Toshiba 32L153xDx Service Manual Download

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R2002

22R

R2001

R2003

22R

R2004

R2005

22R

R2008

680R

4k7

R2010

16V

C712

100n

680R

R2009

U40

TPS2553-1

GND

OUT

ILIM

FAULT

TP200

50V

100p

C713

ACT_ANT

C714
10u
16V

F189

TP122

TP121

TP120

TP119

CN18

LBS

MXL601_SCL

MXL601_SDA

10k

R2101

5135_IF_P

5135_IF_N

C1116

10V

100n

10V

100n

C107

560R

R2069

5V_VCC

F186

60R

AZ099-04S

U45

IO1

GND

IO2

IO3

VDD

IO4

TPS2553-1

U44

GND

OUT

ILIM

FAULT

S311

R2129

33R

S2_TS_CLK

5V_VCC

USB1_VCC

09-04-2014_15:22

DEMOD

<YOUR NAME HERE>

17mb82s-r4

A X M

SCH NAME :

DRAWN BY :

T. SHT:

5V_STBY

S17

330R

F96

3V3_AVCC

R474

220R

R74

10k

R2234

4k7

5135_DV10

Q5
BC848B

10k

R73

10k

R72

BC848B

R71

10k

27p

50V

560R

R2070

F60

220R

R473

Q40

BC858B

10k

R70

Q39

BC858B

R472

220R

100n

C118

10V

USB1_VCC

R2118

10k

TP209

513x_pin39

513x_pin82

S327

513x_pin21

S328

5135_DV33

U15

MT5136

128

127

126

125

124

123

122

121

120

119

118

117

116

115

114

113

112

111

110

109

108

107

106

105

104

103

102

101

100

A15

A24

A12

A25

VS2_

PCMCIA_RESET

WAIT_

GPIO1

DVDD33_6

REG_

GPIO2

DVDD11_7

BVD2

BVD1

D10

CD2_

CI_INT

EFUSE

DVDD33_7

D13

D14

D15

CE1_

DVDD33_3

DVDD11_4

A10

VS1_

OE_

IORD_

A11

IOWR_

A17

DVDD33_4

DVDD11_5

A18

A13

A19

A14

A20

DVDD33_5

DVDD11_6

WE_

A21

READY

A22

A16

A23

D12

D11

CD1_

CHIP_CTRL

S2_TS_DATA7

S2_TS_DATA6

S2_TS_DATA5

S2_TS_DATA4

S2_TS_DATA3

S2_TS_DATA2

S2_TS_DATA1

DVDD33_2

DVDD11_3

S2_TS_DATA0

S2_TS_VAL

S2_TS_SYNC

S2_TS_CLK

RF_AGC

IF_AGC

TUNER_CLK

TUNER_DATA

DVDD11_2

DVDD33_1

AVDD33_IFPGA

AVDD12_DEMOD

IFPGA_INP

IFPGA_INN

AVSS12_DEMOD

EXT_CLKSEL

AVDD33_XTAL

XTALO

AVSS33_XTAL

XTALI

AVSS33_DEMOD

AVDD33_DEMOD

AVSS33_RSSI

ADIN0

AVDD33_RSSI

DVDD11_1

MT5135_RST_B

DEMOD_TS_CLK

DEMOD_TS_VAL

DEMOD_TS_SYNC

DEMOD_TS_DATA0

DVDD33

DVDD11

CI_TS_CLK

CI_TS_VAL

CI_TS_SYNC

CI_TS_DATA0

PVR_TS_CLK

PVR_TS_VAL

PVR_TS_SYNC

PVR_TS_DATA0

PVR_TS_DATA1

SPI_CLK

SPI_DATA

SPI_CLE

S326

5135_DV10

27MHz

1V2_513x

S329

513x_pin39

C179

27p

513x_pin82

5135_DV33

S330

S331

5V_VCC

S332

513x_pin109

S333

513x_pin112

S2_TS_SYNC

513x_pin109

513x_pin112

S2_TS_ VAL

S2_TS_DATA_0

R2199

33R

CI_PWR_EN

220R

R471

TP107

CN6

10V

C120
100n

100n

C121

10V

C122
100n
10V

100n

C123

10V

47k

R2259

TP110

TP210

R2260

47k

3V3_VCC

5135_DV33

12V_VCC

100n
C1434

10V

33k

R2257

33k

R2258

Q226

BC848B

BSH103

Q227

C5V6

IF_AGC

5135_DV10

16V

47n

C358

R2243

47R

R2244

12k

22k

R2245

10V

C1395
10u

10u

C1396

10V

C1397
10u

3V3_VCC

10V

10u

C1398

R2241

4k7

33R

R2130

3V3_VCC

AVDD33_1

S335

APL5910

U65

POK

VIN

VCNTL

VOUT

GND

4k7

R2242

S336

R2246

100n

C1399

C180

27p

C1163

10u

6V3

C108
100n
10V

PVR_TS_DATA0

CN28

5V_VCC

10k

R208

R2201

47R

CLK_5135

DEMOD_RST

PVR_TS_DATA0

