OEC COMPACT 7600 Series, Блок-схемы

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For Reference Only
INTERFACE SIGNALS
3/7/97 INTERFAC.DS4
XRAY TUBE HEAD TO CONTROL ELECTRONICS
COMPACT / SERIES 7600
KV GND
KVSOLL
(Desired KV)
-GERR
(Fault)
-XRAY
(Xray On)
MAIST
(Actual Fluoro mA)
-DA
(Film Mode Prep, active 1 second prior to film shot)
-QMA05
(0.5mA mode)
+12VDC
(For Iris Pot)
0V
(For Iris Pot)
POTIM
(Iris Pot Wiper)
-MIBA
(Iris Open)
-MIBZ
(Iris Close)
-SBZU
(Slot Collimator Shutter Close)
-SBAUF
(Slot Collimator Shutter Open)
-SBCCW
( Slot Collimator Rotate CCW)
-SBCW
(Slot Collimator Rotate CW)
FILTER BOARD
XRAY HEAD TUBE
ASSEMBLY
B100 BOARD
B143 BOARD
B79 BOARD
X3
ST4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
X2
X1
X3
X3
GND
+16VDC
UH
(Filament Voltage)
HV SUPPLY
Aprox 265VDC - Film Mode, Hip Mode, Snapshot Mode
Aprox 165VDC - Standard Fluoro Mode, Chest Mode, Hand Mode
Aprox 125VDC - >62 Degrees C, Fluoro Mode
See kV Generation & Regulation Diagram
Starts Xray generation,
See Film, Series Fluoro or Compact Fluoro
Control Logic Diagrams
See mA Generation & Regulation Diagram
Limits fluoro mA to 0.5mA when temperture
is > 62 degrees C, see mA Generation &
Regulation Diagram. Disables film mode,
see Film Mode Control Logic Diagram
See Iris Collimator Control Diagram
Series or Compact
See Shutter Collimator Control Diagram
See mA Generation & Regulation Diagram
2
1
4
4
1
2
3
2
See kV Generation & Regulation Diagram
1
1
ERROR CONDITIONS
This signal goes true with one of the following
conditions, preventing exposure.
1. Temperature >70 degrees C (Temp Sensor & B43)
2. UH (Filament Voltage) is too low (0 - 5 VDC)
(B143, B40 & B43)
To determine if you have a "Over Temperature or
"Low Filament Voltage" fault, monitor U2 pins 2 & 3
on the B43 board as follows:
U2-3 logic Low = Over Temperature Fault
U2-2 logic Low = Low Filament Voltage
See the following diagrams for more GERR details:
1. Fluoro Mode Control Logic
2. Film Mode Control Logic
3. mA Generation & Regulation
See Film Mode Control Logic Diagram
ST2
CONTROL PANEL
16V
-GERR
(Fault)
1
ST1
15
Temp / Error Indicator
15
Typical 10 - 21 VDC
0 - 5 VDC will cause a GERR Fault
>21 VDC will disable Xray generation on the B143 Pcb
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
2
7
7
7
7
8
8
8
NOTES:
Used and Refurbished C-Arms are Available from www.SharpMedical.com - Call us at 800-969-9800
An Independent C-Arm Service Provider. This PDF provided for research / historical purposes only.