---------------------------------------------------------- RV6-List Digest Archive --- Total Messages Posted Mon 05/12/25: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:50 PM - VM1000 AMP/Current circuit (Gary VanRemortel) 2. 04:27 PM - Re: VM1000 AMP/Current circuit (recapen@earthlink.net) 3. 04:32 PM - Re: RV-List: Re: VM1000 AMP/Current circuit (Gary VanRemortel) 4. 05:03 PM - Re: Re: RV-List: Re: VM1000 AMP/Current circuit (recapen@earthlink.net) ________________________________ Message 1 _____________________________________ Time: 03:50:45 PM PST US From: Gary VanRemortel Subject: RV6-List: VM1000 AMP/Current circuit Not sure if many of you are still flying with the original Lance Turk designed VM1000, but my ammeter circuit was periodically dropping out and I was unable to get advice on the old girl. I made myself a breakout cable to monitor the signals/voltages on the sensor lines during flight. The 10VDC was dropping out, so I took the DPU apart and traced the supply path to VR2 on the analog PCB. I reasoned that since this 10VDC only powered the ammeter circuit, it must be flakey. I replaced it (TI 78L10AC) and now all is well. -GV ________________________________ Message 2 _____________________________________ Time: 04:27:40 PM PST US From: recapen@earthlink.net Subject: Re: RV6-List: VM1000 AMP/Current circuit Good job Gary! I parted out my VM1000 years ago and replaced it with an AFS 3400 when i had issues with mine. Sent using myEarthLink On Mon May 12 18:51:47 EDT 2025 Gary VanRemortel wrote: Not sure if many of you are still flying with the original Lance Turk designed VM1000, but my ammeter circuit was periodically dropping out and I was unable to get advice on the old girl. I made myself a breakout cable to monitor the signals/voltages on the sensor lines during flight. The 10VDC was dropping out, so I took the DPU apart and traced the supply path to VR2 on the analog PCB. I reasoned that since this 10VDC only powered the ammeter circuit, it must be flakey. I replaced it (TI 78L10AC) and now all is well. -GV ________________________________ Message 3 _____________________________________ Time: 04:32:44 PM PST US From: Gary VanRemortel Subject: Re: RV-List: Re: RV6-List: VM1000 AMP/Current circuit Pretty pricey stuff. On Mon, May 12, 2025 at 4:29=AFPM wrote: > Good job Gary! > I parted out my VM1000 years ago and replaced it with an AFS 3400 when i > had issues with mine. > > Sent using myEarthLink > > On Mon May 12 18:51:47 EDT 2025 Gary VanRemortel wrote: > Not sure if many of you are still flying with the original Lance Turk > designed VM1000, but my ammeter circuit was periodically dropping out and I > was unable to get advice on the old girl. > > I made myself a breakout cable to monitor the signals/voltages on the > sensor lines during flight. The 10VDC was dropping out, so I took the DP U > apart and traced the supply path to VR2 on the analog PCB. I reasoned th at > since this 10VDC only powered the ammeter circuit, it must be flakey. I > replaced it (TI 78L10AC) and now all is well. > > -GV > ________________________________ Message 4 _____________________________________ Time: 05:03:45 PM PST US From: recapen@earthlink.net Subject: Re: Re: RV-List: Re: RV6-List: VM1000 AMP/Current circuit It was also during the JPI war.... Sent using myEarthLink On Mon May 12 19:33:44 EDT 2025 Gary VanRemortel wrote: Pretty pricey stuff. On Mon, May 12, 2025 at 4:29=AFPM < recapen=40earthlink.net (mailto:recapen=40earthlink.net) > wrote: > Good job Gary=21 > I parted out my VM1000 years ago and replaced it with an A=46S 3400 whe n i had issues with mine. > > Sent using myEarthLink > > On Mon May 12 18:51:47 EDT 2025 Gary VanRemortel wrote: > Not sure if many of you are still flying with the original Lance Turk d esigned VM1000, but my ammeter circuit was periodically dropping out and I was unable to get advice on the old girl. > > I made myself a breakout cable to monitor the signals/voltages on the s ensor lines during flight. The 10VDC was dropping out, so I took the DPU apart and traced the supply path to VR2 on the analog PCB. I reasoned tha t since this 10VDC only powered the ammeter circuit, it must be flakey. I replaced it (TI 78L10AC) and now all is well. > > -GV ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv6-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV6-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv6-list Browse Digests http://www.matronics.com/digest/rv6-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.