CDX-GT35U, CDX-GT39U, CDX-GT39UE - Sony Car Audio Service Manual (repair manual). Page 17

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CDX-GT35U/GT39U/GT39UE
CDX-GT35U/GT39U/GT39UE
17
17
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.
•      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.
•  Voltages and waveforms are dc with respect to ground 
under no-signal (detuned) conditions.
  no mark : FM
 ( 
AM/MW/LW
  < 
> : CD PLAY
        
*
   : Impossible to measure
•  Voltages are taken with a VOM (Input impedance 10 M
Ω).
  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.
  J : 
CD
  F : 
FM
  f : 
AM/MW/LW 
  L : 
AUX
  c : 
USB
• Abbreviation
  RU 
: Russian model
 
AR : 
Argentina 
model
For Printed Wiring Boards:
Note:
•  X  : Parts extracted from the component side.
•  Y  : Parts extracted from the conductor side.
•      a  
Through 
hole.
• 
 : Pattern from the side which enables seeing.
  (The other layers' patterns are not indicated.)
• Waveforms
– MAIN Board –
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.
1.8 Vp-p
32.768 kHz
3.2 Vp-p
7.92 MHz
1 V/DIV, 20 ȝsec/DIV
2 V/DIV, 50 nsec/DIV
1
 IC401 qd (X_OUT)
2
 IC401 os (OSC_OUT)
0.05 Vp-p
4 MHz
0.05 V/DIV, 50 nsec/DIV
3
 IC001 qh (XTAL1)
Note: The components identifi ed by mark 0 or dotted 
line with mark 0 are critical for safety. 
 
Replace only with part number specifi ed.
• Abbreviation
  RU 
: Russian model
 AR  : 
Argentina 
model
Ver. 1.1
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