Schematic Diagram - Sony MDR-IF120 Service Manual

MDR-IF120/IF 120K
3-2. SCHEMATIC DIAGRAM
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e IC Block Diagram
Note:
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e All capacitors are in uF unless otherwise noted. pF: yyF
50 WV or less are not indicated except for electrolytics and ICO1 BA3308
tantalums.
¢ All resistors are in Q and '/,W or less unless otherwise
specified.
« % : indicates tolerance.
e : B+ Line.
e [(__] : panel designation.
¢ [C_] : adjustment for repair.
e
Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack.
e Voltages are dc with respect to ground under no-signal con-
ditions.
e Voltages are taken with a VOM (10 MQ/V).
Voltage variations may be noted due to normal production
tolerances.
e Signal path.
c> : RF signal
&> : AUDIO signal