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Dying PSU ? |
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asm1 (19:28 23/8/2010) Phlamethrower (19:47 23/8/2010) asm1 (19:53 23/8/2010) Acornut (22:23 23/8/2010) andypoole (08:40 24/8/2010) Acornut (09:11 24/8/2010) asm1 (09:57 24/8/2010) andypoole (19:27 24/8/2010) Phlamethrower (20:09 24/8/2010) andypoole (23:02 24/8/2010) arawnsley (22:57 24/8/2010) CJE (13:18 25/8/2010) asm1 (00:50 26/8/2010) trevj (06:21 26/8/2010) asm1 (10:44 26/8/2010) trevj (11:48 26/8/2010) Acornut (16:46 26/8/2010) trevj (06:25 27/8/2010)
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Andrew |
Message #115080, posted by asm1 at 19:28, 23/8/2010 |
Member
Posts: 122
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I was messing about with my RPC this afternoon. Realised that there was something I needed to use 4.39 for, so shut down the machine, unplugged the VGA cable from my Vpod which I use for RO 6, stuck it in the back of the Monitor port, rebooted and held down Z to stop the 'Softload'. (Yes I know I should get a VGA switcher)
4.39 appeared to boot ok, or at least what I saw of it, the picture went jaggy and the screen went black.
What I should have done at this point was plug back into the VPOD and reboot 6. What I ACTUALLY did was mess around with the CMOS (or I think I did) what happens now is, basically it boots - I get to the chime, keyboard lights up, as does floppy (test) and hard drive, but I still get nothing from the monitor.
IS no output a symptom of a dying PSU ? Everything else seems to work although I've probably ballsed up settings by R/DELETE - Power on, so it may not be booting correctly.... but I cant see.
I have a spare RPC with a refurbished PSU (mine isn't - the refurbished machine is a friends I'm supposed to be doing up lol.) I could try that, since My box is fairly "loaded" in terms of stuff connected :
VPOD UNIPOD Kinetic CDROM
and so on. I'm hoping it is the PSU, otherwise I have buggered the VIDC or something else which would mean at the very least a new motherboard.
Any ideas ?
Andrew |
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Jeffrey Lee |
Message #115081, posted by Phlamethrower at 19:47, 23/8/2010, in reply to message #115080 |
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It's possible/probable that the machine has defaulted to the 'auto detect' monitor setting. But auto detection won't work with any monitor that uses EDID (i.e. pretty much any monitor made in the last 10-15 years).
I believe the monitor type can be reconfigured the same way as on the A5000 - i.e. using these keys. |
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Andrew |
Message #115082, posted by asm1 at 19:53, 23/8/2010, in reply to message #115081 |
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Posts: 122
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I did try with those keys and havent had much luck, thats why I was wondering if I had broken something.
I also tried with my 17" crt which I am using to set up a friend's A5000. No display - the monitor doesn't go to sleep and seems active but the screen is black.
[Edited by asm1 at 19:54, 23/8/2010] |
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Blind Moose |
Message #115083, posted by Acornut at 22:23, 23/8/2010, in reply to message #115080 |
No-eye-deer (No Idea)
Posts: 487
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I've probably ballsed up settings by R/DELETE - Power on .. This will have probably reset the machine to factory default. Have you hit F12 and then *desktop then hit Return twice. In case it is already in supervisor mode (just off edge of screen) |
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Andrew Poole |
Message #115085, posted by andypoole at 08:40, 24/8/2010, in reply to message #115083 |
Posts: 5558
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I've probably ballsed up settings by R/DELETE - Power on .. This will have probably reset the machine to factory default. Have you hit F12 and then *desktop then hit Return twice. In case it is already in supervisor mode (just off edge of screen) If you need to hit F12, you're already in the desktop... |
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Blind Moose |
Message #115086, posted by Acornut at 09:11, 24/8/2010, in reply to message #115085 |
No-eye-deer (No Idea)
Posts: 487
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D'oh!.. can't all be geniuses. How about typing *Wimpmode 32 (bung it down to 800x600) then? |
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Andrew |
Message #115087, posted by asm1 at 09:57, 24/8/2010, in reply to message #115086 |
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no joy with *wimpmode 32 its as if enough of a signal is being sent to keep the monitor (whichever one I try) out of sleep mode and nothing else.
PSU is louder and rattlier than it was last night.
Will try with the "other" psu, but not now as I need to go out
Andrew |
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Andrew Poole |
Message #115090, posted by andypoole at 19:27, 24/8/2010, in reply to message #115087 |
Posts: 5558
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no joy with *wimpmode 32 its as if enough of a signal is being sent to keep the monitor (whichever one I try) out of sleep mode and nothing else.
