Page 4.4
SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue d May 2002
Chapter 4
Module Removal and Replacement
Safety Notices
WARNINGS
BEFORE COMMENCING ANY REMOVAL OR REPLACEMENT PROCEDURES ENSURE
THAT THE MAINS POWER SUPPLY IS SWITCHED OFF AND THAT THE MAINS CABLE
IS REMOVED.
CERTAIN CHECKS AND ADJUSTMENTS CAN ONLY BE CARRIED OUT WITH THE
TOP ASSEMBLY REMOVED AND WITH MAINS CONNECTED. WHEN CARRYING OUT
THESE PROCEDURES BEWARE THAT POTENTIALLY LETHAL VOLTAGES ARE
PRESENT.
CAUTIONS
THE AT-2PLUS CONTAINS STATIC SENSITIVE CMOS COMPONENTS; OBSERVE
ANTISTATIC PRECAUTIONS:
WHEN CARRYING OUT ANY MAINTENANCE PROCEDURES ALWAYS PLACE THE
UNIT ON AN EARTHED ANTISTATIC MAT.
PERSONNEL MUST BE EARTHED WHEN HANDLING ANY BOARDS OR
COMPONENTS
ALWAYS USE AN ANTISTATIC BAG WHEN TRANSPORTING BOARDS OR
COMPONENTS
THE UNIT IS SUSCEPTIBLE TO ABRASION DAMAGE. TO PREVENT SCRATCHING,
ALWAYS PLACE THE UNIT ON A SOFT, NON-ABRASIVE CLOTH WHEN CARRYING
OUT MAINTENANCE PROCEDURES.
TAKE CARE NOT TO PLACE ANY STRAIN ON THE CONNECTING RIBBON CABLE
WHEN REMOVING THE TOP ASSEMBLY . ENSURE THAT THE CABLE ASSEMBLY
IS NOT CRIMPED OR TWISTED AND THAT THE TOP ASSEMBLY IS NOT PLACED
ON THE CABLE ASSEMBLY.
CARE MUST BE TAKEN WHEN REMOVING AND REPLACING CONNECTORS. NEVER
USE FORCE. NEVER STRAIN THE CABLE ASSEMBLIES.
THE PROCEDURAL STEPS GIVEN FOR EACH MODULE MUST BE FOLLOWED IN THE
ORDER GIVEN.
