Electronics > Repair
Tek TDS7404 tips about log welcome
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coromonadalix:
tds7404 i restarted, dead battery, eeprom corruption on acq board (gave spc errors)  now all is fine no errors. ram upgrade and new hdd

[VxWorks Boot]: ?
 ?                     - print this list
 @                     - boot (load and go)
 p                     - print boot params
 c                     - change boot params
 l                     - load boot file
 g adrs                - go to adrs
 d adrs[,n]            - display memory
 m adrs                - modify memory
 f adrs, nbytes, value - fill memory
 t adrs, adrs, nbytes  - copy memory
 e                     - print fatal exception
 n netif               - print network interface device address
 N                     - set ethernet address
 
type c  and enter,  you should begin to do the settings like this :  and your entries should be after .....
see in bold, at first you'll see what they are by default,  you put yours ....  If you do a mistake  you can go back  or redo the settings loop ...


[VxWorks Boot]: c

'.' = clear field;  '-' = go to previous field;  ^D = quit

boot device          : sm                                           sm
processor number     : 0                                         0
host name            : host                                         host
file name            : c:\vxBoot\vxWorks.st                 c:\vxBoot\vxWorks.st
inet on ethernet (e) : 192.168.0.2:ffffff00               192.168.0.2:ffffff00
inet on backplane (b): 192.168.0.2:ffffff00              192.168.0.2:ffffff00
host inet (h)        : 192.168.0.1                              192.168.0.1
gateway inet (g)     : 192.168.0.2                           192.168.0.2
user (u)             : anonymous                                 anonymous
ftp password (pw) (blank = use rsh): anonymous          anonymous
flags (f)            : 0x1000                                        0x1000          some had to put 0x1008  in my case it did not help
target name (tn)     : target                                     tds7000     this one should be tds7000, otherwise tekscope will not save settings
startup script (s)   : c:\vxBoot\dio_rst.vsh               c:\vxboot\topscript.hw
other (o) :                                       this one play tricks   had to put 0x0 or 0x0000  tekscope had some problems, some have put 0x1000
hazelnutsky:
OK, found the BIG thread about this, and moving my comments there.

https://www.eevblog.com/forum/testgear/tek-csa7404-repair-project/850/

darkroom:
Hi,

I am sorry if this is posted elsewhere, but I just couldn't find it.  Where can I find into on this RS-232 cable, and what it hooks to in the analyzer?  What is the voltage?  TX, RX, GND only?

Any help appreciated!

Austin

- Update Found it here:

https://github.com/exit-failure/tds7000/blob/main/NVRAM/README.md

I think this is what I'm looking for.

coromonadalix:
yep that's the info's i used, and i had  the super cap  thingy on top,  i put an 2032 cell in a socket  near the ic and soldered the wires on it

sadly all the infos get diluted, and hard to come back   ...
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