Note For Printed Wiring Boards And; Tel 13942296513; Schematic Diagrams - Sony XR-C8220R Service Manual
Fm/mw/lw cassette car stereo
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Also See for XR-C8220R:
- Operating instructions manual (140 pages) ,
- Service manual (58 pages) ,
- Operating instructions manual (208 pages)
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Q Q
3 7 6 3 1 5 1 5 0
7-6.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
r
: Through hole.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
T E
L
1 3 9 4 2 2 9 6 5 1 3
w w w
.
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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
/
W or less unless otherwise
4
specified.
•
¢
: internal component.
• C : panel designation.
• U : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : AM (MW/LW)
〈〈
〉〉 : TAPE PLAY
• Voltages are taken with a VOM (Input impedance 10 MΩ).
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
: AM (MW/LW)
L : BUS AUDIO IN
E
: TAPE PLAY
• Abbreviation
TAPE A : ENGLISH, FRENCH
TAPE B : ENGLISH, GERMAN
TAPE C : ENGLISH, SPANISH
TAPE D : ENGLISH, ITALIAN
x
a o
u 1 6 3
y
i
– 33 –
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8
9
• Waveforms
– MAIN Board –
1 IC10 @º (XOUT)
3.8 Vp-p
139 ns
2 IC100 $¶ (XT)
4.3 Vp-p
240 ns
3 IC150 4 (OSCO)
Q
Q
3
7
6
3
1
5
1
3.6 Vp-p
230 ns
4 IC600 &¢ (X0A)
3.6 Vp-p
30.6 µ s
c o
.
2
4
2
9
8
– KEY Board –
5 IC600 (£ (X1)
1 IC900 @º (OSC-IN)
5.8 Vp-p
5.5 µ s
272 ns
6 IC650 2 (XT)
2 IC900 @¡ (OSC-OUT)
3.8 Vp-p
236 ns
– INVERTER Board –
5
0
8
9
2
4
9
8
2
1 Q556 (EMITTER)
1.1 ns
m
– 34 –
XR-C8220R
9
9
2 Vp-p
6.8 Vp-p
3.3 µ s
9
9
10 Vp-p
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