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4. TEST POINTS AND LOCATIONS....................................................................3-20
Part 4: Troubleshooting
1. TROUBLESHOOTING......................................................................................4-1
1.1 No Power ..................................................................................................4-1
1.2 No Sound..................................................................................................4-6
1.3 No Picture .................................................................................................4-7
2. CONTROL PORT FUNCTIONS .......................................................................4-9
2.1 System Control & I/O Port Functions........................................................4-9
3. WAVEFORMS ..................................................................................................4-11
4. IC BLOCK DIAGRAMS.....................................................................................4-14
Part 5: Parts Catalog
Part 6: Electrical Diagrams
1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM..............6-1
2. PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC..................................6-3
Circuit Block Diagram........................................................................................A1
Power Supply Lines ..........................................................................................A2
Schematic Diagrams.........................................................................................A3
Printed Wiring Board Diagrams.........................................................................A10
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