MEX-1HD - Sony Car Audio Service Manual (repair manual). Page 29

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MEX-1HD
29
29
6-3.
BLOCK  DIAGRAM  – AUDIO, SYSTEM Section –
PGND
6
OVER LOAD
DETECT
IC412
C
R-CH
Q306
R-CH
(L)
(R)
AUX-L
CDL
4
40
MPIN
14
MPX1
12
INPUT SELECT,
ELECTRICAL VOLUME
IC301
27
OUTLR
24
OUTSW
28
38
OUTLF
ACOUTL
33
ACINL
XMS_DET0
XMS_DET1
SYSTEM CONTROLLER
IC501 (2/3)
30 XMS_DET0
36 XMS_DET1
CNJ302
AUDIO OUT
FRONT
L
L
MUTING
Q305
R
R
15
11
RL-IN
14
55
15
9
4
22
RR-IN
AMP_ON
BEEP
5
LINE_MUTING
XAMP_MUTING
STBY
XMUTING
FL-IN
12 FR-IN
POWER AMP
IC304
9
7
5
3
FL+
FL–
FR+
FR–
19
RL+
RL–
21
23
RR+
RR–
CNJ201
(1/2)
2
1
FL+
FL–
FR+
FR–
RL+
RL–
RR+
RR–
3
10
4
9
11
12
ACC
ILL
D206
14
ATT
7
15
17
LEVEL SHIFT
Q201
BUZZER DRIVE
Q361
AUDIO OUT
REAR
SUB OUT
R-CH
BZ361
R-CH
(FRONT)
R-CH
(FRONT)
R-CH
(REAR)
R-CH
(REAR)
25
RTC_SI
26
RTC_SO
27
RTC_CLK
28
RTC_CS
76
XRTC_INT
74
X0A
31
XS_MUTING
MUTING
Q303
MUTING
Q301
TELATT
• SIGNAL PATH
: AM
: FM
: CD PLAY
: BUS AUDIO IN
MUTING
CONTROL
Q351, 352
16
 R-ch is omitted due to same as L-ch.
(Page 27)
K
(Page 28)
AM/MPX2
9
D
(Page 27)
R-CH
LOW-PASS
FILTER
IC372
LOW-PASS
FILTER
IC302
7
15
2 DIN
VOUTL
8
VOUTR
XCS
14
CLK
13
DATA
D/A CONVERTER
IC371
16 SCK
3 LRCK
1 BCK
2
SCLK
7
CE
6
XINTR
4
SI
3
SO
REAL TIME CLOCK
IC502
1 32KOUT
BCLK
LRCK
MCLK
SDO
DAC_CS
DAC_CLK
DAC_SO
XDAC_CS
DAC_CLK
DAC_SO
DAC_CS
DAC_CLK
DAC_SO
21
22
29
21
SACLK
23
SAOUT
SA_CLK
SA_DATA
D_MUTING
17
XSM
20
SCL
19
SDA
ICK
IDA
1
2
FM-ANT
AM-ANT
VM
I2CSIO
I2CCKO
E2CKO
E2SIO
14
S-METER
10
MPX
8
AM-DET
FM/AM
TUNER PACK
TUX101
17
EEPROMSDA
(FM/AM ANTENNA IN)
5
VCC-8.5V
TUN8V
16
TUNER 5V
TUN5V
11
B/U 5V
BU5V
18
EEPROMSCL
SDA
SCL
IDA
ICK
12
13
53
10
11
70
71
MUTING
Q374
DIMMER DETECT
Q203
ACCESSORY CHECK
Q202
XILL_IN
TRAY_M+
TRAY_M–
TR_I_DET
FP_M+
FP_M–
FP_I_DET
95
XACC_IN 81
OUT1
FIN
OUT2
RIN
TRAY OPEN/CLOSE
MOTOR DRIVE
IC411
M103
XCLOSE_END
M
9
7
3
4
61
62
51
TRAY
OPEN/CLOSE
S1
D6
S2
TRAY CLOSE-END
DETECT
TRAY OPEN-END
DETECT
XTR_CLOSE_END 59
XTR_OPEN_END 58
OUT1
FIN
OUT2
RIN
FRONT PANEL
OPEN/CLOSE MOTOR DRIVE
IC411
M601
M
9
7
3
4
98
97
49
PGND
6
FRONT PANEL
OPEN/CLOSE
OVER LOAD
DETECT
IC402
PANEL  CLOSE-END
DETECT
PANEL OPEN-END
DETECT
XFPCLOSE_END 99
XFPOPEN_END
A
(Page 27)
REMOTE CONTROL
RECEIVER
D904, IC902
72
80
24
LSW901, S3,
S901 – 910
3
4
X900
4MHz
17
9
KEY ACTIVE
SWITCH
Q521
BU5V
D505
XIN
XOUT
SIRCS
IN
RESET SIGNAL
GENERATOR
IC904
6
RESET
SIRCS
OUT
SIRCS
CONTROLLER
IC903
KEYACK
XADON
46 KEYIN0
SIRCS
SA_DATA, SA_CLK,
D_MUTING
SDO, MCLK,
LRCK, BCLK
XMS_DET0,
XMS_DET1
100
D311
X502
32.768kHz
X501
3.68MHz
9
92
93
8
OSCIN
OSCOUT
X1
X0
AUX IN
D907
ILL10V
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