Sony Cdx L550 570x Manual

							21 21
CDX-L550X/L570X
(Page 24)
3-8. PRINTED WIRING BOARD — MAIN SECTION —
(Page 19)
D601 J-1
D801 J-6
D802 K-7
D803 I-12
D804 I-12
D809 K-4
D811 K-4
D812 K-3
D813 K-3
D814 K-3
D815 J-2
D816 K-3
D817 K-2
D818 K-4
D901 H-12
D902 D-11
D906 D-11
D907 F-11
D908 D-9
D909 D-9
D911 A-9
D912 A-9
D913 C-10
D914 C-10
D915 A-9
D916 A-9
D917 B-10
D918 A-10
D919 F-11
D920 C-11
D931 B-14
D932 E-12D934 D-10
D935 D-10
D941 G-10
IC401 I-3
IC404 A-7
IC801 I-9
IC802 J-12
IC901 G-13
Q101 C-4
Q102 B-3
Q201 B-5
Q202 B-4
Q801 K-11
Q802 I-12
Q803 I-11
Q805 I-12
Q901 E-10
Q902 D-11
Q905 J-13
Q906 K-13
Q907 H-12
Q908 D-13
Q909 E-13
Q910 B-13
Q911 F-10
Q912 D-8
Q913 D-8
Q914 H-13
Q915 H-13 Ref. No. Location • Semiconductor Location
Ref. No. Location 
						

							22 22
CDX-L550X/L570X
IC B/D
• Refer to page 17 for Waveforms.
3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —  • Refer to page 28 for IC Block Diagrams.
(Page 20)
(Page 23) Note:
• Voltage is dc with respect to ground under
no-signal (detuned) condition.
no mark : FM
( ) : AM
< > : CD PLAY 
						

							2323
CDX-L550X/L570X
IC B/D
3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) —  • Refer to page 29 for IC\
 Block Diagrams.
Note: 
• Voltage is dc with respect to
ground under no-signal 
(detuned) condition.
no mark : FM
(Page 
      22)
(Page 25) 
						

							24 24
CDX-L550X/L570X
3-11. PRINTED WIRING BOARD — RELAY SECTION —
(Page 21)
(Page 27) 
						

							25 25
CDX-L550X/L570X
3-12. SCHEMATIC DIAGRAM — RELAY SECTION —
(Page 26)
(Page 23) 
						

							26 26
CDX-L550X/L570X
3-13. SCHEMATIC DIAGRAM — DISPLAY SECTION —
(Page 25)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM 
						

							27 27
CDX-L550X/L570X
3-14. PRINTED WIRING BOARD — DISPLAY SECTION —
(Page 24)
( ) : SIDE BRef. No. Location
(D501) A-11
(D502) A-10
(D503) B-10
(D504) B-6
(IC501) B-9
IC502 A-5
LED510 B-12
LED511 A-12
LED512 B-5
LED513 B-5 • Semiconductor
Location 
						

							28 28
CDX-L550X/L570X
+
–+
–+
–+
–
OVER VOLTAGE
PROTECT
REGULATOR
123456789101211
NC
MODE2
MODE1
STB
VDD
AMP
VCC
ANT
COM
AM
FM
GND
IC1  µPD63711GC-8EU • IC BLOCK DIAGRAMS
IC901  BA4908-V3IC2  BA5810FP
76
75
AGCIAGCO74RFI73C3T72ASY71EFM70AVDD697E DAC3687D DAC2677C DAC1667F DAC065MD64SD63TD62FD60ATEST59TEST158TEST057DGND56TSTB55TSCK54TSI53TSO52PACK51DVDD61AGND
1
DGND
2
RFOK
3
RST
4
A0
5
STB
6
SCK
7
SO
8
SI
9
XTALEN
10
DVDD
11
DAVDD
12
ROUT
13
DAGND
REGC
16
LOUT
17
DAVDD
18
R+
19
R–
20
L+
21
L–
22
XVDD
23
XTAL
24
XTAL
25
XGND
1514
DAGND
77 RFO
78 EQ2
79 EQ1
80 RF-
81 AGND
82 A
83 C
84 B
85 D
86 F
87 E
88 AVDD
89 REFOUT
90 FE-
91 FEO
92 TE-
93 TEO
94 TE2
95
AGNDTEC
96
PD
97
98 LD
PN
99
100 AVDD
50C2D3
49C2D2
48C2D1
47C1D2
46C1D1
45DGND
44PLCK
43MIRR/WFCK
42RFCK
41LOCK
40DVDD
39TSOI
38C16M
37DGND
36TX
35HOLD/WDCK
34LRCK
33LRCKIN
32SCKO
31SCKIN
30DOUT
29
28DIN
FLAG
27EMPH
26DVDD
EFM
COMPARATOR
EFM
EFM
DEFECT
FOK
A3T
MIRR
FEO
TEOTEOFSFEOFS
RF
AMP BLOCK
SWITCH
MICROCOMPUTER INTERFACE
SCF
OSC FOCUS 
REGISTER TRACKING
REGISTER
OCTUPLED
OVERSAMPLING DIGITAL FILTER
NOISE SHAVER
OUTPUT BUFFERNOISE SHAVER
OUTPUT BUFFER DE-EMPHASIS CIRCUITD/A
INTERFACE
CIRCUIT
OUTPUT PROCESSOR
DIGITAL
AUDIO
INTERFACE DIGITAL PLL
TIMING GENERATOR EFM DEMODULATOR
ERROR
CORRECTION
PROCESSOR
MICROCOMPUTER INTERFACE
CD-TEXT DECODER
SUB-CODE PROCESSOR
16K
SRAM D/A
AUTO GAIN 
CONTROLLERFD/TD/SD/MD
CONTROLLER
ADDER
SVDRAM
MULTIPLIERSVCRAM
SVROMROM
DECODER
CLV
PROCESSOR
DEFECT
COMPARATOR
RFENV
MIRENV
A/D CONVERTER
MEMORY
PROCESSOR
COMPARATOR
1 FWD
+–
+–
+–
2 REVLOADING PRE
FWD REV
3 LDCONT
6 IN2
7 PREVCC
8 POWVCC
VOL–
VOL+IN1
4 PS
+–
LEVEL 
SHIFT+–
+–LEVEL 
SHIFTLEVEL 
SHIFT+–
POWER
SAVE
CH1-4
MUTE X3
9
10
11 VO2–
12 VO2+
13 VO1–
14 VO1+
5BIAS
OPIN4+
OPIN4–
OPIN3–
OPOUT3
MUTE
POWVCC
GND OPIN3+ OPOUT4
VO3–
VO3+
VO4–
VO4+
7.5k
7.5k 16k
16k 7.5k
7.5k 16k
16k
10k10k
10k
10k
10k10k
10k
10k
10k 10k
10k
10k
+–
+–
+–
LEVEL 
SHIFT+–
+–
+–
10k
10k
10k
10k
+–
28
2726
23
22
21
25
2019
18
17
16
15
24
POWVCC34
(CH3,CH4) PREVCC
(PRE.LOADING)
POWVCC12
(CH1.CH2) 
						

