GE CT ProSpeed Series, Installation Manual

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GE MEDICAL SYSTEMS CT PROSPEED SERIES INSTALLATION
2124011
3-23
REV 15
3–5 MOD INSTALLATION
Note
This section applies to Qj Type or Qj–b Type OC.
Note
SCSI Board Jumber/Dip swtich setting and OC Back board Setting should have been performed be-
fore shipment. (They can be referred to CD–ROM, Functional Check/Adjustment, Board/Device
Jumper/Switch setting, Operator Console, Back Board or Circuit Boards in Nest Chassis.)
3–5–1 Installation
Cable Connection
1. Turn OFF the OC power, then remove the OC front, rear and top covers (including rear inner cover over back-
plane).
2. Connect MOD Power, signal, and GND cables to the OC.
This procedure must be performed when connecting system or ground cables. Refer to Section 4–2–3 OC Cable
Connection of this manual.
DC Power Check and Custom Parameter Setting
3. Switch ON the OC power and MOD Drive Unit power, and verify that the R/W indicator is flashing ON and OFF.
4. Measure the +5VDC by connecting a DVM to the pins of the Tantalum capacitor terminals on the IPU Assy (or
IPU2 Assy; slot 2). See Illustration 3–18. Then adjust the voltage between +5.0VDC and +5.1VDC with a trim-
mer adjuster/tweaker (small slotted screw driver). See Illustration 3–19.
10
m
F Cap.
Connect the DVM across
the capacitor’s terminals.
IPU (OR IPU2) TANTALUM CAPACITOR LOCATION
ILLUSTRATION 3–18