Panasonic SJ-MR220 Administrator Guide

IC903
B1MBBDA00002
POWER MOS FET
(MAGNETIC HEAD DRIVE)
2
1
3
4
5
6
7
8
9
106
5
4
3
2
1
( RECORDING
HEAD)
B
CN2
4
3
1
2
LIFT MOTOR IC904
B1MBBLA00001
POWER MOS FET
(MAGNETIC HEAD DRIVE)
C
B
A
D912
ZHCS1006TA
C914
15P
D913
ZHCS1006TA
A
B
C
D
R912
6.8
C915
0.047
A
CN901
CN3
C912
4V10
C913
0.1
S1
TP146
TP148
TP147
8 7 6 5
1 2 3 4
D1 S1 S1 G1
G2S2S2D2 8 7 6 5
1 2 3 4
D1 S1 S1 G1
G2S2S2D2
IC401
C0GBZ0000006
FOCUS/TRACKING COIL,
TRAVERSE MOTOR DRIVE,
SPINDLE MOTOR DRIVE,
ROTARY DETECTOR
C
A
D
B
TRAVERSE
MOTOR
1
3
4
2
CN403
C418 0.33
D
4
2
1
3
SPINDLE
MOTOR CBA
CN404
C417 0.033
C416 0.033
R412
6.8K
BAC
3
61
60
59
56
4746444342413938
S3 BEM FU BEM FV BEM FW SL COM SL PG2 SLW OUT SL VM2 SLV OUT SL PG1 SLU OUT SL VM1 Vcc2 Vcc1 VG C2M
PW IN1
SPU IN
SPV IN
SPW IN
SP COM
RIB
CST
CSL1
CSL2
FG
BRK+
BRK
-
AS GND
S GND
S1
S2
IN1R
IN2F
IN2R
STALL
STHB
SP VM1
SPU OUT
SP PG1
NC
SPV OUT
SPVM2
SPW OUT
SP PG2
PW VM
PW OUT
PW PG
C2P
C1M
C1P
EXT CLK
NC
H2 PG2
H2R OUT
H2 VM
H2F OUT
H1F OUT
H1 PG1
IN1F
H1 PG2
H2 PG1
H1R OUT
H1VM
10111214
1516 4
5
67
30
33 373635 34
32
29
24
23
28
26
25
19
18
17
22
21
20
8
50
49
52
51
62
58
55
54
53
13
4540
27
9
31
12
64
63
57
48
L411
C411 4V22
C404
0.1
C
B
A
C412 2200P
C413 2200P
C414 2200P
R411 470
C419 0.1
C420 0.1
C402
0.1
E
F
G
H
I
J
K
L
M
R431 10K
C401
4.7
C415
0.033 AB
R401
47K
TP420
U
VW
U
VW
CBAD
ABCD
C403
1
N
E
A
B
C D
NOTE:
The number which noted at the connectors on the schematic diagram as
"SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2"
indicates the schematic diagram serial number located on the left corner in the schematic diagram.
MAIN CIRCUIT
TP145
U
VW
RECORDING HEAD
CIRCUIT SJ-MR220(EB,EG,GCS,GH) MAIN,RECORDING HEAD SCHEMATIC DIAGRAM
0V 0V 0V 2.2V 0V 0V 0V 0V 0V 1.4V 0.5V
0.4V
0V
0V
0V
0.1V
0V
0.2V
0.8V
0V
1.2V
0V
2.2V
2.2V
2.2V
2.2V
0V 0V 0V
1.5V
1.5V
1.4V
1.5V 1.5V 1.4V 2.2V 2.2V
5.5V 1.2V
4.8V
0.8V
2.9V
0V
1.4V
0V
0V
1.4V
0V
0V
(0V)
(0V)
(0V)
(0V)
(2.2V)
(1.1V)
(2.2V) (2.2V)
(0V)
(0V) (0V) (0V) (0V)
(1.8V)
(2.2V)
(1.8V)
2.2V
1.5V 0V 0V 0V
0V0V0V1.5V
(0.7V) (0.7V) 0V 0V
0V0V
(3.1V)
1.5V
1.5V
1.4V
:POSITIVE
VOLTAGE LINE
:RECORDING
SIGNAL
"DIGITAL" LINE
2.2V (0V)
(2.2V)
(0V)
(1.7V)

TRACKING
COIL
FOCUS
COIL
A
B
C
D
A
C
B
E
D
PD-C
PD-A
TRK+
FCS-
TRK-
FCS+
VREF
LD
B
A
F1
F2
RF1
HFMV
C
Q1
2SB1295-6-TB