S313

R209

10k

10R

R643

R644

10R

USB1_DP

USB1_DM

3V3_VCC

4k7

R426

USB1_VCC

5V_VCC

4k7

R428

R2140

10k

USB1_VCC

10u
16V

C623

5135_AV12

330R

F11

5V_VCC

1V2_AVCC

C12

50V

10p

USB_ENABLE

VCC_PCMCIA

1V2_MT5820

10u
6V3

C582

AVDD33_4

5135_DV33

R26

33R

R49

47R

10p

50V

C488

R737

F82

C577

10u

6V3

10V

100n

C119

F83

F85

LED2

LED1

IR_IN

F84

F86

C578
10u
6V3

S2_TS_DATA_3

10u

C579

6V3

10u
6V3

C580

10V

100n

C1207

S2_TS_DATA_2

S2_TS_DATA_1

S2_TS_DATA_0

Q222
BC848B

10k

R2096

S2_TS_DATA_6

S2_TS_DATA_5

C124

10V

100n

C125

10V

100n

C126

10V

100n

C127

10V

AVDD33_1

AVDD33_2

AVDD33_3

AVDD33_4

AVDD33_1

AVDD33_2

AVDD33_3

5135_DV33

5135_DV10

6V3

C583
10u

C128

10V

100n

R758

4k7

5135_DV33

C129

10V

100n

R759

4k7

5135_DV33

47R

R51

S325

S2_TS_DATA_4

S2_TS_DATA_7

S2_TS_ VAL

S2_TS_SYNC

S2_TS_CLK

TP198

TP199

R2094

33R

R50

47R

10p

C489

50V

10p
50V

C490

R201

10k

R202

10k

R203

100n
10V

C130

10V

100n

C131

R204

10k

5135_DV33

R196

10k

R197

10k

R198

100n

C132

10V

5135_AV12

5135_DV10

5135_AV12

5135_DV10

VCC_PCMCIA

1V2_AVCC

VCC_PCMCIA

5135_AV12

10V

C133
100n

10p

C491

50V

C492
10p

10V

100n

C134

10k

R199

10k

R200

10k

R205

10k

R206

VCC_PCMCIA

R207

10k

3V3_AVCC

F81

3V3_AVCC

F87

M_CI_OUTDATA5

M_CI_INVALID

CI_IREQ#

M_CI_INDATA3

M_CI_INDATA4

CI_WE#

M_CI_INDATA2

CI_A14

M_CI_INDATA1

CI_A13

M_CI_INDATA0

CI_A8

M_CI_INSYNC

CI_A9

CI_IOWR#

CI_A11

CI_IORD#

CI_OE#

CI_A10

M_CI_OUTDATA7

CI_D7

M_CI_OUTDATA6

CI_D6

M_CI_INDATA5

M_CI_INDATA6

CI_A12

M_CI_INDATA7

CI_A7

M_CI_OUTCLK

CI_A6

CI_RESET

CI_A5

CI_WAIT#

CI_A4

CI_A3

CI_REG#

CI_A2

M_CI_OUTVALID

CI_A1

M_CI_OUTSYNC

CI_A0

M_CI_OUTDATA0

CI_D0

M_CI_OUTDATA1

M_CI_INCLK

M_CI_OUTDATA4

CI_D4

M_CI_OUTDATA3

CI_D3

CI_D5

DEMOD_TSVAL

DEMOD_TSSYNC

DEMOD_TSDATA0

DEMOD_TSCLK

RF_AGC_5135

CI_D2

CI_D1

CI_INT

M_CI_OUTDATA2

CI_INVALID

CI_INSYNC

CI_INDATA0

CI_INDATA1

CI_INDATA2

CI_INDATA3

CI_INDATA4

CI_INDATA5

CI_INDATA6

CI_INDATA7

CI_INCLK

CI_OUTCLK

CI_OUTVALID

CI_OUTSYNC

CI_OUTDATA0

CI_OUTDATA1

CI_OUTDATA2

CI_OUTDATA3

CI_OUTDATA4

CI_OUTDATA5

CI_OUTDATA6

CI_OUTDATA7

CI_VS1#

CI_CE1#

XTALI

CI_CE2#

CI_CD2#

CI_CD1#

DEMOD_RST

SPI_CLK

SPI_DATA

SPI_CLE

USB1_VCC

LBS

XTALO

CI_PWR_EN

LED&VFD

sat bypass option

ANTENNA INPUT

ACTIVE ANTENNA

CI INTERFACE

FC OPT.

TI OPT.

FC pin5 NC, pin6 current limit, R from VCC to pin6 NC

TI pin5 current limit, pin4 fault, R from pin4 to GND NC

5135

close to mt5135

TI OPT.

0: Single End

close to pcmcia

1: Differential

5136

5135

CI girisi ust-altta konacak

5136-->NC

5135

5136

5135

DVB-T2

Summary of Contents for 32L153xDx

Page 1: ...SERVICE MANUAL LCD Color Television 32W153xDx 32L153xDx 40L153xDx 32W154xDx 32L154xDx 40L154xDx System Information FILE NO 050 2015003 ...

