Panasonic SC-EN25P / SC-EN26P / SC-EN27PC Service Manual ▷ View online
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13
A
B
C
D
E
F
G
H
OPERATION P.C.B.
H
POWER TRANSFORMER P.C.B.
I
SW P.C.B.
G
R849
R850
R851
R848
R847
R846
JW601
1
2
3
4
5
6
JK603
(AUX)
JK901
(120V 60Hz)
AC IN
J
J
J
J
L901
T901
(POWER TRANSFORMER)
F901
1.6A
ZA901
ZA902
D901
C901
D906
D904
C904
D902
C902
D903
C903
1
2
3
4
P901
1
2
JW352
S351
S808
( / )
R852
R509
R409
L601
S807
(CD / )
S806
(TUNER/ BAND)
S805
( / )
S804
( / )
S803
(VOLUME )
S802
(VOLUME )
S801
(POWER / )
SENSOR P.C.B.
E
JW1001
1
2
2
3
3
D1001
Z1001
(REMOTE
SENSOR)
1
C1001
SA-EN25/26/27(P,PC) LCD, LCD BACK-LIGHT, MOTOR, SENSOR, SW, OPERATION,POWER TRANSFORMER P.C.B.
LCD BACK-LIGHT P.C.B.
D
LCD P.C.B.
C
D1003
R1003
1
2
JW801
D1002
C1002
Z801
1
5
10
15
20
24
2
1
JW8011
FFC801
1
5
10
15
20
25
26
MOTOR P.C.B.
F
JW351
1
2
3
4
5
6
C353
IC351
1
5
9
S352
(CD BOTTOM DET.)
M351
(LOADING MOTOR)
M
J
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
REP4044A-M ..... SA-EN25/26(P)
REP4044B-M ..... SA-EN27(PC)
REP4044B-M ..... SA-EN27(PC)
R901
SC-EN25P / SC-EN26P / SC-EN27PC
29
SC-EN25P / SC-EN26P / SC-EN27PC
30
14 Block Diagram
BA5948FPE2
IC700
FOCUS COIL / TRACKING
COIL / TRAVERSE MOTOR /
SPINDLE MOTOR DRIVE
TRACKING COIL
FOCUS COIL
T+
T-
F+
F-
SPINDLE
MOTOR
TRAVERSE
MOTOR
BIAS
26
15
16
VO3-
VO3+
14
13
VO2+
VO2-
12
11
VO1+
VO1-
M
VIN3
28
VIN4
27
17
18
VO4-
VO4+
VIN2
1
VIN1
3
MUTE1
4
M
PGND1
PGND2
9
20
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
M5.5V
10
19
PVcc1
PVcc2
MUTE
[CH1]
MUTE
[CH2]
MUTE2
2
[CH3]
[CH4]
[CH2]
[CH1]
Vcc
25
OPTICAL PICK-UP
LASER
PHOTO DETECTOR
D3.3V
E
E
F
F
B
C
C
A
D
D
D3.3V
IC701
KEY SW
PD
RFOUT
RFIN
ARF
E
SA-EN25/EN26/EN27(P,PC) BLOCK DIAGRAM
28
LD
29
A
B
F
30
35
33
31
50
OUTL
54
OUTR
X700
(16.9344MHz)
X1
X2
70
71
IO
V
DD
3
15
IO
V
DD
1
56
IO
V
DD
2
72
D3.3V
RFV
DD
37
AV
DD
2
49
D3.3V
R ch
11
TRP
13
FOP
7
TR
VP
5
SPOUT
6
SPPOL
27
VREF
CR NET.
26
25
19
TEOUT
TEN
TEIN
CR NET.
23
24
20
FEOUT
FEN
FEIN
LASER
POWER
DRIVE
Q700
D3.3V
LASER
POWER
DRIVE
Q301
CD
BO
T
OOM
SW
MCLK
MDATA
MLD
BLKCK
MCLK
63
MDATA
64
MLD
65
BLKCK
67
STATUS
STAT
66
CDRESET
NRST
68
DV
SS
1
17
AV
SS
2
43
DV
SS
2
55
DV
SS
3
69
AV
SS
1
51
ARF IN
SEG0~19
COM0~3
81~100
1~4
Z801
LCD
KEY
SW
26
S351
(CD TOP DET.)
