Sony CX-LFA700 / XR-FA700 Service Manual ▷ View online
17
CX-LFA700
SECTION 6
DIAGRAMS
• Circuit Boards Location
PT board
D-OUT board
HP board
FRONT board
LED board
METER board
MAIN board
AMP board
CD board
18
CX-LFA700
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: B– Line.
• 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.
∗
: Impossible to measure
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: CD
L
: AUX
c
: DIGITAL OUT
E
: PB (TAPE)
a
: REC (TAPE)
Note:
The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
• Waveforms
– CD Board –
– CD Board –
– FRONT Board –
– MAIN Board –
1
IC601
tl
(XOUT)
1V/DIV, 25ns/DIV
1.52Vp-p
59 ns
3
IC101
qh
(CF2)
2V/DIV, 10
µs/DIV
2
IC101
qd
(XT2)
4.8Vp-p
30.5
µs
1V/DIV, 40ns/DIV
4.0Vp-p
116ns
4
IC861
7
(XO)
1V/DIV, 100ns/DIV
1.1Vp-p
230 ns
B
These are omitted.
C
E
19
19
CX-LFA700
6-1. Block Diagram
: PB (TAPE)
: REC (TAPE)
L
R
AUX IN
TUNER UNIT
L-CH
R-CH
VCC(+5V)
D OUT
D IN
CLK
CE
VSM
R-CH
VCC
FM DET
: FM
: CD
• Signal Path
• RCH is omitted due to same as L-CH.
: DIGITAL OUT
J602
Q603
PWR
CONT
: AUX
CD L
29
AUX
27
FUNCTION
IC601
METER AMP
IC751
SYSTEM CONTROL
IC101
VOLUME
JOG
X101
32.768kHz
15 CF1
16
JOG
ENTER
S123
12 XT1
13
X102
16MHz
CF2
XT2
TAPE L
2
6
PB OUT
S113
REC L
36
TU L
31
5
FUNC
PLL DO
97
PLL DI
95
PLL CL
94
RDS SIGNAL
27
RDS DATA
83
PLL CE
96
4
MAIN MUTE
78
STBY LED
OPTICAL PICK-UP
BLOCK
(KSM-213F)
A
B
C
D
E
F
LD
VC
GND
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
Q501
RF AMP
IC501
VC
17
A
32
B
30
C
31
D
29
E
27
F
28
LD
2
PD
1
MOTOR/COIL DRIVE
IC551
FE+
18
FE-
17
TE+
15
TE-
16
SL+
14
SL-
13
M
SLED
MOTOR
SP+
12
SP-
11
M
SPINDLE
MOTOR
F+
F-
T+
T-
22
FL IN
23
TE IN
5
SL IN
6
SP IN
2
CLOSE
FOD
28
DSP,D/A CONV
IC601
6
TX
V DET
35
25
FBAL
18
V DET
23
FE
20
TE
26
TBAL
24
GCTL
FE
32
TE
33
DIGITAL
OUT
OPTICAL
IC803
76
IL SW
18
XRST
INSIDE
LIMIT IN
RF DET
38
15
RF DET
8
M DATA
7
M CLK
9
MLD
17
STAT
13
BLKCK
10
SENS
RDS CLK
38
98 CD DATA
100 CD MCLK
86 CD MLD
99 CD STAT
26 CD BCLK
84 CD SENS
85 CD RESET
81 CLS CDT
82 OPN CDT
AMS
19
MS
20
HOLD
MUTE
CONT
CONT
Q735
26
OUT L
3
1
FUNCTION
KEY
S101,103,105
S107,109,111,114
18
KEY1
FUNCTION
KEY
24
KEY2
LED101
STANDBY
LED102
VOLUME
LED
DRIVE
Q102
80 OPEN SW
