MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO
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Message ID: 5522     Entry time: Tue Jan 21 17:55:12 2020
Author: Marlène 
ExpNbr: TEST 
Type: MUST2 
Category: Hardware 
Status: Pending 
Target-Source:  
Subject: Ovv error on the -5V of CAEN boards 
The Ovv error shows on the -5V (first one) of the 3 board (5,3.3,10V for MUST2§squares)
It means that the voltage is over the asked value.
If we ask 5V, we get 5.5V in reality

We changed for 4.5V and we get 5V. The current is different from the one on the MUGAST BT box but we don't know how many detectors are connected.
We exchanged cables and found the same current in the other board, so we guess that it is still working properly.
A check of stability should be done.
Attachment 1: BT_referenve_5V_cables_inv_a_comp_referenve_5V_partMUST2  38 kB
Attachment 2: BT_referenve_5V_partMUST2_cables_inv_a_comp_referenve_5V  41 kB
Attachment 3: BT_referenve_5V_partMUST2  39 kB
Attachment 4: BT_referenve_5V  42 kB

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