Alpha Microsystems AM-990 Manuel de service

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Page 7AM-990 SBC Computer Service ManualINSTALLING PERIPHERALSMounting peripheral devices in your computer is simply a matter of attaching plastic rai

Page 8 AM-990 SBC Computer Service ManualThe first hard disk drive is mounted in slot 12, or slots 11 and 12 if it is a full-heightdevice. A second ha

Page 9AM-990 SBC Computer Service ManualHALF-HIGH 5-1/4"PERIPHERALDWF-20652-00MOUNTING RAILMAC471Attaching Mounting Rails to PeripheralAdditional

Page 10 AM-990 SBC Computer Service ManualSBC AM-140 CPU BOARDThe AM-140 is a 50Mhz main logic board available for the SBC. Most of the AM-140specifi

Page 11AM-990 SBC Computer Service ManualIf you are going to mix 4MB and 16MB memory boards in your SBC, make sure youinstall the 16MB boards first fo

Page 12 AM-990 SBC Computer Service ManualSW1J1J2J3J4J5J6J20J8J7J18J19J12J13J14J15J16J17J10U32BATTERYU97U130U131U14411111SERIALPORT 0SERIALPORT 1BOOTS

Page 13AM-990 SBC Computer Service ManualSBC AM-145 CPU BOARDThe AM-145 is a 33Mhz main logic board available for the SBC. Most of the AM-145specific

Page 14 AM-990 SBC Computer Service ManualIf your computer includes an AM-522 ESDI controller board, the maximum memorycapacity is reduced to 12 megab

Page 15AM-990 SBC Computer Service ManualSW1J20J21J12J14J15J13W12J9J2J4J5J16U124BATTERYU125U126U128U1271111SERIALPORT 0SERIALPORT 1BOOTSWITCHVCRREMOTE

 ALPHA MICROSYSTEMSFCC NoticeThis equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of

Page iAM-990 SBC Computer Service ManualTABLE OF CONTENTSINTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 1AM-990 SBC Computer Service ManualINTRODUCTIONThis document contains instructions which are intended only for authorized servicepersonnel. The A

Page 2 AM-990 SBC Computer Service ManualOpening the Top CoverIn order to remove the side panel, you must first remove the computer’s top cover. Thepr

Page 3AM-990 SBC Computer Service ManualTO REMOVE THE SIDE PANEL,REMOVE THESE FOUR SCREWS.TO REMOVE THE TOP COVER,REMOVE THESE TWO SCREWS.LEFT SIDE PA

Page 4 AM-990 SBC Computer Service ManualElectronic Equipment Handling PrecautionsWith the AC power cord unplugged and the sheet metal removed, the co

Page 5AM-990 SBC Computer Service ManualInside Your ComputerOnce you have removed the side panel, you will be able to gain access to theequipment insi

Page 6 AM-990 SBC Computer Service ManualReinstalling the Top Cover and Side PanelIf you removed the top cover and side panel as described in the two