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Model
DVD-LS837EEK
Pages
71
Size
5.89 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / PORTABLE DVD/CD PLAYER
File
dvd-ls837eek.pdf
Date
PREV: Panasonic DVD-LS80P / DVD-LS80PC / DVD-LS82P / DVD-LS82PC / DVD-LS850P Service Manual

Panasonic DVD-LS837EEK Service Manual ▷ View online

37
Ref No.
MODE
PLAY
STOP
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MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
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MODE
PLAY
STOP
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MODE
PLAY
STOP
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MODE
PLAY
STOP
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MODE
PLAY
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MODE
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MODE
PLAY
STOP
Ref No.
MODE
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MODE
PLAY
STOP
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MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
Q1004
Q1402
Q1202
Q1401
Q1403
Q1451
Q1452
Q1602
Q1603
Q1604
Q3201
Q5201
Q5221
Q8802
Q8805
QR1001
QR1451
QR1603
QR4003
QR4022
QR8001
QR8808
QR8812
QR8813
QR8814
QR8815
QR8002
QR8801
QR8802
QR8803
QR3201
QR1452
QR1601
QR1602
QR1002
QR1201
QR1401
QR4007
QR4009
QR4014
QR4023
QR5222
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
B
C
E
B
C
E
1
2
3
5
6
C
9.2
9.2
7.1
11.3
9.2
9.2
3.3
3.3
1
3.3
3.3
3.3
0.1
0.1
11.5
11.3
0.1
0.1
9.2
9.2
7.1
11.3
9.2
9.2
3.3
3.3
1.1
3.3
3.3
3.3
0
0
11.5
11.3
0.1
0.1
1
2
3
4
5
6
1
2
3
4
5
6
B
C
E
1
2
3
4
5
6
1
2
3
4
5
6
B
C
E
0
0.4
9.1
8.9
0.3
0.3
11.6
11.6
0
11.6
11.6
11.6
11.6
11.6
10.9
0.1
0.1
9.1
8.9
0.1
0.1
11.6
11.6
0
11.6
11.6
11.6
11.6
11.6
10.9
B
C
E
B
E
B
C
E
1
2
3
4
5
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
3.3
11
9.9
0.1
8.8
0
0
0
0
5
0
0
5
3.4
10.9
7.6
0.1
8.8
C
9.2
9.2
0
0
0
0
5
0
0
5
6
0
0
B
C
E
B
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
0
0
-0.6
3.2
0
0
-2.2
3.3
C
0
0
E
0
0
Q5202
B
2.2
3.3
C
0.9
0
E
1.6
0
Q5211
B
0
0
C
3.2
3.3
E
3.2
3.3
Q5215
B
1.9
0.6
C
2.9
3.3
E
2.2
3.3
1
2
3
4
5
6
B
C
E
1
2
3
4
5
0
0
0
0
3.3
0
2.5
5
2.6
5.7
1.9
1.9
-3
1.9
0
0
0
0
3.3
0
2.5
5
2.6
5.7
1.9
1.9
-3
1.9
6
1.9
1.9
B
C
E
B
C
E
B
C
E
B
C
E
2.9
0
0
2.9
0
0.4
0
0
3.3
0
0
3.3
2.9
0
0
2.9
0
0.4
0
0
3.3
0
0
3.3
1
2
3
4
5
6
B
C
E
B
C
E
B
C
E
5.1
0.2
0.1
3.2
0
11.6
-2.2
0.2
1.3
0
0
5
0
5.1
0.2
0.1
3.2
0
11.6
-2
0.1
0.1
0.2
1.3
0
0
5
0
0
0
-2.6 3.3
3.3
5.6
0
5
0
0
-3
0
-2.9
0
0
2.4
2.5
0.5
QR4901
QR4905
QR4904
QR4903
QR4902
B
C
E
0
0
0
0
0
0
B
C
E
0
0
0
0
0
0
B
C
E
0
3.3
3.3
0
3.3
3.3
B
C
E
0
3.3
3.3
0
3.3
3.3
B
C
E
3.3
0
0
3.3
0
0
5.6
0
0
0
0.7
0
0.7
4
0
0
0
0
E
0
0
B
5.6
5.6
0
-2.4
0
0
-2.4
0
0
-2.4
0
0
-2.4
0
0
0
3.3
0
0.7
0
0
0.7
0
0
0.7
0
0
0.7
0
0
0
3.3
-3.1
-3.2
3.1
3.1
3.2
0
0
0
3.2
0
0
3.2
3.3
3.3
0
-3.1
-3.2
3.1
3.1
3.2
0
0
0
3.2
0
0
3.2
3.3
3.3
0
4.9
5
0
4.9
5
0
0
0
3.3
5.8
5.9
0
0
0
3.2
4.9
5
0
4.9
5
0
0
0
3.3
5.8
5.9
0
0
0
3.2
Ref No.
MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
0
0
-2.4
5
0
0
-2.7
B
C
E
B
5
5
5
5
C
E
QR3202
QR4001
QR4002
5
5
B
0
0
0
0
C
E
2.5
-3.1
B
2.5
0.6
3.3
3.3
C
E
2.5
-2.9
B
2.5
0.6
3.3
3.3
C
E
Q1002
Q1003
Q1001
1
2
3
4
5
6
1
2
3
4
5
6
B
C
E
10.7
10.7
5.3
5.3
8.9
11.3
5.3
5.3
3.3
3.3
9.7
11.3
3.3
3.3
1.2
11.3
5.3
5.3
8.9
11.3
5.3
5.3
3.3
3.3
10
11.3
3.3
3.3
1.2
11.3
IC8803
IC8803
IC8804
IC8805
81
82
83
84
85
86
87
88
90
91
92
93
95
96
97
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
0
0
0.2
0
0.8
0.8
0.2
3.3
3.3
3.2
0
0
0
0
1.4
3.3
89
0
0
3.3
0.2
2.4
0
0
0.2
0
0.8
0.8
0.2
3.3
3.3
3.2
0
0
0
0
1.4
3.3
0
3.3
0.2
2.4
0
0
2.4
2.4
0
2.4
5
2.4
0.2
2.3
1.5
1.6
2.8
2.4
0.6
8
5.8
5.8
94
5
98
99
100
0
0
2.4
0
0
0
2.4
2.4
0
2.4
5
2.4
0.2
2.3
1.5
1.6
2.8
2.4
0.6
5
0
0
2.4
0.2
0.9
3.3
0
0.3
0.8
3.3
3.3
1.9
1.6
1.6
-3.1
0
0
5.8
0.2
0.9
3.3
0
0
0.7
3.3
3.3
1.9
1.6
1.6
-3.1
0
0
5.8
Ref No.
MODE
PLAY
STOP
Ref No.
MODE
PLAY
STOP
IC8803
IC8803
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
1.2
0.9
0
5
2.7
1.2
5
5
2.7
1.2
1.2
5
5
0
0.3
0.3
0
0.2
0
5
0
3.2
1.2
0.8
1
1
0
5
2.7
1.2
2.7
0
0.3
0.3
0
0.2
0
5
0
3.2
0
1
0.3
0.8
0.2
0
1.5
3.3
3.3
5
0
1.7
3.3
0.2
3.3
0.2
3.2
0
3.3
0
1
0.3
0.8
0.2
0
0
0
1.5
3.3
3.3
5
0
1.7
3.3
0.2
3.3
0.2
3.2
0
3.3
38
14 Block Diagram
NOTE
Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of measuring instrument and its measuring condition and product itself.
14.1. Overall Block Diagram
IC3008
ROM
FLASH
32Mbit
8Kbit
IC6001
IC2601
MECHANISM UNIT
TRAVERSE
MAIN P.C.B.
OPERATION P.C.B.
COIL
TRACKING
COIL
FOCUS
MPU
OPERATION
KEY
LED
MOTOR
TRAVERSE
DRIVE
MOTOR
MOTOR
SPINDLE
UNIT
PICK-UP
AMP
IC3201
LCD
IC3009
 VIDEO IN/OUT
SIGNAL
PROCESSOR
VIDEO
IC8803
IC8804
SERIAL
FLASH ROM
512Kbit
IC3001
SERVO CONTROLLER/
AV DECODER/
SYSTEM CONTROLLER
DV5.0
OPTICAL DISC CONTROLLER/
SDRAM
128Mbit
IC3002
EEPROM
SELECTOR
SPEAKER
IC4008
IC4004
SELECTOR
AMP
HEADPHONE
AUDIO IN/OUT
 RFOUT
AUDIO POWER AMP
DC VOLUME CONTROL
IC4009, IC4010
IC4005
FMT
TRANSMITTER
IC4901
OVERALL BLOCK DIAGRAM
KEY
REMOTE
CONTROL
DVD-LS837EE
39
14.2. Power Supply Block Diagram
POWER SUPPLY BLOCK DIAGRAM
D6003
IC1001
(REG CONTROLLER)
IC1002
(REG CONTROLLER)
12 VCC
OCP1-
QR1451
IC1452
(REG OPR+3.3V)
5
VIN
3
VOUT
1
ON/OFF
4
EXT
REG
Q1003
REG
Q1002
REG
Q1001
PW_D +1.2V
PW_PWR+9V
PW_UNREG
PW_AUD +3.3V
PW_D +3.3V
PW_LCD +3.3V
PW_M +5.5V
IC1005
REG
PW_SWA +5V
PW_OPR +3.3V
Q1603
Q1602
CHARGE CTL
QR1601
INV
QR1602
QR1603
CURRENT
    ADJ
Q1604
IC6007
RESET
PW_LCD +5V
D1401
D1402
D1601
D1455
D1452
D1453
SWITCHING
Q1451
SWITCHING
QR1452
REG
Q1403
JK1401
JK1402
1
FP6202
1
FP6801
6
1
IP1401
IP1403
DC IN
BAT+
JK1401
DC IN
JK1402
BATTERY
ADP ON
IC6001
OPERATION P.C.B.
