Read Sony MEX-1GP Service Manual online
19
19
MEX-1GP
MEX-1GP
3-3. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7
5
3
2
4
1
SE2L
ELECTRONIC VOLUME
IC401
PJ601
(ANTENNA)
TU601
(TUNER UNIT)
POWER AMP
MULTI REGULATOR
IC100
Q301
SYSTEM CONTROL
IC801 (3/4)
RDS RECEIVER
IC600
RESET
IC802
S802
RESET
AUDIO SELECT
IC403
Q409
Q408
CNP901
8 SE2R
R-CH
BATT
FL
9 SE1L
10 SE1R
4
3
3
10
VCC8.3V
11
VDD5V
15
E2PVDD
13
TU_SCL
14
TU_SDA
6
S_METER
7
TU_MUTE
16
E2P_SCL
17
E2P_SDA
5
QUALITY
9
RDS_OUT
45 VSM
100 FMP_SW
AU+8V
R-CH
TU+5V
BU+3.3V
BU+3.3V
15 TU_ATT
25 EEP_CKO
24 EEP_SIO
24 EEP_SIO
44 QUALITY
8
MUTE-
CONDITION
AEP,UK,E MODEL
54 TU_ATTIN
77 RESET
L
R
CD-L
AUDIO_L
R-CH
R-CH
11 DIFEL
13 DIFFR
R-CH
R-CH
L
R
5
3
3
LF+
LF–
9
7
7
LR+
LR–
29
27
27
SW1
R-CH
SW2
35
VP
20
VP1
6
VP2
BATT
30
37
37
REG1
REG2
31
33
33
REG3
REG4
34
REG5
TU+5V
18
OUTRR
21
MUTE
2 SDA
AU+8V
U-COM+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
DISP+B
4 SCL
SDA
SCL
16 ACGND
22 STB
25 DIAG
25 DIAG
AU+8V
15
13
7
10
12
11
16
1
9
2
4
3
5
6
22
23
23
SCL
SDA
SCL
SDA
25
SAIN
26
SAOUT
SCL
SDA
40
SA_DATA
33
IIC_CKO
34
IIC_SIO
26
SA_CLK
6
VOL_ATT
5
BEEP
32
AUX
31
STB
56
DIAG
53
BU_IN
FP_ATT
DOOR_DET
SYS_RST
BUS_ON
UNI_CLK
UNI_SO
UNI_SI
BU_IN
A_ATT
LINK_OFF
67
TEST_IN
ATT
12 FL
RL
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMP-R
ANT-R
ACC
TEST
11
19
OUTLR
MUTE
Q405
MUTE
Q407
MUTE CONTROL
Q400,401
58
UNI_SI
59
UNI_SO
60
UNI_SCK
61
BUSON
62
SYS_RST
10 B/U-C
8 DATA OUT
9 DATA IN
11 CLK-IN
12 BUSON
13 RST
3
5
4
7
6
2
1
3
BATT
6
DATA I/O
4
CLK
1
BUSON
2
RST
64
ACC_IN
ACC DETECT
Q900
+5V REG
Q601
BU+3.3V
BATT
U-COM+5V
BATT
+3.3V REG
IC803
BATTERY CHECK
Q902
LINK ON/OFF
CONTROL
Q913,905
BUS INTERFACE CONTROL
IC900
MUTE
Q404
ATT
63
TEL_ATT
TEL-ATT DETECT
Q901
14
ILL
7
ILL
ILL DETECT
Q912
SCL
SDA
D400
F901
R-CH
R-CH
16
28
28
RL
RR
20
OUTLF
17
OUTRF
R-CH
L
R
REAR
PJ401
FRONT
AUDIO
OUT
R-CH
L
R
BUS
AUDIO IN
BUS
CONTROL IN
D818
D804
D805
D857
D858
D702
D403
D402
D701
D912
D915
CD
SECTION
A
MEMORY
SECTION
C
KEY
SECTION
E
CD
SECTION
B
TH400
CNJ900
8
BATT
13
QUALITY
SWITCH
Q602
RDS B+ SWITCH
Q603,604
BU+3.3V
VDD
13 NSMASK
55 DAVN
16 MPX
15
INTN
11
SCL
12
SDA
1
OUT
U COM+3.3V
2 IN
SCL
SDA
9
10
X600
8.66MHz
XT1
XT0
99
1
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: TUNER (FM/AM)
: MEMORY PLAY
: BUS AUDIO
(Page 18)
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(Page 17)
(Page 20)
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