DOWNLOAD Panasonic DVD-LS90EB / DVD-LS90EE / DVD-LS90GCS Service Manual ↓ Size: 4.46 MB | Pages: 70 in PDF or view online for FREE

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.

DVD-LS90EB/EE/GCS
OVERALL BLOCK DIAGRAM

IC6301

ROM

FLASH

16Mbit

8Kbit

IC6001

IC2601

IC2651

MECHANISM UNIT

TRAVERSE

MAIN P.C.B.

COIL

TRACKING

COIL

FOCUS

MPU

OPERATION

KEY

CONTROL

REMOTE

LED

DRIVE

MOTOR

TRAVERSE

MOTOR

TRAVERSE

DRIVE

MOTOR

SPINDLE

MOTOR

SPINDLE

UNIT

PICK-UP

OPT OUT

SPEAKER

IC4003

HEADPHONE

AUDIO OUT

LCD

IC3051

VIDEO OUT

IC8001

IC3201

IC4001

DRIVE

VIDEO

SIGNAL
PROCESSOR

VIDEO

CONVERTER

D/A

AUDIO

AUDIO POWER AMP
DC VOLUME CONTROL

IC3001

SERVO CONTROLLER/

AV DECODER/

SYSTEM CONTROLLER

DV2.1

OPTICAL DISC CONTROLLER/

RF SIGNAL PROCESSOR/

SDRAM

64Mbit

IC6351

EEP ROM

37

DVD-LS90EB/EE/GCS
POWER SUPPLY BLOCK DIAGRAM

D6009

D6008

IC1001

(REG CONTROLLER)

3

8

32

PVCC1

PVCC2

VCC

QR1411

4

OUT2

IC1411

(REG OPR+5V)

5 VIN

1

VOUT

3 VPF

4

VOR

SWITCHING

Q1001

OUT3 7

SWITCHING

Q1002

IC1004

D +1.2V

D1017

D1016

QR1007

QR1008

D +3.3V
DD +3.3V

M +5.5V

Q1003

SWITCHING

9

OUT4

A +5V

D +5V

IC1003

REG

SWA +5V

OPR +5V

47

STB23

IC1101

REG

REG

POWER
NG DET

POWER
NG DET

IR6801

REMOCON

45

STB5

46

STB4

12 OUT5

5

8

7

6

T1101

4

3

2

1

LCD +5V

LCD +17V

LCD +7.5V

LCD -13V

PWR +9V

Q1101

D1401

D1411

D1404

D1405

D1413

D1414

SWITCHING

Q1412

SWITCHING

QR1413

POWER
CTL

Q1402

CTL

IC1401

CTL

QR1402

JK1401

JK1421

1

FP6001

5

FP6801

2

1

IP1401

IP1421

DC IN

BAT+

JK1401

DC IN

JK1421

BATTERY

ADP ON

IC6001

OPERATION P.C.B.

(OPERATION MPU)

1 KEY

2 STICK

FP6001

2

FP6801

5

21 REMOCON

FP6001

4

FP6801

3

FP6001

6

FP6801

1

FP6001

1

FP6801

6

15 XRST

24 PLAY

S6810

MENU

S6811

UP

S6812

TOPMENU

S6020

R.SKIP

S6019

F.SKIP

S6018

AV SELECT

STAND-BY LED

S6809

LEFT

S6808

ENTER

S6807

RIGHT

S6815

AUDIO

S6816

PICTURE

S6817

MONITOR

S6818

PLAY

S6814

VOL(-)

S6813

VOL(+)

S6804

RETURN

S6003

D6007

OPEN/CLOSE

S6805

DOWN

S6803

STOP

S6802

PAUSE

S6806

DISPLAY

25

OPEN-H

9

OSC2

10

OSC1

X6001

26 STBY-LED

CHARGE LED

27 CHARGE-LED

42 PWRON

TH6040

3

PICK-T

61 PWRNG

28 P52(PWROK      )

48 OPR ON

17 ADAP ON

H

H

H

L

L

L

46 DVD ON H

45 LCD ON H

47 P ON H

7 VREF+
8 VDD

29 VDD2
30 VDD3

38

-

+

-

+

-

+

+

-

-

+

-

+

-

+

-

+

MUTE

CH3

BIAS1

MUTE

CH1,2

SHIFT

LEVEL

-

+

+

-

+

-

+

-

SHIFT

LEVEL

-

+

-

+

+

-

SHIFT

LEVEL

-

+

+

-

TRAVERSE MOTOR

0.4Vp-p(0.5usec./div.)

IC2601-11,12,13,14

5.0Vp-p(5msec./div.)

