Sony CX-LFA600 / XR-FA600 Service Manual ▷ View online
21
21
CX-LFA600
7-2. BLOCK DIAGRAM – MAIN SECTION –
: TUNER
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
: AUX
: PB (TAPE)
: REC (TAPE)
R-CH
BIAS
OSC
Q301
Q302
Q302
+VM
ERASE
HEAD
REC/PB
HEAD
TAPE DECK
Q610
REC/PB
SWITCH
BUDO
74
BUCK
BUDO
BUCK
TUCE
84
SYSTEM CONTROLLER
IC601(2/2)
TUDI
75
L
R
AUX IN
J101
J301
PHONES
R-CH
R-CH
R-CH
L
R
L
R
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC606
S754-760
D605
ECO
TUNER UNIT
L-CH
R-CH
R-CH
DI
DO
CLK
CE
TUNED
R-CH
TU +10V
TU +5V
TUNED
93
Q101,305
REC/PB
SWITCH
Q102,306,307
T301
REC BIAS
Q303,304
BIAS
SWITCH
SW1
PLAY
T SOL
DRIVER
Q609
MOTOR
DRIVER
DRIVER
Q607,608
TREC
77
SHIFT
XCE
Q6
DATA
CLK
STRB
CDON
TUON
Q5
Q2
Q1
Q3
Q4
7
T-SW
24
XT1
12
XT2
13
X601
32.768kHz
XIN
15
XOUT
16
X602
8.64MHz
IC102
POWER AMP
+VP
ST_BY
Q104
MUTING
9
AMUT
29
RMC
FUCTION
KEY
S761-766
19
KEY2
BASS
ENCODER
S751
20
BASI
6
LED
3
1
RESET
SWITCH
Q606
11
RESET
RESET
IC604
2
1
D606
26
SHDET
D901-904
RELAY
DRIVER
AC
IN
Q902
RY901
18
KEY1
+10V
+5V
SOUND PROCESSOR
IC101
AUX-L
19
18
OUT-L
TUNER-L
23
TAPE-L
2
CD-L
21
16
OUT-R
R-CH
R-CH
R-CH
13
CONT
28
REC-O-L
RMUT
82
RDDAT
81
TUST
92
STEREO
MUTE
RDDAT
RDCK
RDCK
27
R-CH
R-CH
SW2
REC F
SW3
REC R
SW4
PACK
SW5
TEND
M
M1
DECK
MOTOR
SOL
ROUT
R-CH
LOUT
FCNT
10
HDPN
79
TEND
5
TSOL
4
MOTOR DRIVER
IC605
IC602
SHIFT REGISTER
OUT1
4
7
6
CH1_IN
8
CH2_IN
CH1_OUT
CH2_OUT
12
3
4
10
VCC
2
13
14
2
3
1
80
5
4
7
FIN
OUT2
2
9
RIN
OPEN
M
TRY
MOTOR
CLOSE
CD OPEN/CLOSE
28 OPCL
R-CH
J103
J104
SPEAKERS
SUB WOOFER
45
47
50
.
52
66
.
S1
S20
34
44
G1
G11
FLUORESCENT
INDICATOR TUBE
FL601
FIL1
FIL2
TREBLE
ENCODER
S752
21
TREI
VOLUME
ENCODER
S753
22
VOLI
POWER
CONTROL
D604
+5V
REG
Q601-603
IC601 VDD
V_ECO
D607
POWER
SWITCH
8
PCON
Q604
Q605
V_ECO
T901
MAIN
TRANS
T902
SUB
TRANS
FIL2
FIL1
D308
D906
D911
D907-910
-VFL
REG
REG
Q901
-VFL
-VP
+VP
+VM
REG
Q903-905
+VM
TUON
CDVM
CD +3.3V
TU +10V
D321,302-304
D602
AC
DET
Q313
DC
DET
Q311,312
HOLD
Q314
25
HOLD
L-CH
A
CD
SECTION
B
CD
SECTION
73
Q315
SWITCH
Q321
SWITCH
Q308
MUTING
CONTROL
Q316
STANDBY
SWITCH
Q4,5
OVERLOAD
DET
Q3
OVER
CURRENT
DET
Q1, 2
FAN
DRIVER
Q317,318
+3.3V
REG
Q319,320
B+
SWITCH
FAN
R-CH
TUON
CDON
22
22
CX-LFA600
7-3. PRINTED WIRING BOARD – BD SECTION –
• See page 18 for Circuit Boards Location.
IC104
IC101
IC121
IC102
IC103
E
TP7(VC)
TP4(FE)
TP2(TE)
TP8(RFAC)
TP6(RFDC)
(A-MAX.3)
TO
MAIN
BOARD
CN102
(Page 24)
A
TO
MAIN
BOARD
CN107
(Page 24)
B
1
2
A
B
C
D
3
4
5
6
7
Ref. No.
Location
IC101
B-6
IC102
C-6
IC103
C-5
IC104
B-5
IC121
C-5
Q101
C-3
• Semiconductor
Location
•
: Uses unleaded solder.
23
23
CX-LFA600
7-4. SCHEMATIC DIAGRAM – BD SECTION –
• See page 19 for Waveforms.
• See page 31, 32 for IC Block Diagrams.
