Agilent Technologies Agilent 35900E Manuale utente
Agilent 35900E Dual Channel Interface
Service Manual
35900E Dual Channel Interface
Agilent 35900E Service Manual
Agilent Technologies, Inc.
2850 Centerville Road
Wilmington, DE 1 808-1610
USA
© Agilent Technologies 1994–2000
All Rights Reserved. Reproduction,
adaptation, or translation without
permission is prohi ited, except as
allowed under the copyright laws.
Part num er 35900-90417
First Edition, MAY 2000
Replaces Part No. 35900-90410,
Operating and Service Manual.
HP® is a registered trademark of
Hewlett-Packard Co.
Printed in USA
Electrical Shock Hazard
WARNING
This product is a Safety Class 1
instrument (provided with a protective
earth terminal). To avoid electrical
shock, the instrument must e
connected to the AC power supply mains
through a three-conductor power cord,
with the third wire firmly connected to
an electrical ground (safety ground) at
the power outlet. Any interruption of the
protective (grounding) conductor or
disconnection of the protective earth
terminal, under a fault condition could
cause a shock, that could result in
personal injury.
Safety Sy bols
CAUTION
A caution calls attention to a condition
or possi le situation that could damage
or destroy the product or the user’s
work.
WARNING
A warning calls attention to a condition
or possi le situation that could cause
injury to the user.
Released: MAY 2000 Agilent 35900E Service Manual 4
Contents
Chapter 1: Introduction
Manual Overview ....................................................................................................... 6
Chapter 2:
Troubleshooting the 35900E
Verify the 35 00E is Ready for Operation .............................................................. 8
In Case of Difficulty .................................................................................................. 8
Possible Causes for Failure...............................................................................
Verify the System is Ready for Operation ..............................................................
Chapter 3: Parts Replacement
Overview .................................................................................................................. 11
Parts List for the 35 00E ................................................................................. 12
Remove/Replace the Top Cover ............................................................................ 13
Remove/Replace the Front Panel .......................................................................... 14
Remove/Replace the Power Supply ...................................................................... 15
Remove the MIO Bracket ....................................................................................... 15
Remove the Connector Board ............................................................................... 16
Remove/Replace the Mother Board ...................................................................... 16
Remove/Install the SIMM Memory Boards .......................................................... 17
Chapter : Instrument Parts Breakdown
Parts Breakdown—Figure 4 .................................................................................. 1
Parts Breakdown—Figure 5 .................................................................................. 21
Released: MAY 2000 Agilent 35900E Service Manual 5
1
Introduction
Introduction
Manual Overview
Released: MAY 2000 Agilent 35900E Service Manual 6
Introduction
The Agilent 35900E Dual Channel Interface Service Manual provides step-by-
step instructions for removing and replacing various parts in your 35 00E Dual
Channel Interface. Refer to Chapter 3: Parts Replacement for parts
identification.
For operating directions, see the Agilent 35900E Dual Channel Interface
Users Manual.
Caution The 35 00E contains parts that are sensitive to electrostatic discharge. Wear an
ESD wrist strap during all assembly and disassembly procedures.
Manual Overview
This manual contains four chapters.
Chapter 1: Introduction, provides the purposes of this manual and an
overview of its contents.
Chapter 2: Troubleshooting the 35900E, provides a troubleshooting
checklist, an explanation of the LEDs, and a recommendation for use of DEMO
chromatograms.
Chapter 3: Parts Replacement, provides a description of how to remove
each part from the 35 00E Dual Channel Interface.
Chapter : Instrument Parts Breakdown, provides part numbers and
illustrations of each part in the 35 00E Dual Channel Interface.
Released: MAY 2000 Agilent 35900E Service Manual 7
2
Troubleshooting the 35900E
Trou leshooting the 35900E
Verify the 35900E is Ready for Operation
Released: MAY 2000 Agilent 35900E Service Manual 8
Troubleshooting the 35900E
Verify the 35900E is Ready for Operation
At power up, the 35 00E automatically executes internal self-tests to determine
the amount of memory installed and to verify that the main power, system
memory, and the MIO communication interface, and other internal circuits are
operating properly. These tests take about 30 seconds for a 1-MByte system.
The FAULT light will blink ON/OFF during this time.
When the 35 00E has completed the internal self-tests, verify that:
1. the FAULT lamp is OFF
2. the POWER indicator is ON
3. no other indicators are blinking
In Case of Difficulty
If the 35 00E does not power up correctly, turn power off and check the
following:
1. Rear panel configuration switches 3 through 6 are DOWN (for normal
operation).
2. MIO card is correctly configured for host computer communications.
3. MIO card is connected to host computer or network.
4. Analog signal cables are connected.
5. Remote control cables are connected (if needed).
6. Digital I/O cables are connected (if needed).
7. Power cord is connected.
Trou leshooting the 35900E
Verify the Syste is Ready for Operation
Released: MAY 2000 Agilent 35900E Service Manual 9
If the problem persists after cycling the power, note the LED pattern on the
front panel display. Check the following table for possible causes for failure.
Table 1. Possible Causes for Failure
Verify the Syste is Ready for Operation
Once you have verified that the 35 00E is ready for operation, you can use the
test chromatogram stored in the 35 00E ROM in conjunction with the Host
computer software to check the operation of the entire system. The test
chromatogram is turned on via configuration switches 3 through 6 on the
35 00E’s back panel.
Condition Possible Causes
POWER light is OFF Power cord is disconnected or pro lem with the
power supply
FAULT light remains ON and COMM light is
flashing (note: other lights may also e flashing)
MIO card may e loose or there may e a
pro lem with the MIO card
FAULT light remains ON and Channel B NOT
READY light is ON
No SIMM module in the front slot or there may
e a pro lem with the SIMM module installed
FAULT light remains ON and Channel B RUN light
is ON
Pro lem found with SIMM module installed in the
rear slot
Released: MAY 2000 Agilent 35900E Service Manual 10
3
Parts Replace ent
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