PSU is louder and rattlier than it was last night.
Will try with the "other" psu, but not now as I need to go out
Andrew RPC PSU fans have a habit of getting noisy (specially if they've not been used for a while). It's usually not a problem. You could replace the fan, I suppose.
As for the no monitor signal.. If typing "desktop" and pressing return doesn't give you a desktop, it sounds like you may have either the monitor type set wrong or the screen mode wrong. I can't remember what the monitortype confg options are. Someone here'll probably know... |
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Jeffrey Lee |
Message #115092, posted by Phlamethrower at 20:09, 24/8/2010, in reply to message #115090 |
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it sounds like you may have either the monitor type set wrong or the screen mode wrong. I can't remember what the monitortype confg options are. Someone here'll probably know... *cough* |
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Andrew Rawnsley |
Message #115094, posted by arawnsley at 22:57, 24/8/2010, in reply to message #115086 |
R-Comp chap
Posts: 595
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It is worth mentioning that mode 32 is only available if monitortype is *configured to 4 (it isn't available in 1, 2 or 3).
When working with LCDs, it is usually a good plan to hit F12 and type
*configure monitortype 4 *configure mode 32 *configure wimpmode 32
Then reboot. (Do a Ctrl-Break)
This should ensure stuff is seen right from the get-go, even on fussy screens.
I don't know if this will help in this scenario, but I figured it might be useful information to have in the thread. |
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Andrew Poole |
Message #115095, posted by andypoole at 23:02, 24/8/2010, in reply to message #115092 |
Posts: 5558
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it sounds like you may have either the monitor type set wrong or the screen mode wrong. I can't remember what the monitortype confg options are. Someone here'll probably know... *cough* Yeah, that |
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Chris Evans |
Message #115096, posted by CJE at 13:18, 25/8/2010, in reply to message #115094 |
CJE Micros chap
Posts: 228
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Most LCDs also require *con. sync 0 |
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Andrew |
Message #115103, posted by asm1 at 00:50, 26/8/2010, in reply to message #115096 |
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Forgive me but I am going to be thick.
I cant get to the desktop which is what the hints seem to assume.
Why?
1) The machine has No HD attatched - the DEL/R power ons will have scrambled my boot *configure commands.
2) The drive with my !Boot folder on it will be "unseen" by the OS because of 1) above. I am set up to boot from the IDEFS on my UNIPod, not ADFS as normal.
3) I have del/R powered on the other risc PC SEVERAL times and it still works fine on both my CRT and TFT.
4) Assuming that I even get to a *Supervisor prompt - blind typing any/all of the above does nothing.
Which is what leads me to beleive there is more to it than *configure commands. I am about to strip the machine down and look for things like bad caps etc that could be causing VIDC to fail. First port of call will be the PSU. I'll swap that for the reconditioned one.
I'll let you all know what I find out
[Edited by asm1 at 00:58, 26/8/2010] |
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Trevor Johnson |
Message #115104, posted by trevj at 06:21, 26/8/2010, in reply to message #115103 |
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...Assuming that I even get to a *Supervisor prompt - blind typing any/all of the above does nothing... Power-on with numpad-* should leave you at the Supervisor prompt. Then ctrl-G should give the bell. Perhaps you've already tried that too. |
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Andrew |
Message #115105, posted by asm1 at 10:44, 26/8/2010, in reply to message #115104 |
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Power-on with numpad-* should leave you at the Supervisor prompt. Then ctrl-G should give the bell. Perhaps you've already tried that too. Thats the only thing I didn't try - told ya I was being thick it then allowed me to do the stuff suggested above and all now works as before
Thanks Guys!
Sorry if I sounded a bit unbeleiving - got a fright lol.
Andrew |
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Trevor Johnson |
Message #115106, posted by trevj at 11:48, 26/8/2010, in reply to message #115105 |
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Blind Moose |
Message #115107, posted by Acornut at 16:46, 26/8/2010, in reply to message #115105 |
No-eye-deer (No Idea)
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Power-on with numpad-* should leave you at the Supervisor prompt. Then ctrl-G should give the bell. Perhaps you've already tried that too. It's amazing how many times its the obvious! Almost as bad as that line from 'The IT Crowd' you know "Have you tried turning it on and off again" Still well done Trev! Or is that a line from a song? (Ian Dury And The Blockheads - Clever Trevor) |
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Trevor Johnson |
Message #115115, posted by trevj at 06:25, 27/8/2010, in reply to message #115107 |
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"Knock me down with a feather..." (Well, if I talk enough crap, some of it's bound to turn out useful some of the time!) |
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