Toshiba 15DV703R Service Manual Download Page 90

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Speaker No Sound (Test signal:

0.5Vrms @1KHz sine waveform)

Audio problem

No Audio issue

Yes

Is the TV volume

set to “Mute”?

Yes

Increase the volume level by

pressing the VOL + button on the

remote control or

on the TV.

Please make sure the signal cable is

connected and has output. Remove the

headphone.

Note: Speaker will be muted when

headphone is connected.

Check IC19 power

pin6,7,12,13=12Vdc

Yes

Check IC19

audio output

Yes

Check IC19

output signal

Yes

Check net “MUTE” and “HP” circuit

Check equipment output

Check U1

IC19 fails

Summary of Contents for 15DV703R

Page 1: ...FILE No 810 201090GR ...

Page 2: ......

Page 3: ...R ...

Page 4: ......

Page 5: ...ment 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 2 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 6: ...12 Service Mode List 13 Hotel Mode Function 14 4 System Disassembly 15 Disassembly Tools 15 Disassembly Reminders 15 Disassembly Procedures 16 15DV703R 16 19DV703R 19DV704R 21 22DV703R 22DV704R 28 26DV703R 33 32CV100U 39 5 Exploded Diagram 45 15DV703R 45 19DV703R 19DV704R 47 22DV703R 22DV704R 49 26DV703R 51 32DV703R 53 6 Packing Diagrams 55 15DV703R 55 19DV703R 19DV704R 56 22DV703R 22DV704R 57 26D...

Page 7: ...4 7 Block Diagrams 60 8 Printed Circuit Board 64 9 Schematic Diagrams 68 10 Troubleshooting 80 11 Firmware 84 ...

Page 8: ...ventilation may be hindered The ventilation slots should never be blocked by placing the product on a bed sofa rug or other similar surface This product should not be placed in built installation unless proper ventilation is provided Do not install this display near a motor or transformer where strong magnetism is generated Images on the display will become distorted and the color irregular When c...

Page 9: ...or sharp impact may cause severe damage to thin glass plastic surface materials and internal components 4 If necessary clean the LCD TV with a slightly damp cloth using clean water Disconnect the LCD TV from the power source before cleaning Do not use ammonia based cleaning products 5 In the event that the powered LCD TV rapidly heats or emits unusual smells or noises immediately disconnect the un...

Page 10: ...cm 8 cm Audio frequency response DVD 4 Hz 22 kHz CD 4 Hz 20 kHz Video Audio Terminals Component Y Pb Pr audio L R Composite Video audio L R HDMI 1 HDMI 2 Type A HDCP compliant Suggested scan rate 480i 480p 720p 1080i 1080p Digital audio output Optical type PC IN 15 Pin D sub Analog RGB Headphone 3 5 mm stereo mini jack HDMI1 PC AUDIO IN VGA and DVI audio input Speaker output 3W x 2 Power source AC...

Page 11: ...4 Hz 20 kHz Video Audio Terminals Component Y Pb Pr audio L R Composite Video audio L R HDMI 1 HDMI 2 Type A HDCP compliant Suggested scan rate 480i 480p 720p 1080i 1080p Digital audio output Optical type PC IN 15 Pin D sub Analog RGB Headphone 3 5 mm stereo mini jack HDMI1 PC AUDIO IN VGA and DVI audio input Speaker output 3W x 2 Power source AC 220 240V 50 Hz Power consumption Operation 34 W Sta...

Page 12: ...4 Hz 20 kHz Video Audio Terminals Component Y Pb Pr audio L R Composite Video audio L R HDMI 1 HDMI 2 Type A HDCP compliant Suggested scan rate 480i 480p 720p 1080i 1080p Digital audio output Optical type PC IN 15 Pin D sub Analog RGB Headphone 3 5 mm stereo mini jack HDMI1 PC AUDIO IN VGA and DVI audio input Speaker output 3W x 2 Power source AC 220 240V 50 Hz Power consumption Operation 55 W Sta...

Page 13: ...20 kHz Video Audio Terminals Component Y Pb Pr audio L R Composite Video audio L R HDMI 1 HDMI 2 Type A HDCP compliant Suggested scan rate 480i 480p 720p 1080i 1080p Digital audio output Optical type PC IN 15 Pin D sub Analog RGB Headphone 3 5 mm stereo mini jack HDMI1 PC AUDIO IN VGA and DVI audio input Speaker output 5W x 2 Power source AC 220 240V 50 Hz Power consumption Operation 75 W Standby ...

