Sony CDX-4170R Service Manual page 24

4-2. BLOCK DIAGRAM
OPTICAL PICK-UP
RF AMP, SERVO CONTROL
KSS-520A
IC2
35 PD1 RFO 31
36 PD2 CLK 19
INVERTER
39 E XLT 20
38 F DATA 21
CD 5V
XRST 22
RV1
37 FE BIAS
FOCUS BIAS C. OUT 23
SENS 24
RV4 1 FEO
FOK 25
FOCUS GAIN
2 FEI
PD
SLO 16
34 PD
TAO 13
CD 5V
FEO 6
LD DRIVE
33 LD
Q1,2
LD
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
16 CH2+ CH1 IN 19
TRACKING
15 CH2- CH2 IN 22
18 CH1+ CH3 IN 24
FOCUS
17 CH1- CH4 IN 3
13 CH3+
M902
M
(SLED)
14 CH3-
12 CH4+
M901 REW 7
M
(SPINDLE)
FWD 6
11 COM
M903 CTL2 5
M
(LOADING)
10 CH5+
CTL1 4
TUNER UNIT
TU101
CNJ101
1 AM ANT FM LCH 17
(ANTENNA)
2 FM ANT FM RCH 15 R-CH
AM DET 12
S-METER 18
SEEK 13
SD 19
ST/MONO 21
Signal path
: FM
FM DET 22
: MW
FM+B 8
D102
: CD
+B 9
AM+B 10
AM IF COUNT 11
FM IF 20
VCO 6
VT 5
04 LO/DX 4
DIGITAL SIGNAL PROCESSOR DDBB
IC701
IC1
14 RF PCMD 21 3 DI DOUT 9
59 CLKO LRCK 20 1 LRCI BCKO 10
57 XLTO BCK 22 2 BCKI LRCO 11
56 DATA XTAI 34 4 CLK
50 XRST 6 RSTN
55 CNIN
54 SEIN 16.9344MHz
1 FOK MOD1 14
3 MDP MOD2 15
MOD3 16
SQSO 46
SQCK 47
SENS 49
DATA 51
XLAT 52
CLOK 53
SCOR
43
CN/SCOR
SWITCH
CN
Q507
SWITCH
Q505
POWER
8V REG
MD8V CONTROL
Q702
Q704
POWER
5V REG
CD5V CONTROL
Q701
Q703
R-CH
RV101
FM RDS
S-METER
S-METER
AMP
Q103
RDS DECODER
IC102
1 IN DATA 13
FM8V 9 RDSIN CLK 12
X102
4.332MHz
10 RDSOUT VCC 16
TU8V
PLL
IC101
AM8V
13 AM/FM IF CE 3
D IN 4
CLK 5
15 FM IN
D OUT 6
16 AM IN X OUT 1
X101
19 VT
7.2MHz
X IN 24
11 DX/LO
– 26 –
D/A CONVERTER
IC702
L3
LO 12 36
6 DI
LTOUT
RO 14 R-CH 28
L1
5 BCKI
38
8 LRCK
L2
37
3 CKO
18 XTI
SYSTEM CONTROL
DEEM 2
IC501
X701
19 XTO
RSTN 22
62 EMPH O CKO 20
21 DBCNT1 VOL SO 19
79 DBCNT2 CE 18
78 DBCNT3
45 SQSI
BEEP 38
44 SQCKO
17 SENS
34 CD SO
35 CD LAT TUNMUT 74
33 CD CKO MUT 66
SCOR
AMPMUT 75
SWITCH 15 CNIN/SCOR
APON 76
Q506
TEST 77
80 INTSELO
32 CD RST CE 42
1 FOK CKO 39
LCD
23 LM LOD SO 40
22 LM EJ INH 41
61 LDON/CTL2
NOSE SW 69
BATT
ILLON 4
24 CD MON KI2 52
25 CDON/CTL1
KEYIN0 51
SW3
KEYIN1 50
2 LSW
(LIMIT)
KEYAC 31
SW4
46 DSW
(DOWN)
AD ON 68
SW2
30 SELFSW
(SELF)
RC IN1 6
RC IN0 55
SW1
3 INSW
(DISC IN)
BU IN 16
57 VSM
63 SEKOUT
ACC IN 36
71 SDIN
70 ST
PWON 5
TUON 64
73 SI
RDS
FMON 65
26 CKI
RDS REG 5V REG
TU8V PWSEL 72
Q102 Q104
OSCIN 8
X502
FM 8V 8MHz
OSCOUT 9
29 CE
XTIN 11
28 SO X501
PLL
32.768kHz
27 CKO
XTOUT 12
30 SI
RESET 14
S502
(RESET)
ELECTORONIC VOLUME
IC303
LFOUT
21
LSOUT
LSIN LFIN
23
27 TONE 22
20
LROUT
16 17 18
POWER AMP
IC302
3
F-L
1
Q301 5
7
R-L
11
9
Q302
MUTE STBY
D313 10 2
D309
MUTE
CONTROL R-CH
Q305
D310
LCD DRIVE
IC801
62 CE
63 CLK
LCD801
64 DATA
61 INH
LAMP REG LAMP REG
BATT
Q501 Q502
LED
SWITCH
Q503, 504
D-BASS
SW821
KEY MATRIX
D805-824
SW801-820
KEY
D509
ACTIVE
Q508,509
D510
CNJ901
(REMOTE IN)
D908
BATT
DET BATT
Q901
D909
ACC/BATT
DET
POWER SUPPLY
ACC
Q902
IC901
D910
4 STB
2 MODE2
3 MODE1
S501
(POWER SELECT) BU5V 5 BU+B
ON
COM8V 9 COM8V VCC 7 BATT
OFF
AM8V 10 AM8V AMP+B 6
FM8V 11 FM8V ANT+B 8
RESET
IC902
F901
2
1 BU5V
BATT
ACC
– 27 –
CDX-4170R
-1
L
(FRONT)
-2
R-CH R
(LINE OUT)
-3
L
(REAR)
-4
R-CH R
CNP901
1
FL+
9
FL-
2
RL+
10
RL-
15
TEST
PL801
PL802
5
AMP REM
6
ANT REM
16
BATT
7
ACC