Sony CX-LFA660 / CX-LFA770 / XR-FA660 / XR-FA770 Service Manual ▷ View online
26
26
CX-LFA660/LFA770
CX-LFA660/LFA770
7-4. PRINTED WIRING BOARD — MAIN SECTION —
•
See page 21 for Circuit Boards Location.
:Uses unleaded solder.
IC501
IC601
IC002
PHONES
1
5
(CHASSIS)
(CHASSIS)
(DISC IN/OUT)
(LOADING)
M
MS-128
AMP
BOARD
CNA102
(Page 31)
AMP
BOARD
CNA101
(Page 31)
F
E
PT
BOARD
CN257
(Page 33)
D
FRONT
BOARD
CN801
(Page 29)
B
FRONT
BOARD
CN802
(Page 29)
C
BD81A
BOARD
CN201
(Page 24)
A
5
6
7
6
7
1
2
2
3
4
4
R-CH
L-CH
ERASE
REC/PB
HEAD
(REC/PB/ERASE)
+
-
+
-
+
-
AUS
EXCEPT AUS
CN606(11P)
CN605(15P)
TUNER
FAN
1
3
L
R
R
IN
SPEAKER
M D
L
IMPEDANCE
USE 6
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
S
S
1
1
1
10
11
9
1
3
E
E
E
E
E
E
E
E
E
E
E
E
E
1
9
1
2
4
5
1
2
26
27
660
660
660 660
EXCEPT
AUS
AUS
EXCEPT
AUS
AUS
1
7
660
660
JW655
EXCEPT AUS
JW674
AUS
L201
L202
770
660
EXCEPT AUS
1
2
A
B
C
D
E
G
H
F
3
4
5
6
7
9
8
10
• Semiconductor
Location
Ref. No.
Location
D001
C-3
D002
C-3
D004
B-2
D005
B-3
D006
B-3
D010
A-7
D011
A-7
D012
A-7
D020
E-6
D022
B-5
D023
B-4
D024
B-5
D025
B-4
D026
B-4
D027
B-4
D028
B-4
D029
B-4
D031
B-5
D033
C-6
D034
C-5
D035
C-5
D036
B-4
D037
B-5
D038
B-4
D039
C-6
D040
B-6
D041
B-6
D042
B-4
D043
B-4
D064
B-5
D201
D-4
D202
D-4
D203
E-3
D204
D-4
D205
E-3
D206
E-3
D207
E-3
D208
E-3
D209
D-4
D210
D-4
D290
G-7
D291
G-7
D301
E-7
D601
E-8
Ref. No.
Location
D602
E-8
D603
F-8
D604
E-9
IC002
E-5
IC501
B-7
IC601
E-7
Q001
B-3
Q002
B-3
Q003
B-4
Q008
D-3
Q009
C-5
Q010
D-5
Q020
E-6
Q021
F-6
Q060
B-5
Q061
A-5
Q062
A-5
Q063
B-5
Q064
A-4
Q065
A-4
Q201
D-3
Q202
D-4
Q203
D-4
Q204
D-4
Q205
D-4
Q206
D-5
Q290
G-9
Q291
G-9
Q292
G-9
Q293
G-9
Q301
E-6
Q302
E-7
Q303
E-6
Q304
E-7
Q305
E-6
Q306
E-7
Q307
E-6
Q450
C-7
Q451
D-6
Q452
C-7
Q453
D-7
Q454
D-7
27
27
CX-LFA660/LFA770
CX-LFA660/LFA770
7-5. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —
•
See page 34 for IC Block Diagrams.
