| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 4463.1 | RGB - B? | TLE::TLET8::ASHFORTH | The Lord is my light | Mon Jan 28 1991 14:23 | 6 |
| I dunno- ate too many hot dogs in front of the Amiga?
Seriously, I've never seen this, but it occurs to me that an RG combination
without any "B" component could be responsible. Loose connector, perhaps?
Bob
|
| 4463.2 | Excerpt from old "repair tips" note... | BOMBE::MOORE | Amiga: Real computing on a PC budget | Mon Jan 28 1991 14:41 | 34 |
| Subject: Screen colors and other boot things
Dark gray Ok Hardware
Light gray Ok Software
Red Bad ROM Checksum
Green Bad RAM
Blue Bad Custom Chips
Yellow Exception
(INITIALIZATION FROM OS ROMS)
Clear Chips
Disable DMA and Interrupts
Clear the Screen
Check the Hardware
Pass or fail the Hardware to the Screen (BLUE|BAD) (DarkGray|OK)
Checksum the ROMs
Pass or fail the ROMs to the Screen (RED|BAD) (LightGray|OK)
System setup (..is finished)
Check the RAM at $C00000
Move SYS_BASE to $C00000 if it exists
RAM Test ; hummm.... not very good though needs to indicate hex location
Pass or fail the RAM to the Screen (LED Blinks 9short 1long | GREEN | BAD)
Check the Software
Pass or fail the Software to the Screen (Yellow|BAD) (LightGray|OK)
Set up the RAM
Link the Libraries
Find External RAM and link it to the list
Set up Interrupts and DMA (for boot drive especially)
Start default Task
Check for 68010, 68020, and 68881
Check for an Exception (System Alert?)
System Reset (..Let the good times roll!)
|
| 4463.3 | Exception? | DICKNS::MACDONALD | VAXELN - Realtime Software Pubs | Mon Jan 28 1991 15:24 | 2 |
| Thanks. What is an "exception?"
|
| 4463.4 | Mem card | AYOV27::CWILL | My sandwich is empty... | Tue Jan 29 1991 03:23 | 10 |
| Have you an extra memory card ?
I got a yellow screen once, tried rebooting many times, then removed
my extra 1/2 meg and it booted fine. So I thought 'uh oh naff card'.
Luckily using the full extent of my technical hardware skills I
fixed the memory card ( apparently all it required was for me to
blow on it and shake it in the air ).
Seriously I presume it must have worked its way loose.
|