Schematic Diagram -Pre Section; Printed Wiring Board -Pre Section - Sony xm-752eqx Service Manual

XM-752EQX
3-4. SCHEMATIC DIAGRAM — PRE SECTION —
(Page 13)
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 / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• 2 : nonflammable resistor.
• U : B+ Line.
• V : B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12V and REMOTE terminals.
• Voltage is dc with respect to ground under no-signal
condition.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F : AUDIO
• Semiconductor
Location
Ref. No. Location
IC102 A-5
IC103 B-5
IC104 B-3
IC111 A-2
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
– 15 –
3-5. PRINTED WIRING BOARD — PRE SECTION —
(Page 11)
(Page 13)
– 16 –