PMC-D407L
– 29 –
– 30 –
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
W
: indicates side identified with part number.
•
¢
: internal component.
•
b
: Pattern from the side which enables seeing.
6-6. PRINTED WIRING BOARD — TUNER SECTION — • Refer to page 21 for Circuit Boards Location.
D5
B-6
D90
I-9
D91
I-9
D92
F-9
D93
F-9
D94
E-9
D95
E-9
D96
H-9
D97
H-9
D98
H-9
D99
H-9
IC1
E-6
IC2
H-6
Q1
D-8
Q2
B-8
Q3
C-8
Q4
E-7
Q5
C-7
Q6
D-9
Q7
C-6
Q8
F-6
Q9
C-4
Q10
B-3
Q11
E-3
Q12
D-3
Q13
I-8
Q17
G-3
Q21
B-5
Q22
B-5
Q24
G-5
Q25
I-2
Q26
H-1
Q27
H-1
Q28
A-4
Q30
B-1
Q31
C-1
Q32
F-3
Q33
F-2
• Semiconductor
Location
Ref. No.
Location
TP(VT)
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.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : MW
< > : LW
• 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
(Page 44)
(Page 44)
(Page 44)
(Page 33)