2-8
MAC
1200 resting ECG analysis system
Revision D
2012250-095
Functional Description: PCB Control CS_CI
Switch On/Off Circuit
The Switch On/Off circuit consists of the On/Off control and the Voltage control.
The On/Off control switches the device on or off by switching the device supplies
+UVERS and +USUPPSW. The On/Off control is supplied from the +5 VSTB.
Device On Sequence
The transition from device Off state, or Standby state when line power is connected,
to device On state can only be activated by pressing the On/Off button.
Device Off Sequence
The transition from device On state to device Off state or Standby state when line
power is connected can be achieved as follows.
Pressing the On/Off button.
When the control core activates the signal
DEV_OFF
.
When the voltage control applies the signal
REG_OFF_
, because the battery
voltage gets too low during battery operation.
The
Voltage Control
controls the battery voltage during battery operation.
The signal
BATT_LEV2
indicates that the battery charge has gone down, and the
device should be connected to the line power soon.
The signal
BAT_LEV1
indicates that the battery has been discharged almost
completely, the device should be connected to the line power immediately,
otherwise the device will shut down within few minutes.
If battery discharge is continued without connecting to the line power, the signal
REG_OFF_
is activated and the device is switched off.
Summary of Contents for MAC 1200
Page 10: ...vi MAC 1200 resting ECG analysis system Revision D 2012250 095 ...
Page 11: ...Revision D MAC 1200 resting ECG analysis system 1 1 2012250 095 1 The Basics ...
Page 12: ...1 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 19: ...Revision D MAC 1200 resting ECG analysis system 2 1 2012250 095 2 Functional Description ...
Page 20: ...2 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 45: ...Revision D MAC 1200 resting ECG analysis system 3 1 2012250 095 3 System Test Function ...
Page 46: ...3 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 69: ...Revision D MAC 1200 resting ECG analysis system 4 1 2012250 095 4 Repair Instructions ...
Page 70: ...4 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 79: ...Revision D MAC 1200 resting ECG analysis system 5 1 2012250 095 5 Troubleshooting ...
Page 80: ...5 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 85: ...Revision D MAC 1200 resting ECG analysis system 6 1 2012250 095 6 Adjustment Instructions ...
Page 86: ...6 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 89: ...Revision D MAC 1200 resting ECG analysis system 7 1 2012250 095 7 Service and Maintenance ...
Page 90: ...7 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 101: ...Revision D MAC 1200 resting ECG analysis system 8 1 2012250 095 8 Parts List ...
Page 102: ...8 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 111: ...Revision D MAC 1200 resting ECG analysis system 9 1 2012250 095 9 Specifications ...
Page 112: ...9 2 MAC 1200 resting ECG analysis system Revision D 2012250 095 For your notes ...
Page 123: ...Revision D MAC 1200 resting ECG analysis system 10 1 2012250 095 10 Drawings ...
Page 150: ......