LASER POWER DRIVE
I
H
G
F
J
E
D
C
B
A
D
CN1
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 Vcc
D
GND
RF2
PD-GND
B
C
A
R4
4.7K
R3
1.5
C20 0.22
LD-GND
TP406
TP407
TP402 TP403
IC901
C0GBE0000003
MOTOR DRIVE
12345678910 11
24 23 22 21 20 19 18 17 16 15 14
12
13
V U START PGND GND Vcc1 OSC VREF VSP IN+ OUT
RI TC1
TC2
PW
PU PV DR FC
COM
PGND
NC NC
W
Q901
DTC144EETL
SWITCHING
(DIRECTION CHANGE)
B
A
C
IC902
C0JBAZ001767
INTERFACE
A
C
B
E
F
C904
0.22
C905
4700P
C906
4700P
C907
4700P
C908
0.1
C909
0.01
TH901
10K
C901
4V22
C902
0.22
R902
15K
R901
6.8K
R903
1.8K
C903
0.047
R904
470
R911
47K
D911
MA133TX
G
R905
1K
21
14 13 12 11 10 9 8
1234567
APCPD GND
VREF
RF2 RF1
D
C
Vcc
B
F2 F1
A
LD
LD GND
1 2 3
4
65
GND
LD GND
GND
IDC(LD) HFMV
GND
E
EDCBA
F
F
0.1
1
300 H
A1 H
0.22
B
C
D
E
TP401 TP404
C2
1
R6 15
C21 0.22
R2
2.7K
R1
4.7K
C1
0.22
R5
270
K
C5 1
D
E
7
6
5
4
3
2
1
Vcc
14
13
12
11
10
9
8GND
4B
4A
4Y
3B
3A
3Y
2Y
2B
2A
1Y
1B
1A
C911
0.1
Q911
DTC144EETL
SWITCHING
C
D
L
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
MD OPTICAL PICKUP
1.5V
1.7V
1.2V
0V
1.7V
1.2V
0V
0V
1.7V
1.2V
0V
1.7V
1.2V
1.2V (2.8V)
(3.5V)
(2.8V)
(3.5V)
(1.7V)
(2.8V)
(3.5V)
(2.8V)
(3.5V)
(3.5V) 2.3V 2.3V 0V 1.5V 0V 0V 0V 0V 0V 0V
2.3V2.2V0V0V0V1V1.5V
1.9V
1.5V
(1.4V)
2.2V
(0V)
1.7V
(0V)
2.2V
0V
1.2V(3.5V)
0V
1V
(2.2V)
0V
:POSITIVE VOLTAGE LINE :RECORDING SIGNAL "DIGITAL" LINE :PLAYBACK SIGNAL LINE

C30
4V10
D
B
C
F
H
I
A
E
J
K
R11
2.2K
C53
0.47
C52
0.1
TP408 C51
1000P
C31
0.1
G
C34
4V10
IC1
AN22010A-VF
RF AMP
R41
10K
TH40
10K
TP409
R7
470K
C3
0.1
C35
0.1
C50
0.1
L
HI J
R42 47K
O
P
Q
R
S
T
U
V
W
X
Y
Z
a
b
d
e
f
g
h
A
C4
4700P
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
12 45678910
47
46
45
44
43
42
41
40
39
38
13
14
15
16
17
18
19
23
36 35 34 33 32 31 29 27 25
48
311 12
20
21
22
24
2630 28
37
DARK DET.
DARK DET.
4TAP
4TAP
SW
3TENVAGC
BOTTM DET.
PEAK DET.
EQ
SWITCH
X1 BPF
X2 BPF
CLV2
3TAP
3TAP
3TAP
3TAP
BAND CAP
NRFSTBY Vcc
VREF
NRFSTBY LDON CLV2 MONIOFF GND2
GND1
LDON
SELECT
SIGNAL
MAIN CIRCUIT
2.2V
1.5V 0V 0V 0.4V 1.1V 1.3V 1.1V 1.1V 1.2V
1.1V
1.2V
0.8V
0.6V
0.7V
2.2V
1.2V
1.1V
1.1V
1.1V
1V2.2V2.2V2.2V2.2V2.2V2.2V2.2V1.2V
0.9V
1.1V
1.1V
1.1V
1.1V
1.1V
1.1V
1.1V
1.1V
1.2V
(1.4V)
(0V) (0V) (0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)(0V)(0V)(0V)(0V)(0V)(0V) (0V)
PLAY
0.3V
P-P
0.5 s. 50mV/DIV.