IC2651-24

RF SIGNAL

MOTOR DRIVE SIGNAL

TRACKING ERROR SIGNAL

FOCUS ERROR SIGNAL

VIN3

VIN2

VIN1

ACTMUT-L

TRVDRV

FODRV

TRDRV

VO2-

VO2+

VO1-

VO1+

VO3-

VO3+

DC2

DC1

61

75

2

9

27

11

12

13

14

18

17

23

3

(TRAVERSE MOTOR DRIVE)

IC2601

FO-

FO+

TR-

TR+

OPTICAL PICK UP UNIT

ACTUATOR

COIL

FOCUS

COIL

TRACKING

RFINN

RFINP

SS

SPDRV

P6

DRV1

P10

VHALF

FG

TRV-SW+

LASER DIODE

Q5202,Q5215

LD DRIVE

VREF

LPCO1

LPC1

LPCO2

LPC2

VIN4

VIN3

VIN2

PWM1

PWM0

DRV0

P7

VIN1

VIN8

VIN7

VIN6

VIN5

OPTICAL PICK UP UNIT

PHOTO DETECTOR

B3

B4

B2

B1

A3

A2

A4

A1

LASER DIODE

AMP

HEAD

Q5201,Q5211

LD DRIVE

134

(DV2.1)

IC3001

(SPINDLE MOTOR DRIVE)

SPINDLE MOTOR UNIT

IC2651

133

132

131

138

137

136

135

127

124

123

126

125

110

111

128

148

147

DVD-LS90EB/EE/GCS
SERVO BLOCK DIAGRAM

2

DRIVER

A3

A2

A1

H1+

H1-

H2+

H2-

H3+

PS

EC

ECR

FG

H3-

GAIN
CONTROL

HALL AMP

TORQUE
SENS AMP

CURRENT
SENSE AMP

D

R

CK

Q

Q

4

7

9

HALL1

HALL2

HALL3

TRAVERSE SW

10

11

22

23

RNF

M+5.5V

28

65

76

72

58

21

24

12

13

14

PS

VCC

TSD

TL

39

+

+

JK4001

D4001

6

7

2

1

8

7

9

1

5

4

2

3

VOLUME

BIAS

R-IN

L-IN

HPSENSE

DC VOL

S-DOWN

BIAS

CONTROL

QR4012(1/2)

MUTE

QR4006

MUTE
CTRL

QR4007

D+3.3V

MUTE

QR4003

MUTE
CTRL

QR4011
(1/2)

IC4002(1/2)

IC4002(1/2)

MUTE

QR4011
(1/2)

MUTE

QR4008

MUTE

QR4005(1/2)

QR4009(1/2)

QR4005(1/2)

Q4002

JACK-IN
DET.

MODE
CONTROL

QR4012(1/2)

MUTE

QR4013(1/2)

MUTE

QR4013(1/2)

MUTE

AUDIO OUT

5.5Vp-p(5usec./div.)

IC3001-171

4.0Vp-p(0.5msec./div.)

IC4001-14,15

:AUDIO SIGNAL

OPT OUT

JK4002

1

5

4

3

2

HEAD

PHONE

JK4003

1

5

4

3

2

28

26

R-OUT-

L-OUT-

R-OUT+

L-OUT+

15

17

24

25

19

10

12

21

POWER
MANAGEMENT

2

7

18

HEAD

PHONE

5

15

16

55

39

14

+

-

+

-

+

-

+

-

+

-

+

-

LPF

BUFFER

QR4009(1/2)

BUFFER

QR4004(1/2)

IC6002

BUFFER

QR4004(1/2)

BUFFER

D/A

ZERR/
ZEROA

MANAGER

CLOCK

SYSTEM

MODULATOR

CONTROLLER

LPF

SIGNAL

LEVEL CTRL

SIGNAL

LEVEL CTRL

VOUTR

VOUTL

D/A

DATA

RCK

LRCK

SCK

PORT

SERIAL

AUDIO

8

7

6

(DV2.1)

(AUDIO DAC)

IC4001

(AUDIO POWER AMP/DC VOLUME CONTROL)

IC4003

171

170

169

HPSENSE-H

18

DCVOL

40

HPMUT-H

23

HPJOPEN-H

16

P10
(POWER MUT)

LRCK

163

DACCK
(DACSCK)

177

IECOUT

P13
(AMUT)

SRCK

IC3001

(OPERATION MPU)

IC6001

ADOUT3
(DMIX OUT)

SPEAKER
L

SPEAKER
R

-

-

+

+

4

1

2

DVD-LS90EB/EE/GCS
AUDIO BLOCK DIAGRAM

40