Sony CDX-C6750, Руководство по обслуживанию

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4-3. BLOCK DIAGRAM — MAIN SECTION —
CDX-C6750/C7500
– 25 –
– 26 –
-3
L
1
3
62 63 64
1 3 2
1
1 2
18 12 16 13 11 21 20 22 19
83 81 53
9
10
6
6 8
15 25 24
5 4
CNJ600
(ANT)
AM ANT
FM L-CH
FM R-CH
AM OSC
MONO
IF/SEEK
VCO
SD
ST-IND
S-METER
TU+B
FM+B AM+B
VT
LO/DX
AM DET
FM ANT
TUNER ASSY
TU601
R-CH R-CH
Signal path : FM : AM : CD
CD
SECTION
PJ400
R-CH
R
-1 -2
BUS AUDIO IN
L
11 12
1
28
TONE
22 20
ELECTRONIC VOLUME
IC401
26
25
24
PDL SE3L SE2L
SE1L
SCL
SDA
MUTE
OUT FL OUT RL
SYSTEM CONTROL
IC801(2/2)
58
104
14 13
90
61 49 37
101 109
47 48 12 15 60
FM+B
SWITCH
Q610,615
SWITCH
Q901,902 ILL+B REG
Q903
D-BASS SWITCH
S501
ROTARY
ENCODER
RE501
12 13 16
71 70 65
28
9
PLL
IC601
MONO IF FM AM IN
SCL
SDA
SSTOP
FM IN
LPOUT
LCL/DX
X601
10.25MHz
29
13
2
10
3
11
4
9 8
6
12
1
22 21 36 76 20
46 79
106 107
BUS INTERFACE
IC803
RST BATT CLK
DATA
BUS ON
RES IN
BATT CHECK
CLK IN
DATA IN
DATA OUT
BUS ON
7
2
5 6 4
BATT+B
D807
LCD DRIVE
IC501
CE CLK DATA
LCD501
AMBER LED
SWITCH
Q503
GREEN LED
SWITCH
Q504
U COM 5V
+B
BATT+B
RESET
IC902
S900
RESET
CNP802 (REMOTE IN)
KEY MATRIX
LSW512-521,531,532,534-538
(KEY BOARD)
KEY ACTIVE
Q914,915
LED510 LED511
LAMP
SWITCH
Q502, 505
LSW512-521,531,532,534-538
LED501-505
TEL MUTE
SWITCH
Q916
POWER SUPPLY
IC901
AMP ON
VCC
AMP+B
BATT+B
BATT+B
ACC
CHECK
Q905
F901
11
3
12
4
10
2 9 1
13
TEL MUTE
16
BATT
7
ACC
5
AMP REM
6
ANT REM
15
TEST
SCL X1A X0A SDA SSTOP SD IN ST/MONO S-METER
KEY IN0
SYSRST UNI CK UNI SO UNI SI BUS ON BU IN
AD ON
KEY ACK
RE IN0 RE IN1 ACC IN
TEL ATT KEY IN1 KEY IN2
RC IN1 RC IN0
RESET
108
LAMP ON
LCD CKO
LCD SO
P1/S1
S3
P2/S2
LCD CE
ANT REM
AMP ATT
BEEP
Q402
ATT
VOL ATT
PW ON
TEST
FLS SI/NOSE1
Q110
Q401
Q111
12 11
5 3 9 7
POWER AMP
IC200
22
4
FL RL
MUTE
STBY
-6
REAR
R
-5
L
-4
FRONT
R
R-CH R-CH
PJ401
PJ400
R-CH
CNP501
FL+ FL- RL+ RL- FR+ FR- RR+ RR-
31
AMP ON
56
111
80
BATT+B
D918
D919
LINE OUT
92 93
X800
4.19MHz
X0 X1
73 74
X801
32kHz
D909
BATT+B
BU CHECK
Q906
ANT REM
SWITCH
Q924,925
66
1
2 4
AM OSC
Q614
14
IF AM SEEK
10
9
OSC IN
OSC OUT
1 2 3
LP FM
LP HC
LP AM
TU+5V REG
Q613
TU+B
SWITCH
Q603,609
TU+5V
COM+8V
68
FM ON/AM ON
AM+B
SWITCH
Q612
86
HSTX
69
TU ON
D602
8
D910
BAND
100
SW802
FREQUENCY
SELECT
FM200K
AM10K
FM50K
AM9K
3
CNP801
(BUS CONTROL IN)
IR
RECEIVER
IC502
Q806
PULL UP 5V
04
24
SIRCS
LED506
(CD WINDOW)
SUB+B
LSW511 LED507
-3 -4
L
R
Q403
2 3
1
IC406
18 17
SUBOUT-
S901
NOSE DET
72
NOSE2
C7500
SUB OUT
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