Page 2: ...CONTENTS 1 IMPORTANT NOTICE 2 GREEN PRODUCT PROCUREMENT 3 LEAD FREE SOLDER 4 SAFETY INSTRUCTION 5 FIRMWARE UPDATING 6 HOTEL MODE HOTEL CLONE 7 BLOCK DIAGRAM 8 SCHEMATIC DIAGRAM 9 TROUBLESHOOTING 1 ...

Page 3: ...sts if any incurred in connection with or as a result of such modification or alteration THE INFORMATION OR DATA HEREIN SHALL BE PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Toshiba shall not be liable for any damages losses expenses or costs if any incurred in connection with or as a result of use of any...

Page 4: ...ement of parts is not only confined to manufacture The same green parts used in manufacture must also be used as replacement parts LEAD FREE SOLDER This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead free solder must be used in the servicing and repair of this product WARNING This product ...

Page 5: ...jury to children 5 Depending on the model use an isolation transformer or wear suitable gloves when servicing with the power on and disconnect the power plug to avoid electrical shock when replacing parts In some cases alternating current is also impressed in the chassis so electrical shock is possible if the chassis is contacted with the power on 6 Always use the replacement parts specified for t...

Page 6: ...10 Touch current check After completing the work measure touch current to prevent an electric shock Plug the AC cord directly into the AC outlet Do NOT use an isolation transformer for this check Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such as a water pipe Annex D normative Measuring network for TOUCH CURRENTS Resistance ...

Page 7: ...not exceed the following value The part or contact of a TERMINAL is not HAZARDOUS LIVE if a The open circuit voltage should not exceed 35 V peak a c or 60 V d c or if a is not met b The measurement of the TOUCH CURRENT shall be carried out in accordance with IEC 60990 with the measuring network described in Annex D of this standard The TOUCH CURRENT expressed as voltages and does not exceed the fo...

Page 8: ...g and holding OK key from Toshiba remote controller and at the same time turn power to ON by mechanical SW and hold OK pressed until the standby led blinks very rapidly 4 SW update starts automatically when the led starts blinking 5 SW update is completed after led blink is done After core update user profile settings and panel files do not change After Core update bootloader mboot version will be...

Page 9: ...HOTEL MODE HOTEL CLONE HOTEL TV MENU To enter hotel menu please open main menu by pressing MENU M button When you code following password 7935 hidden hotel TV menu appears Figure 1 Hotel TV Menu ...

Page 10: ...go on normal operation If It is ON RCU will not function in anymenu including nomenu except this menu To turn this option OFF later hotel tv menu shortcut MENU M 7 9 3 5 can be used to pop up this menu RCU will function in Stand By mode regardless of the state of this option Startup Position Specifies the starting channel when TV is switched ON May take one of following values AUTO o TV is opened ...

