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- Path: sktelgw.sasktel.sk.ca!usenet
- From: ed.palmer@sasktel.sk.ca (Ed Palmer)
- Newsgroups: comp.sys.amiga.hardware,comp.periphs.scsi
- Subject: Re: Help! A chip from my SCSI streamer fried!
- Date: 12 Feb 1996 16:59:37 GMT
- Organization: SaskTel
- Message-ID: <4fnrlp$7ut@sktelgw.sasktel.sk.ca>
- References: <2146.6615T882T1815@imaginet.fr>
- NNTP-Posting-Host: epalmer.sasktel.sk.ca
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-
- In article <2146.6615T882T1815@imaginet.fr>, yeproy@imaginet.fr says...
-
- >It is one small square chip out of six almost identical, and have the
- >Motorola logo on it. It belongs to the uppermost row of three chips,
- >the other two being labelled "040 T 3055E" and "037 T 3055E". Below is a
- >second row of three chips, labelled "003 T 2955", "949 T 2955" and
- >"003 T 2955".
- >
- >The chip have three contacts soldered on the board, and a free extra one.
- >Here's a quick ASCII draw (I can provide an uuencoded small JPEG):
- >
- > _____
- > | | one large contact one one side
- > #######
- > #######
- > #######
- > ###O###
- > ####### three thin contacts on the other one
- > I I I with the middle one not being soldered
- >
- >The place of the chip is labelled "Q4", and the board itself is labelled
-
- Could be a surface mount version of the 2N3055 power transistor. Check the
- others with an ohmmeter to see if they look like an NPN transistor. I'm
- guessing that the unconnected center contact is connected to the large
- contact on the other side.
-
- Ed
-
-
-
-