Philips M1351A Bedienungsanleitung Seite 69

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 189
  • Inhaltsverzeichnis
  • FEHLERBEHEBUNG
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 68
Recorder Interface Board (M1353-66510)
Chapter 6 Theory of Operation 59
Recorder Interface Board (M1353-66510)
The Recorder Board provides the interfaces to the recorder and the display. The recorder
interface consists of:
The parallel/serial converter for the thermal array data.
A heating timer to control the heating pulse for the thermal array. The voltage from a
thermistor on the thermal array is A/D converted and the CPU programs the heating
timer with a value which compensates the ambient temperature.
The recorder sensing hardware consists of a reflective light sensor that detects the black
marks on the paper and paper out. A battery supervisor circuitry checks for valid
battery voltages, and this is read by the CPU Board. The display interface uses the
same parallel/serial converter as the recorder. The board also contains test hardware
which is not shown in the diagram.
+24V is blocked by capacitor and supplied to the thermal printhead.
apegblk3
Seitenansicht 68
1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 188 189

Kommentare zu diesen Handbüchern

Keine Kommentare