Schiller AT-102 Service Handbook page 6

SCHILLER
Section 2 Functional Overview ........................... 2.1
Introduction .................................................................................. 2.2
MK 18 - 1 Main Board ................................................................... 2.4
Power Supply ..............................................................................................2.4
Program and ECG Memory ........................................................................2.4
Thermal Print Head Controller ...................................................................2.4
Printer Timing ..............................................................................................2.5
Paper Mark ..................................................................................................2.5
Power On Reset ..........................................................................................2.5
Stepper Motor Controller ...........................................................................2.5
ECG Isolated Power Supplies ...................................................................2.5
ECG Signal ..................................................................................................2.6
Noise Damping ...........................................................................................2.6
RS-232 Interface ..........................................................................................2.6
External Modem ..........................................................................................2.6
Top Assembly .............................................................................. 2.7
LCD Screen .................................................................................................2.7
Alphanumerical Keyboard .........................................................................2.7
Section 3 Fault Finding ....................................... 3.1
Introduction .................................................................................. 3.2
General Check Procedures........................................................................3.2
Fault Finding Chart ....................................................................... 3.3
AT-102 Initial Fault Diagnosis Chart (Sheet 1) ..........................................3.3
AT-102 Initial Fault Diagnosis Chart (Sheet 2) ..........................................3.4
AT-102 Fault Diagnosis Chart (Sheet A - Power Problems) .....................3.5
AT-102 Fault Diagnosis Chart (Sheet B - Power Problems) ....................3.6
AT-102 Fault Diagnosis Chart (Sheet C - General Problems) ..................3.7
AT-102 Fault Diagnosis Chart (Sheet D - Printer Problems)....................3.8
AT-102 Fault Diagnosis Chart (Sheet F - Exercise Mode Problems) ......3.9
AT-102 Fault Diagnosis Chart (Sheet G - Spirometry Problems) ......... 3.10
AT-102 Fault Diagnosis Chart (Sheet H - Communication
(RS) Problems) .......................................................................................... 3.11
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AT-102 ECG Recorder Service Handbook