dorian@pawl.rpi.edu (Dorian S. Garson) (06/27/89)
I have here a mangled Disk ][ (second revision, I think) controller card that I need to repair. It is missing the components at positions C5, C2, and Q1. Can someone please tell me what capacitors and transistor used to reside there? I would be eternally endebted to anyone who can offer assistance. -Dorian-> |\ /\ ARPAnet: DORIAN@PAWL.RPI.EDU | \/ __ | /\ / FoNet: (201) 254-0469 |/ \/ SloNet: 6 Brandywine Drive, East Brunswick, NJ 08816
marc@lakesys.UUCP (Marc Rassbach) (06/27/89)
In article <5696@rpi.edu> dorian@pawl.rpi.edu (Dorian S. Garson) writes: >I have here a mangled Disk ][ (second revision, I think) controller card >that I need to repair. It is missing the components at positions >C5, C2, and Q1. Can someone please tell me what capacitors and transistor Dig Mode ON Gee, all you have to do is look in the DOS users manual that Apple sent out with all of the Apple ]['s that bought DOS. Wait a minute.... You must be one of these new users, the ones who have to spend $200+ to get the same level of documentation the ][+ owners used to enjoy. Dig Mode OFF What ever happened to the OLD apple???? C5 - 0.1 uf decoupling cap. Monolythic C2 - 22 uf electrolytic Q1 - MPSU51 (GE/RCA ECC subs are about.....) -- Marc Rassbach marc@lakesys If you take my advice, that "I can't C with my AI closed" is your problem, not mine! If it was said on UseNet, it must be true.
rich@pro-exchange.cts.com (Rich Sims) (06/27/89)
Comment to message from: pnet01!crash!csd4.milw.wisc.edu!leah!rpi!pawl3.pawl.rpi.edu!dorian (Dorian S. Garson) > I have here a mangled Disk ][ (second revision, I think) controller card > that I need to repair. It is missing the components at positions > C5, C2, and Q1. Can someone please tell me what capacitors and transistor > used to reside there? How about 2 out of 3 and a "nudge" in the right direction? :-) C2 is a 16v, 22uf electrolytic Q1 is a 2N3906 C5 is a, errr, uhh... well, anyhow, it's the same as the ones at C3, C4, and C6 NOTE: The above applies to my card... no guarantees on anyone else's! Rich Sims UUCP: crash!pro-exchange!rich ARPA: crash!pro-exchange!rich@nosc.mil INET: rich@pro-exchange.cts.com
Kreme@cup.portal.com (Lewis Kreme Butler) (06/28/89)
C5 is the same peice as c4. C2 is A9334PC Chip, Q1 is a 2N-3906 Transistor. This is straight of my (c)1978 Disk ][ Interface card. |----------------------------------------------------------------------------| | kreme@cup.portal.com | "And then I realized why God had sent His beast to | |----------------------| hound me so. He sought to weaken me. He sought to | | The real cycle you're| tire me out before I got to Him. God was scared of | | working on is a cycle| me -- the little wuss." | | called 'yourself' | Eppy Thatcher, Grendel | | Robert Pirsig |-----------------------------------------------------| ------------------------
ernies@pro-generic.cts.com (Ernie Spiteri) (06/28/89)
Network Comment: to #2736 by pnet01!crash!csd4.milw.wisc.edu!leah!rpi!pawl3.pawl.rpi.edu!dorian C5-cap with value 104, c2-16v 22uf electrolytic, q1- 250 9012H hope this helps