4/Service
4-1
4-1
6600 0341 000
08/15/99
4/Service
In this section
In this section ............................................................................................................... 4-1
Repair policy and procedure ........................................................................................ 4-1
Troubleshooting ........................................................................................................... 4-2
Functional description .................................................................................................. 4-3
Repair procedures ....................................................................................................... 4-4
Replacing a fuse ................................................................................................. 4-5
Replacing the light source cover ......................................................................... 4-6
Replacing the PC board ...................................................................................... 4-6
Replacing the cooling fan .................................................................................... 4-6
Replacing the brightness control ......................................................................... 4-7
Replacing the power supply ................................................................................ 4-7
Replacing the thermal cutout switch ................................................................... 4-8
Replacing the optical filter assembly ................................................................... 4-8
Replacing the bulb holder ................................................................................... 4-9
Replacing the power inlet module ....................................................................... 4-9
Replacing a bezel/hour meter ........................................................................... 4-10
Replacing a front bezel label ............................................................................. 4-10
Electrical safety procedures .......................................................................................4-11
Ground continuity ..............................................................................................4-11
Leakage current ................................................................................................ 4-11
Light Output Measurement ........................................................................................ 4-11
Illustrated service parts ..............................................................................................4-13
Schematics ................................................................................................................4-17
Repair policy and procedure
Do not use malfunctioning equipment. Perform the appropriate repair procedure deter-
mined by the equipment warranty status and normal service procedures of your facility.
WARNING
w
Service described in this manual must be performed by a technically competent
individual as described in this manual. Detailed drawings and procedures for more
extensive repairs are included in this manual solely for the convenience of qualified
personnel having proper knowledge, tools and test equipment, or for Ohmeda service
representatives.
In-Warranty
Repair and service of equipment under warranty should be performed at the Ohmeda
Service Repair Center. Service performed or attempted by unauthorized personnel may
void the warranty. Refer to the warranty statement for further details.
Out-of-Warranty
To promote full reliability, have all repairs and service performed by Ohmeda Service
Repair Center. If this is not possible, replacement and maintenance of those parts
listed in this manual may be undertaken by trained and competent personnel having
experience in the repair of devices of this nature. To ensure performance to factory
specifications, it is recommended that all replacement parts be those either manufac-
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