Alpha Microsystems AM-990, Service Manual

Page 1: ...T FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START RIGHT FROM THE START For Authorized Service Personnel Only AM 990 SBC Service Manual DSS 10524 00 Rev A01 ...

Page 2: ... O Vac BR2325 only Use of another battery may present a risk of fire or explosion Replacement batteries may be ordered from your authorized Alpha Micro reseller For AM 3500 E550 and AM 990 04 systems replace batteries with Panasonic or Ray O Vac BR1225 only Use of another battery may present a risk of fire or explosion Replacement batteries may be ordered from your authorized Alpha Micro reseller ...

Page 3: ...ide Your Computer 5 Reinstalling the Top Cover and Side Panel 6 INSTALLING PERIPHERALS 7 Plastic Mounting Rails 8 Additional Documentation 9 SBC AM 140 CPU BOARD 10 Remote Reset Capability 10 Serial I O Port Configuration 10 Configuring SBC Memory 10 SBC Expansion I O 11 SBC AM 145 CPU BOARD 13 Remote Reset Capability 13 Serial I O Port Configuration 13 Configuring SBC Memory 13 SBC Expansion I O ...

Page 4: ...YOUR COMPUTER When adding additional equipment or servicing your computer it will be necessary to gain access to the components inside the computer The following sections include instructions on opening the computer s front door removing the the computer s top cover and removing the computer s side panel Your computer operates at hazardous voltages Before you attempt service components inside the ...

Page 5: ...palm of your hand to firmly strike the rear corners of the top cover This will cause the top cover to slide forward To protect your hand place some type of padding over the rear corners of the top cover 5 Once the top cover slides forward pull straight up to remove it 6 Place the top cover out of the way so it will not get damaged Make sure you do not bend the locking tabs Opening the Side Door To...

Page 6: ...mputer Service Manual TO REMOVE THE SIDE PANEL REMOVE THESE FOUR SCREWS TO REMOVE THE TOP COVER REMOVE THESE TWO SCREWS LEFT SIDE PANEL TOP COVER LOCKING TABS MAC442 Removable Top Cover and Side Panel DSS 10524 00 Rev A01 ...

Page 7: ... are capable of storing an electrical charge that can damage or destroy unprotected electronic components Prior to handling any computer hardware make sure your work area is properly protected against static discharge There are a number of commercially available static protection devices like the wrist strap shown below designed specifically to protect your equipment from harmful static discharge ...

Page 8: ...mputer The illustration below shows the location of the basic components that make up your computer POWER SUPPLY COOLING FANS TYPICAL SYSTEM CPU BOARD PERIPHERAL MOUNTING AREA REAR PANEL ACCESS TO I O CONNECTORS MAC573 TOP ACCESS TO OPTIONAL AUXILIARY I O PANEL SW1 J1 J2 J8 J7 J18 J19 J10 BATTERY 1 1 1 CPU W1 W8 Inside the Computer Side View DSS 10524 00 Rev A01 ...

Page 9: ... 1 2 gap between the front lip of the side panel with the four screw holes and the threaded holes in the cabinet 4 Using the palm of your hand firmly strike the front edge of the side panel this will cause the side panel to slide back into its proper mounting position 5 Reinstall the four screws Top Cover 1 When setting the top cover in position make sure each tab is aligned with a corresponding s...

Page 10: ...vices using removable media This cutout will accommodate up to four 5 1 4 half height peripherals The following illustration shows the peripheral mounting area for your computer with the slots numbered 1 through 12 COOLING FANS TYPICAL SYSTEM CPU BOARD PERIPHERAL MOUNTING AREA MAC575 SW1 J1 J2 J8 J7 J18 J19 J10 BATTERY 1 1 1 CPU W1 W8 1 2 3 4 5 6 7 8 9 10 11 12 Peripheral Mounting Area Slots 3 4 5...

Page 11: ...unted on either the right or left hand side of the peripheral The illustration showing the rail explains how it is installed on various types of peripherals LONG END SHORT END Use the top holes for mounting full height devices Use the bottom holes for mounting half height devices PERIPHERAL MOUNTING RAIL DWF 20652 00 SHORT END For Tandberg 1 4 streaming tape drives and all hard disk drives mount t...

Page 12: ... own set of installation instructions The installation instructions include information on jumper settings termination and cabling Before installing a peripheral make sure you read the documentation pertaining to the device If the documentation was not included with your peripheral device it is also contained on the AlphaCD which is distributed to all Alpha Micro Value Added Resellers on a quarter...

Page 13: ... push button switch to short Pin 1 in that connector to Pin 7 Signal Ground resetting the computer To enable remote reset you must install a shorting block in the REMOTE RESET position on the SBC main logic board See the illustration Serial I O Port Configuration Ports 0 and 1 on the SBC are factory configured for RS 232 compatibility You can configure either or both of these ports for RS 422 comp...

Page 14: ...M 355 I O bus AM 355 I O boards attached to connector J7 use the same interface driver used by the two serial ports on the CPU board AM140 IDV AM 358 and AM 359 I O paddle cards and any other AM 355 I O bus paddle cards attached to the J7 connector will use the drivers designed for those specific devices For example AM358 IDVand AM359 IDV The J8 connector ONLY supports AM 355 AM 358 and AM 359 I O...

Page 15: ...BOOT PROMS LOW BYTE HIGH BYTE CPU FLOATING POINT CO PROCESSOR SOCKET 36 PIN FLOPPY CONNECTOR FRONT PANEL DISPLAY MEMORY EXPANSION PARITY STATUS 60 PIN ESDI CONNECTOR SSD SOCKET 60 PIN I O CONNECTORS W1 W8 W10 W9 W12 W11 W14 W13 W15 W88 W7 W6 W5 W4 W3 W2 232 422 232 422 W8 REMOTE RESET JUMPER IN ENABLED JUMPER OUT DISABLED W10 LINK TERMINATION JUMPER JUMPER IN ENABLED JUMPER OUT DISABLED W12 NTSC P...

Page 16: ...se a push button switch to short Pin 1 in that connector to Pin 7 Signal Ground resetting the computer To enable remote reset you must install a shorting block in the REMOTE RESET position on the SBC main logic board See the illustration Serial I O Port Configuration Ports 0 and 1 on the SBC are factory configured for RS 232 compatibility You can configure either or both of these ports for RS 422 ...

Page 17: ... two standard AM 145 serial I O ports 0 and 1 shown in the illustration AM 355 I O boards attached to connector J9 use the same interface driver used by the two serial ports on the CPU board AM145 IDV AM 358 and AM 359 I O paddle cards connected to the AM 355 I O bus use the interface drivers called AM358 IDV and AM359 IDV Other types of boards designed to be used on the AM 355 I O bus have their ...

Page 18: ...NG POINT CO PROCESSOR SOCKET 36 PIN FLOPPY CONNECTOR FRONT PANEL DISPLAY MEMORY EXPANSION SSD SOCKET 60 PIN I O CONNECTORS W15 W50 W5 W4 W3 W8 W7 W6 232 422 232 422 W18 REMOTE RESET JUMPER IN ENABLED JUMPER OUT DISABLED W17 LINK TERMINATION JUMPER JUMPER IN ENABLED JUMPER OUT DISABLED W13 NTSC MAC576 J6 J7 J8 W18 W11 1 W1 W9 W2 PAL 2716 2764 W13 NTSC PAL W17 J1 W1A W14 W100 On B Revison artwork an...