PLAY
0.5V
P-P
0.5 s. 0.1V/DIV.
:POSITIVE VOLTAGE LINE :PLAYBACK SIGNAL LINE

X501
(10MHz)
IC501
MN101C61GAB
SYSTEM CONTROL/
LCD DRIVE
E
IC502
C3EBCG000052
EE PROM
DO
DI
VCC
NC
GND
NC
5
6
7
8
4
3
2
1
CLK
CS
R503
330K
IC503
C0EBC0000035
RESET
F
H
A
B
C
D
80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
4039383736353433323130292827262524232221
HOLD SW
PROTECT
MHEAD UP
DEBUG2
DEBUG1
NC
MUTE B
MUTE A
MONI OFF
LCD CNT
DC IN WAKEUP
EL ON
AKM PDN
AKM CCLK
AKM CSN
AKM CDTI
EE P DATA I
EE P DATA O
EE P CK
EE P CS CHARGE LCD CK LCD DATA CFSYNC SCTSY
WAKEUP
OPENSW EFMON MIC SENS LCD STB NC SELAD RST BUZZER SSCLK SSDR SSDW
LSI STAT
LINK RXD
REM DATA
MMOD
XO
XI
Vss
OSC1
OSC2
VDD
VREF+
OUTC
DOCTOR
LDPADJ
BATT1
TEMP
KEY IN
REM KEY
MDISY
MSPRST
NRFSTBY
STBY2
PC
FPOUT3
PWR CNT
REC CNT1
RF CNT
REC CNT2
HFON1
MIC/ LINE
LOAD1
LOAD0
FPIN3
FPIN2
FPIN1
FPOUT2 FPOUT1
INSEL
MIC
DET
VREF- DC IN DET
F
G
H
I
R508
220K
C513
0.01
R502
330K
R509
22K
L501
2 1
RST
GND
VDD
3
C502
0.1
C501
4V22
S2-2
(PROTECT)
HLGJ
C516
2.2
R513
100K
C503
0.01
C511
100P
R512
220
R510
10K
ijkm n pq r
MN OP S
R501
47K
CEABFG DJI
R506
100K
R505
100K
T
I
R507
220K
S2-1
(OPEN/CLOSE)
C510
0.47
R511
220K
R504
330K
W
X
Y
A
B
C
D
E
QR
U
V
Z
a
b
A
B
C
D
d
NC
C505
0.1
TP430
TP429
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
1.8V
2.2V
1.2V
1.4V
0V
2.1V
2.2V
2.2V
0.9V
1V
2.2V
1.8V
2.2V 2.2V
0V
0V
2.2V
0V
2.2V
0V 0V 0V
2.2V 2.2V
0.2V
0V 0V
2.2V
0V 0V
0V
0V
0V
0V
0V
0V
0V
1.8V
2.1V
2.2V
2.2V
0V
2.2V
2.2V
2.1V
2.1V
2.1V
2.1V
0.8V 2.3V 0V
0V
0V
0V
0V
0V
0V
0V
2.2V
0V
0V
0V
0V
2.2V 2.2V 2.2V 2.2V
(0V)
(0V)
(2.2V)
(2.2V)
(2.2V)
(2.2V)
(0V)
(0V)
(2.2V)
(2.2V)
(2.2V)
(0V)
(2.2V)
(0V) (0V) (0V)
2.2V
2.2V
2.2V 0V
0V
0V
0V
2.2V
PLAY
0V
2.2V
T 6.7ms.