OPEN
79 CLOSE SW
CLOSE
Q863
MUX
1
XO
8
XI
7
11
RDATA
10
RCLK
RDS
IC861
X862
4.332MHz
BIAS
OSC
VDD
ERASE
HEAD
REC/PB
HEAD
DECK BLOCK
PB
SWITCH
Q305
L451
BIAS OSC
Q601
T SOL
DRIVE
DRIVE
Q401,403
MOTOR
DRIVE
Q402,404
REC/PB
3
R-CH
REC SW
25
MOT TP
9
PL TP
8
MECHA BLOCK
REC A
REC B
CST
CAM
DECK
MOTOR
SFR451
Q453,454
BIAS
SWITCH
Q451,452
VM
BIAS
1
M
ASO TP
10 CLK SHIFT
7
IC121
REG
Q631
R-CH
VM
REC
SWITCH
Q307-309
Q551
+5V
REG
VM
3
VCC
72
AVDD1
50
AVDD2
VCC(+5V)
72
AVDD1
50
AVDD2
REG
Q602
8
ARF
ARF
44
14
OFTR
OFT
36
12
BDO
BDO
39
10
3T OUT
RF ENV
34
FBAL
30
TBAL
31
GCTL
63
LDON
40
OP
10
CL
9
M
TRAY
MOTOR
FODOWN
14
TRD
29
KICK
26
TRV
21
TVD
22
1
OPEN
21
MUTE2
4
MUTE1
VM
ECM
24
ECS
25
73
OUT L
75
OUT R
R-CH
75 OPT SW
X602
16,9344MHz
58
XI
59
XO
Q861
CONT
19
Q615,616
87
METER MUTE
Q753
MUTE
Q751
MUTE
Q601
Q735
D753
D757
D755
R-CH
25
OUT R
74
DEMO1
J201
PHONES
R-CH
L
R
D082-085
RELAY
DRIVE
AC
IN
PT081
SUB TRANCE
Q003
R-CH
J203
SPEAKER
7V
REG
IC001
1
3
AC
DET
Q063,064
D011
Q617,619
Q603,605,607,609
Q611,613,615,627
Q611,613,615,627
PRE
AMP
POWER
AMP
DC
DET
THERMAL
DET
Q623
Q559,565
TH601
OVER LOAD
DET
Q626,630
SUB
WOOFER
J205
VP
REG
Q683
DC
DET
Q685,687
-VP
REG
Q684
DC
DET
Q686
-VH
PT001
MAIN TRANCE
11
17
12
16
13
15
FIL2
FIL1
RY081
D001-004
D005-008
-VFL
-VFL
REG
REG
Q001,002,014
VM
REG
VCC
REG
REG
Q009,010
+VH
-VH
+VL
-VL
VM
VCC
CD VM
OVER CURR
DET
Q060-062
D401
D077
D076
RESET
Q065-067
-VP
REMOTE
CONTROL
RECEIVER
IC104
29
RMC
2
3
RESET
SWITCH
Q101
11
RESET
RESET
IC103
1
3
21
PWR DOWN
D106
D102
µCON +B
D101
VDD
REG
REG
IC102
1
3
METER
LM201
R-CH
LED201,202
92
91
93
LED
DRIVE
Q201-205
LED1
DIMMER
LE2
45
47
50
.
52
67
.
SEG1
SEG21
31
44
GRID1
GRID11
FLUORESCENT
DISPLAY
FL301
FIL1
FIL2
-VFL
23
ENV JOG
S102,104,106,108
S112,115,119
22
ENV VOL
88
VOL LED
LED
DRIVE
Q103
D104
+5V
D689
Q011-013
D027
D030
D067
D060
D066
D042
2
POWER
D690
-VP
R-CH
20
20
CX-LFA700
6-2. Printed Wiring Board – CD Section –
• See page 17 for Circuit Boards Location.
IC501
IC551
IC601
29
24
26
Ref. No.
Location
D551
C-4
IC501
A-4
IC551
D-5
IC601
B-3
Q501
A-3
Q551
C-5
Q602
D-2
Q603
D-1
• Semiconductor
Location
Click on the first or last page to see other CX-LFA700 / XR-FA700 service manuals if exist.