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The DRE COMPUTER includes:
MOTHERBOARD (Single Board COMPUTER)----The MOTHERBOARD, together with a HARD DISK
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and MAIN MEMORY, formats the images from the MODALITY before they are sent to the MCS for
printing. The images are received on the PCI Bus of the MOTHERBOARD from the customer network
via the DICOM message exchange protocol. The MOTHERBOARD formats the images in MEMORY
and on the HARD DISK DRIVE, then returns them on the PCI Bus to the output circuits of the PCIO
BOARD for transmission to the MCS. (See paragraph 6-2-1.)
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The MOTHERBOARD CPU is a 1.2 GHz Intel Celeron.
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The MOTHERBOARD works with 256 MB of RAM and an 80 GB HARD DISK.
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The MOTHERBOARD has 2 Serial ports. (COM1 is not used. COM2 is used for control of the
LOCAL PANEL TOUCH SCREEN. )
MAIN MEMORY----256 MB of SDRAM are contained in 2 DIMM modules which plug into sockets on
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the MOTHERBOARD. In these memory modules the images received from the MODALITY are
rotated, scaled to desired size and then transferred to the HARD DISK for further formatting. When a
print request is received, the images are sent from DISK back to MAIN MEMORY, where they are
further processed and rasterized for scan-line by scan-line transfer to the PCIO BOARD and the MCS.
PCIO BOARD----This BOARD, which plugs into the PCI Bus of the MOTHERBOARD, accepts the
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formatted and rendered images from the PCI Bus and sends them to the MCS on a parallel interface.
(See paragraph 6-2-2 for more details.) The BOARD is identical to that used in the 8100 and 8200
IMAGERS.
PCI 10/100 Base T Ethernet CARD----This BOARD provides access to the DRE for the LAPTOP
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COMPUTER of the FE.
AGP LOCAL PANEL TRANSMITTER BOARD----This color graphics BOARD drives the LCD
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CONTROLLER in the LOCAL PANEL.
HARD DISK DRIVE----This 80 GB IDE DRIVE contains the software that controls image processing. It
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also provides storage for acquired images before they are sent to MAIN MEMORY for final processing
immediately before printing.
CD-ROM DRIVE----This DRIVE has a capacity of 650 MB and an IDE interface. It is used to upgrade
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system software.
FLOPPY DRIVE----This 3.5 inch, 1.44 MB FLOPPY DRIVE is used to back up and restore the system
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configuration and to download files for service examination.
DC POWER SUPPLY----This SUPPLY receives 120 VAC input power from the MCS POWER
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MODULE, and provides the following DC outputs for operation of the DRE and LOCAL PANEL: +3.3,
¦5, and¦12 VDC.
6-2-1-2.
LOCAL PANEL
The LOCAL PANEL, which connects by cable to the LOCAL PANEL TRANSMITTER BOARD in the DRE,
contains:
An LCD DISPLAY
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A TOUCH SCREEN
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A RECEIVER BOARD which includes a BACKLIGHT INVERTER and a SPEAKER.
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2005 July Rev. B
7F3318
Section 6 - - Theory of Operation
6-3
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Troubleshooting
