Read Sony CDX-M8800 / CDX-M8805X Service Manual online
22
22
CDX-M8800/M8805X
3-3. BLOCK DIAGRAM — MAIN SECTION —
3
2
PJ501
(ANTENNA)
1
4
L
CD-R
3
R
SDA
SCL
SDA
SA CLK
SCL
14
TU_SDA
13
TU_SCL
9
RDS
TUNER UNIT
TUX501
7
SYSTEM CONTROL
IC303 (2/3)
16
8
6
27 I2C_SCO
28 I2C_SIO
X
73
80
PDR+
40 AML
41 AMR
14 SA IN
SA CLK
SDA
SCL
SDA
SCL
12 SDA
13 SCL
16 SAOUT
15 MUTE
13 SCL
16 SAOUT
15 MUTE
4 PDL+
AMP
BIAS
BIAS
5
MUTE-CONDITION
19 NS_MASK
RDS DECODER
IC550
MPX
OSCD
OSCI
4
5
X550
4.3MHz
9
SDA
SCL
17 DAVN
18 BU_IN
30 UNI_SI
30 UNI_SI
10
DAVN 8
43 MDR
ELECTRONIC VOLUME
IC401
38
CREF
22
OUT RF
24
OUT LR
21
OUT RR
66
BUS/AUX
83
SA_IN
A
26
VOLATT
12
5
3
2
4
34
16
22
25
37
29
27
6
20
35
POWER AMP/MULTIPLE VOLTAGE
REGULATOR
IC201
SW1
LCD_10V
U-CON5V
A_3.3V
SW2
VP2
VP1
VP
SDA
SCL
SDA
SCL
REG5
ACGND
STB
DIAG
REG2
CN700
FL+
FL–
RL-
FR+
FR–
FR–
RR+
RR–
AMP-R
ANT-R
ATT
+B
ILL
ACC
TEST
5
6
4
10
2
9
1
12
3
11
19
17
18
13
16
14
7
15
R-CH
R-CH
BATT
BU_3.3V
U-CON 5V
CNVSS
RESET
LINK_OFF
SYS_RST
UNI_SO
UNI_SO
UNI_SO
UNI_CLK
BUS_ON
BU_CHK
A_ATT
LINK ON/OFF
SWITCH
Q112
BUS ON SWITCH
Q110,111
BATTERY CHECK
Q101
AU +8V
B ATT
PJ401 (2/2)
(CN401)
10 VCC
11 TU_VDD
R
L
R
L
SUB OUT (MONO)
BUS AUDIO IN
AUX IN
R
L
FRONT
REAR
AUDIO OUT
5
LINE AMP
IC431
7
LINE AMP
IC451
11
9
7
RL+
F901
• Signal path
: FM
: AM/MW
: CD
• R-ch is omitted due to same as L-ch.
CD-L
42 MDL
69
ILL _N
24
TEL ATT
68
ACC_IN
82
7
TU MUTE
S_METER
TUNER ATT
32
TUNER-IN
VSM
17
E2P_SDA
QUALITY
EESIO
33
16
E2P_SCL
EECKO
34
63
TEST IN
Q113
33
DR_6V
REG4
30
AU 8V
REG1
31 REG3
D_3.3V
DETECT
Q102
ILLUM CHECK
Q102
ATT
Q103
+5V REG.
Q501
MUTE
Q281,181
MUTE
Q450
MUTE
Q453
MUTE DRIVER
Q401,402
MUTE
Q271,171
AEP,UK,E MODEL
3
BUS INTERFACE
IC110
BATT
6 DATA I/O
4 CLK
4 CLK
1 BUSON
2 RST
10
B/U_C
DATA OUT 8
29 UNI_SO
DATA IN 9
31 UNI_CKO
CLK-IN 11
64 BUS_ON
BUSON 12
65
5
6
4
2
3
8
7
1
SYSRST
RST
25 ATT
13
AEP,UK,E MODEL
Q380
JR301
JR302
US,CND MODEL
Q408
JP401 (1/2)
CD
SECTION
B
CD
SECTION
C
DISPLAY
SECTION
SECTION
3
1
25
OUT LF
17
OUT SW
MUTE
Q470
2
SUB OUT AMP
IC470 (1/2)
1
8
LINE AMP
IC402
14
2
24
11
13
5
23
+3.3V REG.
IC271
20
BEEP
41
AMP_STB
AMP_DIAG 40
5
7
IC470 (2/2)
BUFFER
D301
D105
D104
CNP102
BUS
CONTROL
IN
TH100
D303
D906
D904
D307
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