Page 14: ...0 kHz Video Audio Terminals Component Y Pb Pr audio L R Composite Video audio L R HDMI 1 HDMI 2 Type A HDCP compliant Suggested scan rate 480i 480p 720p 1080i 1080p Digital audio output Optical type PC IN 15 Pin D sub Analog RGB Headphone 3 5 mm stereo mini jack HDMI1 PC AUDIO IN VGA and DVI audio input Speaker output 10W x 2 Power source AC 220 240V 50 Hz Power consumption Operation 109 W Standby...

Page 15: ...eletext 40 BF 53 12 AUDIO SELECT 44 BB 53 13 VOL 40 BF 1A VOL 40 BF 1E 14 CH RTN ZOOM 45 BA 40 15 Teletext On Off 45 BA 79 16 ENTER CH LIST 40 BF 3D 17 P S 40 BF 3E W 44 BB 51 X 44 BB 4D P T 40 BF 3F 18 PLAY X 44 BB 15 19 MENU SETUP 40 BF 0E 20 RETURN 44 BB 5D 21 EXIT CANCEL 44 BB EF 22 STOP 44 BB 14 23 SKIP 45 BA 23 24 REV 45 BA 19 25 SKIP 45 BA 24 26 FF 45 BA 13 27 SLOW 45 BA 0E 28 SLOW 45 BA 0D...

Page 16: ...2 sec Display the POWER ON total hours Main board version and system firmware 5 TV DVD VOL 9 2 sec Display the Adjustment MENU 6 DVD no disc STOP 1 2 sec Check the DVD module firmware version 7 DVD no disc STOP 7 2 sec Release the PARENTAL LOCK 8 DVD STOP Remote key SETUP SUBTITLE 3 AUDIO SELECT 0 0 sec TRAY LOCK The disc cannot be taken out 9 TV DVD VOL 3 2 sec Enter hotel mode 10 TV VOL 2 2 sec ...

Page 17: ...e value is based on the Maximum Volume setting Ex If the Maximum Volume is set to 30 the Fixed Volume range is 0 to 30 or off 4 All the settings mean hotel menu settings and user menu settings Picture Sound Channel Setup including ATV channel list Setting items Setting value Initial value Function Maximum Volume 0 50 50 To set the maximum volume value Panel Button Respond No Respond Respond To ena...

Page 18: ...g the internal components Follow the sequence indicated in the illustrative figures when removing the screws securing the components The screws for the different components vary in size During the disassembly process group the screws with their corresponding components to avoid mismatches when putting back the components After removing the adhesive tapes paste them back near their original locatio...

Page 19: ...e with the rear cover facing up Make sure the edge of the front bezel is hanging over the edge of the surface 2 Remove the screws holding the TV to its stand and then remove the stand 3 Remove the nine screws securing the rear panel cover 4 Open and remove the left rear panel door ...

Page 20: ...17 5 Disconnect the inverter cables from the power board 6 Remove the tape and release the LVDS cable from the panel 7 Detach the panel from the front cover ...

Page 21: ...ard left and power board right 9 Remove the four supports on the main board 10 Remove the two screws securing the IR board and then disconnect the IR cable from the IR board 11 Detach the right and left speakers and then disconnect the speaker cables ...

Page 22: ...d then remove the power board 13 Remove the two screws securing the key board and disconnect the control cable from the key board and then release the key board from the back cover 14 Remove the four screws securing the DVD module 15 Disconnect the cables from the DVD module and main board ...

Page 23: ...20 16 Pinch the hook to release the AC cable and then push it out 17 Pull out the AC cable from the back cover of the TV 1 1 2 ...

Page 24: ...th the rear cover facing up Make sure the edge of the front bezel is hanging over the edge of the surface 2 Remove the screws holding the TV to its stand and then remove the stand 3 Remove the screws securing the rear panel cover 4 Open and remove the left rear panel door ...

Page 25: ...22 5 Disconnect the inverter and panel power cable from the power board 6 Remove the tape and release the LVDS cable from the panel 7 Detach the back cover ...

Page 26: ...23 8 Remove the panel from the front cover 9 Remove the screws securing the power board right and main board left 10 Remove the two springs and one support from the power board ...

Page 27: ...lease the lower latch and then the upper latch 12 Disconnect the power and AC cables from the power board and then remove the power board 13 Remove the three supports securing the main board 14 Remove the six springs on the main board ...

Page 28: ...ect the control cable from the main board 16 Remove the one screw securing the IR board 17 Disconnect the IR cable and remove the IR board 18 Detach the left and right speakers and then disconnect the speaker cables ...

