$/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ For Authorized Service Personnel Only: AM-6000 Service Manual 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0,&526<67(06 5,*+7 )520 7+( 67$57 $/3+$ 0
FIRST EDITION: August 1998 To re-order this document, request part number DSS-10579-00 FCC Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Table of Contents INTRODUCTION...................................................................................................................1 ACCESSING YOUR COMPUTER (DESKSIDE CHASSIS VERSION) ................................1 ACCESSING YOUR COMPUTER (AM-990 AND AM-990 JUMBO CHASSIS) ..................2 ELECTRONIC EQUIPMENT HANDLING PRECAUTIONS ................................................3 HARDWARE CONFIGURABLE OPTIONS ..........................................................................
AM-6000 Service Manual Page 1 INTRODUCTION This document contains instructions which are intended only for authorized service personnel. AM-6000 computers contain a high-output power supply, which produces current levels high enough to make it unsafe for unauthorized persons to perform work inside the chassis. This document describes the AM-6000 computer package in both the deskside and the AM-990 chassis. It covers the following procedures: • Removing your computer's cover.
Page 2 AM-6000 Service Manual Figure 2: Deskside Chassis Top Cover Removal ACCESSING YOUR COMPUTER (AM-990 AND AM-990 JUMBO CHASSIS) When adding additional equipment or servicing your computer, you will have to gain access to the components inside the computer. To do so, you will need to remove the computer's top cover and side panel. To remove the top cover: 1. Unlock the front door and swing it open. 2. Behind the front door, remove the two screws that connect the top cover to the chassis 3.
AM-6000 Service Manual Page 3 LOCKING TABS R E TOP COV TO REMOVE THE SIDE COVER, REMOVE THESE FOUR SCREWS. TO REMOVE THE TOP COVER, REMOVE THESE TWO SCREWS. Figure 3: AM-990 Chassis Removal 4. Once the top cover slides forward, pull straight up to remove it. To remove the side panel: 1. Remove the four screws that secure the left side panel to the chassis. 2. Using the palm of your hand, firmly strike the rear edge of the side panel. 3.
Page 4 AM-6000 Service Manual Figure 4: Static Protection Wrist Strap HARDWARE CONFIGURABLE OPTIONS The following sections summarize the configuration options available to let you tailor your hardware to your needs. Most of these options require access to the main circuit boards inside the computer, and should be performed only by qualified technical personnel. Contact your VAR if you need assistance.
AM-6000 Service Manual Page 5 AM-319-20 Board Configuration Figure 5 shows the AM-319-20 board configured as shipped by Alpha Micro. There is only one userconfigurable jumper on this board: the JP7 Remote Reset jumper. All other jumpers should be left in their factory configured positions.
Page 6 AM-6000 Service Manual AM-176 Board Configuration Your AM-176 board has been factory tested and shipped with its configuration jumpers set in their standard default positions. Only two areas on the board may require you to change jumper settings: • Memory size select (JP4) • Enabling or disabling the supply of SCSI bus termination voltage (JP3)—default set at enabled. The AM-176 board is shown in Figure 6 with all of its jumpers in their default positions.
AM-6000 Service Manual Page 7 Remote Reset Capability The AM-319-20 board has an option to enable the computer's remote hardware reset. To enable remote reset, you must do two things: 1. Install the JP7 jumper, which is shown in the AM-319-20 illustration (Figure 5). The factory default is not installed. 2. Connect a push-button switch between pin-1 and pin-7 (signal ground) at the terminal end of the terminal cable attached to serial port 0 on the AM-319-20 board.
Page 8 AM-6000 Service Manual + RN12 U80 RN12 U80 + + + Figure 7: AM-319-20 Backup Battery Removal 4. Inspect the battery contacts and be sure they are clean before installing the new batteries. Use alcohol and a cotton swab to clean them, if necessary. 5. To install a new battery, insert the edge of the battery down through the square hole and under the left side of the plastic top. Be sure to install the new batteries with the (+) positive side up. 6.
AM-6000 Service Manual Page 9 WARNING! The SSD chip on the AM-319-20 and the boot PROM on the AM-176 board require a specialized tool for their removal. If you attempt to remove the SSD chip or boot PROM using a screwdriver or pocketknife, you could easily damage both the chip and the socket. This type of chip extraction tool is available at retail stores specializing in electronic components.
Page 10 AM-6000 Service Manual Installing the External Cache SIMM The external cache SIMM must only be installed in the J1 slot, labeled CACHE SIMM. Never install memory expansion SIMMs in J1, or the cache SIMM at any other location. To install the 64KB external cache SIMM (PDB-00701-00) on the AM-176 board: 1. Align pin-1 on the external cache SIMM module with pin-1 on connector at J1. Pin-1 on the SIMM module is on the notched end of the module (see Figure 9 below). 2.
