"RAM Test 1 High“ for my 3458A - Page 1
Forum section: electronics / general

author: seebeck
author_rank: Contributor
timestamp: February 21, 2020, 02:07:52 am
content: Hi Folks,I met a problem for my 3458A, it showed "RAM Test 1 High" after power on a few minutes.The digital board (A5 Outguard Controller) is the latest version 03458-66547, it is that ST's yellow / square battery of the board. I borrowed TiN's pic from xDevs website.What causes this calm? Who knows it? please give some suggestion, tks.BR.Seebeck

author: MiDi
author_rank: Frequent Contributor
timestamp: February 21, 2020, 05:30:11 am
content: It tells you that data on nvsram is corrupted.It is an indication to replace weak batteries on them.

author: syau
author_rank: Frequent Contributor
timestamp: February 21, 2020, 01:16:21 pm
content: Mouser still have stock on those yellow cap, just replace it with the meter powered will do.

author: notfaded1
author_rank: Frequent Contributor
timestamp: February 21, 2020, 02:17:38 pm
content: Quote from: MiDi on February 21, 2020, 05:30:11 amThanks for that Midi it makes me want to order some and change mine... have you tried this too? Seems like ordering the M4Z32 120 mAh version without the crystal inside would be best? Of all the parts inside the 3458 this at least doesn't look super complicated to replace.

author: MiDi
author_rank: Frequent Contributor
timestamp: February 21, 2020, 03:08:30 pm
content: I own a HP which has different parts for nvsram.Whole work on it is documented in separate thread.

author: seebeck
author_rank: Contributor
timestamp: February 22, 2020, 01:45:31 pm
content: Hi Midi,Thanks for your reply.I have tried to replace the batterie but the issue still remain.In addition, the voltage near to 2.8V for old batteries, the new coupler's voltage is higher than 3.3V.For the NVRAM_ST's M40Z111M (suffixed "M", M be able to operate with Vcc = 3V condition). Unfortunately, this one is a obsolete product from ST side.B.R.From Seebeck.

author: Dr. Frank
author_rank: Super Contributor
timestamp: February 22, 2020, 03:12:32 pm
content: Probably the data in the configuration nvRAM area (2x 32kB) is still corrupted, i.e. parity error, or so.Try to flush this memory area and reboot.Use the SCRATCH command for deleting all.Frank

author: MiDi
author_rank: Frequent Contributor
timestamp: February 22, 2020, 04:08:53 pm
content: Error remains for first power up, but for second error should be gone.If error remains, there is another error not related to low batteries, could be faulty nvsram or something else.

author: seebeck
author_rank: Contributor
timestamp: February 23, 2020, 01:35:01 pm
content: Dr. Frank and MiDi,I think it is probable that a HW failure from A5 digital board.I tried to use the SCRATCH command via GPIB port, but my PC could not find anything. I am sure the address is 22.Then, I had to change a 34970A on my bench, it's ok.BTW, I saw another message "PC=018B76,202068" from my 3458A.B.R.From Seebeck.

author: Dr. Frank
author_rank: Super Contributor
timestamp: February 23, 2020, 02:50:45 pm
content: I'm not sure, but I think that *IDN? commanddoesnot work on the 3458A, as it hasn't yet got SCPI language.Frank

author: branadic
author_rank: Super Contributor
timestamp: February 23, 2020, 04:07:58 pm
content: Quote from: Dr. Frank on February 23, 2020, 02:50:45 pmNow that you wrote it, yes *IDN? doesn't work for 3458A. I stumble about that too, when I played with 3458A and GPIB commands.-branadic-

author: Andreas
author_rank: Super Contributor
timestamp: February 23, 2020, 04:11:30 pm
content: According to the handbook you should use "ID?" instead.with best regardsAndreas

author: e61_phil
author_rank: Frequent Contributor
timestamp: February 23, 2020, 07:46:36 pm
content: and you have to send END ALWAYS to get it to run with Keysight IOYou problem isn't the wrong command. There is something else not working properly.