Inter-m QX-4960, Service Manual

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1
Electrical Adjustment Procedure 1
Specifications
2
Electrical Parts List 3, 4
Top and Bottom View of P.C. Board
5, 6
Wiring Diagram 7
Block Diagram 8
Schematic Diagram 9, 10, 11, 12
Exploded View of Cabinet & Chassis / Mechanical Parts List 13, 14
Ass’y Drawing 15, 16
CONTENTS
IDLE CURRENT
A. Setting
Set the master volume minimum.
B. Connection
C. Adjustment
– Adjust VR301 so that the current through the R237, R236, R342, R343 become 10 milliampere.
– When that voltage across the “TP1” to “TP2” becomes 10 millivolt, the current becomes 10
milliampere.
ELECTRICAL ADJUSTMENT PROCEDURE
TP1 TP2
R237
R342
R236
R343
VR201 VR301
AMP B’D
VOLT METER