Read Sony CFS-B5L MK2 Service Manual online
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5-6. SCHEMATIC DIAGRAM — MAIN SECTION —
CFS-B5LMK2
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
C
: panel designation.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Total current is measured with no cassette installed.
• Power voltage is dc 9 V and fed with regulated dc power
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
<
no mark : FM
<
> : PB
<< >> : REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
E
: PB
a
: REC
(Page 16)
T301
• Waveform
(MODE:REC)
1
35Vp-p
15mS
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