1.5V
P-P
F=10MHz
0.9V
P-P
F=10MHz
:POSITIVE VOLTAGE LINE

IC101
MN66621ARG
ATRAC ENCODER/DECODER,
SERVO SIGNAL PROCESSOR
C140
0.01
R104
220
R120
12K
C120
0.1 C101
4V10
C102
0.1
L101
C104
0.1
C103
4V10
X101
(16.9344MHz)
R101
1M
C110
10P
C109
10P
D101
MA2YD2100L
R103
10
C105
4V10
IC102
C3ABMB000026
16M DRAM
1234589101112
13 14 15 16 17 20 21 22 23 24
7 6
18 19
Vcc
DQ0 DQ1
/WE
/ RAS
NC
A10
A0 A1 A2 A3
VccVss
A4 A5 A6 A7 A8 A9
/OE
/CAS
DQ2 DQ3
Vss
ABCDEFGHIJKLMNOPQR
R123
220
C122
0.22
C123
680P
R122 33K
R121
33K
C121
0.022
C107
2.5V220
C106
0.1
R111 47
R112 47
R110 47
C111
47P
JKLMNef gh inmjkprq
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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
75
74
73
72
53
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
52
51
100
TS0
APCD
RFSWPG
RFSWHL
SPDP
FODP
SPDM
FODM
CLV2
REFM
TRDM
TRDP
DVDD0
LDON
TVDM / STPO0
TVDP / STPO1
SBCK / STPO2
NCLDCK / STPI2
NREC
DRVSEL
DATA/ FG
BCK
LRCK
SDAR
SDAP
SWS
SCL
RX2 RX1
TX
DVDD1
DVss1
SGSYNC
MDISY
SCTSY
SSDR
SSDW
SELAD
MONI1 MONI2 MONI3
NRST
PWMVss
ADACR
SSCK
ADACL
AVss0
PEAK
BOTM
OSC
MON3T
VREF1
FF2
FF1
AVDD0
DD
CC
BB
AA
AVss1
REFMS
REFM1
EFMPLLF
EFMIREF
ADIP
AVDD1
MONI0
RAD11
RAD10
RAD9
RAD8
RAD7
RAD6
DVss2
RAD5
RAD4
RAD3
RAD2
RAD1
DVDD2
RAD0
RDT3
RDT2
RDT1
RDT0
NRAS
NCAS
NWE
TS2
DVss0
XO
XI
IVDD0
TS1
SUBC / STP0
BLKCK / STPI1
IVDD1
EFMFIL
PWMVDD
(FS384)MONI4
R130 2.2K
C130
4700P
N
e
d
b
h
V
U
Z
a
X
W
f
T
F
S
M
L
K
J
I
H
O
D
C
B
A
E
G
P
R
Q
g
A
B
CDE
FG
HIJKR
LM QPON
A
Y
i
TP412
TP411
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
G
DS
Q101
B1CDGD000001
SWITCHING
MAIN CIRCUIT
C112
0.1
0.4V
2.2V
2.2V
2.2V
2.1V
2.2V
0.4V
0V
0V
0V
0V
1.5V
2.2V
2.2V
2.2V
2.2V
0V
0V
0V
2.2V
1.2V
1.4V 0V
1.1V
1.1V
0V
1.5V
0.2V 0V 2.2V 0V
2.2V
2.2V 0V 0V 0V
2.2V 1.1V 1.1V 2.1V
1.2V
1.1V
0.8V
1.1V
1.1V
1.1V
2.2V
0.7V
0.6V
1.2V
1.1V
1.1V
1.1V
1.1V
1.6V
1.1V
1V
2.2V
0.8V
0.8V
1.1V 1.1V 1.1V
0.9V
0.8V 0.5V
0.5V 0.8V
1.5V 1.7V
2.2V
2.2V 2.2V 1.1V 0.9V 1.5V
1.8V
1.7V 1.1V 1.1V 2.2V
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)(0V)
(0V)
(0V)
(2.2V)
(0.8V)
(0.8V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(1.1V)
(0.6V) (0.6V)
(0.9V)
(2.1V)
(1.1V)
(0V)
(2.1V) (2.1V)
2.2V 0.9V 1.1V 1.7V 1.5V
0.8V
1.7V 0.8V
0.5V
2.2V
0.8V 0.9V
1.1V
1.1V
