GE HEALTHCARE - KRETZTECHNIK VOLUSON® 730EXPERT (BT03)
D
IRECTION 105899, REVISION 3 DRAFT (APRIL 29, 2008) SERVICE MANUAL
5-44 Section 5-11 - Power Distribution
5-11-2-3 Fuses on Rear Panel (CPN80-81)
F1 + F2: The main Input voltage is fused by two 16 Ampere fuses (rated current 16A) labeled F1 and F2.
F3: The AC Output voltage (115/230V) is fused by either:
• a 1.6 Ampere / 250V fuse for auxiliary output voltage 230 VAC
• a 3.2 Ampere / 250V fuse for auxiliary output voltage 115 VAC
F4: 16 Ampere fuse for the input voltage for the switching power supply generating the DC-Supply
voltage for the Secondary power supply inside GEF-Module
5-11-2-4 Fuses inside CPN80-81
F1 on CCF board: fuses the surge current limiter circuit.
NOTE: If this fuse is blown, the NTC (limiting the surge current will remain hot during system operation and if
the system is switched off/on within a few seconds the surge current could be to high.
Because of this reason Fuse F1 on CPN Rear Panel or the Hospital circuit fuse could be blown.
5-11-3 Disk Drive Module (GEM)
The check points for the drives voltages can be found at the AUX Supply connector (= GEM Power
connector) on Backpanel of GEF-Box; see: Section 7-3 "Check Points Voltages" on page 7-4.
• MO drive is supplied by +5V only
• DVD/CD drive is supplied by both +5V and +12 V
• Fan on the GEM module needs only 12 V power.
5-11-3-1 Fuses on CPE-Board for Disk Drive Module (GEM)
Description of fuses: 5A / 250V / slow-blow fuse / 5 x 20 mm
Figure 5-27 Fuses of CPN80-81
Figure 5-28 fuses for disk drives
F1
F2
+12V
+5V
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