2
3
4
5
6
7
8
9
10
11
12
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
13
L660,664,666
JW
NO MOUNT
10uH
L661,665,667
10uH
*3
Q454
Q306
Q307
Q293
Q290
IC501
D
6
0
4
D
6
0
3
D
6
0
2
D
6
0
1
D301
D291
D290
Q304
Q305
IC601
C292
C301
C302
C304
C458
C459
C460
C
5
0
1
C615
C616
C619
C620
C621
C622
C625
C626
C
6
2
7
C
6
2
8
C
6
2
9
C
6
3
0
C
6
3
2
C
6
33
C646
C647
C659
C660
J201
L501
R040
R041
R042
R043
R292
R293
R295
R296
R
2
9
8
R
2
9
9
R303
R304
R450
R455
R456
R457
R458
R
5
0
1
R
5
0
2
R
5
0
4
R
5
0
5
R
5
0
8
R606
R
6
0
7
R
6
1
5
R
6
1
6
R
6
1
9
R
6
2
0
R
6
2
3
R
6
2
4
R627
R628
R629
R631
R632
R633
R634
R635
R636
R639
R640
R641
R642
R647
R648
R659
R660
R666
T301
C637
R672
JW655 JW029
R643
R644
R645
R646
R650
R651
R652
R655
R656
R657
R658
R669
R670
FB661
R653
R654
C636
R609
R
6
1
0
R
6
1
1
R301
R302
Q291
C290
R
2
97
Q292
R291
L667
L666
L665
L664
L660
L661
FB667
C
6
5
2
C
6
7
0
C
6
4
8
C
6
4
9
C
6
5
0
C
6
5
4
C
6
6
3
C
6
6
4
C
6
6
5
C
6
6
6
C
6
6
7
FB666
FB663
FB665
CN604
C618
C
6
4
5
C
5
0
7
C506
C
5
0
4
C
5
0
2
C503
CN501
R
5
0
7
C
5
0
5
CN603
CN602
C
6
4
1
C617
R665
C
6
4
4
R
6
6
4
C
6
0
6
C
6
0
8
C
6
0
7
R
6
6
3
C
6
0
5
C
6
0
4
C
6
0
3
C614
C
6
1
2
C
6
1
3
R
6
0
8
C609
C610
R602
R601
R605
R
0
4
7
R
0
4
6
C611
R630
R
0
4
5
R
0
4
4
R294
FB664
R
2
9
0
C228
R250
R253
C225
C227
C226
CN290
C451
C457
C
4
5
6
R451
C
4
5
4
C453
R453
R452
C452
C303
C
6
3
4
C631
C
6
3
5
R637
R638
R
2
5
1
L201
R252
L202
R763
R759
R761
R
76
4
R762
R760
J702
CN701
CN601
CNA201
C
6
5
5
C
6
5
6
C
6
5
7
C
6
5
8
C
6
5
3
C
6
6
8
R668
R667
R
6
1
4
R
6
1
3
R
6
1
2
C642
C643
R
6
1
8
R
6
1
7
R
6
2
2
R
6
2
1
R
6
2
6
R
6
2
5
FB665
C669
R662
R661
Q453
Q452
Q450
Q451
Q302
Q301
Q303
R649
C624
R671
C623
C
6
5
1
FB660
R454
C763
W701
J601
KRC102M-AT
KTA1504
KTA1504
2SC3052F
T1-LF
KTC3198GR
-AT
BA6956AN
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
M
T
Z
J
-T
-7
7
-4
.3
C
M
T
Z
J
-T
-7
7
-4
.3
C
1SS133T-77
1SS133T-77
1SS133T-77
KRA303-RTK
KRA303-RTK
BD3881FV
4.7
50V
0.001
0.001
100 16V
10
50V
47
16V
10
50V
0
.0
1
4.7
50V
50V
4.7
50V
0.001
0.001
100p
100p
0.022
0.022
4
.7
5
0
V
4
.7
5
0
V
0
.0
0
3
3
0
.0
0
3
3
1
0
p
2
2
0
1
0
V
10 50V
10 50V
220p
220p
TERMINAL, 4P SP
100 1/4W
220 1/4W
220 1/4W
220 1/4W
8.2k
10k
0
47k
1
0
k
1
0
k
1M
4.7k
18k
6.8k
22k
2.2k
10k
5
.6
k
5
.6
k
1
0
0
k
1
0
0
k
5
6
0
2.2k
2
.2
k
8
.2
k
8
.2
k
4
.7
k
4.7
k
5
.6
