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Installation Note E4400-90388

Removing Transistor Q501 and the CPU/Motherboard

1. Refer to Figure 6. The transistor, Q501, is located on the CPU/Motherboard (A14). Remove the

screw (item 1) securing the CPU/Motherboard to the signal generator chassis.

2. Remove the Q501 transistor screw (item 2). An insulated bushing is between the CPU/Motherboard

and the signal generator chassis.

3. Remove the old CPU/Motherboard.

Figure 6

Signal Generator bottom view

Содержание ESG series

Страница 1: ...0 90388 Printed in USA September 2000 Supersedes July 2000 Installation Note Agilent Technologies ESG Series Signal Generators A Models CPU Motherboard Q501 relocated to Chassis Replacement Kit Part Number E4400 60238 ...

Страница 2: ...d to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Copyright 2000 Agilent Technologies Inc ...

Страница 4: ...ket 9 32 Socket Safety Considerations WARNING Before you disassemble the instrument turn the power switch off and disconnect the line cord Failure to unplug the Signal Generator can result in personal injury CAUTION Electrostatic discharge ESD can damage or destroy electronic components All work on electronic assemblies should be performed at a static safe workstation ...

Страница 7: ...Installation Note E4400 90388 7 6 Refer to Figure 2 Remove the top chassis cover item 2 by removing the 11 screws item 1 that secure it Figure 2 Top Chassis Cover Removal ...

Страница 8: ...lation Note E4400 90388 7 Refer to Figure 3 Turn the signal generator over and remove the bottom chassis cover item 3 by removing the 15 bottom chassis cover screws item 2 Figure 3 Bottom Chassis Cover Removal ...

Страница 9: ...m 1 at the base of the rear panel 2 Remove the hex screws and washers that secure the AUXILIARY INTERFACE item 2 and GPIB connectors item 3 to the rear panel 3 Remove the 10 screws item 4 that secure the rear panel to the signal generator chassis 4 Pull the rear panel assembly away from the signal generator chassis Figure 4 Rear Panel View ...

Страница 10: ... Baseband Generator board A7 2 If the signal generator has Option UN3 4 remove the Baseband Generator board A7 and the Pattern Ram board A8 Figure 5 Instrument s Top View Remove the CPU Motherboard 1 Refer to Figure 5 Disconnect A1W1 A3W1 B1W1 and B2W1 from the CPU Motherboard A14 2 Disconnect W13 and A4W1 from the CPU Motherboard A14 ...

Страница 11: ...1 is located on the CPU Motherboard A14 Remove the screw item 1 securing the CPU Motherboard to the signal generator chassis 2 Remove the Q501 transistor screw item 2 An insulated bushing is between the CPU Motherboard and the signal generator chassis 3 Remove the old CPU Motherboard Figure 6 Signal Generator bottom view ...

Страница 13: ...through the top opening in slot 3 2 Hold Q501 the inner plate and the outer plate with pem nut and place the bushing against Q501 3 Insert the screw through the bushing Q501 and the inner and outer plate Insure the plates and Q501 are properly seated Install the Q501 assembly and torque the screw to 9 in lbs Figure 8 Relocation of Q501 on the signal generator chassis ...

Страница 14: ...90388 Connect Q501 to CPU Motherboard 1 Refer to Figure 9 Connect the Q501 assembly wiring harness connector to the CPU Motherboard A14 2 Insure that the harness is properly seated Figure 9 Q501 Wiring Harness to CPU Motherboard ...

Страница 16: ...16 Installation Note E4400 90388 ...