Sony CDX-540RF / CDX-545RF / CDX-545XRF Service Manual ▷ View online
21
21
CDX-540RF/545RF/545XRF
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – SERVO Section –
M
M
6
7
VO4+
VO4–
VIN4+
VIN4–
10
11
VO2+
VO2–
MOTOR
DRIVE
MOTOR
DRIVE
COIL
DRIVE
12
13
VO1+
VO1–
VIN2+
VIN2–
42
43
FFDR
FRDR
38
39
31
32
22
21
5
4
VL0+
VL0–
FWD
REV
1
2
SFDR
SRDR
A
B
C
D
E
F
I-V AMP
PD
LD
DETECTOR
5
6
7
8
11
10
E I-V AMP
F I-V AMP
E
D
C
B
A
F
3
LD
RF
SUMMING
AMP
FOCUS
ERROR
AMP
RF EQ
AMP
16
RFO
14
FE
13
4
TE
TRACKING
ERROR
AMP
AUTOMATIC
POWER
CONTROL
Q101
APC LD
AMP
PD
AGC
22
21
20
LDON
HOLD SW
AGCCONT
APC PD
AMP
LDON
HOLD
AGC
RFDC
FE
TE
54 50 52 51
RFDC
FE
TE
61
60
59
ASYMMENTRY
CORRECTOR
RFAC
ASYI
ASYO
ASYO
DIGITAL
PLL
EFM
DE-
MODULATOR
D/A
INTER-
FACE
63 66 65
64
FILO
CLTV
PCO
FILI
83
EMPH
FILTER
INTERNAL BUS
77
81
79
78
82
80
PCMD
LRCK
BCK
32k RAM
ERROR
CORRECTOR
54
55
56
LDON
HOLD
AGC
LDON
AGCHOLD
RF AGC
91 GFS
22
GFS
6
CDDATA
13
DATA
7
CDCLK
15
CLOK
5
CDXLT
77 SQSO
79 SQCK
82 SCOR
92 SCLK
90 FOK
XRST
14
XLAT
93 SENS
16
SENS
6
SQSO
7
SQCK
24
SCOR
17
SCLK
32
FOK
CPU
INTERFACE
SUBCODE
PROCESS
PROCESS
RFDC
FE
TE
SE
OP AMP
ANALOG SWITCH
A/D CONVERTER
MIRR
DFCT
FOK
DIGITAL SERVO
SIGNAL PROCESS
PWM GENERATOR
40
41
25
24
TEDR
TRDR
VIN1–B
18
8
9
VO3+
VO3–
VIN3+
VIN3–
DIGITAL
CLV
35
MDP
M
M103
(CHUCKING)
M102
(SPINDLE)
M101
(SLED)
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
MOTOR
DRIVE
COIL
DRIVE
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
94
CH. F
71
CH. R
72
89
11
XRST
36
SSTP
LIMSW
SW3
(LIMIT)
65 LOAD1
SW1
(CHUCKING END DETECT)
66 LOAD2
SW2
(SAVE END DETECT)
ON : When the optical pick-up
is inner position
is inner position
ON : When completion of the disc
chucking operation
chucking operation
ON : When completion of the disc
save operation
save operation
84
SERIAL
IN
INTERFACE
DIGITAL FILTER,
NOISE SHAPER
90
97
91
96
AOUT1
AOUT2
LOW-PASS
FILTER
AIN1
AIN2
92
95
LOUT
ROUT
GROUND ISOLATION
IC401
EMPHI
PCMDI
LRCKI
BCKI
A
(Page 22)
L, R
L
R
MUTING
Q410, 420
87
XTAO
86
XTAI
X130
16.9344MHz
TIMING
LOGIC
CLOCK
GENERATOR
4
AMUTE
MUTING
CONTROL
Q401, 402
SYSTEM CONTROLLER
IC201 (1/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER,
DIGITAL SERVO PROCESSOR
IC101
(TRACKING)
(FOCUS)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS-720A)
05
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
• SIGNAL PATH
: CD PLAY
LASER DIODE
PWM
&
INTEGRATOR
22
22
CDX-540RF/545RF/545XRF
7-2.
BLOCK DIAGRAM – MAIN Section –
18
GAMMA
AMP
L IN
1
GAMMA
AMP
R IN
MPX
17
15
6
8
MPX
BAL
MPX
BAL
TRANSMITTER
L/R BALANCE
RV701
X701
38kHz
OSC
BUFFER
13
MPX
MPX
IC701
38K
38K
A
(Page 21)
L, R
L
R
BUFFER
Q701
RF AMP
Q702, 703
BUFFER, AMP
Q781, 782
15
11
PLL
5 4 3
1
2
DATA
CLK
CE
X781
7.2MHz
XOUT
XIN
PD2
FMIN
PLL
IC781
3
ACC
2
B. UP
OUTPUT
CN703
POWER
CN303
98
97
96
PLLDATA
PLLCLK
PLLCE
PLLDATA
PLLCLK
PLLCE
62
ACCIN
60
MCK
PLLDATA
PLLCLK
PLLCE
ACCESSORY
CHECK
Q308
D311
59
EHS
51
AVREF
ELVON
RV201
ELEVATOR HEIGHT
(ADDRESS)
RV202
ELEVATOR HEIGHT
SENSOR
REFERENCE VOLTAGE
SWITCH
Q201
B. UP +5V
9
LCDON 36
+8V
REGULATOR
IC304
DRIVER +8V
+10V
REGULATOR
Q311
+5V
REGULATOR
IC304
MPX +5V
LCD +10V
REGULATOR
CONTROL
Q309, 310
BUCHK 75
D306
D302
D307
38
CDON 8
EJECT 63
SW302
(RESET)
B. UP +5V
KEY +5V
+5V
REGURATOR
Q303
+5V
REGURATOR
IC305
DAC/SERVO +5V
Z
SW301
76 MGLK
74 ELVF
73 ELVR
SW201
MAGAZINE
DETECT
ON : When magazine
is set
is set
3
4
48 EEDATA
49 EECLK
40 XTAL
41 EXTAL
80 KEYACK
95 ADON
58 KEYIN
5
6
9
7
MOTOR
DRIVE
IN1
IN2
OUT1
OUT2
ELEVATOR
MOTOR DRIVE
IC301
M
M104
(ELEVATOR)
DATA
CLK
EEPROM
IC203
X201
12MHz
KEY ACTIVE
SWITCH
Q231
KEY +5V
SWITCHING
Q232
44 LCDDATA
45 LCDCLK
37 LCDCE
43 LCDINH
83 SIRCS
6
7
4
5
8
1
3
DISPLAY
CN302
+10V
POWER ON
SIRCS
LCDINH
LCDCE
LCDCLK
LCDDATA
KEYA/D
B. UP +5V
SYSTEM CONTROLLER
IC201 (2/2)
05
• SIGNAL PATH
: CD PLAY
RESET
DEVIATION
RV702
HIGH VOLTAGE
DETECT
Q301
BATTERY
CHECK
Q301, 302
BATT B+
BATT B+
RESET SIGNAL
GENERATOR
IC303
D308
23
23
• Circuit Boards Location
7-3.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD PLAY
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
MAIN board
FM board
RF board
LSW board
SW board
24
24
CDX-540RF/545RF/545XRF
7-4.
PRINTED WIRING BOARDS – RF/LSW Boards –
•
See page 23 for Circuit Boards Location.
• Semiconductor
Location
– RF Board–
(Component Side)
(Component Side)
Ref. No.
Location
IC101
H-4
IC201
I-3
Q101
F-4
(Page 26)
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