HP Integral : running !

[Tony Duell]

> 
> At 03:59 AM 3/13/05 +0000, you wrote:
> >
> >BTW, there are 4 LEDs on the control board, visible through a slot in the 
> >cover. These should all be on -- they're connected to the +ve and -ve PSU 
> >control board supplies (I can't rememebr if before or after the 
> >3-terminal regualtors) and one supply derrived from each main chopper.
> 
>    That's interesting! They're not mentioned in the service manual and
> they're not shown in the schematic. Are they visible without taking the IPC
> apart? I should take a close lot at mine and see if they have them.

Sorry, I am talking about the 9845 PSU here, not the Integral (it sort of 
topic-drifted). In the 9845, the LEDs are visible on top of the PSU 
casing with the top cover of the machine removed.

There are no LEDs on the Integral PSU. The Integral PSU is a very 
conventional SMPUS, actually. The only odd feature is that triac to blow 
the fuse if you connect it to 230V mains when set to 115V.

-tony