Page 29: ...VD module 20 Disconnect the cables from the DVD module and main board 21 Remove the two screws securing the control board and then release the control board 22 Remove the control cable and then separate the control board from its plastic bracket ...

Page 30: ...ch the hook to release the AC cable and then push it out 24 Pull out the AC cable from the back cover of the TV Important Take note of the spring orientation when reassembling the TV Main board Power board 1 1 2 ...

Page 31: ... the rear cover facing up Make sure the edge of the front bezel is hanging over the edge of the surface 2 Remove the two screws holding the TV to its stand and then remove the stand 3 Remove the screws securing the rear panel cover 4 Open and remove the left rear panel door ...

Page 32: ...29 5 Disconnect the inverter cables from the power board 6 Remove the tape and release the LVDS cable from the panel 7 Detach the panel from the front cover ...

Page 33: ...d left and power board right 9 Remove the four supports on the main board 10 Remove the one screw securing the IR board and then disconnect the IR cable from the IR board 11 Detach the right and left speakers and then disconnect the speaker cables ...

Page 34: ...le from the power board and then remove the power board 13 Disconnect the control cable from the main board and then release the main board from back cover 14 Remove the four screws securing the DVD module 15 Disconnect the cables from the DVD module and main board ...

Page 35: ...ch the hook to release the AC cable and then push it out 17 Pull out the AC cable from the back cover of the TV Important Take note of the spring orientation when reassembling the TV Main board Power board 1 1 2 ...

Page 36: ... the rear cover facing up Make sure the edge of the front bezel is hanging over the edge of the surface 2 Remove the screws holding the TV to its stand and then remove the stand 3 Remove the screws securing the back cover 4 Open and remove the left rear panel door ...

Page 37: ...34 5 Disconnect the inverter cables from the power board 6 Remove the tape and release the LVDS cable from the panel 7 Remove the eight screws securing the panel ...

Page 38: ...5 8 Detach the panel from the front cover 9 Remove the screws securing the control board detach the control board and then release the control cable 10 Separate the control board from its plastic bracket ...

Page 39: ...ble from the IR board 12 Remove the three screws on the main board left and remove the four screws and one support on the power board right 13 Remove the seven springs and four supports on the main board 14 Detach the right and left speakers and then disconnect the speaker cables ...

Page 40: ...and power cable from the power board and then remove the power board 16 Remove the four screws securing the DVD module 17 Disconnect all the cables from the DVD module and main board 18 Pinch the hook to release the AC cable and then push it out 1 1 2 ...

Page 41: ...38 19 Pull out the AC cable from the back cover of the TV Important Take note of the spring orientation when reassembling the TV Main board Power board ...

Page 42: ...ar cover facing up Make sure the edge of the front bezel is hanging over the edge of the surface 2 Remove the screws holding the TV to its stand and then remove the stand 3 Remove the fourteen screws securing the rear panel cover 4 Open and remove the left rear panel door ...

Page 43: ...40 5 Disconnect the inverter cable from the power board 6 Remove the tape and release the LVDS cable from the panel 7 Detach the panel from the front cover ...

Page 44: ...ng the control board detach the control board and then release the control cable 9 Separate the control board from its plastic bracket 10 Remove the one screw securing the IR board and then disconnect the IR cable from the IR board ...

Page 45: ...rd right and remove the eight springs on them 12 Remove the four supports on the main board 13 Detach the right and left speakers and then disconnect the speaker cables 14 Turn the power board over disconnect the AC and power cable from the power board and then remove the power board ...

Page 46: ...ur screws securing the DVD module 16 Disconnect all the cables from the DVD module and main board 17 Pinch the hook to release the AC cable and then push it out 18 Pull out the AC cable from the back cover of the TV 1 1 2 ...

Page 47: ...44 Important Take note of the spring orientation when reassembling the TV Main board Power board ...

Page 48: ... ˈ ˉ ˆ ˊ ˇ ˆ ˈ ˋ ˊ ˈ ˉ ˌ ˇ 15DV703R ˆ ˉ ˇ 5 Expladed Diagram 45 ...

Page 49: ...2 001 COVER ASSY BACK GRU G1510 16 75019668 G8CD00000210DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSS 17 75019664 60 77A15 002 STAND ASSY 18 75019667 91 71Y10 001G PC BOARD ASSY MAIN GRU2 15 19 22 19 75019661 56 04050 201 PC BOARD ASSY POWER 50W DPS 50UP 1A REV 00 G 20 75019403 86 1B326 100 SCREW M4X10L M PAN PM SP B 21 75018210 86 CA214 8R0 SCREW T3X0 5 8L BLACK ZN 2LEAD 86 CA214 8R0 22 75018194 86 ...

