝...
  • Page 13 AC Power Genesis MP provides power through the AC input power receptacle and a switched power convenience receptacle for monitor connection. Connecting AC Power to Genesis MP ∆ WARNING ALWAYS DISCONNECT POWER FROM GENESIS MP PRIOR TO PERFORMING ANY MAINTENANCE AND/OR SERVICE.

  • Page 14: Functional Descriptions

    PCI bus (SCSI-3, FiberChannel, SSA). It is also possible to configure a “software-only” disk array using the Fast SCSI-2 moth- erboard interface. For installation instructions refer to Chapter 3 of the Genesis MP User Guide. CD-ROM Drive Genesis MP has a CD-ROM drive that supports worldwide stan- dards and specifications for CD-ROM and CD-digital audio disks.

  • Page 15: Floppy Drive

    The 3 or 6 PCI slots allow for a broad range of expansion cards. Performance Tips: In the 6 slot Genesis MP, the six PCI slots are grouped into two groups of three each. Because the circuitry linking the top three...
  • Page 16 Memory Genesis MP does not have any main memory soldered to the logic board. At least one RAM DIMM must be present for the computer to operate. Genesis MP uses 168-pin Dual-Inline Memory Modules (DIMMs). DIMMs provide the widest possible data path to the processor, for maximum speed.

  • Page 17: Service Policies

    • Delivery Timetable • Shipping Methods The Genesis MP systems warranty The Genesis MP systems come with a 1 year limited, return to reseller, warranty. In order to receive your reimbursement, you must return to DayStar the defective components or subsystems.
  • Page 18 DayStar requires that you issue a P.O. or payment as outlined below: 1. With credit approval, Net 30-day invoicing You are eligible to be invoiced on account by DayStar Digital if you are currently in good standing with DayStar Digital’s credit department.
  • Page 19 EST. If received after noon EST the merchandise will be shipped out the next business day. Shipping Methods DayStar Digital, Inc. will pay to ship merchandise Federal Express Economy to the reseller. Returns of defective parts should be shipped to DayStar via Economy/2nd Day - bill recipient. If resellers return defective parts via more expensive modes, they will be billed the amount above the Economy/2nd Day rate.

  • Page 21: Troubleshooting

    Genesis MP Users Guide and DayStar’s site on the World Wide Web: http://daystar.com/ On DayStar’s Web site, you’ll find the latest software updates and...
  • Page 22 PRAM. It also manages and maintains information regarding all system resets from various commands. Examples of this are: keyboard restart, loss of power, software restart. Location of the CUDA Chip and reset switch Chapter 3 – Troubleshooting Guide Genesis MP...

  • Page 23: Power Supply

    5. Check the voltage of the battery (see Appendix C - Voltage Readings). If the battery is not providing sufficient voltage, replace it. 6. Disconnect SCSI devices. 7. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 8. Remove all PCI cards. Genesis MP...

  • Page 24: Error Chords

    Readings). If the battery is not providing sufficient voltage, replace it. 5. Disconnect SCSI devices. 6. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 7. Remove all PCI cards. 8. Remove the nPOWER card and disconnect the 3.3v connector from the motherboard.

  • Page 25: The System

    5. Perform voltage readings (see Appendix C - Voltage Readings). Resolve any problems found. 6. Reset the CUDA Chip (see section CUDA Chip in this chapter). 7. Replace the power supply. 8. Replace the nPOWER card. 9. Replace the motherboard. Genesis MP Chapter 3 – Troubleshooting Guide...
  • Page 26 7. Remove and test all DIMMs by replacing one at a time. Replace any defective DIMMs. 8. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 9. Reset the CUDA Chip (see section CUDA Chip in this chapter).
  • Page 27 1. Remove and test all DIMMs by replacing one at a time. Replace any defective DIMMs. 2. Remove and test the VRAM DIMMs. (If present in the 3 slot Genesis MP) 3. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 4.

  • Page 28: Floppy Disk Drive

    1. Ensure you are using a known-good startup diskette. 2. Check with a known-good floppy drive. 3. Replace the floppy drive. 4. Replace the floppy drive cable. 5. Replace the nPOWER card. 6. Replace the motherboard. Chapter 3 – Troubleshooting Guide Genesis MP...
  • Page 29 1. Check the floppy disk drive with a known-good diskette. 2. Check with a known-good floppy drive. 3. Replace the floppy drive. 4. Replace the floppy drive cable. 5. Replace the nPOWER card. 6. Replace the motherboard. Genesis MP Chapter 3 – Troubleshooting Guide...

