Shimadzu SPD-M20A User Manual

Chapter 1: Introduction
SPD-M20A Service Manual
5
Chapter 1: Introduction
<Scope of the Service Manual>
This service manual describes maintenance procedures for the SPD-M20A photodiode
array detector used in Shimadzu liquid chromatographs. The content of the service
manual includes information concerning its operating principles and construction, a
description of its control circuits and methods for testing its function and performance, and
is compiled in a way that is easy to utilize by service personnel.
Although there are sections that repeat parts of the instruction manual, no details are
provided concerning installation or operation of the instrument. Appropriate maintenance
of the instrument is to be carried out using the instruction manual in conjunction as
necessary.
In addition, cautionary sections concerning safety are to be strictly observed in order to
prevent accidents.
Necessary documentation is attached at the end in the form of an appendix. This
appendix is to be used when performing maintenance procedures.
<Disclaimer>
Due to modifications of the product, parts in the actual instrument or circuits thereof may
be different from those presented in the service manual. In addition, note that service
parts may not be available for all of the parts indicated in the exploded diagrams and part
lists.
<History>
No.
Chapter
Page
The contents of change
Revision A :3/Aug/2005
1
Cover
-
A is added to P/N.
2
6.3
Procedure 3), 9) deletion
3
6.4
"Install" is deleted from Procedure 1.
Revision B : 26/Dec/2005
1
6.9
The clause of "PDA utility service menu" is
added to Chapter 6.9. It follows on this addition
and is a subsequent clause number change.
Revision C : 9/Sep/2008
1
An addition of an error message
7.1.1 Identifying Problem Site from Error
Message
2
6.10.5,6.10.8,6.10.9
,6.10.10,
6.10.11,6.10.11.1,6.
10.11.2
Deleted inspection items not required for repair.
3
6.10.7
Added “6.10.7 Linearity Correction (Stray Light
Correction) and Check”
Revision F:2/July/2010 Updated from Revision C to Revision F in order to match the
revision code to the Japanese version.
1
6.10.6
Procedures for absorbance linearity calibration
(stray light correction) and check were added.
2
Items performed under factory conditions (listed
below) were deleted.
6.10.8 Stabilization Time and Drift (Dummy Cell)

Shimadzu SPD-M20A Specifications

General

Brand	Shimadzu
Model	SPD-M20A
Category	Security Sensors
Language	English