DSX-A60BT - Sony Car Audio Service Manual (repair manual). Page 15

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DSX-A60BT
DSX-A60BT
15
15
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.
•      f  : Internal component.
• 
 : Pattern from the side which enables seeing.
  (The other layers’ patterns are not indicated.)
• Waveforms
– MAIN Board –
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
/
4
 W or less unless otherwise 
specifi ed.
•      f  : internal component.
•  C : panel designation.
•  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)
  (         ) : BT AUDIO
  [         ] : BT PHONE
•  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.
  F : 
AUDIO
  f : 
TUNER
  d : 
USB
  E : 
AUX
  a : 
Bluetooth
  N : 
MIC
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.
•  Indication of transistor.
 
C
B
These are omitted. 
E
Q
Note 2: When the complete MAIN board is replaced, it is 
necessary to confi rm operation. Refer to “BLUE-
TOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” on page 5.
Note 1: When the complete MAIN board is replaced, the des-
tination setting is necessary. Refer to “NOTE THE 
MAIN BOARD OR SYSTEM CONTROLLER 
(IC101) REPLACING” on page 4.
Note 2: When the complete MAIN board is replaced, it is 
necessary to confi rm operation. Refer to “BLUE-
TOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” on page 5.
Note 1: When the complete MAIN board is replaced, the des-
tination setting is necessary. Refer to “NOTE THE 
MAIN BOARD OR SYSTEM CONTROLLER 
(IC101) REPLACING” on page 4.
1
IC201 ug (X12OUT)
2 V/DIV, 50 ns/DIV
83 ns
2.7 Vp-p
2
IC101 9 (XOUT)
2 V/DIV, 20 
Ps/DIV
30.4 
Ps
2.7 Vp-p
3
IC101 qa (OSCOUT)
2 V/DIV, 50 ns/DIV
126 ns
3.5 Vp-p
4
IC501 1 (BST)
10 V/DIV, 2 
Ps/DIV
2.4 
Ps
16.4 Vp-p
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