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Agilent Technologies, Inc.
2850 Centerville Road
Wilmington, DE 19808-1610
USA

© Agilent Technologies 1994–2000

All Rights Reserved. Reproduction, 
adaptation, or translation without 
permission is prohibited, except as 
allowed under the copyright laws.

Part number 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 be 
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 Symbols

CAUTION
A caution calls attention to a condition 
or possible situation that could damage 
or destroy the product or the user’s 
work.

WARNING
A warning calls attention to a condition 
or possible situation that could cause 
injury to the user.

Summary of Contents for Agilent 35900E

Page 1: ...Agilent 35900E Dual Channel Interface Service Manual ...

Page 2: ...35900E Dual Channel Interface Agilent 35900E Service Manual ...

Page 3: ...ded with a protective earth terminal To avoid electrical shock the instrument must be 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 ...

Page 4: ...erify the System is Ready for Operation 9 Chapter 3 Parts Replacement Overview 11 Parts List for the 35900E 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 4 Instrument Parts Breakdown Parts Breakdown Fig...

Page 5: ...Released MAY 2000 Agilent 35900E Service Manual 5 1 Introduction ...

Page 6: ...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 chromat...

Page 7: ...Released MAY 2000 Agilent 35900E Service Manual 7 2 Troubleshooting the 35900E ...

Page 8: ... MByte system The FAULT light will blink ON OFF during this time When the 35900E 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 35900E 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...

Page 9: ...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 35900E s back panel Condition Possible Causes POWER light is OFF Power cord is disconnected or problem with the power supply FAULT light remains ON and COMM light is flashing note other lights may also be flashing MIO card may be loose or there may...

Page 10: ...Released MAY 2000 Agilent 35900E Service Manual 10 3 Parts Replacement ...

Page 11: ...s been designed for easy assembly and disassembly of all the replaceable modules The only tool needed for this process is a Pozidriv screwdriver No 2 Pt Part No 8710 0900 All electronic assemblies and parts should be handled with proper ESD procedures This means that the parts should be packed in conductive packaging material and when not in this packaging should be placed only on a static free su...

Page 12: ... 00160 MIO Bracket 35900 00180 Top Cover 35900 00190 Chassis 35900 60890 Front Panel Front Cover G1279 60010 Mother Board G1279 69010 Exchange Mother Board G1279 60020 Connector Board G1241 60010 MIO Card GPIB RS 232 J2552 69013 MIO Card JetDirect Card J4100 69001 MIO Card JetDirect Card 10 100 10Base2 Assorted Screws 0515 1040 Screw M4 x 8 Pozidriv panhead SS with external tooth lockwasher 2360 0...

Page 13: ...gerous electrical shock 3 Remove any cables attached to the rear panel 4 Remove the two screws attaching the cover to the rear panel See Figure 1 and part A of Figure 4 5 Lift up the back of the cover and slide the lip of the cover over the frame slipping the front tabs under the front panel edge 6 When you are ready to replace the cover fit the cover over the frame slipping the front tabs under t...

Page 14: ...d from the frame 5 Remove the ground wire connection green wire from the ground clip by pulling it firmly 6 When you are ready to replace the front panel reattach the green ground wire to the ground clip on the chassis 7 Fit the bottom lip of the front panel under the lip of the frame and push it against the frame fitting the power switch into the hole 8 Connect the front panel cable to the connec...

Page 15: ...remove it from the frame 5 When you are ready to replace the power supply fit the new power supply over the hooked tabs and press it against the frame 6 Reattach the power supply to the frame by replacing the holding screw on the right side of the unit 7 Reconnect the power supply cable to the white connector Push the connector down firmly until the locking ridge fits over the back of the connecto...

Page 16: ...See page 13 2 Remove the front panel See page 14 3 Remove the MIO bracket and connector board See page 15 and 16 4 Disconnect the power supply cable See page 15 5 Remove the two screws attaching the mother board to the back of the unit See Figure 5 6 Slide the mother board out the front of the unit See part 4 in Figure 5 7 When you are ready to replace the mother board slide the new mother board i...

Page 17: ... front of the unit If using two SIMM boards the front slot must be empty in order to install a SIMM in the rear slot Therefore when using two SIMM boards install the rear SIMM first and then the front one 5 Seat the SIMM memory board in the slot so that the posts are aligned with the holes in the upper corners of the board and the memory chips mounted on the SIMM board face the rear of the unit Th...

Page 18: ...Released MAY 2000 Agilent 35900E Service Manual 18 4 Instrument Parts Breakdown ...

Page 19: ...Cover 35900 00180 1 2 MIO Card GPIB RS 232 Gl241 60010 1 3 MIO Bracket 35900 00160 1 4 Power Supply 0950 2557 1 5 Front Panel Front Cover 35900 60890 1 6 MIO Card Guides 0403 0166 2 7 Chassis 35900 00190 1 Assorted Screws A Screws M4 x 8 Pozidriv panhead SS with external tooth lockwasher 0515 1040 6 B Screw 6 32 UNC 2A 375 inch long Pozidriv panhead with external tooth lockwasher 2360 0544 1 ...

Page 20: ...t Parts Breakdown Parts Breakdown Figure 4 Released MAY 2000 Agilent 35900E Service Manual 20 Figure 4 1 3 6 A A 5 A A 2 4 7 B A Ground Clip Power supply Cable Ground Wire Front Panel Connector Front Panel Cable ...

Page 21: ... No Qty 1 Power Supply 0950 2557 1 2 MIO Bracket 35900 00160 1 3 Connector Board G1279 60020 1 4 Mother Board G1279 60010 1 Exchange G1279 69010 5 SIMM Memory Board 1 MB 1818 4271 1 SIMM Memory Board 4 MB optional 1818 5222 2 6 Mother Board Guides 0403 0102 2 Assorted Screws A Screws M4 x 8 Pozidriv panhead SS with external tooth lockwasher 0515 1040 7 ...

Page 22: ...Parts Breakdown Figure 5 Released MAY 2000 Agilent 35900E Service Manual 22 Figure 5 Power Supply Cable A 2 3 A 5 4 Locking Metal Tabs Front Panel Connector Power Supply Connector Locking Ridge 1 A A 6 Power Supply Mounting Tabs ...

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