Schematic Diagram -Panel Section - Sony XR-4880 Service Manual

XR-4880
Q Q
6-5. SCHEMATIC DIAGRAM — PANEL SECTION — 3 7 6 3 1 5 1 5 0
• Refer to page 25 for Printed Wiring Board.
(Page 23)
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L 1 3 9 4 2 2 9 6 5 1 3
w w w
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.
• ¢ : internal component.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
x a o
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
. i
no mark : FM
< > : TAPE PLAYBACK
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tol-
erances.
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3 7
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tol-
u 1 6 3
y
erances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM (MW)
E
: TAPE PLAYBACK
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6 3 1 5 1 5 0 8 9
m
c o
.
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