CFS-828SMK2
14
14
6-3. PRINTED WIRING BOARDS — TUNER SECTION — • Refer to page 12 for Circuit Boards Location.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• 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.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
TUNER SECTION
no mark : FM
(
) : MW
<
> : SW
MAIN SECTION
no mark : FM
(
) : PB
<
> : REC
[
] : DUBBING
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: MW
h
: SW
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Common Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
Q2
L4
L5
L6
L7
L8
T1
CF1
S1
Q1
IC1
L2
L3
D3
D1
D2
CNP1
ANT1
CF2
C33
C34
C35
C38
C32
C43
C22
R11
C31
C37
R7
R6
C36
C46
C45
C11
C41
C24
C23
C7
R9
C28
C47
C26
C25
L10
L1
C2
C10
R2
R3
R4
R8
C40
C39
C30
C5
C6
C3
CT3
CV3
CV1
CT1
CV4
CT4
CV2
CT2
C4
C12
C9
C8
R10
C20
C21
C16
C15
C17
C18
C13
C19
C14
R1
JW1
JW2
JW4
JW5
JW6
JW7
JW8
JW10
RV1
C49
L9
L2
JW9
JW11
JW12
CT8
CT6
C50
JW3
W2
W1
W3
RV2
R13
R12
C1
RED
RED
RED
WHT
BLU
WHT
BLU
YEL
BLK
WHT
BLU
D1
C-2
D2
C-2
D3
E-3
IC1
G-8
Q1
E-5
Q2
H-9
• Semiconductor
Location
Ref. No.
Location
(Page 16)
: Uses unleaded solder.
Summary of Contents for CFS-828SMK2
Page 37: ...37 CFS 828SMK2 MEMO ...
