So, at first the screen was not even turning on. Then, I replaced the battery in my LC 475 and the screen turned on with the cursor. Nothing else. No ideas on what to do.
Is that the lithium battery?
Or can you show me a diagram of where it is.
Ok, before I try it out, I have 3 more questions...
1. Will I ever connect all of the cables back?
2. What happens if it is a capacitor leak?
3. Could it be a hard drive problem?
Thanks!
disconnect the hard drive power and data cables, disconnect the floppy drive cable and attach the power supply cable and the monitor (do not refit anything else including mouse and keyboard) and power on.
You SHOULD eventually see the floppy disk icon after a minute or two. If you don't then I'd suspect leaked capacitors on the motherboard.
Though I said in an earlier post that I already replaced the battery and that got me to the white screen w/ a cursor.
The hard drive may be missing or "not ready". If you leave it on, do you eventually get a floppy icon with a flashing question mark? It may take a minute or two.
Again, identifying the sounds made by JUST the hard drive, and a picture of the machine with the top off, may be helpful.
I got the usual start up Bong followed by two sets of tones....
..(BONG diddle diddlle diddle up and diddle diddle down again tones!) except this time I did the old engineers test (stick- one end to ear and other end to HDD) and nothing seems to be moving in there.
Thanks MacTech
First the odd chimes - exactly right! The second (didle idle) is that one chime. So that narrows down the problem but doesnt the absence of a working PRAM battery create that set of sounds anyway? If we set that aside first... wont it make the cause of any others easier to isolate....?
I have no PRAM battery in and the screen is no longer connected (nor the SCSI ext HDD, nor the speaker, keyboard etc.) and I still get the same sounds. (after the attached photo!)
The two banks of SIMMs were added and worked fine until we put it away.... n years back... but I will remove them and try again... after the new battery arrives? Same for the VRAM, do you suggest?
So far as the Caps are concerned I have our US MI friends chart and none seem to have leakages or fluid around their bases and all look fine. (photo supports?) I have a long handled paintbrush with long staple hairs and dusting around their bases the dust comes away and all is dry. Is this a fair test? I have not yet dared to remove the MB and assume thats the only way to look for tracking or blackened solder joins....
On the HDD point... if it is stuck.... it is obviously not going to help and I will remove it and start to warm it, ready with the heavy handled screew driver as you suggest ;-) later.
I dont want to spend £s on a new Disk until I know the LC475 is going to work!
My aim is to get it to a point where it can act as my Desktop (replacing a PISMO). If it will cope I will look to up the processor and the VRAM and RAM. I may also need to find a more recent screen - the old white domed iMac (still in the garage) would have been ideal but Im not sure its practical....
Thanks for your expert advice!
Colin
Cambs UK