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- Short: Build a 2 meg Agnus board for 500/2000
- Type: hard/hack
- Uploader: ttmap@struad.cts.com
- Author: ttmap@struad.cts.com
-
- Here is the revision information for those wanting to know what the
- difference is between the versions.
-
-
- Rev 5.0d4 21-Nov-93
-
- 1. Double oops! There was another mistake in the file
- "PAL-NTSC_SWITCHER.IFF". The resistor and wire were shown to be
- connected to the wrong pin of the PLCC plug. The error in this
- diagram will cause no damage, but will simply cause the computer
- to think there was a memory error, and put up a red screen, when
- set for NTSC mode. Reconnecting the wire and resistor to the
- proper pin will fix the problem. The file "PAL-NTSC_SWITCHER.IFF"
- has ben updated to version 2.0 which shows the proper connection.
-
-
- Rev 5.0d3 23-Sep-93
-
- 1. Initially we said that the 8375 Agnus would not work. This used to
- be correct. However, there is a new Agnus marked 8375B that has a
- part number of 318069-03. This is the only version of the 8375
- Agnus that will work. It must say part number 318069-03 or it will
- not work. The 8372B Agnus still works fine, and it also has a part
- number of 318069-03. The text file "TTMAP50D.DOC" and picture file
- "TTMAP50D_PARTS1.IFF" have been changed to reflect the new Agnus
- option.
-
-
- Rev 5.0d2 8-Sep-93
-
- 1. Oops! This is what we get for working on a diagram late at night.
- In the picture file "PAL-NTSC_SWITCHER.IFF" one of the wires that
- connected the switch to the board was on the wrong side of the
- resistor. This has been fixed in the diagram.
-
-
- Rev 5.0d1 7-Sep-93
-
- 1. We were able to buy most of the parts in bulk which decreased the
- cost. This is reflected on the order form price list.
- 2. We were able to get very good pricing on the 2 megabyte Agnus chip
- and include it as an option. This is shown on the order form.
- 3. We included an IFF diagram showing how to add a PAL/NTSC switcher.
- This diagram is the picture file "PAL-NTSC_SWITCHER.IFF"
- 4. The label on the 256x4 RAM chip in the picture file
- "TTMAP50D_PARTS1.IFF" incorrectly said "PAL". We changed it to
- corectly say "256x4".
-
-
- Rev 5.0d 21-Aug-93 Initial release
-
- 1. No changes. This was the first release.
-
-
- ============================= Archive contents =============================
-
- Original Packed Ratio Date Time Name
- -------- ------- ----- --------- -------- -------------
- 45002 16517 63.2% 21-Nov-93 23:38:56 pal-ntsc_switcher.iff
- 2179 1020 53.1% 21-Nov-93 23:48:34 READMEFIRST
- 52249 17050 67.3% 28-Sep-93 22:33:34 ttmap50d.doc
- 59104 18126 69.3% 19-Aug-93 21:11:10 ttmap50d_assembly.iff
- 109640 27968 74.4% 19-Aug-93 21:10:44 ttmap50d_board.iff
- 34086 12237 64.0% 19-Aug-93 21:10:38 ttmap50d_clip.iff
- 57392 19687 65.6% 19-Aug-93 21:10:30 ttmap50d_logic.iff
- 6985 1303 81.3% 20-Aug-93 21:28:48 ttmap50d_pal.pld
- 49148 14107 71.2% 23-Sep-93 19:53:44 ttmap50d_parts1.iff
- 36330 11262 69.0% 06-Sep-93 13:29:18 ttmap50d_parts2.iff
- 34300 11483 66.5% 19-Aug-93 21:10:02 ttmap50d_probes.iff
- 67604 19912 70.5% 19-Aug-93 21:09:54 ttmap50d_schematic1.iff
- 63778 15557 75.6% 19-Aug-93 21:09:46 ttmap50d_schematic2.iff
- -------- ------- ----- --------- --------
- 617797 186229 69.8% 04-Dec-93 11:23:56 13 files
-