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Diagrams 41
Schematic Notes
Notes that apply to all schematic sheets are given as follows:
•
All resistors are in ohms
±
1%, 1/8W, unless otherwise specified.
•
All capacitors are in microfarads unless otherwise specified.
•
An asterisk negates a signal name. For example, WR appears on the schematic as
WR*.
•
Signal line destinations are given inside the parentheses at the end of the signal lines. For example, RDY (S0lA5),
indicates that the
RDY
signal continues on schematic sheet 01 at grid coordinates A, 5. Coordinates are labeled on the
schematic border.
•
Signal lines that are terminated by flags continue onto other sheets. Note that flags do NOT indicate signal flow
direction.
•
Signal lines without flags go to another location of the same schematic sheet.
•
Test points on the schematic sheets (e.g. TP3) identify the location of the test points used in the troubleshooting
procedures in Chapter 4.
•
Voltages and waveforms shown on the schematics are obtained when following the troubleshooting procedures in
Chapter 4.
Содержание 66000A
Страница 20: ......
Страница 23: ...Troubleshooting 23 Figure 4 1 Overall Troubleshooting Sheet 1 of 7...
Страница 24: ...24 Troubleshooting Figure 4 1 Overall Troubleshooting Sheet 2 of 7...
Страница 25: ...Troubleshooting 25 Figure 4 1 Overall Troubleshooting Sheet 3 of 7...
Страница 26: ...26 Troubleshooting Figure 4 1 Overall Troubleshooting Sheet 4 of 7...
Страница 27: ...Troubleshooting 27 Figure 4 1 Overall Troubleshooting Sheet 5 of 7...
Страница 28: ...28 Troubleshooting Figure 4 1 Overall Troubleshooting Sheet 6 of 7...
Страница 29: ...Troubleshooting 29 Figure 4 1 Overall Troubleshooting Sheet 7 of 7...
Страница 30: ...30 Troubleshooting Figure 4 2 Bias Troubleshooting Sheet 1 of 2...
Страница 31: ...Troubleshooting 31 Figure 4 2 Bias Troubleshooting Sheet 2 of 2...
Страница 32: ...32 Troubleshooting Figure 4 3 ROM Microprocessor Troubleshooting...
Страница 43: ...TP 0 TP 1 TP 2 TP 4 TP 5 TP 8 TP 7 TP 9 TP10 TP11 TP12 TP13 COM TP14 TP 3 TP 6...
Страница 44: ......
Страница 45: ......
Страница 46: ......
Страница 47: ......
Страница 48: ......
Страница 50: ......