  • Page 30: Hard Drive

    2. Verify that only the last device in the SCSI chain is terminated. 3. Mount the drive by utilizing the nPOWER Control application (refer to the Genesis MP User Guide for instructions). 4. Run Disk First Aid to verify the condition of the drive’s directory structure.
  • Page 31 8. If the mouse device doesn’t work while directly connected to the computer, replace the mouse. 9. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 10. Replace the motherboard. 11. Replace the nPOWER card.
  • Page 32 2. Check with a known-good keyboard. 3. Replace the keyboard. 4. Replace the keyboard cable. 5. Remove and test the cache DIMM. (If present in the 3 slot Genesis MP) 6. Replace the motherboard. 7. Replace the nPOWER card. CD-ROM Drive...

  • Page 33: Removal And Replacement

    Genesis MP, peripheral expansion, and removal and replace- ment of many of the subassemblies covered in this guide. In cases where a given procedure is explained in the Genesis MP User Guide, we will refer you to that guide for removal and replace- ment procedures.

  • Page 34: Tools Required

    DayStar Digital to arrange for refitting of the unit. ∆ Note Many of the repair procedures outlined in this chapter are easier to accomplish if the Genesis MP is placed flat on a table on its right side. Tools Required #2 Phillips Screwdriver #2 Phillips Screwdriver, 14-inch shaft...