k
5
.6
k
2.2k
2.2k
68k
470
470
39k
39k
56
56
5.6k
5.6k
150k
150k
15k
47k
10k
10k
22k
BIAS OSC
470
15k
16V
1k
JW
(660)
(770)
JW
JW
JW
JW
JW
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
0
100
100
0.01
15k
1
5
k
1
k
18k
18k
2SC3052F
T1-LF
47
25V
1
0
0
k
2SC3052F
T1-LF
1k
0
0
.1
0
.1
1
0
0
p
10
0
p
1
0
0
p
1
0
0
p
1
0
0
p
1
0
0
p
1
0
0
p
1
0
0
p
1
0
0
p
0
0UH
0UH
27P
4.7
50V
4
7
0
p
0
.0
1
0.01
0
.0
1
0
.1
100
16V
16V
5P
1
.5
k
0
.0
1
25P
21P
0
.0
1
4.7
50V
22k
4
7
0
p
1
.8
k
0
.0
0
4
7
0
.0
0
6
8
0
.0
0
6
8
1
.8
k
0
.0
0
4
7
0
.0
0
2
2
0
.0
0
2
2
0.47
50V
0
.2
2
5
0
V
0
.4
7
5
0
V
2
.2
k
180p
180p
15k
15k
2.2k
2
2
0
1
/4
W
2
2
0
1
/4
W
0.22
50V
68k
2
2
0
1
/4
W
1
0
0
1
/4
W
10k
0UH
1
0
1
/4
W
0.1
50V
10
1/4W
10
1/4W
0.1
50V
0.1
50V
17uH
17uH
0.1
50V
3P
0.012
100V
0.018
0
.0
0
6
8
18k
0
.0
0
6
8
0.015
50V
5.6
1/4W
5.6
1/4W
2.2
50V
220p
0
.1
330
10V
0
.1
390k
390k
1
0
10
2.2k
1/8W
1/8W
220 1/2W
220 1/2W
2
.2
k
1
/8W
220 1/2W
220 1/2W
5P
7P
5P
0
.1
0
.1
1
k
1
k
1
k
0.0022
0.0022
0
0.1
KTA1266GR-AT
2SD13873
2SC2001-LK
2SC2001-LK
2SK2158-T2B
2SK2158-T2B
2SK2158-T2B
22k
47 16V
0
47 16V
0
.00
1
JW
2.2k
0.1
25V
*
1
*
1
*
1
*
1
*
*
*
2
*
2
*
2
*
2
*
2
*
2
*
*
JW
(660)
(770)
JW
JW
JW
JW
JW
JR
JR
JW
*3
*3
*3
*3
*3
*3
28
28
CX-LFA660/LFA770
CX-LFA660/LFA770
7-6. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) —
30
27
29
28
25
26
3
4
24
13
12
16
18
20
14
23
21
22
5
31
32
33
34
35
2
1
8
6
7
11
9
10
15
19
R066
660: JW
770: 3.3 1/2W
770
*
R026
D001
D
0
1
2
R024
R036
R030
R031
R035
R
0
7
1
R052
R051
R
0
7
7
R080
R083
R
0
7
2
R203
R205
R
2
1
3
D
2
0
3
R
2
1
5
R
2
1
7
R214
R204
D
2
0
4
R
2
1
6
R
2
1
8
D
2
0
5
D207
D208
D
2
0
6
D210
D209
R096
C021
C013
R093
R
0
7
8
EP001
D
0
3
5
R033
D
0
2
0
C018
R011
R014
R015
R037
R054
R066
*
R081
R048
R
0
8
2
R027
D
0
2
2
D
0
2
3
D
0
2
6
D
0
2
7
D
0
2
4
D
0
2
5
D029
D028
D038
D037
D031
D036
D039
R
0
8
4
R201
R207
R209
R211
R208
R210
R212
R061
R063
R062
R065
D
0
3
3
D
0
4
0
D041
R055
R003
R002
R001
D042
D043
C023
C083
C035
R034
R076
D
0
3
4
C036
R070
C033
C039
R095
C031
R079
C032
D
0
3
2
Q060
IC002
C007
C008
C030
C027
D201
C201
C202
D202
R206
C004
C003
C006
C005
R
0
1
0
R
0
0
7
R017
C009
R094
D002
C011
FB001
C024
R013
C025
C026
R012
D006
C037
C038
CN003
CN002
CNA001
C019
C
0
2
0
D
0
1
0
D
0
1
1
C022
D004
D005
Q008
Q001
Q002
Q003
Q010
Q009
Q020
Q021
Q202
Q204
Q205
Q206
Q201
