Date   : Mon, 11 Sep 2006 16:37:23 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: LV-ROM Repairs (or How *do* *I* repair an LV-ROM

Ian Wolstenholme wrote:
> Has anybody got any experience of repairing this mechanism
> on the Domesday player?  What would be the best approach,
> to try to fix the door on the VP415 with spares from the other
> one or "upgrade" the VP410 by transplanting the SCSI/Genlock
> bit from the Domesday one?  I don't think this was easily
> detachable from what I remember when I looked inside it.

Hmm, bad timing - I'm in the US right now so don't have the service manual 
handy :(

If you pull the tray does it then come out under its own power, or do you have 
to pull it out all the way manually? As I recall there are a couple of 
microswitches that let the player know the tray position - if the tray does 
run under its own power once prodded it may be one of these that's faulty, or 
the wiring that runs to them.

If the tray's totally dead then it looks more like the eject motor or control 
circuitry - and unfortunately I don't have the schematics this side of the pond.

Either way, I'd repair your 415 with tray mechanism bits from the 410 if I 
were you - chances are there were all sorts of changes to the player's 
firmware when they added the genlock; I'd be doubtful that transplanting the 
genlock slice to the 410 would "just work".

The 415s are pretty modularised, but ISTR there's a knack to getting it all to 
bits so you can actually start swapping modules in and out :-)

good luck!

Jules

-- 
If you've ever wondered how you get triangles from a cow
You need buttermilk and cheese, and an equilateral chainsaw