  • Page 35: Replaceable Parts

    Replaceable Parts The following are the repair component subassemblies of the Genesis MP. You can order these parts from DayStar Digital: nPOWER Daughtercard Motherboard Power Supply 5.25˝ Fan SCSI Cable Assembly Floppy Disk Drive Cable Assembly CD-ROM Audio Cable Assembly...
  • Page 36 Processor Card 1. Shut down the Genesis MP and remove power from the unit. 2. Open Genesis MP (loosen the side door panel) by following the easy instructions in the Genesis MP User Guide. 3. Put on the anti-static wrist strap.
  • Page 37 9. Continue to support the card and screw the two hand screws on either side of the nPOWER card bracket into Genesis MP’s chassis. 10. Reinstall Genesis MP’s side door panel by tightening down the four hand screws. Genesis MP...
  • Page 38 Removal of the motherboard is as follows: 1. Shut down the Genesis MP and remove power from the unit. 2. Open Genesis MP (loosen the side door panel) by following the instructions in the Genesis MP User Guide.
  • Page 39 8. Remove the cables from the Genesis MP motherboard. a - Starting at the top left hand corner, the six cables running across the top of the motherboard are: Internal SCSI-2, Power Supply Cable Assy., Speaker, CD-ROM Audio Cable, Floppy Disk Drive, Power Supply Harness.
  • Page 40 Support the motherboard while removing the last few screws so that it does not fall out. Chapter 4 – Removal and Replacement Genesis MP...
  • Page 41 Motherboard Screws and Standoffs 6-slot motherboard, 11 screw tray Small Screw Large Screw Screw Number Large Screw Large Metal Standoff Large Nylon Standoff Small Screw Small Metal Standoff Small Nylon Standoff Genesis MP Chapter 4 – Removal and Replacement...
  • Page 42 Motherboard Screws and Standoffs 6-slot motherboard, 8 screw tray Small Screw Large Screw Screw Number Large Screw Large Metal Standoff Large Nylon Standoff Small Screw Small Metal Standoff Small Nylon Standoff Chapter 4 – Removal and Replacement Genesis MP...
  • Page 43 Motherboard Screws and Standoffs All 3 slot motherboards Small Screw Large Screw Screw Number Large Screw Large Metal Standoff Large Nylon Standoff Small Screw Small Metal Standoff Small Nylon Standoff Genesis MP Chapter 4 – Removal and Replacement...
  • Page 44 Replacement of Nylon Standoffs. 2. The motherboard should fit snugly against the gasket at the rear panel of the case without providing undue pressure to connectors mounted on the motherboard . Motherboard against gasket Chapter 4 – Removal and Replacement Genesis MP...
  • Page 45 4. By sliding the motherboard and tray assembly, gently snug the motherboard to the gasket at the rear of the machine. Do not place undue strain on the connectors at the rear of the motherboard. Genesis MP Chapter 4 – Removal and Replacement...
  • Page 46 If only a single nylon standoff is stripped, the Genesis MP case pro- vides enough redundant support that the standoff thread may be repaired with Loctite thread locker number 242.
  • Page 47 1. Unplug the 2 Power Supply cables from the motherboard (refer to diagram in Genesis MP Motherboard). 2. Unplug the power switch connector from the power supply har- ness (Power Supply Power Switch units only). See the section Power Switch and Cable for more information.
  • Page 48 Replacement is the reverse of removal, with these exceptions: 1. Align the Power Supply’s locator tabs with the slots in the power supply bracket Power supply locator tabs (seen from below) Chapter 4 – Removal and Replacement Genesis MP...
  • Page 49 Replacement is the reverse of removal, with the following exceptions: 1. Carefully use a new cable tie to attach the fan cables to the top fan in the same manner as the original unit. Genesis MP Chapter 4 – Removal and Replacement...
  • Page 50 Motherboard Tray The motherboard tray holds two 5.25˝ fans, the “PCI Bracket” (which stabilizes the inner end of PCI cards, and the Genesis MP Motherboard (which itself holds the nPOWER daughtercard). Typically, you will only remove the motherboard tray for replace- ment of fans.
  • Page 51 The cable goes up, is folded through a 90 degree angle, and runs along the back wall of the Genesis MP until it reaches the drive area. The cable turns to attach to the CD-ROM drive, folds several times to provide slack for connecting to devices in the removable media bay, then descends to the 3.5˝...
  • Page 52 4. Remove the CD-ROM drive and any other devices in the 5.25˝ drive bays.The floppy drive may be left in place. 5. Make room to work in the Genesis MP chassis: carefully secure SCSI, floppy and CD-ROM Audio cables out of the way.
  • Page 53 • One drive power cable (the short one) provides power to the 5.25˝ drive bay assembly. Make sure this cable is NOT routed between the 5.25˝ drive bay and the wall of the Genesis MP. Drive power/fan power routing Genesis MP...
  • Page 54 Power Switch and Cable Assembly There are two versions of Genesis MP with respect to the power switch: Motherboard Power Switch machines, and Power Supply Power Switch machines. One power switch and cable assembly is used for both machines. The replacement procedures differ significantly, however.
  • Page 55 3. Remove the Front Panel. See the section Genesis MP Front Panel (metal). 4. Note the cable routing and existing anchor points. See section Speaker Cable/LED Cable/Power Switch Cable Routing. Carefully clip the cable ties attaching the Power Switch Cable to other cables and anchors.
  • Page 56 Power Switch Cable to other cables and anchors. Cables are anchored on the inside of the front panel and at the Genesis MP side wall (accessible through the 3.5˝ drive bay). 4. Remove switch and cable. Switch is removed by squeezing the sides of the switch housing and pushing it forward.
  • Page 57 Motherboard Tray. Speaker and Cable Assembly Removal and replacement of the Speaker and Cable assembly requires removal of the Genesis MP front panel. Read and under- stand that procedure before beginning. Speaker in front panel. The Speaker is located at the bottom center of the front panel and connects to the motherboard at the connector on the top edge.
  • Page 58 Genesis MP chassis. The speaker cable should be tied off to the drive bay/fan power cable assembly. • The LED cable and power switch cables are routed to the center-right of the front panel and into the Genesis MP chas- sis. LED, power switch and...
  • Page 59 It may be necessary to remove devices installed in the 5.25˝ removable media bay in order to secure access to the nuts attach- ing the 5.25˝ drive bay assembly to the wall of the Genesis MP chassis. DayStar recommends that you back up all hard disks before beginning any procedure requiring removal of a hard disk.
  • Page 60 Support the Genesis MP Front panel so that it does not fall and stress cable subassemblies or cause damage to the metal, the fasteners or the attached LED, Power Switch and Speaker sub- assemblies.
  • Page 61 Snap fittings/attaching bezels The top bezel is held in place by two captive Phillips-head screws which may be accessed from the inside of the Genesis MP. The screws, located at either side of the 5.25˝ drive bay assembly, may be removed without removing other components.
  • Page 62 Audio/Video (AV) Module (3-slot units only) The Audio/Video (AV) Module is mounted to the metal AV Panel, which is in turn mounted to the rear panel of the Genesis MP. You will typically remove the AV Module when removing the mother- board from the 3-slot Genesis MP.
  • Page 63 3. Disconnect the AV cable from its slot near the nPOWER proces- sor card slot. Removing the Audio/Video (AV) cable Replacement is the reverse of removal. Use care not to place undue strain on the delicate AV cable during replacement. Genesis MP Chapter 4 – Removal and Replacement...

