• Circuit Boards Location
SENSOR board
SERVO board
SUB board
KEY board
MAIN board
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•z : Through hole.
•f : internal component.
•b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)
Caution: |
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Pattern face side: | Parts on the pattern face side seen from |
(Conductor Side) | the pattern face are indicated. |
Parts face side: | Parts on the parts face side seen from |
(Component Side) | the parts face are indicated. |
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Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
•All resistors are in Ω and 1/4 W or less unless otherwise specified.
•% : indicates tolerance.
•f : internal component.
•C : panel designation.
Note: The components identified by mark 0or dotted line with mark 0are critical for safety.
Replace only with part number specified.
•U : B+ Line.
•Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords.
•Voltages are taken with a VOM (Input impedance 10 MΩ ). Voltage variations may be noted due to normal produc- tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc- tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
E : MD PLAY
F : FM
f : MW/LW
L : BUS AUDIO IN
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