(A-MAX.3)
TO
MAIN
BOARD
CN102
(Page 26)
A
TO
MAIN
BOARD
CN107
(Page 26)
B
RV101
IC102
CN102
R116
CN104
M101
M102
C152
CN101
R131
R118
R111
C103
C101
C111
C108
C109
C102
C117
R123
C116
R114
C132
R122
R133
C115
R115
C107
Q101
C110
R132
R103
R120
R104
C153
R220
C151
R221
R226
R225
R227
R222
R224
R223
TP3
TP4
TP2
R202
R201
R252
R266
R218
R203
C226
IC101
C202
C205
C230
R151
C209
R204
R219
C112
R206
TP7
R265
TP5
R253
C258
TP9
TP8
TP6
C104
C212
C114
C229
C213
C292
R250
C255
R251
R216
C259
C266
C253
R279
R255
R257
R276
R259
FB161
C251
C227
C222
C208
C203
R168
R166
C150
C169
C231
C268
R249
R230
R260
C122
C316
R233
R231
R232
C156
C269
C263
R126
R125
R117
R113
L163
R309
R167
R169
R101
C113
IC103
R308
C211
FB203
R310
FB201
FB204
IC121
C260
R313
R318
R321
R319
R316
R314
L101
R311
C314
C261
C265
FB351
IC104
C121
FB291
R291
R271
R272
C274
R275
C271
C267
FB103
R261
FB102
C249
FB104
C270
C257
C256
C250
X201
C254
R303
R205
C216
C224
C273
C313
C133
C131
C118
C119
R155
R207
C215
C264
R351
C310
R199
TP1
R152
R105
R102
47k
33k
0.1
16P
68k
10k
150k
470p
470p
47 4V
0.1
0.1
0.1
B
0.1
3.3
0.1
B
390k
0.022
100k
2.2k
100 10V
33k
33p
2SB970
0.1
B
330k
100k
120k
15k
0.1
1k
0.1
100
100
100
100
100
100
100
SE
FE
TE
10k
33k
1k
100k
47 4V
CXD3068Q
0.1
0.1
0.1
1k
0.1
VC
RFACI
CKO
RFAC
RFDC
3300p
1000p
BLM21P331
0.1
220 10V
150
0
0
0
100
10V
10V
CXA2647N
0
0
0
0.01
1
220p
2.2
0.068
1
1
0.47
B
0.1
0
SP
1k
15k
AN41020A
100k
220
220
1k
1M
22p
100p
4.7k
3.3k
23P
11P
0
0
1M
220
220
100
100
1k
100
100
1000p
0.1
0.1
0.1
0.1
0.1
1500p
0.1
0.1
3300p
100
0.1
0.1
47 4V
47 4V
220 10V
1000
6.3V
6.3V
4700p
560
0.1
0.1
330
330
330
0.01
47k
47k
390k
2.7k
0
0
0
0.1
0
0
0
0
BA25BCOFP-E2
100
6.3V
0
0
0
0
0
1
220
4V
47
4V
4V
0
TC94A20F-CX4
0
0
10k
4.7k
0.01
10k
0.01
4700p
0
0.1
0
0.1
0
220p
0.33
0.1
0.1
16.9344MHz
22p
0
1k
0.1
0
1M
47
4V
4V
0
2.2k
24
24
CX-LFA600
7-5. PRINTED WIRING BOARDS – MAIN SECTION (COMPONENT PARTS) –
• See page 18 for Circuit Boards Location.
E
E
E
E
E
E
E
E
E
E
1
2
17
16
23
24
1
2
1
8
1
5
1
5
1
11
1
12
1
2
3
1
15
2
14
1
10
2
11
23
22
1
2
IC102
MAIN BOARD
(COMPONENT PARTS)
PHONE BOARD
1-860-190-
R
L
AUX IN
1-860-189-
TO
FRONT BOARD
CN601
(Page 27)
C
TO
FRONT BOARD
CN602
(Page 27)
D
TO
PT BOARD
FW901
(Page 30)
E
TO
BD BOARD
CN102
(Page 22)
A
TO
BD BOARD
CN104
(Page 22)
B
FAN
TUNER
PACK
5
6
7
1
2
3
4
L-CH
R-CH
ERASE
HEAD
REC/PB
HEAD
SPEAKERS
R
L
SUBWOOFER
4
2
3
1
PHONES
1
2
A
E
D
C
B
F
G
H
I
J
3
4
5
6
8
7
9
Ref. No.
Location
D1
H-9
D2
H-9
D3
D-9
D4
D-7
D5
D-6
D6
D-3
D7
J-7
D8
J-5
D9
J-5
D10
J-5
D301
A-6
D302
B-3
D303
B-2
D304
C-2
D305
C-3
D306
E-4
D309
G-8
D310
G-8
D311
E-6
D312
E-7
D313
F-8
D314
A-6
D315
A-6
D316
F-6
D317
F-7
D318
B-2
D319
B-2
D320
B-4
D321
C-3
D907
I-3
D908
I-3
D909
I-3
D910
I-3
D911
I-3
D912
I-2
D913
H-2
D914
H-4
D915
G-7
D916
G-7
IC102
I-8
Q1
D-7
Q3
I-6
Q301
H-2
Q302
H-2
Q303
H-3
Q317
F-8
Q319
E-6
Q901
I-2
Q903
G-8
Q904
G-7
• Semiconductor
Location
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