Electronics > Repair
HP 3468A does not complete self-test, the LCD display all on.
StrayElectrons:
My corrected.
Edited again, Eventually found what I'm looking for on Intel D8039"-6" means 6MHz version.
But did not find what I'm trying to find out what "AHL" suffix means for Intel D8039AHL?
Thank you and cheers,
cruff:
The service manual says it uses a 6.003 MHz crystal.
StrayElectrons:
I know because the service manual says this crystal is 6.003MHz.
But the other datasheets for D8039-6 is not clear till I found another datasheet after few days of search answered my question about "-6" meant.
The datasheet says intel processor without "-6" is rated up to 11MHz.
But I'm still not sure what "AHL" means for D8039AHL?
Thank you and cheers,
fenugrec:
--- Quote from: StrayElectrons on December 23, 2024, 06:32:10 pm ---But I'm still not sure what "AHL" means for D8039AHL?
--- End quote ---
For the 8039 : apparently nothing, see screenshot. I wouldn't worry too much, just backup your cal, get a "new" 8039, socket it, move on. That is, of course, if you're sure there's not another device on the bus that is shorting the Dx pins and causing the weird levels.
StrayElectrons:
I rechecked and looked more carefully at data sheets and I'm now most satisfied with details I needed.
All the parts ordered are turned pin sockets, LP8039AHL processor, 54LS373. Now I have to wait few weeks.
Once I have parts, and replace these and if that fixes this, will let you all with new updates.
Cheers,
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