Panasonic SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG Service Manual ▷ View online
21 Schematic Diagram for printing with letter size
33
SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG
FOCUS
COIL
COIL
TRACKING
COIL
COIL
B
D
C
A
GND
F
V
CC
B
LD
GND
E
VREF
A
LPD
1
2
3
4
5
6
7
8
9
10
2K
TE(F)
RF(-A)
TE(E)
GND
GND
GND
F+
T-
F-
T+
LD+
NC
LPD
RF(-B)
VREF
V
CC
0.22
0.22
16
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
CN101
B
C
D
E
F
G
D
S
Q101
B1CHGD000006
B1CHGD000006
POWER SUPPLY
CN401
M
M
8
3
4
2
5
6
7
1
TRAVERSE
MOTOR
SPINDLE
MOTOR
S202
(REST DET.SWITCH)
A
B
C
D
OPTICAL PICK-UP
F
E
D101
MA1
1
1TX
L401
47
H
L402
47
H
L403
47
H
C205
0.1
IC401
C0GBF0000017
C0GBF0000017
4ch MOTOR DRIVE
C401
0.1
B C
A
D
C431
2200P
C437
1
C404
1
A
B
C
C402
0.1
R401
4.7K
C405
4700P
C407
0.22
E
F
R405
47K
B
A C
D
C406
10V22
C403
0.1
C412
0.1
13 14 15 16 17 18 19 20 21 22 23 24
12
11
10
9
8
7
6
5
4
3
2
1
25
26
27
28
29
30
31
32
33
34
35
36
48 47 46 45 44 43 42 41 40 39 38 37
RF
COM
VS
CP1
CPC1
CP2
CPC2
VG
Vcc
FG
FIL
COMN
S/
S
PWM
BRK
MODE1
MODE2
NC
RMAX
VCOIN
VCO
VGREG
VSMON
TGND
PGND3
OUT3R
MUTE
VS3
IN1F
IN1R
IN2F
IN2R
IN3F
IN3R
CLK
GND
UOUT
VOUT
WOUT
OUT1R
VS1
PGND1
OUT1F
OUT2F
PGND2
VS2
OUT2R
OUT3F
D
E
N
F
G
H
I
J
K
L
M
O
R201
2.2
R202
22K
RJ402
0
SL101
(SHORT LAND)
S201
(LASER ON/OFF)
Q503
2SB709ATX
2SB709ATX
LASER POWER
DRIVE
DRIVE
G
H
A
R503
2.2
RJ501
0
0V
2.5V
2.5V
: POSITIVE VOLTA
3.9V
(2.8V)
0.1V
0V
3.9V
(2.8V)
(2.3V)
0V
0V
0V
0V
0V
2.5V
3.9V(2.8V)
0V
0V
0V
0V
0V
0V
1.1V
( 1.4V
) 1.9V
3.9V
0V
0V
0V
0V
0V
0V
(0.6V)
(0.3V)
(0.3V)
(0.6V)
(2.5V)
0.1V
(2.8V) 3.9V
(0.3V)1.2V
(2.7V) 3.6V
(2.1V)1.2V
(6.6V) 6.1V
(6.9V)7.3V
2.5V
0.1V
0.1V
(1.2V) 0V
(2.4V)
(2.4V)
(2.4V)
0.1V
(2.3V)
0.1V
(2.3V)
(0.1V)
(0.1V)
0V
2.5V
2.5V(1.7V)
0V
(1.8V)
34
SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG
IC301
C2BBGF000656
C2BBGF000656
SYSTEM CONTROL
S310
(HOLD)
ON
OFF
S302
(VOL
-
)
S303
(VOL
+
)
R371
1K
Q307
DTA143EUA106
DTA143EUA106
POWER SUPPLY
(REMOTE)
(REMOTE)
R301
3.9K
R308
4.7K
R312
8.2K
J
K
N
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
RFQFE
ZAN/JVDGE
HOLD
A.SHOCK
PLAY
REST
ZANSEL
FSSEL
X3SEL
CHGSEL3
CHGSEL
XBSSEL
XCSEL
TYPESEL
KANASEL
LASEQICSEL
NC
NC
NC
LED
NC
NC
NC
TXPOWER
MUTEL
JACKM1
JACKM2
HIGHMA
T
REMOCON
NC
NC
NC
NC
NC
NC
NC
NC
VL1
BLKCK
VL3
VL2
NC
BUZ
MUTEH
HPCNT
Vcc
XOUT
XIN
Vss
XCIN
XCOUT
RESET
CNVss
GUP
ICTRL
PC2
PC1
IDOWN
FG
NC
KEY
VMONIT
OR3
VMONIT
OR1
VMONIT
OR2
DOCT
OR
REMKEY
VREF
A
Vss
DOT
ACDET
ECS
S
TAT
MDA
T
A/DIDO
MCLK/SK
CHARGE2
CHAGE1
MLD
POWER
OPEN
NRFDETSEL
F
C304
100P
O
Q
S T U
W X Y
R325
33K
P
R326
1K
R324
27K
C
R304
1M
R302
100K
C302
1
Q304
UN5214TX
UN5214TX
MUTING CONT.
