DataMan "Gang of Eight" EPROM programmer - UK Vintage Radio Repair and Restoration Discussion Forum

amornummi · 22nd Aug 2015, 9:26 pm

I have one of these , it works with 2716 (21v) but not with 27C16 (12v).
Has anyone got the instruction book please ?
I need to copy a 27C16 for a repair.

Chris G0EYO · 22nd Aug 2015, 10:48 pm

I have an scanned version of the users manual for a DataMan Gang of Eight which I would be happy to e mail to you if you PM me your e mail address
Regards
Chris G0EYO

SiriusHardware · 26th Aug 2015, 8:01 pm

The differences between 27C16 and 2716 really relate only to the programming of the devices, (and smaller current consumption of the 'C' variant) as far as I can remember.

Inserted into a system or programmer, they both look the same in read mode.

Therefore, if you set your device programmer to generic 2716 it should be able to read the code from the programmed 27C16 OK. (Refrain from trying to program the spare 27C16 as a 2716, though, because it will be damaged by the higher programming voltage).

Is there a particular reason (apart from current consumption, maybe) why you can't use a 2716 as the target device?

geoff_n · 8th Feb 2016, 10:39 am

I Think that the logic levels for the CMOS are a bit different to the TTL and the GO8 won't prog the CMOS, Might be worth getting the data sheet for the cmos chip and checking.
It's a long time since I worked on the GO8, I used to repair them at Datamans. Mostly production faults.

22nd Aug 2015, 9:26 pm	#1
amornummi Triode Join Date: Mar 2008 Location: Huddersfield, West Yorkshire, UK. Posts: 45	DataMan "Gang of Eight" EPROM programmer I have one of these , it works with 2716 (21v) but not with 27C16 (12v). Has anyone got the instruction book please ? I need to copy a 27C16 for a repair.

22nd Aug 2015, 10:48 pm	#2
Chris G0EYO Pentode Join Date: Dec 2008 Location: Redditch, Worcestershire, UK. Posts: 196	Re: DataMan "Gang of Eight" EPROM programmer I have an scanned version of the users manual for a DataMan Gang of Eight which I would be happy to e mail to you if you PM me your e mail address Regards Chris G0EYO

26th Aug 2015, 8:01 pm	#3
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,553	Re: DataMan "Gang of Eight" EPROM programmer The differences between 27C16 and 2716 really relate only to the programming of the devices, (and smaller current consumption of the 'C' variant) as far as I can remember. Inserted into a system or programmer, they both look the same in read mode. Therefore, if you set your device programmer to generic 2716 it should be able to read the code from the programmed 27C16 OK. (Refrain from trying to program the spare 27C16 as a 2716, though, because it will be damaged by the higher programming voltage). Is there a particular reason (apart from current consumption, maybe) why you can't use a 2716 as the target device?

8th Feb 2016, 10:39 am	#4
geoff_n Retired Dormant Member Join Date: Dec 2010 Location: Herefordshire, UK. Posts: 16	Re: DataMan "Gang of Eight" EPROM programmer I Think that the logic levels for the CMOS are a bit different to the TTL and the GO8 won't prog the CMOS, Might be worth getting the data sheet for the cmos chip and checking. It's a long time since I worked on the GO8, I used to repair them at Datamans. Mostly production faults.