Hi,
Even cutting the PLCC socket would have risks to damage the tracks on
the board due to stress of the cutting.
I have temperature controlled vacuum desoldering equipment, which should
desolder the PLCC socket pins without damage. Much better and safer than
hand pump desoldering equipment.
The plugin adapter is a good idea, but the development costs would be
high and the changes to the operating system would difficult.
If the Jamma GBS8220 board is connected to the Q60 VGA port, this does
make the display better, but still needs a little tweaking to get full
screen display. Maybe solution would be to signal condition the VGA
signal coming out of the Q60 VGA connector.
This is also difficult, but non-destructive on the Q60 board.
Regards,
Derek
On 11/03/16 23:46, Thierry Godefroy wrote:
On Fri, 11 Mar 2016 23:22:40 +0000, derek wrote:
I would be careful desoldering a PLCC chip,
Actually, the socket, not the chip... ;-)
the D&D Q60 was soldered correctly under the correct soldering
temperature.
I have repaired some Qbranch Q40 boards, which had issues with the
over heating of the soldering, resulting in detachment of the through
hole plating.
Yes, I do agree that it won't be for the faint hearted... A "dirty"
but safer (for the PCB) solution, since the PLCC socket will be trashed
anyway, is to use a small cutting pliar to (carefully) destroy the
socket, then to unsolder each pin individually once all the plastic
parts have been removed.
This said, an adapter is still the best solution. A quick search on
the web lead me to this:
http://www.ironwoodelectronics.com/catalog/Content/Templates/PartGrids.cfm?StartRow=21&cPart=PL-PLCC44-H-01&Grid=PL-PLCC_TABLE
http://www.ironwoodelectronics.com/catalog/Content/Drawings/PL-PLCC44-H-01Dwg.pdf
Not sure how mush it costs, but maybe not much more than the
RTC+battery chip as sold by Farnell... ;-P
Thierry.
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