13900-103 Rev. A Page 33
Repairs
Introduction
This section contains the repair procedures.
Names given to parts are the same parts as referenced in
the AT550 Parts Manual (P/N 13900-102).
Perform all steps in Disassembly before performing any of
the following repair procedures unless otherwise
instructed.
After the necessary repairs are completed, perform all
steps in the Assembly section of this manual unless
otherwise instructed.
Special Tools & Equipment
None Required
Warnings & Cautions
CAUTION: THE INTERNAL CIRCUITS OF THIS INSTRUMENT
HAVE ELECTROSTATIC DISCHARGE SENSITIVE
DEVICES (ESDS) AND ARE SENSITIVE TO STATIC
HIGH VOLTAGES STORED IN AND TRANSFERRED
BY THE HUMAN BODY. OBSERVE C1`ORRECT
ESDS PRECAUTIONS OR PREMATURE MALFUNC-
TION OF THIS INSTRUMENT WILL OCCUR.
CAUTION: ANY REPAIR OR SERVICE TO THE THIS UNIT
MUST BE PERFORMED BY DEALERS WHICH ARE
TRAINED BY REICHERT OPHTHALMIC INSTRU-
MENTS SO THAT CORRECT MEASUREMENT OF
THIS UNIT IS MAINTAINED.
CAUTION: THE POWER CABLE TO THE LCD DISPLAY
CONTAINS VERY HIGH VOLTAGE. DISCONNECT
THE INPUT POWER TO THE INSTRUMENT BEFORE
DISASSEMBLY OF THE UNIT OR SERIOUS
PHYSICAL INJURY MAY OCCUR IF THE HIGH
VOLTAGE CONNECTIONS ARE TOUCHED WHILE
THE UNIT IS OPERATING.
CAUTION: DO NOT USE SOLVENTS OR STRONG CLEANING
SOLUTIONS ON ANY PART OF THIS INSTRU-
MENT OR DAMAGE MAY OCCUR.
List of Repairs
Repair 1 Nosepiece Cover Replacement
Repair 2 Printer Door Latch Replacement
Repair 3 Printer Replacement
Repair 4 Power I/O Circuit Board Replacement
Repair 5 Control Circuit Board Replacement
Repair 6 LCD Sdcreen Replacement
Repair 7 Motor Circuit Board Replacement
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