Sony XAV-701BT, Руководство по обслуживанию

Страница: 35 / 124

XAV-701BT/741
XAV-701BT/741
35 35
• Circuit Boards Location
For Schematic Diagrams.
Note:
• 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
speci fi ed.
•
f
: Internal component.
•
C
: Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
•
B
: B– Line.
• Power voltage is dc 14.4V and fed with regulated dc pow-
er supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
- SERVO board -
no mark : DVD PLAY
* : Impossible to measure
- Other board -
no mark : TUNER (FM)
• 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.
F
: AUDIO
J
: DISC PLAY
k
: USB
f
: TUNER
N
: MIC
h
: NAVI
E
: VIDEO
• Abbreviation
RU
: Russian model
SAF : South African model
For Printed Wiring Boards.
Note:
• 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:
(Conductor Side)
Parts face side:
(Component Side) Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• SERVO board is multi-layer printed board.
However, the patterns of intermediate-layer have not
been included in this diagrams.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A) Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Indication of transistor.
C
B
These are omitted.
E
Q
• Abbreviation
RU
: Russian model
SAF : South African model
Note: When the complete MAIN board is replaced, the
destination setting is necessary. Refer to “NOTE
THE MAIN BOARD OR SYSTEM CONTROLLER
(IC502) REPLACING” on page 5.
Note: When the complete MAIN board is replaced, the
destination setting is necessary. Refer to “NOTE
THE MAIN BOARD OR SYSTEM CONTROLLER
(IC502) REPLACING” on page 5.
Note: The components identi fi ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number speci fi ed.
MAIN board
MOTOR board
EXT-NAVI board
(E (PAL), South African, Russian models)
KEY7 board
DISPLAY board
D-SUB7 board
SENSOR board
SERVO board
Ver. 1.2