Acquisition Pc; Tower Acquisition Pc; Tune Board; Power Board - Philips CARDIOMD Service Manual

Figure 3.24 Schematic of the Y-board
3.3.6.4

Tune Board

The tune board carries three octal 10-bit DAC's. On the basis of the tuning tables, the DAC's
provide the reference voltages for the autotune circuits in the 24 PMT's and the control voltages
for the DynCor and threshold multipliers.
The tune board also carries a 24-to-one multiplexer and a D/A converter, enabling digital read-out
from the working points in the 24 PMT's.
3.3.6.5

Power Board

The power board distributes high and low voltages to the six PMT interconnecting strips. It also
carries driver circuits for the autotune.

3.4 Acquisition PC

3.4.1

Tower Acquisition PC

The acquisition PC of CardoMD Series I and II systems is a tower PC with the following
I, II
minimum specifications:
IBM compatible, 550 MHz, ATX, 512 kb CPU RAM, 128 Mb SDRAM PC100, 15 Gb Hard Disk,
3.5" Floppy drive, 40x speed CD-ROM drive, 16 Mb Graphics (Matrox G400), and EtherNet
adapter (3COM XL PCI 10/100BTX).
The PC has an IEEE 1394 FireWire interface.
The PC software operates under Microsoft Windows 2000.
Newer PC's are equipped with a CD R/W drive. The CD R/W drive can be used for backing up
calibration data and user-defined acquisition protocols.
1MAN0158-H11 04-2005 CSIP Level 1
DYN THRES
COR HOLD
DYN THRES
COR HOLD
DYN THRES
COR HOLD
DYN THRES
COR HOLD
DYN THRES
COR HOLD
Y+ Y-
Detailed Description
CardioMD Service Manual 3-31