1.1V
0.8V
1.8V 2.2V 2.2V (0V)
(0.9V)
(1.1V) (1.1V)
(0V)
(1.1V)
(2.1V) (2.1V) (1.1V) (2.1V)
0.8V
P-P
F=16.9344MHz
1.4V
P-P
F=16.9344MHz
2.2V
P-P
F=16.9344MHz
PLAY
1kHz, 0dB
0.25V
P
- P
0.5V
(0.6V) (0.6V)
:POSITIVE VOLTAGE LINE
(2.2V)
(2.2V)
(2.2V)
1.1V
2.2V 2.2V
2.2V
2.2V
(0V)
1V
(0V)
:RECORDING SIGNAL "DIGITAL" LINE:PLAYBACK SIGNAL LINE

Q701
XP4601TX
POWER SUPPLY
Q702
DTC144TETL
SWITCHING
C725
4.7
R715 100K
R703
100K
R714
10K
IC701
C1BB00000609
MIC AMP
AMP2 Gv
91011121314 8
7654321
REG
AMP1 GND
V+
IC601
C0FBAJ000008
20bit A / D CONVERTER
C704
4V10
C727
4V10
C723 1000P
C724
1000P
C728
4V10
C722
0.1
C721
0.1
R706
1.8K
C726
4.7
R704
330K
R702
180K
R711
470
R712
100K
R713
100
J
C
A
C711
0.1
R710
4.7K
C612
1
C611
1
9101112
13141516
87654321
SDTO
BCLK
MCLK
LRCK
CDTI
CCLK
CSN
PDN
VD VA Vss VCOM RIN2 LIN2 RIN1 LIN1
C605
4V15
C714
1
R708
1.8K
C713
1
R707
22K
C603
4.7
C601
4.7
B
R705
47K
I
D
EGFHL KNM
C701
6.3V22
C702
0.1
R701
100
IC305
C0CBCAC00006
REGULATOR
JK702
MIC
(PLUG IN POWER)
3.5mm STEREO
600
JK701
OPT/LINE IN
22K
L710
3
4
2
1
L711
L712 1
2
4
5
3
7
8
6
R601
4.7
C305
1
Q703
2SB1462STX
SWITCHING
L722
L721
VD
ABCDE
43
VDDGND
CE VOUT
1 2
C720
0.1
C602
0.1
A
B
AB
C
C
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
C606
1
C607
1000P
C608
1000P
0V 0V 0V 0V 1.1V 2.2V 2.2V
0V1.1V1.4V1.1V0V0V0V0V (0.8V)(0.8V)(2.2V)(2.2V)(2.2V)
0V 0V 0V 0V 0V
3.5V3.4V0V0V0V0V0V
(0.3V) (0.6V) (0.6V)
(0.6V)(0.3V)
0V 3.4V
1.2V(3.5V)1.2V(3.5V)
0.7V
(2.9V)
0V2.3V
0V
2.3V 0.2V
2.3V
3.5V
2.3V2.2V
(2.1V)
(2.1V)
(2.2V)
:POSITIVE VOLTAGE LINE :RECORDING SIGNAL "DIGITAL" LINE :MIC SIGNAL LINE:RECORDING SIGNAL "ANALOG" LINE
2.3V

18 17 16 15 14 13
123456
19
20
21
22
23
24 7
8
9
10
11
12
BEEP OUT R
BEEP OUT L
IN R
IN L
Vcc1
MT TC
Vcc2 OUT R PWR GND OUT L DET AGC IN
VREF
LPF1
BST NF1
LPF2
BST NF2
BST OUT
VREF IN
GND
BEEP IN
BST SW
MT SW
PW SW
Q202
2SB1295-6-TB
SWITCHING(REMOTE)
IC201
TA2131FL
POWER AMP
Q203
B1ABDF000001
SWITCHING
(REMOTE)
E
F
G
H
R208
2.2M
C220
100P
R204
10K
C216
2.5V220
C215
2.5V220
C205
4V22
R209
10
C204
4V10
R207
3.9K
R206 10K
C213
1000P
C214
1000P
C202
1
C203
4.7
IC301
NJU7015RTE1
OPE AMP
R308
470K
R306
10K
R318
1M
C308
0.1
R301
330K
R309
390K
Q303
XP4601TX
SWITCHING
Q302
B1CFHD000005
DC IN DET.
Q304
B1CFNC000001
DC IN DET.
