CFD-S39
– 29 –
6-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 41 for IC Block Diagrams.
– 30 –
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
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
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
• 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 : TAPE PB
(
) : TAPE REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: FM
E
: TAPE PB
a
: TAPE REC
(Page 38)
(Page 32)
(Page 24)
(Page 33)
Ref. No.
Location
D302
C-5
D303
H-5
D351
D-3
D501
E-6
D502
E-7
D590
D-7
D591
E-7
D951
H-5
D952
H-5
D953
I-4
D955
H-5
D957
I-5
IC301
F-5
IC303
I-7
IC304
I-8
• Semiconductor Location
Ref. No.
Location
IC501
C-8
IC502
D-6
IC503
B-10
IC701
H-13
IC702
H-11
IC703
E-13
Q301
C-5
Q311
F-9
Q312
F-10
Q313
G-10
Q321
C-6
Q322
C-5
Q323
C-5
Q324
C-5
Q325
C-4
Ref. No.
Location
Q326
C-5
Q501
D-8
Q502
D-8
Q503
C-12
Q505
B-10
Q506
B-10
Q701
I-12
Q951
G-4
Q952
H-4
Q953
I-4
Q954
H-4
Q955
I-4
Q957
I-5
Q958
E-4
Q959
E-4
Q960
D-5
(Page 39)