Q203
D064
Q063
Q062
Q061
Q064
Q065
C061
D018
R202
3.3
1/2W
3.3
1/2W
10k
G5SBA60L-6088
1
S
S
1
3
3
T
-7
7
4.7k
47k
22k
100
47k
5
6
k
1k
1k
2
.7
k
47k
47k
5
6
k
470
100k
1
k
1
S
S
1
3
3
T
-7
7
4.7
k
4
.7
k
1k
470
1
S
S
1
3
3
T
-7
7
4
.7
k
4
.7
k
1
S
S
1
3
3
T
-77
1SS133T-77
1SS133T-77
1
S
S
1
3
3
T
-7
7
1SS133T-77
1SS133T-77
82k
4700
25V
0.0047
82k
3
9
k
TERMINAL,EARTH
1
S
S
1
3
3
T
-7
7
470
1
S
S
1
3
3
T
-7
7
100 16V
4.7k
10 1/4W
100k
0
100
22k
2
2
k
22k
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
MTZJ-T-77-16A
2
2
k
1.5k
8.2k
2.2k
10k
6.8k
2.2k
10k
22k
10k
47k
8.2k
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
MTZJ-T-77-4.3C
3.3
1/2W
3.3
1/2W
3.3
1/2W
1SS133T-77
1SS133T-77
100
16V
16V
470
25V
25V
100
16V
16V
220k
4.7k
1
S
S
1
3
3
T
-7
7
470
16V
2.7k
4.7
50V
50V
10
50V
8.2k
0.1
8.2k
0.1
J
W
DTC114EKA
T146
TA78033LS
0.1
0.1
0.1
100
16V
RK46LF-T2
47
63V
47
63V
RK46LF-T2
100k
100000p
35V
100000p
35V
100000p
35V
100000p
35V
1
0
0
k
1
0
0
k
100k
0.1
50V
39k
G5SBA60L-6088
0.1
JW
100
25V
25V
3.3k
100
50V
50V
100
50V
50V
4.7k
MTZJ-T-77-36B
100
35V
35V
100
35V
35V
11P
9P
10P
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
4700
25V
10E-2
10E-2
2SC1623-L5L6
KTA1266GR-AT
KTA1266GR-AT
2SA1235-F
2SC1623-L5L6
KTA1266GR-AT
2SA952-K2
DTC114YKA-T146
2SK3377-Z-E2
2SA1235-F
2SA1235-F
2SC1623-L5L6
2SJ599-Z-E2
2SC1623-L5L6
RD3.3ESB2
2SA1235-F
2SA1235-F
2SA1235-F
2SC1623-L5L6
2SC1623-L5L6
47 35V
JW
1.5k
*
*
29
29
CX-LFA660/LFA770
CX-LFA660/LFA770
7-7. PRINTED WIRING BOARD — FRONT SECTION —
•
See page 21 for Circuit Boards Location.
:Uses unleaded solder.
IC801
IC803
IC802
MAIN
BOARD
CN603
(Page 26)
C
MAIN
BOARD
CN602
(Page 26)
B
TAPE
MECHANISM
DECK
u
|/
u
|/
DISPLAY
CD
6
i-Bass
BASS/TRE
PLAY MODE/
TUNING MODE
TUNING MODE
VOLUME
ALBUM
TUNER/BAND
+
-
TUNING
+
-
4
4
TAPE
CD
^
CD SYNC
MD
RECPAUSE/
START
START
(CHASSIS)
31
30
1
50
51
80
100
81
1
1
3
2
44 45
E
E
E
E
E
E
E
E
E
1
2
3
4
AUS
AUS
EXCEPT AUS
(FLUORESCENT INDICATOR TUBE)
1
2
A
B
C
D
E
3
4
5
6
7
FRONT BOARD
• Semiconductor
Location
Ref. No.
Location
D802
A-7
D803
C-5
D804
B-6
D807
B-5
D808
B-6
D809
E-4
D810
D-5
D811
D-6
D901
B-6
IC801
B-4
IC802
A-2
IC803
B-6
Q803
C-5
Q804
E-3
Q805
D-3
Q806
E-3
Q807
E-3
Q809
B-6
Q810
D-5
Q811
D-6
Q812
D-6
Click on the first or last page to see other CX-LFA660 / CX-LFA770 / XR-FA660 / XR-FA770 service manuals if exist.