D
G
S
D301
MA2S111TX
Q301
B1ABDF000001
SWITCHING R302
100K
A
B
C
L201
L202
R312
3.3M
R317
0.1
R313
100K
R314
150K
R303
82K
S
D
GR316
100K
C309
0.1
R311
100K
C310
0.1
R310
33K
R205
100K
R203
27K
R202
470
C207
330P
C201
4.7
C211
1
C212
1
C208
4.7
R315
100K
L203
C206
0.1
R201
220
R210
220
D
A
Y
Q
W
R304
10K
R
F
U
T
e
f
E
XI
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
C223
0.01
5678
1 2 3 4
GND
Vcc
MAIN CIRCUIT
0.2V 1.3V 1.3V 0V
1.4V1V2.2V2.2V
0V
1.3V
1.3V
2.2V
0V
1.4V 0.6V 0.6V 0.6V
0.6V
0.6V
0.6V
0.6V
0.6V0V0V2.2V
1.2V
2.1V
0.6V
0.6V
0V
0V
0.2V
0V
2.1V
0V
0V
2.1V
1.6V
2.2V 2.2V
0.6V 0V
2.2V
:POSITIVE VOLTAGE LINE :PLAYBACK SIGNAL LINE

13
2
1
3
4
5
6
7
8
9
10
13
2
1
3
4
5
6
7
8
9
10
R807
33K
12 3 4 5 6 7
CP801CN701
CP802
IC302
C0DBAFZ00020
DC-DC CONVERTER
IC304
C0DBAGZ00006
DC-DC CONVERTER
D305
MA2Z74800L
C304
6.3V22
D304
MA2YD2100L
C303
4V100
R326
220
IC303
XC6367A151MR
DC-DC CONVERTER
S
G
D
D303
B0JCMB000001
S
G
D
1
2
4
5
3
6
2
3
1
LCD MODULE
(L5DCAEC00001)
Q311
2SD1979TX
POWER SUPPLY
Q305
B1CHMC000001
POWER SUPPLY
G
DS
C313
0.01
R324
470K
R320
470K
Q308
2SB1462STX
POWER SUPPLY
Q306
B1CFNC000001
SWITCHING
R321
390K
C306
0.1
R322
2.2M
R323
1M
Z301
Q307
B1CFNC000001
SWITCHING
JK301
DC IN
1.8V
C301
2.5V390
C803
0.01
C302
6.3V100
C
12 3 4 5 6 7
5
4
CE
GND
V OUT
LX
1
2
3
5
4
CE
V OUT EXT
VDD
GND
1
2
3
S
G
D
C317
4.7
G
DS
R307
470K
Q314
DTC144EETL
POWER SUPPLY
CONT.
Q313
B1CHHD000003
POWER SUPPLY
L302
C318
0.1
5
4
CE
V OUT EXT
VDD
GND
1
2
3
11
12 11 12
R803
68K
R802
56K
R801
1.2K
S804
(EDIT,MARK MODE)
S806
(HOLD)
C801
0.033
R808
51K
13 4 5 6
CP803
13 4 5 6
FLAT PAD
CAFED
G
F
E
D
C
B
A
G
C802 4700P
JK201
HEADPHONES
3.5mm STEREO
22
C316
10
D
C312
0.1
R305
100
L305
A
C
E
G
F
H
I
C
B
L301
L303
L1
i
J
h
A
H
g
D
I
C
B
B
E
d
P
O
G
N
M
L
S
b
Z
a
C806
0.01
2
2
B
S802
(REC ,LP MODE)
S803
( ,OPR OFF)
S801
( / ,CHARA)
A
TP137
TP443
TP440 TP439
TP421
C222 1
Q312
B1CHMC000001
POWER SUPPLY
SJ-MR220(EB,EG,GCS,GH) MAIN,OPERATION SCHEMATIC DIAGRAM
1 RECHARGEABLE
BATTERY 1.2V
1LR6( AA SIZE,UM-3 )
BATTERY 1.5V
BATTERY CASE
OPERATION CIRCUIT
0V
2.2V 2.2V
2.2V 2.2V
2.2V
2.2V
1.5V 1.5V
1.2V 1.2V
1.6V
0V 1.6V
(0V)
0.4V
1.4V
2.2V
2.2V
1.4V
0.4V
1.4V 1.4V
0.9V
1.2V
2.2V 1.4V
1.5V
2.2V
2.2V
0.2V
1.5V
1.4V
0.2V
1.4V
(3.5V) (3.5V)
(3.5V)
:POSITIVE VOLTAGE LINE :PLAYBACK SIGNAL LINE
2.3V
2.3V