Page 11: ...e Fixed Volume Value Fixed Volume Value Sets the fixed value the volume can have If Fixed Volume Limit is ON volume is set with the value here Headphone Direct Volume Enables the remote controller volume buttons to change the headphone volume directly When this feauters is active volume buttons changes only headphone value and to change the tv main sound it can be control from sound osd dialog onl...

Page 12: ...he updated welcome image to USB in directory welcome_image as hotel_wel png Copy NVRAM data service list preferences etc to USB device On Phonix platform all nvram data is stored in 8x32KB Flash files named as nvblock_ bin When Copy to USB is called those files are copied from TV to USB Then they can be used for various purposes testing on another TV or testing debugging on observatory etc Note th...

Page 13: ...n USB ports will be disabled and power will be cut on USB ports To be able to use this feature USBPowerOff option has to be set as enabled from profile hwprofile USBPorts USBPowerOff OR HOTEL MODE should be enabled Fixed Pic Mode If OFF is selected TV will go on normal operation If It is ON Main menu Picture quick menu mode and quick menu picture zoom will be inaccessible Digital Tuner If ON is se...

Page 14: ...ust not exceed 150KB 153600 Bytes for 8 2MB TVs Welcome image file sizes must not exceed 1000 KB 1024000 Bytes for 8 4MB TVs If 1000 KB limit is wanted to be active then profile option EnhancedLogo should be enabled or Satellite should be enabled Copy service list to USB This button is only visible at the hotel configuration menu if it was enabled from the profile option When this button is presse...

Page 15: ...ormal operation and it is going to switch between sources automatically If It is OFF Pin8 ignored and the automatic source switching would be enabled This functions DISABLED ENABLED value does not effect the profile Pin8Standby option which can be disabled or enabled via profile manager Attention It has no connection by the profile Pin8Standby option whose function is automatic standby waking up A...

Page 16: ...General Block Diagram ...

Page 17: ...36 R2246 1k 100n C1399 C180 27p 2 1 C1163 10u 6V3 C108 100n 10V PVR_TS_DATA0 CN28 4 3 2 1 5V_VCC 10k R208 R2201 47R CLK_5135 DEMOD_RST PVR_TS_DATA0 S313 R209 10k 10R R643 2 1 R644 10R 2 1 USB1_DP USB1_DM 3V3_VCC 4k7 R426 2 1 USB1_VCC 5V_VCC 4k7 R428 2 1 R2140 10k USB1_VCC 10u 16V C623 5135_AV12 330R F11 2 1 1k F2 5V_VCC 1V2_AVCC C12 50V 10p USB_ENABLE VCC_PCMCIA 1V2_MT5820 10u 6V3 C582 AVDD33_4 51...

Page 18: ...5 106 107 108 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 17...

Page 19: ...0V C1170 10u R468 2k2 C1178 16V 10u 12V_VCC 10u C1172 10V TP73 TP74 24V_VCC_AU DIMMING TP228 1 BACKLIGHT_ON OFF 12V_STBY DIMMING TP229 1 BACKLIGHT_ON OFF C1190 33p S2 5V_STBY S316 TP230 1 S303 S300 5V_CTRL 5V_VCC 10k R23 2 1 BC848B Q6 R24 10k 2 1 Q13 BC848B 10k R37 2 1 10k R42 2 1 TPS_CNTRL TPS_CNTRL 10u C3 10V S27 S28 S29 10u C1348 10V C1344 3n3 50V R2222 3R3 C1343 220n 25V F205 1k R319 470R R315...

Page 20: ...TE VSS CN INL_P INL_N OUTL UVP GND1 VDD CP R93 10k 2 1 R692 100k 2 1 Q8 BC848B 3 2 1 R80 10k 2 1 16V C620 100u 2 1 12V_VCC S21 2 1 R691 100k 2 1 16V C146 100n VDD_AUDIO S22 2 1 10k R1983 2 1 4k7 R824 AMP_MUTE 3V3_AMP BC858B Q41 3 2 1 A_OUT2B A_OUT2A A_OUT1B A_OUT1A 4k7 R65 100n C152 10V 2 1 R2218 18R AMP_EN 220R F23 VDD_AUDIO PT2333 U23 A1 A2 A3 B1 B2 B3 C1 C2 C3 OUTP SDB INN GNDB VDD1 VDDA OUTN G...

