Path: utzoo!utgpu!watmath!att!tut.cis.ohio-state.edu!mailrus!bbn!usc!apple!apple.com!parent From: parent@apple.com (Sean Parent) Newsgroups: comp.sys.mac Subject: Re: ImageWriter II TEST Message-ID: <3590@internal.Apple.COM> Date: 15 Aug 89 22:58:06 GMT References:Sender: usenet@Apple.COM Organization: Apple Computer, Inc. Lines: 28 In article bannon@andromeda.rutgers.edu.rutgers.edu (Ronald Bannon) writes: > After pressing the ON/OFF & SELECT switches simultaneously my ImageWriter II > spits out the following message: > ########################################## > > LOOP TEST > > ROMREV(05) > > DIPSW1(00000100) DIPSW2(1100),'1=ON,0=OFF' > > RAM= 0 KB AT=OFF > > > > > LOOP BACK TEST FAILS > > ########################################### > Is the 'LOOP BACK TEST FAILS' normal? I believe that a special cable is required to run the Loop Back Test. The test is most likely to test the serial port and requires a cable that Loops back the output to the input. Sean Parent