Products > Test Equipment
My poor mans SMU - The Agilent 66311B
GAD:
--- Quote from: Muxr on February 21, 2016, 01:07:56 am ---Mine arrived a few days ago. No knob, but it had a sticker on it which said "working". I opened it up anyways. Looked good. Fired it up and it appears to be working. Can't really test it until my connector arrives in a few days.
The VFD is good on it, not dim. The fan is loud, will need modding.
In either case, very happy with the score, thanks TheSteve!
--- End quote ---
Yours looks positively new compared to mine. Anyone else receive one that looks as bad as mine?
TheSteve:
--- Quote from: gslick on February 21, 2016, 02:10:45 pm ---
--- Quote from: TheSteve on February 21, 2016, 01:17:19 am ---
btw, mine has ROM A.02.04 and the CAL date is 09/08/06
edit - played around a little. First I dumped the config/cal eeprom (93C86) so I had a backup. I then went into the board init menu but my firmware only allows 66311B, 66311D, 66309B and 66309D to be selected. I was able to exit without losing any cal data. So there is no other model I can select that is useful.
--- End quote ---
Do you have the means to read and dump the ROM A.02.04 firmware? I think it's in either a 28- or 32-pin PLCC package.
I think I have either A.02.01 or A.02.02 in my 66309D supplies and there are some additional settings available in the A.02.04 firmware. (For example whether the dual supplies switch on/off together or independently). I don't know for sure the firmware is actually the same between the 66311B, 66311D, 66309B and 66309D models.
How did you dump the config/cal eeprom (93C86)?
--- End quote ---
The firmware should be compatible with your model. Have you checked to see what part number the ROM is? If it's compatible with a programmer/socket I have I can dump it. I read the eeprom in circuit with a UPA-USB programmer using an SOIC clip. I don't think I'd program it in circuit though unless the processor was held in reset.
mtdoc:
--- Quote from: GAD on February 21, 2016, 06:22:43 pm ---
Yours looks positively new compared to mine. Anyone else receive one that looks as bad as mine?
--- End quote ---
Mine is due to arrive on Tuesday. I'll let you know.
gslick:
--- Quote from: TheSteve on February 21, 2016, 06:49:49 pm ---The firmware should be compatible with your model. Have you checked to see what part number the ROM is? If it's compatible with a programmer/socket I have I can dump it. I read the eeprom in circuit with a UPA-USB programmer using an SOIC clip. I don't think I'd program it in circuit though unless the processor was held in reset.
--- End quote ---
The A2 board block diagram in the service manual shows it as a 4Mbit 256Kx16 part and it is an AMD part in a 44-pin PLCC package so that should make it an Am27C4096 on the 5064-0088 version of the A2 board in my 66309D. I haven't gone back to peel off the firmware version part number sticker on the OTP EPROM yet to verify that is the actual part number.
-Glen
TheSteve:
--- Quote from: gslick on February 21, 2016, 09:33:00 pm ---
--- Quote from: TheSteve on February 21, 2016, 06:49:49 pm ---The firmware should be compatible with your model. Have you checked to see what part number the ROM is? If it's compatible with a programmer/socket I have I can dump it. I read the eeprom in circuit with a UPA-USB programmer using an SOIC clip. I don't think I'd program it in circuit though unless the processor was held in reset.
--- End quote ---
The A2 board block diagram in the service manual shows it as a 4Mbit 256Kx16 part and it is an AMD part in a 44-pin PLCC package so that should make it an Am27C4096 on the 5064-0088 version of the A2 board in my 66309D. I haven't gone back to peel off the firmware version part number sticker on the OTP EPROM yet to verify that is the actual part number.
-Glen
--- End quote ---
Well I'm happy to give it a go if you can get me an actual part #.
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