Page 21: ...2 SC_FB AZ5125 01J D170 2 1 1k F72 UART TX 33p 50V C456 C78 100n 10V 2 1 R352 100R 2 1 2 1 R353 100R C15V D17 2 1 F73 1k SC_CVBS IN_pin20 SCART_AUD_R_IN SCART_AUD_L_IN SCART_AUD_L_IN SCART_AUD_R_IN COM_SC S86 50V 33p C457 50V 33p C458 L1 1u8 CVBS0_OUT TP33 R496 33k SC_CVBS_OUT 3V3_VCC MAIN_R 16V 10n C90 10k R168 2 1 C91 10n 16V CDA4C16GTH D33 8 7 6 5 4 3 2 1 CDA4C16GTH D34 8 7 6 5 4 3 2 1 R1149 4k...

Page 22: ...C6 BA0 BA1 BA2 CK_0 CK_1 CKE CS RAS CAS WE RESET ZQ VDDQ_9 VDDQ_8 VDDQ_7 VDDQ_6 VDDQ_5 VDDQ_4 VDDQ_3 VDDQ_2 VDDQ_1 VDD_9 VDD_8 VDD_7 VDD_6 VDD_5 VDD_4 VDD_3 VDD_2 VDD_1 VREF_DQ VREF_CA DQL0 DQL1 DQL2 DQL3 DQL4 DQL5 DQL6 DQL7 DQU0 DQU1 DQU2 DQU3 DQU4 DQU5 DQU6 DQU7 DQSL_0 DQSL_1 DQSU_1 DQSU_0 DML DMU ODT VSSQ_9 VSSQ_8 VSSQ_7 VSSQ_6 VSSQ_5 VSSQ_4 VSSQ_3 VSSQ_2 VSSQ_1 VSS_12 VSS_11 VSS_10 VSS_9 VSS_8...

Page 23: ... 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 TX_1_1_P TX_1_2_N TX_1_2_P TX_1_CLK_N TX_1_CLK_P TX_1_3_N TX_1_3_P TX_1_4_N TX_1_4_P TX_2_0_N TX_2_0_P TX_2_1_N TX_2_1_P 90R F26 1 2 3 4 FR1 FR2 TX_2_2_N TX_2_2_P TX_2_CLK_N TX_2_CLK_P TX_2_3_N TX_2_3_P TX_2_4_N TX_2_4_P F27 90R 1 2 3 4 FR1 FR2 90R F28 1 2 3 4 FR1 FR2 F29 90R 1 2 3 4 FR1 FR2 5820_TX_B_0_N 5820_TX_B_4_P 5820_TX_B_4_N 5...

Page 24: ...7 10k 10V C150 100n C316 47p 50V 50V 22p C1161 47p 50V C1186 3V3_TUNER R59 10k 50V C1162 22p MXL601_SCL MXL601_SDA R2128 10k 6V3 10u C1164 6V3 1u C1194 03 04 2014_10 27 TUNER 9 YOUR NAME HERE 17mb82s r4 8 7 6 5 4 3 2 1 A B C D E F AX M 1 2 3 4 5 6 7 8 A B C D E F A3 SCH NAME DRAWN BY T SHT C317 50V 47p MXL601_SDA MXL601_SCL L13 3n9 S318 C323 1n 50V F188 1k RF_IN_P C324 50V 1n 1k F33 S319 RF_IN_N 1...

Page 25: ... 20 21 22 23 24 36 35 34 33 32 31 30 29 28 27 26 25 48 47 46 45 44 43 42 41 40 39 38 37 VSEL OLF LNB_EN ADDR_SEL1 IT_LOCK VCC5 GNDD5 TEST3 TEST2 VDDA3 VDDA4 VDDA5 M_DATA6 M_DATA7 VCC3 GNDD3 M_VALID M_SYNC M_CLK M_ERR GNDD4 VCC4 DISEQC DISEQC_IN M_DATA5 M_DATA4 M_DATA3 M_DATA2 M_DATA1 M_DATA0 TEST1 VDDD VCC2 GNDD2 SCL SDA RESETN VCC1 GNDD1 VDDA2 CLK_OUT XTAL_IN XTAL_OUT VDDA1 CAP TEST0 LNA_IN LNA_I...

