Category Archives: Lab Tools/Hardware

My Tektronix TLA715 Logic Analyzer with the TLA7PG2 Pulse Waveform Generator

This weekend I repaired a TLA7PG2  pulse waveform generator module for my Tektronix TLA715 Logic Analyzer mainframe. I was able to repair the unit due to the fact that I had one working module. There was an ALTERA MAX 7000 CPLD that was damaged and I was able to use the good module to duplicate the CPLD. (Luckily the Security-bit was not set) I duplicated the data to a new component for re-work.




100_7548As you can see in the images above, I now have (x5) different modules inserted into my TLA Expansion Box that interfaces to my Tektronix TLA715 Logic Analyzer Portable Mainframe.
I have the following Modules installed:
– (x1) TLA7E2 (4ch Digital Oscilloscope)
– (x2) TLA7N4 – with Option 7 installed   (136 Channel Logic Analyzer Module)
– (x2) TLA7PG2  (64 Channel Pulse Generator Module) with P6470 TTL Logic interfacing PODs.
With this setup, using different Triggers and various Waveform Patterns, I’ll be able to execute some sophisticated Test Benches on different CPLD/ FPGA or Micro-controller projects I’m working on. I  can then monitor the results on the Dual VGA Monitors that are interfaced to the LA Mainframe.
Below you can see the Tektronix issued “Probe cable” that connects the PODs to the Pulse Generator Module. This cable has the Tektronix Model# 012-1570-00. The cable is often mistaken for a 50-Pin SCSI cable, which it is NOT!!  This happened so often that it is even stated in the Modules User & Service Manuals.
If you decide to build your own cable, The Tektronix issued cable is a 50-pin Male to Male 
“Mini-D Ribbon” connector cable.  Or also known as an “MDR” cable.  The company 3M has a Connector cable model# 10350 which has the appropriate Male connectors.
You can also purchase the Male 3M Solder Plug Connectors directly from at the link Below: 


100_7557100_7552 TLA7PG2_P6470_POD_04 TLA7PG2_P6470_POD_03 TLA7PG2_P6470_POD_02 TLA7PG2_P6470_POD_01




NGPC_DATABUS_TEST_2 Overall I’m pretty excited to mess around with this Setup…
More info on My Tektronix Logic Analyzer system at the Link Below:
Fun Stuff!!!  : )


Ingersoll-Rand – INSIGHT “PFS2-G” DC Electric Torque Controller Repair

IR_INSIGHT_IC_PFS2G_046I recently acquired one of these Ingersoll-Rand – INSIGHT “PFS2-G” DC Electric Torque Controllers. I got the unit for $180 broken which was a steal as far as I’m concerned. These units cost around $13,000.00 new back in the day. (Late 90’s Early 2000)

I had to spend a significant amount of time repairing this unit, most of which was figuring out how the unit worked and the software/tools  I was going to need to do the Job.

Long Story Short…

I had to purchase an older Motherboard that was a Pull from a similar unit, and that had the Software still installed within the units memory chips. I Then had Download the data, Re-program a couple of EEPROM’s to get the software up and running again. Success !!

A nice little addition to my Electronics Lab!!   : )




You can Check out some more in depth details and photos of this repair on my Website at the Link below: