CDX-G1170U, CDX-G3170UV - Sony Car Audio Service Manual (repair manual). Page 13

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CDX-G1170U/G3170UV
CDX-G1170U/G3170UV
13
13
4-2.  BLOCK  DIAGRAM - PANEL/POWER  SUPPLY Section -
REGULATOR
IC201
1
9
TU5V
VCC1
8
CTRL1
6
CTRL2
CN301 (2/2)
7
VCC2
15
EXT
BU
15
9
AMP_REM
3 CD_6V
13 SW3.3V
13
ACC
SYSTEM CONTROLLER
IC501 (2/2)
J801
(REMOTE IN)
81 RC_IN1
72 RE_IN1
73 RE_IN0
90 NOSE_SW
64 SIRCS
78 KEYIN1
79 KEYIN0
80 RC_IN0
48 LCD_SO
46 LCD_CLK
47 LCD_CE
62
5
RESET
63
KEY_ACK0
KEY_ACK1
KEY BOARD (2/2)
LCD_DATA
LCD_CLK
LCD_CE
SIRCS
KEY_1
KEY_0
RE_1
RE_0
PANEL_SW
11 V6IN
AUDIO_3.3V
12 VDD_3.3V
P-COM_3.3V
USB_VBUS
DRV_6V
TU_5V
33
CTRL2_C
17
EN_USB
25
SYNC_OUT
30
CTRL1_C
31
CTRL2_A
5 ILM_9V
FP_B+
ACC_IN 51
BU_IN 35
VCC
18
FLT
D351
D350
BATTERY
CHECK
Q301
ACCESSORY
CHECK
Q304
BACK UP
VOLTAGE DETECT
Q300, 302
D500
DC/DC
CONVERTER
IC1301
VBUS SWITCH
IC1304 (G3170UV)
IC1305 (G1170U)
D305
D200
D503
82
MECHA_ON
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.
•  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)
  (         ) : CD PLAY
       
*
  : Impossible to measure
•  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
  f : 
TUNER
  J : 
CD
  E : 
AUX
  d : 
USB
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.
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.
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.
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.
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