Products > Test Equipment

Test Equipment Anonymous (TEA) group therapy thread

<< < (2437/27437) > >>

bd139:
6237B now fixed and operational. Diode replaced. Photo, because sexy gold PCB:



And without any adjustments, it's pretty dead on:



Got a bunch of wirewound resistors arriving tomorrow so will chuck it on load for a few hours and see if it survives!

mnementh:

--- Quote from: med6753 on June 18, 2018, 01:03:33 pm ---Since the past few days we've been talking vehicles I figured I'd try to tie it into test equipment and TEA.

To wit: An Actron CP9035 OBD-II Code Reader. A form of test equipment. I purchased this unit back in 2001. At that time code readers specifically for the home mechanic were few and expensive. As I recall I paid about $180 USD for this one. And all it does it read and erase DTC's (Diagnostic Trouble Codes) and nothing else. No analysis or trending. But despite that limitation it has paid for itself several times over. But unfortunately it is rapidly becoming obsolete. Starting in about 2005 or so the CAN protocol was becoming more or less the standard. This code reader cannot interface with CAN. But it can work with the older OBD-II protocols. So I can still use it on my 2004 Honda Civic but not on my 2013 Honda CR-V. But I do have a PC based OBD-II program with USB to OBD-II that I can use on that vehicle. That program handles all OBD-II protocols.



In all the years I've had this reader I've never taken it apart. Until now. Here's the main circuit board. I didn't bother to look up the chips but there's at least 1 Seimens chip and several Motorola chips. I couldn't disassemble it further to view the backside because the LM294 on lower left is riveted to the top of the case. Beats me as to why they did that.

So there you have it. Cars, test equipment, TEA.    :-+   

--- End quote ---




I was one of the guinea pigs on the first USB version of Scantool.net's ELM327-based OBD2 package. Software was buggy and crashed on anything newer than XP (crashed on that too unless you were in VGA native mode), the FTDI serial-USB drivers were a total PITA, and it usually took several tries before it would connect to the car, but it was the only affordable package that could talk to J1850 cars like my wife's Saturn AND newer cars using CANBus. I still have the dongle and the software on an old ToughBook I keep around for nuking CISCOs.

They shot themselves in the foot when they tried to turn that UI into the "gateway" software for third-party vendors; the constant "their fault, not ours" runaround made both vendors look like a joke, and users made sure to tell of their misery in great detail on all the car repair forums.

Nowadays, you get better functionality than either from a $9 BT dongle and a $5 (free if you just need to read/erase DTCs and can put up with commercials) app on your android phone.

If you need full-featured Dealership diag modes, OTC does make a number of stand-alone scanners that are surprisingly comprehensive for the price. They did well enough in the aftermarket to drive many manufacturers to adopt them as their primary diag tool; but that's a story for another day.


mnem
*ploop*

Specmaster:

--- Quote from: bd139 on June 18, 2018, 04:17:01 pm ---6237B now fixed and operational. Diode replaced. Photo, because sexy gold PCB:



And without any adjustments, it's pretty dead on:



Got a bunch of wirewound resistors arriving tomorrow so will chuck it on load for a few hours and see if it survives!

--- End quote ---
That is spot on, no need to calibrate, but then thats what we've come to expect from HP gear in general that they hold their calibration really well. Love those gold plated tracks on their PCB's  :-+

bd139:
As always plus one power supply, minus one power supply. My TTi PL310 just blew up. Well not blew up but it’s reading zero volts on the output. Grrr!

Specmaster:

--- Quote from: bd139 on June 18, 2018, 08:35:06 pm ---As always plus one power supply, minus one power supply. My TTi PL310 just blew up. Well not blew up but it’s reading zero volts on one channel. Grrr.

--- End quote ---
You just kill your power supplies, you'll have to treat them with a little more respect. I'm struggling to get on the forum from my computer today so I won't be able to post pictures of the meter just yet. Main problem with it is battery corrosion, new battery holder coming, otherwise slight tweaking of trim pots required.

From mobile device so predictive text might have struck again [emoji83]

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod