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- Newsgroups: comp.os.cpm
- Path: sparky!uunet!ulowell!woods.ulowell.edu!welchb
- From: welchb@woods.ulowell.edu
- Subject: Amstrad word processor -- groan.
- Message-ID: <1992Aug17.092920.1@woods.ulowell.edu>
- Sender: usenet@ulowell.ulowell.edu (News manager - ulowell)
- Organization: University of Lowell
- Date: Mon, 17 Aug 1992 14:29:20 GMT
- Lines: 22
-
- I had hoped that this message would be a final one of thanks,
- to all the people who had given me various advice about my old Amstrad
- word processor; the delay was due to the long time it took to obtain
- the proper 3.5 disk drive.
- I hooked things up as instructed, and turned on the switch, only
- to get absolutely nothing. I have taken the beast even further apart than
- it was before I tried adding the 2nd drive; still -- nothing.
- The trouble seems to be that the 5 volt output is about 3 volts,
- and the 12 volt output is about 5; the 24 volts is ok. There is no raster;
- I suspect there is no high voltage on the CRT (I can't hear it); and the
- voltages there are something I do not like to even get near.
- So, on an outside chance, if anyone has access to the schematic
- of the power supply-video board of an Amstrad, I will pay you to make
- a copy. I suspect that the diagram is basically the same for all models;
- mine was a PCW8256 (or was it? I took all the stuff home from work).
- Also, maybe someone can answer this question. In normal operation,
- does the CRT require a signal coming back from the computer board before
- it starts operating? If so, can I trick it into operation? (I am trying
- to find out if the high voltage supply of the CRT is what is loading
- down the power supply.)
- --
- Brendan Welch, UMass/Lowell, W1LPG, welchb@woods.ulowell.edu
-