S352
(CD BOTTOM
DET.)
13
CD
T
O
P
S
W
12
CD
BO
TT
OM
SW
CD
BO
TT
OM
SW
MCLK
MD
A
T
A
MLD
BLKCK
39
MCLK
MD
A
T
A
MLD
BLKCK
ST
A
TUS
CD
RESET
ST
A
TUS
CD
RESET
40
42
50
41
44
XIN
XOUT
X801
(32.7kHz)
20
21
OSC2
OSC1
Q801
MBP2
MBP1
Q802
15
18
17
14
X802
(8MHz)
SWITCH-
ING
SWITCH-
ING
Q803
STBY3.3V
NRESET
23
MN101C74FAB1
IC801
SYSTEM CONTROL / LCD DRIVE
Z1001
(REMOTE
SENSOR)
SENSOR)
48
REM
IN
STBY3.3V
40
39
42
44
RF
AV
DD
1
53
D3.3V
ADPV
CC
18
VREF
STBY3.3V
RESET
BUP3.3V
S700
(REST)
REST
SW
43
MN6627552CB: SA-EN25/EN26
MN6627953HB: SA-EN27
MN6627953HB: SA-EN27
DSP
SC-EN25P / SC-EN26P / SC-EN27PC
31
FM
MIX
FM
OSC
AM
OSC
C1BB00001120
IC1
D1
AM
OSC
COIL
L7
AM
RF
AM
IF
REG
GND1
FM
IF
GND2
V
CC
2
AM
MIX
OSC
BUFFER
AM
IF
FM
IF
AM
DET
FM
DET
AGC
FM
S-METER
IF
BUFFER
SB
ST
TRIG
SF SW
PILOT
DET
FF
FF
FF
DE-
CODER
V
CC
1
V
SS
CCB
I/F
LPF
UNIVERSAL
COUNTER
DATA SHIFT
REGISTER
LATCH
VCO
PHASE
COMP.
MUTE
PROGRAMMER-
BLE DIVIDER
SWALLOW
COUNTER
UNLOCK
DETECTOR
PHASE DETECTOR
CHARGE MPX
REFERENCE
DEVIDER
THD
POWER ON
RESET
AM
RF-IN
REG
FM-MIX
GND1
AM-MIX
V
CC
1
AM
IF-IN
FM
IF-IN
P
DET
P
COMP
FM
DET
LOUT
R
OUT
V
SS
CE
DI
CL
DO
XIN
XOUT
V
DD
MPX-IN
DET
-OUT
AM
LO
W
-CUT
AG
C
PD
A-IN
A-OUT
B01
B02
AM-OSC
FM-OSC
V
CC
2
FM
RF-OUT
GND2
FM
RF-IN
FM
B.P.F.
L51
D3
D2
D3.3V
AM IFT
PLLDO
PLLCLK
PLLDI
PLLCE
R ch
SA-EN17(P,PC) BLOCK DIAGRAM
CD
OPEN
M
C0GAE0000007
IC351
MOTOR DRIVE
CD
CLOSE
M5.5V
6
M351
(LOADING MOTOR)
2,5,8
9
7
32
31
3
1
CD
OPEN
A
CDET
49
A
C
DET
P
.CONT
AG
D
A
T
A
A
G
CLK
51
33
34
PLL
CE
PLL
DO
PLL
DI
PLL
CLK
P
.CONT
AG
D
A
T
A
A
G
CLK
PLL
CE
PLL
DO
PLL
DI
PLL
CLK
38
35
36
37
MUTE
A
MUTE
B
45
MUTING
CONT.
QR804
STBY3.3V
V
SS
16
MN101C74FAB1
IC801
SYSTEM CONTROL / LCD DRIVE
VREF+
25
STBY3.3V
LCD
GND
VLC3
VLC2
VLC1
L801
BUP3.3V
9
5
6
7
V
DD
19
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
T1
CF2
CF1
X1
TELESCOPIC
ANTENNA
AM ANT
D9V
CD
CLOSE
C1,2
L2,
L3
TU5V
TP5
TP4
TP3
TU5V
D4
X2
(75kHz)
FM/AM IF AMP,
DET/AM OSC,
MIX/FM MPX
TP1
TP2
SWITCH-
ING
Q1
D3.3V
SC-EN25P / SC-EN26P / SC-EN27PC
32
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