Re: //c power supply

[rfka01@gmx.de (rfka01)]

...
> : Robert wrote:
> :
> : >I have a //c without the regular power brick. I'm trying to
>  run it off
> : >a PC Peripheral power connector (5,25" floppy, HD). From it's
>  specs,
> : >the PC supply should yield 12V/3A.
> : >After consulting some sites, I think I have the connection on
>  the
> : >Apple side OK.
> : >When I switch on the machine, I get a green light for power,
>  the
> : >screen shows "Apple //c", the drive does it's headbanging
>  exercise and
> : >the red light comes on.
> : >Apart from that, nothing. I've tried different disks. The
>  keyboard is
> : >dead apart from the reset and drop into monitor commands.
> : >Now for the question (finally): Do you think the Apple is dead
>  or am I
> : >missing something with the power supply?
> :
> : The //c is spec'd to run off a 12v battery, so that shouldn't
>  be a
> : problem.
> :
> : The behavior you describe is completely consistent with a
>  dirty,
> : off-speed, or otherwise malfunctioning disk drive.
> :
> : If you can reset into Applesoft and write a simple BASIC
>  program,
> : then I'd consider the computer to be fundamentally functional.
> : The disk drive, not so much...
> 
> Ah-ha! In light of this new info, this is cognescent of a loose
> or partially disconnected drive cable. Open up the IIc and check
> that the cable between MB and floppy drive are tight and fully
> seated in both ends.  Hope this solves the issue.  :o)
> 
OK, I'm risking a double post, but the one I thought I had written
doesn't show up:

I have opened the //c, taken out the internal drive and plugged the
machine in again.
I get the "Apple //c", can use Ctrl-Reset for a prompt and
Ctrl-Apple-Reset for Reset. Apart from that, the keyboard is dead.
What is normal debugging procedure from here?

TIA, Robert