The Complete Amiga 1200 User Guide by Peter ... - TU Berlin

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Upgrading the Kickstart and WorkbenchThe Amiga A1200 can be upgraded to latest Kickstart and Workbench as follows:From To RequirementsW orkbench 3.0 W orkbench 3.1 Kickstart 3.1W orkbench 3.0 or 3.1 W orkbench 3.5 / 3.9 Kickstart 3.1, 6M RAM,68020 processor, Hard Disk,CD ROMIn most cases a new Kickstart ROM Chip set needs to be installed.You can also replace the old OCS chips with ECS (Enhanced Chip Set) but you cannot install AGAChip Set.Instructions1. Place the A1200 unit upside down on a flat surface.2. Use a screwdriver to remove the five case screws.3. Turn the unit to normal, face front position. Do carefully flip backwards the top cover and thenthe keyboard assembly.IMPORTANT: Take care not to damage the cables to the top cover or the ribbon cables to thekeyboard assembly.4. The main printed circuit board - protected by a shield - is now in full view.5. The operating system ROM ICs are labelled and located at position U6A (under) and U6B(upper), just at the blank of the shield. The old ROM chips should be marked: @1992 V3.039.1066. Note the orientation of the old operating system ROMs, then remove them from the socket.7. IMPORTANT: You should be aware of the fact that there are spare pins at the sockets. Youhave to align the ROM ICs to the right side of the sockets so that there are spare pins at the leftof the ROM ICs.8. Align the 3.1 ROMs with socket U6A and U6B, and press firmly into place. Be cautious not tobend pins.9. Installation is now complete.24
The MotherboardThe Amiga 1200 has had several revisions including 1A, 1B, 1D1, 1D3, 1D4, 2B. A Picture of theA1200 1D4 motherboard is shown below.From the top:PCMCIA slot for 16 bit memory cards and Network cards.IDE connector - Supports 2.5" Hard drives natively but can support larger 3.5" drives with a converterALICE chip - Supports 2MB of Chip RAM, the Blitter and 25 DMA channels (large left hand chip)GAYLE chip - IDE controller chip (large middle chip)LISA chip - Supports AGA chipset, 256 colours, HAM8, Sprites etc (large right hand chip).BUDGET chip - Supports DRAM and Bus Controller (Center of board with VLSI on it)Keyboard MPU - The keyboard controller shipMotorola 68EC020 - Main Central Processor (surprisingly one of the smallest chips)25
Page 2 and 3: ContentsIntroduction Page 3Setting
Page 4 and 5: Setting up the Amiga for First Time
Page 6 and 7: Guide to Workbench 3.0Contents1. Th
Page 8 and 9: Removes the positioning information
Page 10 and 11: the date and whether to set an alar
Page 12 and 13: 3.3.1 ShowConfigThis program displa
Page 14 and 15: 3.4.4 PrinterPSThis preference set
Page 16 and 17: 3.4.9 TimeThis sets the current dat
Page 18 and 19: Image: Positive, NegativeAspect: Ho
Page 20 and 21: Beyond Workbench 3.0Workbench has b
Page 22 and 23: Typhoon 030Uses a 40MHz 68030, opti
Page 26 and 27: Kickstart ROM Chips - The A1200 had
Page 28 and 29: Click on Partition Drive and you sh

The Complete Amiga 1200 User Guide by Peter ... - TU Berlin

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