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ELECTRONICS
PV 101+/PV 102+ Service Manual
7–6
BREAS MEDICAL
Doc. No. 003259 En
Issue: X-1
7.4
Circuit board descriptions
This section contains detailed descriptions and figures of the PV 101+/PV 102+’s circuit
boards.
7.4.1
CPU board
All the push-buttons are mounted on the CPU board together with the LEDs and the
three bar-graphs for pressure display. Also mounted here is the four 7-segment displays
for the rise time and backup rate displays (PV 102+).
The microprocessor with its software is also located here, as well as an internal memory
(DALLAS) for the logging and storage of the patient usage data.
Refer also to the circuit diagrams (See section 7.6.1, 7.6.2, 7.6.3, 7.6.4 and 7.6.5) and
component location drawings (See section 7.7.1).
7.4.2
Power board
The power supply unit is fed primarily with mains power via the mains power inlet to the
internal AC/DC converter. Secondly, the power board can be fed with 12–24 DC via the
external battery input.
Refer also to the circuit diagrams (See section 7.6.6 and 7.6.7) and component location
drawings (See section 7.7.2 and 7.7.3).
The power supply has mains power as soon as the power cord is con-
nected.
Summary of Contents for PV 101+
Page 76: ...FAULT TRACING PV 101 PV 102 Service Manual 8 2 BREAS MEDICAL Doc No 003259 En Issue X 1...
Page 78: ...9 2 BREAS MEDICAL Doc No 003259 En Issue X 1 APPENDICES PV 101 PV 102 Service Manual...
Page 82: ...9 6 BREAS MEDICAL Doc No 003259 En Issue X 1 APPENDICES PV 101 PV 102 Service Manual...
Page 87: ...BREAS MEDICAL 10 PV 101 OPERATING MANUAL...
Page 88: ...BREAS MEDICAL...
Page 89: ...BREAS MEDICAL 11 PV 102 OPERATING MANUAL...
Page 90: ...BREAS MEDICAL...