(OPERATION MPU)
4
5
KEY2
KEY2
KEY1
KEY1
KEY3
KEY3
6
REMOIRQ
28
FP6202
2
FP6801
5
FP6202
D6004
PWR-SW
DVDON-H
PON-H
PWRON-H
3
FP6801
4
NRST
44
PLAY-SW
S6004
R.SKIP
S6003
F.SKIP
S6002
BRIGHT
S6001
SIZE
STAND-BY
D6002
CHARGE
S6809
LEFT
S6808
ENTER
S6807
RIGHT
S6818
AVSELECT
S6801
PLAY
S6816
VOL(-)
S6817
VOL(+)
S6815
MENU
S6813
UP
S6814
TOP MENU
S6804
RETURN
S6005
OPEN/CLOSE
S6803
STOP
S6812
S6802
PAUSE
S6806
DISPLAY
43
OPEN-H
16
OSC1
17
OSC2
X6001
22
DVD2ON-H
DVD2ON-H
23
STBY-LED
70
45
73
67
CHG-LED
75
CHG-ICTL
77
CHGON-H
76
CHG-ICTL2
2
PWRNG-L
OPRON-H
ADPON-L
PWRNG-L
CHG-V
CHG-V
OPRON-H
ADAPON-L
L
69
12
DVDON-H
68
PON-H
72
PWRON-H
9
VREF+
18
VDD5
14
IC1601
(BATTERY CHARGE CTL)
14
HBAT
11
VSENSE
16
13
OUT
LBAT
VDIF
1
SD
REF
2
3
12
VCC
4
CADJ
S6805
DOWN
 FM-TM
13 OCP1+
OCP2+
8
OCP2-
7
15
STB
DT2 2
19
DT1
OUT1 11
OUT2 10
12 VCC
OCP3-
14
13 OCP3+
OCP4+
8
OCP4-
7
15
STB
DT4 2
19
DT3
OUT3 11
OUT4 10
PCTL-H
71
PCTL-H
DVD3ON-H
DVD3ON-H
63
REG
Q1202
REG
POWER
NG DET
POWER
Q1004
PW_CHG+9V
QR1001
QR1002
REG
Q1401
REG
Q1402
QR1401
SWITCHING
IC1101
REG
QR1201
SWITCHING
NG DET
PW_AV+6V
D1005
D1001
D6001
FMT
24
FMTM-LED
POWER
CTL
Q1452
IC1103
REG
INV
INV
VSENSE CTL
IR6801
REMOCON
FP6202
4
FP6801
3
FP6202
6
FP6801
1
DVD-LS837EE
40
14.3. Servo Block Diagram
M+5.5V
RF SIGNAL
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
IN2
IN1
CNF1
TRVDRV
FODRV
TRDRV
67
42
45
43
(MOTOR DRIVE)
IC2601
RFINN
RFINP
SPDRV
DRV1
FG
FG
P13
VHALF
VHALF
LASER DIODE
Q5202,Q5215
LD DRIVE
VREFH
LPCO1
LPC1
LPCO2
LPC2
LPCO2
LPC2
VIN4
VIN3
VIN2
PWM1
PWM0
DRV0
VIN1
VIN8
VIN7
VIN6
VIN5
RFINN
RFINP
VREFH
LPCO1
LPC1
VIN4
VIN3
VIN2
VIN1
VIN8
VIN7
VIN6
VIN5
OPTICAL PICK UP UNIT
LASER DIODE
DVDLD+
CDLD+
Q5201,Q5211
LD DRIVE
113
(DV5.0)
IC3001
114
115
116
120
119
117
118
109
104
103
106
105
110
127
126
SERVO BLOCK DIAGRAM
W
A1
V
A2
U
A3
INSP
VREF
71
47
29
25
66
95
96
48
36
+
-
LOGIC
Driver
Pre
MOS
POWER
VO2R
VO2F
VO1R
VO1F
10
9
7
6
FO-
FO+
TR-
TR+
OPTICAL PICK UP UNIT
ACTUATOR
COIL
FOCUS
COIL
TRACKING
+
-
LOGIC
Driver
Pre
MOS
POWER
amp
NF
amp
NF
41
CNF2
40
IN4
VO4R
PVCC1
VO4F
32
31
+
-
LOGIC
Driver
Pre
MOS
POWER
amp
NF
CNF4
TRAVERSE MOTOR
DC2
DC1
38
+
-
+
-
DETECTER
BEMP
LOGIC
Driver
Pre
MOS
POWER
26
SPINDLE MOTOR UNIT
COM
21
OSC
OSC
COUT
19
CCOM
RNF1
RNF2
20
23
27
LIMIT
24
28
STBY/BMSW
4
5
DRV-MUTE
CTL1
CTL2
P4 49
M+5.5V
11
PVCC3
M+5.5V
33
PGND1
8
PGND3
30
DVD-L
60
Q5221
6.4Vp-p(5usec/div)
IC2601-6,7,9,10
f3
f2
f4
f1
F2
F1
C
B
D
A
E2
E1
c
b
d
a
e3
e2
e4
e1
AMP
HEAD
DVD
CD
DVD-LS837EE
FG
IC2601-48
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