Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!husc6!rutgers!att!mtuxo!mtgzy!rlf
From: rlf@mtgzy.att.com (r.l.fletcher)
Newsgroups: sci.electronics
Subject: Re: 8741 Chip question
Summary: Modules dont use 40 pin dips (also question)
Message-ID: <4282@mtgzy.att.com>
Date: 11 Oct 88 14:10:50 GMT
Article-I.D.: mtgzy.4282
References: <741@umbio.MIAMI.EDU> <1490@ssc.UUCP>
Organization: AT&T, Middletown NJ
Lines: 25

In article <1490@ssc.UUCP>, markz@ssc.UUCP (Mark Zenier) writes:
> In article <741@umbio.MIAMI.EDU>, dnelson@umbio.MIAMI.EDU (Dru Nelson) writes:
> > I checked it again.  It has at the top PICO.  On the next line 570.
> > On the next line 8731c-a.  This chip was in a Radio Shack 3-prong
> > universal appliance switch.
> 
> The 8741 will be a 40 pin ceramic package with an erasure window. (There may
> be 44 pin chip carrier or what ever they are called).  If it is the only chip,
> it is unlikely to be the 8741, since it has a bus interface and is designed
> to be a programmable peripheral directly connected to a computer bus.

If it's an appliance  module it is not an 8741, no module I've ever
seen has (or needs) a 40 pin DIP.

Aside, I have a lamp module that died. Some modules (light switch) have
a fusible link which blows. This one doesnt seem to. Is there any
protection device in these which I can repair? If not, does anyone
know if BSR will still swap these things for a nominal charge? Does
anybody have an address to get these repaired? 
It is an older Sears type (300 watt/brown), not the RS "cost-reduced" kind.

					Ron Fletcher
					AT&T Bell Laboratories
					Middletown NJ
					att!mtuxo!mtgzy!rlf