Labels: text | diagram | plan | font | schematic | technical drawing | line | number OCR: Overscan + + Normalmode 6 5 4 Modulatorpins of the old ST 520 change 7 5 4 Modulatorpins atthe 520 STM over +5Volt HSync VSync switch 100 n 10 K 2 * 1N4148 cable 3 Composite BC 550or simularly type Sync solder cable 2 here C16 1 K Ohm MFP 68901 MMU L26 cable 2 DE-Input to MMU and Shifter cable 1 DE-Signal cut trace here Glue solder cable 1 here PIC 1 Modification Circuit Board Reversion F
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