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The 571 uses a Philips M24-306GH/ED 9 inch monochrome (green) CRT, | The 571 uses a Philips M24-306GH/ED 9 inch monochrome (green) CRT, | ||
Tektronix part number 119-3795-00. | Tektronix part number 119-3795-00. | ||
===ROMs and Programmable Logic Devices=== | |||
There are three 27256 ROMs on the 571 Main Board: | |||
U502 V1.1 160-6993-01 | |||
U503 V1.6 160-6992-06 | |||
U607 V1.1 160-6991-01 | |||
There are two smaller decoder chips in 20-pin DIP (300mil) packages, likely to be 16V8 GAL/PAL: | |||
U507 160-7046-00 | |||
U509 160-7045-00 | |||
These are soldered in. | |||
==Specifications== | ==Specifications== | ||