Table of Contents
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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
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
V
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