Hello all,
a TDS3054 (built in year 2001) shows the following symptoms when connected to power:
- 'A system error has occured', Error Count =11, 'display error', goes away after short power off/on
- Unrealistic high 'total operation time' (16350105 hours)
- Impossible time setting (e.g. '11:80:21')
Topic #157465 also deals with this issue, the problem is data corruption inside
U640 DALLAS DS1742W, exhausted lithium battery, date code on the
package is '0029'.
I ordered replacement DS1742W via Amazon in China (the chips I received seem fully functional when
tested on a programmer), date code on the package is '0945'.
How should I prepare the new DS1742W I am going to install in the scope?
Simply read out the (most probably) rubbish of the old DS1742W and copy
it to the new one?
Is a memory map available somewhere which shows the addresses of the
relevant memory locations and their expected content in a working scope?
(the address locations 0x7F8...0x7FF are described in the DS1742W data
sheet)
I cannot believe that appr. 2k of memory are fully used to store internal scope
status data.
Thanks for any help!
Best regards
-Roland
