« previous next »
Pages: [1]   Go Down

Author Topic: 3458 Ram Test 1 Low  (Read 4819 times)

0 Members and 1 Guest are viewing this topic.

Offline bingo600Topic starter

  • Super Contributor
  • ***
  • Posts: 2038
  • Country: dk
3458 Ram Test 1 Low
« on: February 01, 2017, 02:23:39 pm »
Well i guess it's my time.

I just got a Ram Test 1 Low , when powering up my 58' , it's been off for 3..4 months.

A power off/on cleared the error , but i suppose the battery has gone low/weak on one of my Dallas ram's.

I just got the 2 data FRAMS from this thead , and i'm waiting for the cal FRAM  (I have a backup of the calram via gpib)

https://xdevs.com/fix/hp3458a_u4/
https://www.eevblog.com/forum/metrology/yes-another-3458a-repair-and-nvram-replacement-to-ramtron-fram/?all

The Ram Test 1 id cured by replacing the data RAMS with FRAMs correct ?

No mods are needed on the SOIC adapters on the data FRAMs correct ?

I'll start looking if i have 2 x SOIC-28 to dip for the data FRAMS , and another to mod for the CAL-Fram.
I'll also check if i have 2 x 28-pin and a 24-pin machined socket in the drawer.



But for now all i loose is any customs settings correct ?

/Bingo
« Last Edit: February 01, 2017, 02:30:11 pm by bingo600 »
Logged
 

Offline TiN

  • Super Contributor
  • ***
  • Posts: 4543
  • Country: ua
    • xDevs.com
Re: 3458 Ram Test 1 Low
« Reply #1 on: February 01, 2017, 04:32:59 pm »
Quote
it's been off for 3..4 months.
:o You are volt-nut criminal! I always feel bad when 3458 have no life-critical important resistor or LTZ-reference measurement ongoing for a day...  :popcorn:

Quote
The Ram Test 1 id cured by replacing the data RAMS with FRAMs correct ?
True.

Quote
No mods are needed on the SOIC adapters on the data FRAMs correct ?
True.

Quote
But for now all i loose is any customs settings correct ?
Correct, hotkeys and settings stored in main RAM.
Logged
YouTube | Metrology IRC Chat room | Let's share T&M documentation? Upload! No upload limits for firmwares, photos, files.
 
The following users thanked this post: bingo600

Offline bingo600Topic starter

  • Super Contributor
  • ***
  • Posts: 2038
  • Country: dk
Re: 3458 Ram Test 1 Low
« Reply #2 on: February 01, 2017, 05:00:49 pm »
Quote from: TiN on February 01, 2017, 04:32:59 pm
Quote
it's been off for 3..4 months.
:o You are volt-nut criminal! I always feel bad when 3458 have no life-critical important resistor or LTZ-reference measurement ongoing for a day...  :popcorn:

I usually use the 3457 for doing daily logging stuff , and just the 58' if i need to measure Geller or LTZ

/Bingo
Logged
 

Offline quarks

  • Frequent Contributor
  • **
  • Posts: 874
  • Country: de
Re: 3458 Ram Test 1 Low
« Reply #3 on: February 02, 2017, 03:52:07 pm »
Quote from: bingo600 on February 01, 2017, 02:23:39 pm
No mods are needed on the SOIC adapters on the data FRAMs correct ?

in all my tests the F-RAM replacement for DS1230 (I made no mods) worked without any problems, but I have only made quick tests and put back the Dallas Chips afterwards
Logged
 

Offline bingo600Topic starter

  • Super Contributor
  • ***
  • Posts: 2038
  • Country: dk
Re: 3458 Ram Test 1 Low
« Reply #4 on: February 02, 2017, 04:48:20 pm »
Quote from: quarks on February 02, 2017, 03:52:07 pm
Quote from: bingo600 on February 01, 2017, 02:23:39 pm
No mods are needed on the SOIC adapters on the data FRAMs correct ?

in all my tests the F-RAM replacement for DS1230 (I made no mods) worked without any problems, but I have only made quick tests and put back the Dallas Chips afterwards

Thanx quarks  :-+

I think i'll wait for the CAL-FRAM before installing all 3

/Bingo
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee