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MEX-M72BT/N5300BT/N7300BD
Ver. 1.1
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
•
: Internal component.
f
•
: 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
(Conductor Side)
from the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B
E
Note 1: When the complete MAIN board is replaced, be sure
to replace the knob (VOL) assy (Ref. No. NFC1) si-
multaneously.
Also, be sure to refer to "NOTE OF REPLACING
THE MAIN BOARD" on page 6.
Note 2: The KEY board cannot be repaired. When the KEY
board is defective, replace the whole of panel front
assy (Ref. No. FP1) including the KEY board.
Block diagram, schematic diagram and printed wir-
ing board of the KEY board have not described on
this service manual.
Also, when the panel front assy is replaced, be sure
to refer to "NOTE OF REPLACING THE PANEL
FRONT ASSY OR THE KNOB (VOL) ASSY" on
page 6.
Note 3: The board installed on the mechanism deck cannot
be repaired. When the board of the mechanism deck
is defective, replace the whole mechanism deck with
a new one.
Block diagram, schematic diagram and printed wir-
ing board of the mechanism deck have not described
on this service manual.
46
For Schematic Diagrams.
Note:
• All capacitors are in μF 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
specifi ed.
•
: Internal component.
f
• C : Panel designation.
Note:
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
• A : B+ Line.
• Power voltages 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 : TUNER (FM)
[
] : TUNER (AM/MW/LW/SW)
<
> : TUNER (DAB)
(
) : CD PLAY
{
} : SIRIUSXM
‹‹
›› : AUX
: Impossible to measure
*
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
: TUNER
f
: SIRIUSXM
h
: CD
J
: AUX
E
: USB
d
: Bluetooth
a
: MIC
N
Note 1: When the complete MAIN board is replaced, be sure
to replace the knob (VOL) assy (Ref. No. NFC1) si-
multaneously.
Also, be sure to refer to "NOTE OF REPLACING
THE MAIN BOARD" on page 6.
Note 2: The KEY board cannot be repaired. When the KEY
board is defective, replace the whole of panel front
assy (Ref. No. FP1) including the KEY board.
Block diagram, schematic diagram and printed wir-
ing board of the KEY board have not described on
this service manual.
Also, when the panel front assy is replaced, be sure
to refer to "NOTE OF REPLACING THE PANEL
FRONT ASSY OR THE KNOB (VOL) ASSY" on
page 6.
Note 3: The board installed on the mechanism deck cannot
be repaired. When the board of the mechanism deck
is defective, replace the whole mechanism deck with
a new one.
Block diagram, schematic diagram and printed wir-
ing board of the mechanism deck have not described
on this service manual.
Sony CONFIDENTIAL
For Authorized Servicer
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
SYS SET
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