Page 50: ...47 19DV703R ˌ ˇ ˆ ˋ ˋ ˉ ˆ ˌ ˊ ˊ ˈ ˆ ˊ ˉ ˈ ˉ ˇ ˈ ...

Page 51: ...05 002 COVER ASSY BACK 16 AJ000385 75019678 60 72K07 001 BEZEL ASSY FRONT 17 AJ000338 75019668 G8CD00000210 DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSSIA 18 AJ000288 75019626 60 71X06 001 STAND ASSY 19 AJ000333 75019667 91 71Y10 001G PC BOARD ASSY MAIN GRU2 15 19 22 20 AJ000372 75019676 56 04050 G51 PC BOARD ASSY POWER 50W FSP050 2PI06A PP 21 AJ000030 75019403 86 1B326 100 SCREW M4X10L M PAN PM SP ...

Page 52: ...4 19DV704R ˆ ˇ ˆ ˆˇ ˊ ˋ ˋ ˌ ˉ ˆ ˉ ˆ ˌ ˊ ˋ ˊ ˇ ˈ ˈ ˌ ...

Page 53: ...17 75019668 G8CD00000210DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSS 18 75020079 60 71X29 001 STAND ASSY BASE G2210 W 19 79105168 M185XW01 V2 LCD PANEL M185XW01 V2 20 75019667 91 71Y10 001G PC BOARD ASSY MAIN GRU2 15 19 22 26 75020156 90 71Y28 002G DOCUMENTS KIT FOR GRU2 V1 27 75019676 56 04050 G51 PC BOARD ASSY POWER 50W FSP050 2PI06A PP 28 75019403 86 1B326 100 SCREW M4X10L M PAN PM SP B 29 750182...

Page 54: ...49 ˈ ˇ ˈ ˉ ˉ ˋ ˌ ˊ ˉ ˆ ˌ ˊ ˇ ˊ ˆ ˈ ˋ ˇ 22DV703R ...

Page 55: ...SY BACK 16 AJ000379 75019686 60 71Y06 001 BEZEL ASSY FRONT 17 AJ000338 75019668 G8CD00000210 DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSSIA 18 AJ000288 75019626 60 71X06 001 STAND ASSY 19 AJ000333 75019667 91 71Y10 001G PC BOARD ASSY MAIN GRU2 15 19 22 20 AJ000296 75019625 56 04065 1F1 PC BOARD ASSY POWER 65W DPS 65TP 3A REV 00 GAT 21 AJ000030 75019403 86 1B326 100 SCREW M4X10L M PAN PM SP BLK ZN 22...

Page 56: ...50 ˈ ˆ ˉ ˆ ˊ ˆˇ ˊ ˊ ˋ ˌ ˇ ˆ ˈ ˋ ˌ ˋ ˊ ˈ ˉ ˌ ˇ 22DV704R ...

Page 57: ... W 17 75019668 G8CD00000210DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSS 18 75020079 60 71X29 001 STAND ASSY BASE G2210 W 19 79105088 V216B1 L04 LCD PANEL V216B1 L04 20 75019667 91 71Y10 001G PC BOARD ASSY MAIN GRU2 15 19 22 26 75020156 90 71Y28 002G DOCUMENTS KIT FOR GRU2 V1 27 75019625 56 04065 1F1 PC BOARD ASSY POWER 65W DPS 65TP 3A REV 00 28 75019630 86 VA326 100 SCREW M4 10L P T A BLACK ZN W32 2...

Page 58: ...51 ˈ ˆ ˉ ˆ ˊ ˆ ˋ ˌ ˇ ˆ ˈ ˋ ˋ ˊ ˈ ˉ ˌ ˇ 26DV703R ˆ ˆ ˉ ˇ ˌ ˇ ...

Page 59: ...19699 60 71Y12 001 COVER ASSY BACK 19 AJ000377 75019697 60 71Y01 001 BEZEL ASSY FRONT 20 AJ000338 75019668 G8CD00000210 DVD RW DRIVE UNIT HH SLOT DAV RR953WR RUSSIA 21 AJ000383 75019698 60 71Y11 002 STAND ASSY 22 AJ000371 75019700 91 71Y10 C01G PC BOARD ASSY MAIN GRU2 26 32 23 AJ000373 75019694 56 04129 G21 PC BOARD ASSY POWER 128W PFC FSP128 3F01A PP G 24 AJ000136 75019508 86 WAX83 8R0 SCREW T2 5...

