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@@ -11,8 +11,10 @@ The photos show an analyzer that has been upgraded with a modern LCD display ({{:component_measurement:4145a:newscope-5_install_op.pdf|NewScope-5 from SIMMCONN Labs}}) and a "Gotek" floppy emulator to replace its original, proprietary 5.25" Floppy Drive.
<WRAP clear></WRAP> <WRAP download right 33> + {{:component_measurement:4145a:hpj-1982-10.pdf|HP Journal 1982-10}} + {{:component_measurement:4145a:hp4145a_semiconductor_parameter_analyzer_operation_and_service_manual.pdf|Service Manual}}
{{:component_measurement:4145a:an_315_-_dc_parametric_analysis_of_semiconductor_devices_hp_4145b_.pdf|Application Note AN-315}}
@@ -59,6 +61,11 @@
Also published on groups.io: https://groups.io/g/HP-Agilent-Keysight-equipment/message/140475
+ ===== HP 4145A - Miscellaneous Repair Notes ===== + + * Front panel push-buttons - if they are "clicky" (which is a well-known problem) - Take the front panel off, remove the PCB with all the switches, and use the Isopropyl alcohol method for cleaning. One sample thread is here: https://groups.io/g/HP-Agilent-Keysight-equipment/message/138483 + * Rotary Pulse generator - if not working, try the information from this groups.io topic "https://groups.io/g/HP-Agilent-Keysight-equipment/message/6724" to fix it. + * Instrument fan: The HP part number is 3160-0391. A suitable replacement is this: https://a.co/d/7s5Tr1T. More info on the topic: https://groups.io/g/HP-Agilent-Keysight-equipment/message/139316