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

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

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

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

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