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TU BOARD
EXT ANT
SWITCH BOARD
1
1-676-091
11
1-677-033-
(11)
11
04
MAIN BOARD
CNP306
MW/LW
ANTENNA
FM EXT
ANTENNA
FM ANTENNA
SELECTOR
FM TELESCOPIC
ANTENNA
S1
S1
J1-2
J1-1
EXT
TUNER
UNIT
ANT1
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
14
MAIN BOARD
CN302
TP(VT)
ZS-2000
– 31 –
– 32 –
6-6. PRINTED WIRING BOARDS — TUNER SECTION —
• Refer to page 24 for Circuit Boards Location.
D1
D-7
D2
D-7
D3
D-7
D4
D-7
D5
D-7
D6
D-7
D7
J-4
D8
J-4
D10
D-4
IC1
G-4
IC2
H-6
Q1
F-6
Q2
G-7
Q3
H-4
Q4
D-5
Q5
D-6
Q6
C-4
Q7
D-5
Q8
C-5
Q9
D-4
• Semiconductor
Location
Ref. No.
Location
Common Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
Common 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.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• 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/LW
J
: CD
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
(Page 44)
(Page 44)