							29
CDX-L550X/L570X
IC401  TDA7406T
33
3435
363738
39
4041424344
1234567891011
282730293231
SOFT STEP
FADERSOFT STEP
FADERSOFT STEP
FADER
SUB
WOOFER
FILTER
MONO
FADER
MIXER
OUTPUT SELECTOR
HIGH PASS
SOFT STEP
VOLUME
7BAND
EQUALIZER
SOFT MUTE
BEEP
PAUSEPLL
PIL, DET
LOUDNESS
SPECTRUM
ANALIZER
IN GAIN
+ AUTO
ZERO
MAIN SOURCE
SELECTORMIXING
SELECTOR
IIC-BUS
DIGITAL
CONTROL
DEMODULATOR
+STEREO ADJUST
+STEREO BLEND
PILOT
CANCELLATION
MULTI
PATH
DETECTOR
AM/FM
NOISE
BLANKER
PULSE
FORMER
SUPPLY
25kHz
LP
86kHz
LP
STD
IN GAIN
S & H
HIGH OUT
QUAL.
A/D
12
13
14
15
16
18
19
22
2120
INPUT MULTIPLEXER
TAPE R
FDR+
FDL–
FDL+
PAUSE
PHONE
TIM
NAVI
AM/MPX2
AMIF
CMPX
TAPELMDL MDRCDL CDR CREF AC OUTL SWACOUTACOUTRACINRSWIN
ACINL
MIXINFL
MIXINRL
MIXINRR
MIXINFR
OUTFL
OUTRL
OUTFR
OUTRR
OUTSW
SAOUT26252423
AUX1 LEVEL MP IN MP OUT QUAL
17
ATT GND SDA SCL SACLK VDD
CREF 
						

							30
CDX-L550X/L570X
1
19 234
520
67 89
1011
12
12 1314
15 16 17
18
#2#2
#2 #1
#1 MG-393X-121//K
#1
TU601
F901 #3
#1
#1#1 #2
#6
#2 #2
#5 #5 #5
SECTION 4
EXPLODED VIEWS
Ref. No.Part No.DescriptionRemark
4-1. CHASSIS SECTION
Ref. No.Part No.DescriptionRemark The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color  Cabinet’s Color
• Accessories and packing materials and
hardware (# mark) list are given in
the last of this parts list.RR
1 X-3380-007-1 PANEL ASSY (CD), SUB
2 3-041-039-01 BUTTON (EJECT)
*3 1-679-988-11 RELAY BOARD
4 X-3376-686-1 GEAR ASSY
5 3-030-909-02 DAMPER, OIL
6 3-713-786-51 SCREW +P 2X3
7 X-3376-687-1 LOCK ASSY
*8 3-224-309-01 COVER
9 1-776-207-82 CORD (WITH CONNECTOR) (POWER)
*10 3-024-285-01 CUSHION (RUBBER)
*11 3-041-173-01 BRACKET (CD)
12 3-922-535-11 SCREW (+BTT)*13 A-3283-103-A MAIN BOARD, COMPLETE (L570X)
13 A-3283-154-A MAIN BOARD, COMPLETE (L550X)
*14 3-224-312-11 HEAT SINK (MAIN)
*15 3-019-565-01 BRACKET (IC)
*16 3-041-261-01 BRACKET (TR)
*17 3-224-313-01 HEAT SINK (REG)
*18 3-224-308-01 CHASSIS
19 3-035-250-01 SCREW (LOCK)
*20 X-3376-689-1 BRACKET (GEAR) ASSY
F901 1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU601 A-3220-738-A TUNER UNIT (TUX-020)