MEX-R1 (serv.man2) - Sony Car Audio Service Manual (repair manual). Page 2

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MEX-R1
1
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
All capacitors are in 
μ
F unless otherwise noted. (p: pF)
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.
Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : DVD PLAY
(
) : TUNER
: Impossible to measure
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
Signal path.
L
: DVD/CD (VIDEO)
F
: DVD/CD (AUDIO)
J
: OPTICAL OUTPUT
f
: TUNER
E
: AUX IN
Abbreviation
CND : Canadian model
RU
: Russian model
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
f
: internal component.
: 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.
Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
2.
DIAGRAMS
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