HP Draftmaster RX pen plotter needs love

2016-11-11 Thread Michael Newton
I acquired a working HP Draftmaster RX (HP part # 7596B). An awesome machine, 36" roll feed and 8 pens, complete with several pen carousels, user manual, and hundreds of working pens. I was very excited to make a splash in the art world with this thing. I did get it to perfectly draw a 3 color de

Re: HP Draftmaster RX pen plotter needs love

2016-11-11 Thread Michael Newton
, Nov 11, 2016 at 3:38 PM, Alexandre Souza < alexandre.tabaj...@gmail.com> wrote: > How is the power supply? All rails ok? Input/output capacitors not bulged > nor leaked? > > 2016-11-11 21:36 GMT-02:00 Michael Newton : > > > I acquired a working HP Draftmaster RX (HP p

Re: HP Draftmaster RX pen plotter needs love

2016-11-16 Thread Michael Newton
int and there is nothing there ? > > If +5 is 400mV high, that's not dangerous but it is something I'd take care > of first. > > -pete > > On Fri, Nov 11, 2016 at 8:35 PM, Michael Newton > wrote: > > > Thanks for the encouragement. I'm going in. >

Re: HP Draftmaster RX pen plotter needs love

2016-11-18 Thread Michael Newton
On Thu, Nov 17, 2016 at 12:10 AM, Brent Hilpert wrote: > On 2016-Nov-16, at 11:34 PM, Michael Newton wrote: > > > That's right, there is a -5v test point that reads zero. > > From the previous discussion, presumably you mean -12V. Yes -12v, sorry > > Any gui

Re: HP Draftmaster RX pen plotter needs love

2016-11-22 Thread Michael Newton
hat seems like too much for me to ask. If there is someone within driving distance of Seattle who could get this thing working I will pay them what their time and effort is worth (I'm trying to avoid shipping this monster or buying anyone plane tickets). thanks M. On Fri, Nov 18, 201

Re: HP Draftmaster RX pen plotter needs love

2016-11-30 Thread Michael Newton
e above and see where things stand. > I'm not all that far away (Victoria area) but far enough to nonetheless be > awkward for transport or trip. > > > On 2016-Nov-22, at 1:16 PM, Michael Newton wrote: > > I appreciate the guidance so far, thanks very much. > > > >

Re: HP Draftmaster RX pen plotter needs love

2016-11-30 Thread Michael Newton
n and out a bit. M. On Wed, Nov 30, 2016 at 5:48 PM, Michael Newton wrote: > You were correct, I was looking for the -12v in the wrong place. I did > find -12v on the anode of CR2. So all voltages are correct at the test > points. > > So the LCD shows nothing and the dev