My G5500 control box won't command the rotor left, but right works fine. No voltage to the #4 connector when I press "left", but if I put some pressure on the relay the voltage intermittently returns. So, guess the relay contacts are dirty.
Looking at the schematic it looks like both the right and left relays are the same, but use different connections. So. thinking I'll just remove and the two and swap relays. (This unit has been in daily use since 2002!)
Are these relays available from Yaesu or someone in the US? Did a quick Google and DigiKey search but didn't find them.
Just noticed there is a little lid on the top of the relay. When I popped that open there is a lot of black residue on the inside of the lid and I just might be able to clean the contact!
Ken, W7KKE
Just curious, why are so many of you on this board having problems with the G5500?Looks like I will make my own AZ/EL rotor with high torque stepper motors and controlledeither with Arduino or Raspberry Pi. Jerry...W8RQM
On Monday, October 19, 2020, 5:45:18 PM EDT, Ken Swaggart W7KKE via AMSAT-BB [email protected] wrote:
My G5500 control box won't command the rotor left, but right works fine. No voltage to the #4 connector when I press "left", but if I put some pressure on the relay the voltage intermittently returns. So, guess the relay contacts are dirty.
Looking at the schematic it looks like both the right and left relays are the same, but use different connections. So. thinking I'll just remove and the two and swap relays. (This unit has been in daily use since 2002!)
Are these relays available from Yaesu or someone in the US? Did a quick Google and DigiKey search but didn't find them.
Just noticed there is a little lid on the top of the relay. When I popped that open there is a lot of black residue on the inside of the lid and I just might be able to clean the contact!
Ken, W7KKE
_______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
18 years of daily use with only one relay going bad.....is not bad at all!
Bob W7OTJ
On Mon, Oct 19, 2020 at 2:57 PM Gerald Witalec via AMSAT-BB < [email protected]> wrote:
Just curious, why are so many of you on this board having problems with the G5500?Looks like I will make my own AZ/EL rotor with high torque stepper motors and controlledeither with Arduino or Raspberry Pi. Jerry...W8RQM
On Monday, October 19, 2020, 5:45:18 PM EDT, Ken Swaggart W7KKE viaAMSAT-BB [email protected] wrote:
My G5500 control box won't command the rotor left, but right works fine. No voltage to the #4 connector when I press "left", but if I put some pressure on the relay the voltage intermittently returns. So, guess the relay contacts are dirty.
Looking at the schematic it looks like both the right and left relays are the same, but use different connections. So. thinking I'll just remove and the two and swap relays. (This unit has been in daily use since 2002!)
Are these relays available from Yaesu or someone in the US? Did a quick Google and DigiKey search but didn't find them.
Just noticed there is a little lid on the top of the relay. When I popped that open there is a lot of black residue on the inside of the lid and I just might be able to clean the contact!
Ken, W7KKE
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Thanks Bob for your quick response. It is greatly appreciated. Jerry...W8RQM
On Monday, October 19, 2020, 7:00:38 PM EDT, Bob Hammond via AMSAT-BB [email protected] wrote:
18 years of daily use with only one relay going bad.....is not bad at all!
Bob W7OTJ
On Mon, Oct 19, 2020 at 2:57 PM Gerald Witalec via AMSAT-BB < [email protected]> wrote:
Just curious, why are so many of you on this board having problems with the G5500?Looks like I will make my own AZ/EL rotor with high torque stepper motors and controlledeither with Arduino or Raspberry Pi. Jerry...W8RQM
On Monday, October 19, 2020, 5:45:18 PM EDT, Ken Swaggart W7KKE via AMSAT-BB [email protected] wrote:
My G5500 control box won't command the rotor left, but right works fine. No voltage to the #4 connector when I press "left", but if I put some pressure on the relay the voltage intermittently returns. So, guess the relay contacts are dirty.
Looking at the schematic it looks like both the right and left relays are the same, but use different connections. So. thinking I'll just remove and the two and swap relays. (This unit has been in daily use since 2002!)
Are these relays available from Yaesu or someone in the US? Did a quick Google and DigiKey search but didn't find them.
Just noticed there is a little lid on the top of the relay. When I popped that open there is a lot of black residue on the inside of the lid and I just might be able to clean the contact!
Ken, W7KKE
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (3)
-
Bob Hammond -
Gerald Witalec -
k.swaggart＠charter.net