Page 26: ...9 12V_AC S42 24V_DC Q8 BC848B BC848B Q9 Q10 BC848B ST_BY U202 5 6 7 8 4 3 2 1 DET FB CS GND HV NC VDD GATE FAN6300 L4 1u SBR10U150 D39 R79 33k 200k R81 56k R83 24V_AC 12V_AC UF5402 D13 C313 1u 50V LF3 4 3 2 1 R281 10k UF5402 D11 UF5402 D12 SB5100 D23 SB5100 D24 SB5100 D25 400V 10k R280 R304 1k R306 1k V_5 V_1 V_2 10R R289 35V 560u C70 CN3 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 V_6 PIN_...

Page 27: ... R111 330k S54 R113 6k8 100k R3 VCC_LED LED4 S55 LED2 LED1 C78 10V 2u2 OVP_LED CS_LED C79 2u2 10V GATE_LED 50V 10u C83 C84 10u 50V C80 10V 2u2 R112 330k BL_ON OFF 25V 1u C51 50V 47u C22 VCC_LED V_SW 12VCC LED1_S LED2_S S47 S48 S49 S50 S51 S52 S53 LED3 LED2 LED4 LED3 LED2 LED1 LED4 LED1 LED3 LED2 LED1_S LED2_S LED4_S LED3_S LED4_S LED3_S LED2_S LED1_S V_LED V_LED CN6 1 2 3 4 5 6 7 R104 100R 50V 1n ...

Page 28: ...6 8 7 6 5 4 3 2 1 A B C D E F AX M 1 2 3 4 5 6 7 8 A B C D E F A3 SCH NAME DRAWN BY T SHT C6 100n 50V 50V 100n C4 R3 220R R1 100R C2 1u 50V 50V 1u C3 C5 50V 100n IR1 1 2 3 VS GND OUT R2 22R CN1 5 4 3 2 1 50V 1u C1 VBC30034 D1 xx335 LED BMS TOSHIBA ...

Page 29: ...oblem If TV is working led is normal and there is no picture and backlight on the panel Possible couses Backlight pin dimming pin backlight supply stby on off pin Backlight pin should be high in open position If it is low please check Q30 and panel cables ...

Page 30: ...h or square wave in open position If it is low please check S16 for Mstar side and panel or power cables connectors Backlight power supply should be in panel specs Please check CN4 for MB82 related connectors for power supply cards ...

Page 31: ... R2090 2 CI Module Problem Problem CI is not working when CI module inserted Possible couses Supply suply control pin detect pins mechanical positions of pins CI supply shoul be 5V when CI module inserted If it is not 5V please check CI_POWER_CTRL this pin should be low ...

Page 32: ...4 10 Please check mechanical positions of CI module Detect ports should be low If it is not low please check CI connector pins CI module pins and 3V3_VCC on MB82 ...

Page 33: ...icates a short on Vcc voltages Protect pin should be logic high while normal operation When there is a short circuit protect pin will be logic low If you detect logic low on protect pin unplug the TV set and control voltage points with a multimeter to find the shorted voltage to ground ...

Page 34: ...6 10 4 IR Problem Problem LED or IR not working Check LED card supply on MB82 chasis ...

Page 35: ...ypad Touchpad Problems Problem Keypad or Touchpad is not working Check keypad supply and KEYBOARD pin on MB82 6 USB Problems Problem USB is not working or no USB Detection Check USB Supply It should be nearly 5V ...

Page 36: ...puts Check supply voltages of VDD_AUDIO 5V_VCC or 12V_VCC with a voltage meter There may be a problem in headphone connector or headphone detect circuit when headphone is connected speakers are automatically muted Measure voltage at HP_DETECT pin it should be 3 3v ...

Page 37: ...ndby On Off Problem Problem Device cannot boot TV hangs in standby mode There may be a problem about power supply Check 12V_VCC 5V_VCC and 3V3_VCC with a voltage meter Also there may be a problem about SW Try to update TV with latest SW Additionally it is goood to check SW printouts via hyper terminal or Teraterm These printouts may give a clue about the problem ...

Page 38: ...10 10 10 No Signal Problem Problem No signal in TV mode Check tuner supply voltage 3V3_TUN Check tuner options are correctly set in Service menu Check AGC voltage at IF_AGC pin of tuner ...

Page 39: ...REV 00 Feb 18 2015 TOSHIBA LIFESTYLE PRODUCTS SERVICES CORPORATION 2 9 Suehiro Cho Ome Shi Tokyo 198 8710 Japan ...

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Toshiba 32L153xDx, Service Manual

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