AM-6000 Service Manual Page 11 The cache SIMM will engage the retainer clips and click into position, locking in place. When properly installed, the components on the cache SIMM module will be facing in toward the other memory SIMMs. Installing Memory SIMMs The AM-6000 supports a minimum of 8MB and a maximum of 512MB of main memory. Memory is implemented as paired SIMM modules (of equal capacity) of 4MB, 8MB, 16MB, 32MB, 64MB, or 128MB each. Use 60ns SIMMs only; 70ns SIMMs will not work.
Page 12 AM-6000 Service Manual To install memory expansion SIMMs on the AM-176 board, use this procedure: 1. Memory SIMMs must be installed in pairs of equal capacity. 2. Always install the SIMMs of largest capacity first. 3. Always install the first pair of SIMM modules at Bank0. Use Bank1 for a second pair of SIMM modules. 4. Insert the first SIMM in connector J2. Align pin-1 at the notched end of the SIMM module with pin-1 on the connector, as shown in Figure 9. 5.
AM-6000 Service Manual Page 13 Memory Module Size Combinations: Total Memory 2 x 4MB 4 x 4MB 2 x 8 MB 2 x 8MB + 2 x 4MB 4 x 8MB 2 x 16MB 2 x 16MB + 2 x 4MB 2 x 16MB + 2 x 8MB 4 x 16MB 2 x 32MB 2 x 32MB + 2 x 4MB 2 x 32MB + 2 x 8MB 2 x 32MB + 2 x 16MB 4 x 32MB 2 x 64MB 2 x 64MB + 2 x 4MB 2 x 64MB + 2 x 8MB 2 x 64MB + 2 x 16MB 2 x 64MB + 2 x 32MB 4 x 64MB 2 x 128MB 2 x 128MB + 2 x 32MB 2 x 128MB + 2 x 64MB 4 x 128MB 8MB 16MB 16 MB 24MB 32MB 32MB 40MB 48MB 64MB 64MB 72MB 80MB 96MB 128MB 128MB 136MB 144MB
Page 14 AM-6000 Service Manual PERIPHERAL MOUNTING (DESKSIDE CHASSIS VERSIONS) Your deskside computer cabinet can hold six half-height peripherals or three full-height 5.25" peripherals. Filler panels in the computer front panel can be removed to allow access to some of these peripherals. If you have six half-height peripherals, four of them can be accessed through the front panel; if you have three full-height peripherals, two of them can be accessed through the front panel. 3.
AM-6000 Service Manual Page 15 A peripheral is installed in the drive mounting bracket using four Phillips-head screws. To install the peripheral mounting screws, you need access to both sides of the peripheral mounting bracket. On one side of the cabinet, all six of the mounting positions are easily accessible. However, on the other side of the cabinet, the AM-319-20 board and its mounting bracket block access to all but the top two mounting positions.
Page 16 AM-6000 Service Manual Side Mounting Bracket Removal Next, you need to unfasten the AM-319-20 side mounting bracket from the deskside chassis. To do so: 1. Remove the two Phillips head screws that secure the AM-319-20's side mounting bracket to the chassis. Before you slide out the board and its mounting bracket, notice how the mounting bracket is positioned over the two alignment tabs on the bottom of the chassis.
AM-6000 Service Manual Page 17 3. There are a ribbon cable and a number of small wires extending between the front panel and the display connector on the AM-319-20. Do not disconnect any of these wires; the wires are long enough to allow you to lay down the AM-319-20 assembly on your work surface without having to disconnect them. 4. With the AM-319-20 assembly out of the way, you will be able to access both sides of the peripheral mounting bracket and have complete access to all six mounting positions.
Page 18 AM-6000 Service Manual PERIPHERAL MOUNTING (AM-990 AND JUMBO CHASSIS VERSIONS) Mounting peripheral devices in your computer is simply a matter of attaching plastic rails to the side of the peripheral and sliding the device into its mounting position. The AM-990 chassis has mounting locations for 12 half-height (or six full-height) 5.25" peripherals. The front door on the AM-990 chassis has a cutout which allows access to peripheral devices using removable media.
AM-6000 Service Manual Page 19 Plastic Mounting Rails The plastic mounting rails are the key to installing peripheral devices in your computer. Two rails are required to mount a peripheral device. The rails (DWF-20652-00) are universal; they can be mounted on either the right or left hand side of the peripheral.
Page 20 AM-6000 Service Manual X-Bus Cable Routing You do not need to move either the AM-176 or the AM-319-20 board to mount new peripherals, which means you won’t need to disconnect the X-Bus cables. However, if an X-Bus cable should come unplugged from either the AM-176 or the AM-319-20 board it is extremely important that the cables are plugged back in correctly.
