Sony MEX-BT38UW - Bt Slot Usb 1wire Manual de servicio - Página 24
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MEX-BT38UW/BT3800U/BT3807U/BT3850U
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.
•
W : Indicates side identifi ed with part number.
•
: Internal component.
f
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Parts face side:
Parts on the parts face side seen from
(Conductor Side)
the pattern face are indicated.
Pattern face side:
Parts on the pattern face side seen
(Component Side)
from the parts face are indicated.
Caution:
Parts face side:
Parts on the parts face side seen from
(SIDE A)
the pattern face are indicated.
Pattern face side:
Parts on the pattern face side seen
(SIDE B)
from the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B
E
• Abbreviation
CND : Canadian model
EA
: Saudi Arabia model
MEX-BT38UW/BT3800U/BT3807U/BT3850U
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 and
1
/
W or less unless otherwise
4
specifi ed.
•
: internal component.
f
• C : panel designation.
Note:
Note:
The components identi-
Les composants identifi és
fi ed by mark 0 or dotted
par une marque 0 sont
line with mark 0 are criti-
critiques pour la sécurité.
cal for safety.
Ne les remplacer que par
Replace only with part
une piéce portant le nu-
number specifi ed.
méro spécifi é.
• 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
(
) : CD PLAY
• Voltages are taken with a 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
J
: CD PLAY
p : Bluetooth
l : USB
N
: MIC
E
: AUX IN
: BUS AUDIO IN
a
• Abbreviation
CND : Canadian model
EA
: Saudi Arabia model
• Circuit Boards Location
SERVO board
BT board
MAIN board
KEY board
JACK board
– front panel –
• Waveforms
– MAIN Board –
IC501 qd (X_OUT)
1
1.3 Vp-p
30.4 s
500 mV/DIV, 10 s/DIV
IC501 os (OSC_OUT)
2
3.8 Vp-p
126 ns
1 V/DIV, 50 ns/DIV
24
24
SENSOR board
ANTENNA board
– main unit –