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CFS-515L
r
Circuit Boards Location
POWER (AC) board
POWER (DC) board
BATT (+) board
BATT (–) board
TUNER board
REC SW board
MAIN board
VOL board
ECM board
D417
H-10
D418
H-10
D419
H-10
D420
H-10
IC101
F-7
IC201
D-7
IC301
E-9
IC302
G-10
Q101
F-11
Q201
F-10
Q301
G-7
Q302
H-9
Q303
C-8
Q304
C-8
Q305
F-10
Q306
D-8
Q307
G-9
Q401
H-11
Q402
H-11
D301
H-7
D302
G-7
D303
G-8
D304
D-8
D305
G-8
D306
G-7
D401
F-11
D402
G-11
D403
F-11
D404
F-11
D405
G-11
D406
F-11
D407
F-11
D408
G-11
D409
F-11
D410
F-11
D411
G-11
D412
F-11
D413
F-11
D414
G-11
D415
F-11
D416
H-10
Ref. No.
Location
r
Semiconductor Location
Ref. No.
Location
Note on Schematic Diagram:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
2
: nonflammable resistor.
Note:
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PLAY
(
no mark : PLAY
(
) : 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 (L-CH)
d
: PB (R-CH)
a
: REC (L-CH)
G
: REC (R-CH)
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
• b
: Pattern from the side which enables seeing.
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