Toshiba 20SLDT1 Schematic

FILE NO. 810-200716GR

SERVICE MANUAL

LCD TV/DVD COMBINATION

20SLDT1

The above model is classified as a green product (*1), as indicated by the underlined serial number.

This Service Manual describes replacement parts for the green product. When repairing this green

product, use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), see the next page.

DOCUMENT CREATED IN JAPAN, March, 2007 GREEN

DVD BLOCK DIAGRAM

DVD LOADER
SL265WR

OPU

SPINDLE/
STEPING/
SLED
MOTOR

E

DVD/CDPD

RF_A, B, C, D, E, F

DVD/CD, DVD_LD, CD_LD

TR+/-, F+/­SP+/-, SL+/-

LOAD+/-

MD/RFO

3.3V
MX29LV160BBTC-70G

Motor Drive

D001

BA5954

Motor Drive

D7

BA6287F

AA0~AA21
AD0~AD7
PWR#, REW#, PRD#

FLASH 16M

D008

V1P4/FMO/FOO
TRO/STBY/DMO

5V

TROPEN/TDO

5V

MPEG/MICON/DSP/RF_AMP

D2

MT1389DE/H-L

MA0~MA11

DQ0~DQ15

DBA0, DBA1, DQM0, DQM1

SDCLK, SDCKE, DCS#,

DRAS#, DCAS#, DWE#

3.3V, 1.8V

MC, MDD
SBCK, SLRCK
SACLK, ASDATA0

64M SDRAM

D009

HY57V641620ETP-H

STEREO DAC

D02

PCM1742E/2K

5V

SD3.3V

LCD BLOCK

DVD_MENU

DVD_TRIP

STABY_1

VIDEO

DVD C

DVD Y

DVD_IR

DVD POWER

ZERO

AUDIO L

AUDIO R

F-1

F-2

JP2
VGA

GDDCC

15

GVS

14

GHS

13

GDDCD

12

GND

10

+5V

9
8

GND
GND

7

GND

6

GND

5

VGA_BLUE

3

VGA_GREEN

2

VGA_RED

1

HD Y
HD PB
HD PR

DVD Y
DVD PB
DVD PR

EEP_ROM
U16 24C02

+5V

2

5

SWITCH

11

U17

3

6

ADG794

10

1

4

7

9

SCL

6

SCALER/LVDS/VIDEO BLOCK DIAGRAM

SDA
5

124
125

SCALER

SW

Y
PB
PR

14
17
19

31

12

9

7

U4

MST718BE

120

121

95

94

93

92

89

88

87
86

85
84

Y1

14.31818MHz

DGA3/LVA0M

DGA2/LVA0P

DGA1/LVA1M

DGA0/LVA1P

DBA5/LVA2M

DBA4/LVA2P

DBA3/LVACKM
DBA2/LVACKP

DBA1/LVA3M
DBA0/LVA3P

LCD PANEL

F-3

32

TV TUNER CVBS

30

AV1 VIDEO

28

AV2 VIDEO

24

22

S-VIDEO Y

S-VIDEO C

F-4

AV1_AUDIO_IN_R

AV1_AUDIO_IN_L

AV2_AUDIO_IN_R

AV2_AUDIO_IN_L

YPBPR_AUDIO_IN_R

YPBPR_AUDIO_IN_L

DVD_A_R

DVD_A_L

TV TUNER

AUDIO BLOCK DIAGRAM

5V

4

11

5

14

2

15

1

12

AUDIO
SW IC

U26

BU4052

TV L/R

13

3

MAX_L

MAX_R

13

14

JP9
EARPHONE

15

16

PHONE R

PHONE L

4

12

AUDIO AMP
U9 TDA7266SA

1

ROUT

15

LOUT

AUDIO IC

U11

BD3888

AMP_ROUT

25

26

AMP_LOUT

PHONE R

7

6

2

AUDIO AMP
U6 NJM4580

PHONE L

1

SPEAKER

SPEAKER

F-5

PC-AUDIO IN

L

L

R

R

18

17

F-6

POWER BLOCK DIAGRAM

POWER SUPPLY

12V

LV1

U7
IRF7304

12V_SW

LV3

U9
TDA7266

U5
MC7809

U604
MP1583DN

U16
IS24C02B

VCC_DVD

U11
BD3888

9VA

PWM33 5V6_DCDC

U603
LD29080DT50

L1

5VA

U605
TPS60400

U2
IRF7304

TVF1

U6
NJM4580

U26
74LV4052

U17
ADG794

-5VB

VCC_PANEL

U26
74LV4052

U6
NJM4580

U8
AMC1117-2.5

U3
MP1583DN

F-7 F-8

L2

U1
LD29080DT50

5VSTB

U34
BR24L16F

U4
MST718BU-LF

U30
LD29080DT33

+2.5V

+3.3V

U4
MST718BU-LF

U4
MST718BU-LF

U13
PS25LV040

PRINTED CIRCUIT BOARDS

MAIN (TOP SIDE)

MAIN (BOTTOM SIDE)

G-1

G-2