Yamaha AX-497 Instrukcja serwisowa - Strona 11
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- 1. Table of Contents
- 2. Important Notice
- 3. To Service Personnel
- 4. Impedance Selector
- 5. Remote Control Panel
- 6. Front Panel
- 7. Rear Panels
- 8. Specifications
- 9. Internal View
- 10. Disassembly Procedures
- 11. Adjustment
- 12. IC Data / Block Diagram
- 13. Pin Connection Diagram / Printed Circuit Board
- 14. Parts List
- 15. Exploded View
- 16. Remote Control Rax15
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ADJUSTMENT
CONFIRMATION OF IDLING CURRENT
1. Right after the power is turned on, confirm that the volt-
age across the terminals of R64 (L ch) and R65 (R ch)
are between 0.1mV to 10.0mV.
2. If the measured voltage exceeds 10.0mV, open (cut off)
R51 (L ch), R52 (R ch) and reconfirm the voltage.
3. Confirm that the voltage is between 0.25mV and 30.0mV
after 60 minutes.
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R64 (L ch)
R65 (R ch)
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2 9
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0.1mV–10mV
Q Q
3
6 7
1 3
1 5
R64
R65
R51 R52
co
.
9 4
2 8
Cut
R51 (L ch)
R52 (R ch)
0 5
8
2 9
9 4
2 8
m
AX-497
9 9
9 9
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