R397
100K
100K
Q305
UN5114TX
UN5114TX
LED DRIVE
G
D
S
D501
B0JCDD000002
Q502
B1CFHA000002
B1CFHA000002
SWITCHING
R310
1K
R329
100K
R359
10K
A
M
L
Z
e
O
C301
1
S301
(/)
b
M
B
IC302
C3EBCG000096
C3EBCG000096
EE PROM
DO
DI
V
CC
NC
GND
NC
5
6
7
8
4
3
2
1
SK
CS
R316
1K
R341
100K
R314
15K
S308
()
R331
27K
S304
()
S305
()
R321
100K
C303
2200P
C306
1
D361
B3AAB0000037
(CHG)
R306
180
R
V
R59
56K
R58
56K
56K
a
R311
1K
I
R320
1K
R315
1K
R374
1K
R317
1K
R318
1K
d
Q602
UN5114TX
UN5114TX
(OPEN)
: PLAYBACK SIGNAL LINE
LINE
0V
(1.2V)
2.5V
0V
2.5V
0V
(2.4V)0V
2.5V
1.1V
1.2V
2.5V
2.5V
2.4V
2.4V
2.5V
2.5V
(2.5V)
(0V)
2.4V
2.4V
2.4V
(0V)
2.5V
0V
2.5V
0V
2.5V
2.5V
2.5V
2.5V
2.5V
0V
0V(1.9V)
2.1V(1.5V)
2.4V
2V
2.5V
0V
2.4V(0V)
0V
0V
0V(1.1V)
2.4V(1.9V)
2.4V
2.4V(0V)
0V(2.4V)
2.4V
2.5V
0V
(0V)
2.4V
(2.4V)
0V
2.5V
2.5V
2.5V
0V
(2.4V)
2.5V
2.4V
0V
2.4V
(1.9V)
2.4V
(1.9V)
0V
0V
0V
0V
0V
0V
(0V)
2.4V
(0V)
2.4V
2.5V
35
SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG
IC501
MN6627962JB
MN6627962JB
SERVO AMP/SERVO PROCESSOR/
DIGITAL SIGNAL PROCESSOR/
DIGITAL FILTER & D/A CONVERTER
DIGITAL SIGNAL PROCESSOR/
DIGITAL FILTER & D/A CONVERTER
R502
56K
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
48
49
50
51
52
53
54
55
56
57
65 66 67 68 69 70 71 72 73 74 75
85
76
86
77
87
78
88
79
89
80 81 82 83 84
33
34
35
36
37
38
39
40
41
43
44
45
46
47
42
GIO0
AV
DD
1
HPCNT
IOV
DD
2
X2
X1
DV
SS
2
AV
DD
2
LOOUTL
AV
SS
1
A
VREF
LOOUTR
HPV
DD
L
HPOUTL
HPVssL
HPV
DD
R
HPOUTR
HPV
SS
R
NTEST
DV
DD
2
ATOFS
FEIN
AFOFS
CEA
RFENV
FEOUT
TEOUT
TEN
ADPV
CC
CLD
E
V
DD
LD
V
DD
DRV
TEIN
VREF
DUTYADJ
CKMON
PD
LD
FEN
DV
SS
1
LDQM
NCAS
NWE
NRAS
CKE
A3
A2
A1
A0
REGON
DR
V
DD
1
DV
DD
1
A10
BA1
BA0
21
22
23
24
PWMSEL
SPOUT
25
SPPOL
TR
VP
TR
VM
PLLFO
PLLF
IREF
DSLF
ARFIN
F
B
C
A
DCDET
L704
470
H
C510
1
C504
0.1
R505
680
C561
0.1
a
D
F
H
I
J
K
L
M
N
P
D
C
F
E
B
E
G
O
C704
0.1
C703
0.1
D502
MA729TX
C701
10V220
C702
1
L502
100
H
L504
100
H
G
26
27
28
29
30
31
32
58
59
60
61
62
63
64
90 91 92 93
TRP
TRM
FOP
FOM
IOV
DD
1
AV
DD
3
AV
SS
3
RFV
DD
RFN
RFOUT
RFIN
CAGC
ARFOUT
AV
SS
2
GIO1
GIO2
EXT0
X502
(16.9344MHz)
R518
1M
R519
150
R521
100K
C707
2200P
C505
0.022
C507
4V100
C531
390P
390P
C529
1
C526
0.1
C524
1
C528
1
C520
0.022
C523
1
R508
6.8K
C521
1500P
R507
10K
R506
82K
R504
75K
C516
0.022
C519
180P
180P
N
G H I
J K L E D
R513
100
C522
1
R517
100
C533
270P
C518
330P
330P
VREF
A
RF
R509
3.3
C61
1
0.1
R515
15
R601
0
C532
270P
R209
220K
220K
C202
6.3V22
1
3
2
R208
R524
100K
R207
H
(1V) 0.4V
(0.9V) 0V
(1.6V) 1.4V
(1.6V) 1.4V
2.5V
(1.1V) 0V
(1V) 1.2V
1.2V
(1V) 1.2V
(1.5V) 1.2V
(1.5V) 1.2V
2.5V
2.5V
(0.1V) 0V
0.6V
1.2V
1.1V
1.2V
(1.2V) 0.8V
(1.1V) 0.8V
(1.1V) 1.9V
(2V) 0V
(1.1V) 0.8V
1.2V
(1.4V) 1.9V
2.5V
2.5V
0V
(0.1V)
0V
0V
0V
0V
0V
0V
0V
(0.6V)
0V
0V
0V
1.5V
3.3V
0V
(1.6V)
0V
(1.5V)
0V
(1.5V)
0V
(1.5V)
0V
(0.1V)
3.1V
3.1V
3.1V
3.1V
0V
(1.5V)
0V
1.2V
1.5V
2.5V
1.2V
1.2V
2.5V
(1.5V)0V
3V
(1.5V)0V
3V
2.5V
3.1V
2.5V
(1.1V)1.5V
(1.1V)1.5V
0.8V
1.2V
(1.2V)
1.5V
: PLAYBACK SIGNAL LINE
: POSITIVE VOLTAGE LINE
(1.7V) 2.5V
(1.7V) 2.5V
36
SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG
Click on the first or last page to see other SL-CT720P / SL-CT720PC / SL-CT720EB / SL-CT720EE / SL-CT720EG service manuals if exist.