Read Sony CDX-H905IP / CDX-HR905IP Service Manual online
CDX-H905IP/HR905IP
29
• IC Block Diagrams
IC300 TDA8588AJ/N2/R1 (MAIN Board (1/4))
IC601 BA8271F-E2 (MAIN Board (1/4))
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULA
TOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
LF–
LF+
LR–
LR+
IN-RL
S-GND
IN_LF
RR+
RR–
RF+
RF–
DIAG
SW2
SW1
REG3
REG4
VP
REG2
SDA
SCL
VP2
PGND3
SVR
IN_RR
IN_LR
ACGND
PGND2
VP1
STB
PGND1
RST
CRES
REG1
GND
REG5
CBU
FL
RL
RR
VP
FR
I
2
C BUS
1
2
3
4
5
6
5
6
7
8
9
10
14
13
12
11
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS.ON
RST
BATT
CLK
VREF
GND
VCC
RST
BUS.IN
CLK-IN
B/U-C
BUS.IN
CLK-IN
B/U-C
DATA IN
DATA OUT
DATA I/O
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