DOWNLOAD Panasonic DVD-LS70EB / DVD-LS70EE / DVD-LS70EG / DVD-LS92EB / DVD-LS92EE / DVD-LS92EG Service Manual ↓ Size: 4.43 MB | Pages: 68 in PDF or view online for FREE

37

M+5.5V

RF SIGNAL

MOTOR DRIVE SIGNAL

TRACKING ERROR SIGNAL

FOCUS ERROR SIGNAL

IN2

IN1

CNF1

TRVDRV

FODRV

TRDRV

93

42

45

43

(MOTOR DRIVE)

IC2601

RFINN

RFINP

SPDRV

FIELD/PWMCO[2]/GPIO[51]

APIWM[4]/ALRCLK/DUPRD1/IGPIO[24]

FG

LASER DIODE

Q5281,Q5282

LD DRIVE

VC

LD_DVD

LD_CD

MD_DVD

MD_CD

DVD_LD

CD_LD

DVD_MD

CD_MD

HSYNC/PWMCO[3]/GPIO[52]

RF_A

A

B

C

D

RF_B

RF_C

RF_D

RFINN

RFINP

OPTICAL PICK UP UNIT

LASER DIODE

DVD

CD

Q5271,Q5272

LD DRIVE

(DV5.0)

IC3001

SERVO BLOCK DIAGRAM

W

A1

V

A2

U

A3

INSP

VREF

40

47

29

25

92

67

66

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

1

L

T

C

E

T

U

M

-

V

R

D

CTL2

APIWM[5]/ABCLK/DUPTD1/IGPIO[23] 39

M+5.5V

11

PVCC3

M+5.5V

33

PGND1

8

PGND3

30

6.4Vp-p(5usec/div)

IC2601-6,7,9,10

f3

f2

f4

f1

C

B

D

A

c

b

d

a

e3

e2

e4

e1

AMP

HEAD

DVD

CD

FG

IC2601-48

69

70

72

73

VC

80

88

86

87

85

89

PWMCO[0]/GPIO[49]

91

VCLKx2/PWMCO[1]/GPIO[50]

DVD-LS92EB/EE/EG

DVD-LS70EB/EE/EG

38

AUDIO BLOCK DIAGRAM

+

-

+

-

9

11

LOUT+

Volume
Control
32 steps

LOUT-

+

-

+

-

16

14

ROUT+

ROUT-

      Power
Management

 Mode
Control

 Depop
Circuitry

 BIAS

Power
Clamp

VOLMAX

BYPASS

MUTE

SE/BTL

GND

SHUTDOWN

VDD

PW_LCD+5V

RIN-

LIN-

VOLUME

MUTE

QR6005,QR6006

SPEAKER
R

SPEAKER

Q4210

L

-

+

-

+

JK4011

1

5

7

4

3

2

HEAD
PHONE

JK4012

1

5

7

4

3

2

HEAD
PHONE

40

HPJIN-L

7

10

6

3

2

VOL_PWM

(OPERATION MPU)

IC6001

IC3001

FMTM-LED

26

AVJIN-L

41

MUTE

QR4201,QR4202

AMPMUTE-H

32

QR4200

KARAPON-H

15

58

1

13

IC4005

+

-

+

-

1

2

3

5

6

7

8

OPCOM5V

43

APWM_L-

42

APWM_R-

60

DAC3

JK4001

7

2

1

3

4

5

AV IN/OUT

31

LOUTMUTE-h

MUTE

QR4001,QR4002

(AUDIO POWER AMP/DC VOLUME CONTROL)

IC4008

MUTE CTL

QR4009

MUTE CTL

(DV5.0)

AUDIO MAIN SIGNAL

DVD-LS92EB/EE/EG

DVD-LS70EB/EE/EG

39

LCD PANEL

DRIVER

GATE

DRIVER

SOURCE

61

Q7101

VIDEO DRIVE

VOD_R

Y_R_V

IC3001

VIDEO MAIN SIGNAL

58

Q7201

VIDEO DRIVE

VOD_G

CVBS_G_Y

63

97

Q7301

VIDEO DRIVE

IC7500
(SW AMP)

A+

B-

VCC

VOD_B

C_B_U

CVBS_C

DAC1

DAC4

DAC2

(DV5)

TFT_VCOM

Gen_9

3

7

8

6

VCOM

+15V[VGH]

JK4001

60

DAC3

AV IN/OUT

PW_LCD+5V

Gen_5/GPIO[0]

TFT_STH

TFT_OEH

TFT_STV

TFT_OEV

TFT_CKV

Gen_6

99

Gen_7

98

Gen_8

VIDEO BLOCK DIAGRAM

102

Gen_4/VID7 103

101

DVD-LS92EB/EE/EG

DVD-LS70EB/EE/EG

40

This schematic diagram may be modified at any time with the development of new technology.
Important safety notice:

Components identified by   mark have special characteristics important for safety.
Furthermore, special parts which have purpose of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resis-
tors), etc. are used. When replacing any of components, be sure to use only manufacture's specified parts shown in the parts
list.

There are special components used in this equipment which are important for safety.
These parts are marked by  (!)  in the schematic diagrams. It is essential that these critical parts should be replaced with man-
ufacturer’s specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of
manufacturer.

IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.