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Entry  Mon Oct 4 21:58:17 2021, Tega, Update, Electronics, Sat Amp modifications 
    Reply  Tue Oct 5 17:01:20 2021, Koji, Update, Electronics, Sat Amp modifications 
    Reply  Wed Oct 6 16:31:02 2021, Tega, Update, Electronics, Sat Amp modifications 
Message ID: 16386     Entry time: Wed Oct 6 16:31:02 2021     In reply to: 16379
Author: Tega 
Type: Update 
Category: Electronics 
Subject: Sat Amp modifications 

[Tega, Koji]

(S2100737) - Debugging showed that the opamp, AD822ARZ, for PD2 circuit was not working as expected so we replaced with a spare and this fixed the problem. Somehow, the PD1 circuit no longer presents any issues, so everything is now fine with the unit.

(S2100741) - All good.

Quote:

Trying to finish 2 more Sat Amp units so that we have the 7 units needed for the X-arm install. 

S2100736 - All good

S2100737 - This unit presented with an issue on the PD1 circuit of channel 1-4 PCB where the voltage reading on TP6, TP7 and TP8 are -15.1V,  -14.2V, and +14.7V respectively, instead of ~0V.  The unit also has an issue on the PD2 circuit of channel 1-4 PCB because the voltage reading on TP7 and TP8 are  -14.2V, and +14.25V respectively, instead of ~0V.

 

 

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