Sony PMC-107L / PMC-20L Service Manual ▷ View online
– 29 –
– 30 –
PMC-107L
5-6. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 42 for IC Block Diagrams.
Note:
• All capacitors are in
• 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.
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.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
no mark : CD STOP
• 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.
J
: CD
– 33 –
– 34 –
PMC-107L
5-8. SCHEMATIC DIAGRAM — PANEL SECTION —
Note on Schematic Diagram:
• All capacitors are in
• 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.
•
C
: panel designation.
•
U
: B+ Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
(
) : PB
<
> : REC
[
] : CD
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Abbreviation
EE
: East European model.
– 37 –
– 38 –
PMC-107L
5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 41 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in
• 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.
•
C
: panel designation.
•
U
: B+ Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
(
) : MW/LW
<
> : MW
[
] : LW
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
f
: MW
• Abbreviation
EE
: East European model.
– 39 –
– 40 –
PMC-107L
5-11. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 41 for IC Block Diagrams.
Note on Schematic Diagram:
• All capacitors are in
• 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.
•
2
: nonflammable resistor.
•
C
: panel designation.
Note: The components identified by mark
!
or dotted line
with mark
!
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : PB
<
> : REC
[
] : CD
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
E
: PB
a
: REC
J
: CD
• Abbreviation
EE
: East European model.
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