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Copyright reserved.
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Dräger Medical AG & Co. KGaA
6173.3
Function description
Babylog 8000
10.8
Front Controller PCB
(Babylog 8000/Babylog 8000 SC with LC Display)
The Front Controller PCB reads in the keys of the potentiometer and display field, controls the LEDs of
the potentiometer and display field, powers the LC display with operating voltage (contrast), controls the
LC display backlight, and generates the control signal for the bargraph.
Fig. 22:
Block diagram of the Front Controller PCB (Babylog 8000/8000 SC with LC display)
D
A
DC
AC
Contrast adjustment of LC display
LC display
voltage for
display illumination
key port
LED driver
Amplifier
Bargraph
Keys of the front panel and options switches
LEDs of the front panel
Alarm LEDs
Bargraph of the front panel
U
Ref
A
D
6x
Adress
decoder
Potentiometer of the front panel
U
B
Data bus
Control bus
and
Adress bus
T
est A/D con
v
e
rter
Содержание Babylog 8000SC
Страница 9: ...7 General...
Страница 10: ...8...
Страница 13: ...11 Function Description...
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Страница 59: ...57 Replacing Non Repairable Items...
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Страница 77: ...75 Schematics and diagrams...
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Страница 91: ...89 Error List...
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Страница 99: ...97 Annex Spare parts list Test List Technical Information according to EMC standard IEC EN 60601 1 2 2001...
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Страница 101: ...Spare parts catalogue Babylog 8000 Because you care Emergency Care OR Anesthesia Critical Care Perinatal Care Home Care...
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