  • Page 64: Lithium Battery

    Lithium Battery Genesis MP uses a lithium battery to store users’ preferences and time and date information while the unit is not turned on. ∆ CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the battery manufacturer.
  • Page 65 PCI Expansion Cards Removal and replacement of PCI expansion cards is discussed in Chapter 3 of the Genesis MP User Guide. For tips on PCI Card Performance, see Chapter 1 of the Genesis MP Service Guide, section Functional Descriptions: PCI Cards.

  • Page 67: External Connections

    Appendix A External Connections This chapter describes the I/O features of the Genesis MP and the interfaces for external I/O devices. The interfaces and their pinouts are listed below. Note: The A/V features and specification that are specific to the 3 slot Genesis MP are described in Apple’s Technical Information manu-...
  • Page 68 The Serial Ports The Genesis MP Systems have two serial ports located on the back panel. Both of these ports use 9-pin circular mini-DIN sock- ets. The serial port sockets will accept either 8 or 9-pin plugs. With external modules connected to these serial ports, the Genesis MP System can communicate with a variety of ISDN and other telephony transmission products.

  • Page 69: Ethernet Port

    The Apple Desktop Bus (ADB) The ADB is an asynchronous communication bus used for slower input devices (i.e., keyboard, mouse). The Genesis MP has a sin- gle ADB port located on the back panel. The connector is a 4-pin mini-DIN socket.
  • Page 70 SCSI Port Genesis MP uses a SCSI bus for external SCSI devices. The external SCSI connector is a 25-pin D-type connector. Refer to the table for the SCSI Connector pin assignments. The external SCSI port has automatic termination capability. When no external SCSI device is connected, the automatic termination capability is active.
  • Page 71 Sound Input Jack The Genesis MP stereo sound input jack is for connecting an external microphone or a line-level source. The computer provides sound digitization and recording with 16-bit samples at sample rates of up to 44.1 KHz and supports Apple Computer’s speech synthesis and recognition software.

  • Page 73: Internal Connections

    Connector Pin Assignments in Appendix A. Internal Hard Disk Drive Genesis MP has one internal hard disk drive. This drive is con- nected to the internal SCSI hard disk connector. The internal end of the SCSI bus is terminated by a 110 Ω passive terminator.

  • Page 74: The Floppy Disk Drive

    600 KB per second and a data buffer to further enhance performance. The Floppy Disk Drive Genesis MP has one internal high-density floppy disk drive. This drive is connected to a 20-pin connector. The table lists the Floppy Disk Connector pin assignments.
  • Page 75 VRAM DIMMs must be installed in pairs, allowing for either 2 or 4 MB of total VRAM. Cache Connector (3 slot Genesis MP) The 3 slot Genesis MP has an expansion slot for a Level 2 (L2) or secondary cache DIMM. Cache DIMMs are available in sizes from 256K to 4 MB.

  • Page 77: Voltage Readings

    Is AC power reaching the power supply? Is the monitor getting power? If you cannot boot the system from the keyboard power-on switch, make sure both ends of the keyboard cable are securely plugged in. Genesis MP Appendix C...
  • Page 78 Pin 1 - Orange - 12 VDC Pins 2, 3 - Black - Ground Pin 4 - Red - 5 VDC Metering drive power cable ORANGE/BLACK = 12 VDC .7 VDC RED/BLACK = 5 VDC .3 VDC Appendix C Genesis MP...
  • Page 79 Pin 12 - Yellow - Trickle 5 VDC Pin 21 - White Pin 22 - Orange - 12 VDC Measuring motherboard main power supply RED/BLACK = ORANGE/BLACK = 12V BLUE/BLACK = -12V +/- YELLOW/BLACK = trickle 5V +/- .3 Genesis MP Appendix C...
  • Page 80 “+” on the logic board) and the negative probe to the negative end of the battery. If the battery voltage is below 3.2 volts, replace the battery. Refer to Chapter 1 of this guide for battery disposal procedures. Appendix C Genesis MP...

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