Introduction - Schiller AT-102 Service Handbook

Introduction

This chapter provides a functional overview of the AT-102 electronics. The aim of this
overview is to enable the service engineer to identify processing paths in order to help
identify possible faulty modules. A functional block diagram supports the text.
Most of the electronics are mounted on a single main board which is housed in the base of
the two part AT-102 casing.
The main functional areas of the AT-102 are as follows:
On the Main Board:
CPU (68332)
Opto isolated and shielded ECG multiplexer with isolated power supply and patient
interface
Power Supply
Flash EPROM (electrically erasable) 16 Megabytes
In the top assembly
Keyboard
TFT screen
In the base assembly:
Thermal Printer
Paper tray drive motor
Battery
2.2
AT-102 Service Handbook