CDX-G1003ER, CDX-G1003UR, CDX-G1053UR (serv.man2) - Sony Car Audio Service Manual (repair manual). Page 2

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CDX-G1003ER/G1003UR/G1053UR
2
2.  DIAGRAMS
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.
• 
A : B+ Line.
•  Power voltages is dc 14.4V and fed with regulated dc 
power supply from ACC and BATT cords.
•  Voltages are dc with respect to ground under no-signal 
(detuned) conditions.
  no mark : TUNER (FM)
  (         ) : CD PLAY
       
*
  : Impossible to measure
•  Voltages are taken with VOM (Input impedance 10 M
).
  Voltage variations may be noted due to normal production 
tolerances.
• Signal path.
 
F : 
AUDIO
 
f : 
TUNER
 
J : 
CD
 
d : 
USB
 
E : 
AUX
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.)
•  Indication of transistor.
 
C
B
These are omitted. 
E
Q
Note: When the complete MAIN board is replaced, the 
destination setting is necessary. Refer to “NOTE OF 
REPLACING THE COMPLETE MAIN BOARD OR 
SYSTEM CONTROLLER (IC501)” on page 4 on orig-
inal service manual.
Note: When the complete MAIN board is replaced, the 
destination setting is necessary. Refer to “NOTE OF 
REPLACING THE COMPLETE MAIN BOARD OR 
SYSTEM CONTROLLER (IC501)” on page 4 on orig-
inal service manual.
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.
TYPE  C/D  DISCRIMINATION  OF  MAIN  BOARD
As for the MAIN board of the new type, circuit has been changed 
in the midway of production. Repair after distinguishing each type 
unit to doing the repair referring to the following.
• 
Distinguish method by serial No.
 
(Serial No. is printed on the bottom side of this unit)
Model
Destination
Type C
Type D
CDX-G1003ER
Russian
1507891 or 
smaller
1507892 or 
larger
CDX-G1003UR
Russian
1508191 or 
smaller
1508192 or 
larger
CDX-G1053UR
E
1508521 or 
smaller
1508522 or 
larger
• 
Distinguish method by existence of IC.
– MAIN Board (Component Side) –
Type C : IC1301/1304 no mount
Type D : IC1301/1304 mount
IC1301
IC1304
1-888-974-31
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