17 May
1998
17 May
'98
1:29 p.m.
On Sun, 17 May 1998 jpero(a)mail.cgo.wave.ca wrote:
3.2V? That's seems not right for that ttl cmos
family. Should be
~5V +/-5% Keep cranking that power source up bit by bit slowly and
monitor the voltage rise or no change?
Err, well, I was using one of those cheap-o low-amperage things with six
different voltage settings. (Funny how all the voltages looked pretty
much the same on the meter.) I went to the corner grocery to get a
variable regulated supply (this is silicon valley, after all), but they
were all around $300, so I went home without.
Your pototype looked nearly complete to go into a
notebook at get go.
So that's means it should have a functioning PSU module part.
And nearly all PSU modules use switching technologies.
OK, I took off the board to get to this black box labeled ERG INC, E1015,
9210E, but the output seems to go only to the LCD.
3.3V based portables started to appear after Intel and
AMD introduced
their 3.3v chips and chipsets became common after '91 or so.
That real appearance takes place about a year after this and totally
converted over to all 3.3V logic well after dx4 portables became
common.
This is from early '93, and has a Cyrix 486SLCe/V25-MP.
I have a sharp eye for someting amiss. Did you have
any few
small chips that is stuck with some kind of sticker at all even in
socket? This is typical for bios And can you find a CPU somewhere?
I think this is 386sx class notebook maybe based on amd or SLC type.
Man, you do have a sharp eye; there appears to be an empty ROM socket on
the bottom of the board (but I'm hoping against hope that they integrated
Flash into one of the big chips).
Did you have that 32pin SOJ socket empty? That is
might be the
socket for that bios oh, what a big bummer!
And you do have a heard drive made by Areal, long since dead HD
maker.
There's no way you could have seen the Areal MD2060. Do you have any
picks for the stock market tomorrow?
-- Doug