Page 60: ...53 ˈ ˆ ˉ ˆ ˊ ˆ ˊ ˋ ˌ ˇ ˆ ˈ ˋ ˋ ˊ ˈ ˉ ˌ ˇ 32DV703R ˌ ˆ ˉ ˇ ...

Page 61: ...000376 75019709 60 71X28 001 COVER ASSY LIPS 18 AJ000386 75019712 60 72K08 001 BEZEL ASSY FRONT 19 AJ000338 75019668 G8CD00000210 RR953WR RUSSIA 20 AJ000382 75019711 60 71Y10 002 STAND ASSY 21 AJ000371 75019700 91 71Y10 C01G PC BOARD ASSY MAIN GRU2 26 32 22 AJ000373 75019694 56 04129 G21 FSP128 3F01A PP G 23 AJ000304 75018193 86 1F556 6R0 SCREW M M4 L6 S P NI 24 AJ000305 75019590 86 1HR36 140 SCRE...

Page 62: ...55 6 Packing Diagrams 15DV703R ...

Page 63: ...56 19DV703R 19DV704R ...

Page 64: ...57 22DV703R 22DV704R ...

Page 65: ...58 26DV703R ...

Page 66: ...59 32DV703R ...

Page 67: ...U Demodulator Audio Processor HP AMP DAC LVDS Digital Video Processor HDCP KEY Micro Processor I O Analog Front End Audio IN HDMI NOR Flash EEPROM DDR Power AMP SAW Filter Reg ICs LCD Panel 1366x768 TUNER EEPROM IF1 RF IN PC YPrPb AV1 HDMI 2 S HDMI 1 USB TosLink HEAD Phone CH VOL VOL Enter Input r e w o P u n e M CH ...

Page 68: ...61 DVD Module ...

Page 69: ... 7pin CN4 14pin CN15 4pin CN1 14pin CN2 8pin Power Supply Unit CN22 3pin To DVD Power To DVD Signal To Speaker To IR LED Light Sensor Board Panel Main Board To 15 Key PAD To 19 32 Key PAD 3W 8 Ohm for 15 18 5 21 6 5W for 26 3W for 15 18 5 21 6 TDA7491P 10W 6 Ohm for 26 32 10W for 32 ...

Page 70: ...W TX 6W 211 nB 211nB U18 U2 U9 6W EWE BQM2195VD HQ 6B0UP363 2 3W BQX8231 31B0TP9 U10 4 4W EWE 511nB 2B BQM2195VD HQ 6B0UP363 BQM2195VD HQ 6B0UP 363 EES 9Ny27 FN7B 271 5H06H 611 nB 639 nB U11 U17 QBOFM MWET WDD 23W 0 6W 2 B U3 MWET WEE Q NPT Q7514GWH HQ 2 B Cfbe Gps 37 43 7W EWE BP 2157 3B0TP9 911 nB 581 nBA91 fgg 811 nB U5 26S Y 3 361nB BQM2228 61WD 2B0TPU334 UVOFS 6W UVOFS 361nB U4 TM1 TM2 711 nB...

Page 71: ...64 8 Printed Circuit Board Top Trace ...

Page 72: ...65 Top Component ...

Page 73: ...66 Bottom Trace ...

Page 74: ...67 Bottom Component ...

Page 75: ...5 GP NC VR25 MLVG04023R0QV05 GP NC 1 2 R114 10KR2J 3 GP R114 10KR2J 3 GP 1 2 R119 2KR2J 1 GP R119 2KR2J 1 GP 1 2 R216 33KR2J 3 GP NC R216 33KR2J 3 GP NC 1 2 CN9 SKT HDMI19P 56 GP U1 CN9 SKT HDMI19P 56 GP U1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 R125 10KR2J 3 GP R125 10KR2J 3 GP 1 2 R115 2KR2J 1 GP R115 2KR2J 1 GP 1 2 VR27 MLVG04023R0QV05 GP NC VR27 MLVG04023R0QV05 GP NC 1 2 R116...

Page 76: ...R 12P 7 GP ANT_PWR 1 B1_ 5V 2 RF_AGC 3 SCL 4 SDA 5 B2_ 5V 6 NC 10 10 NC 9 9 NC_VTU 7 NC 8 8 IF2 11 GND 13 GND 14 GND 15 IF1 12 GND 16 C274 SC100P50V2JN 3GP C274 SC100P50V2JN 3GP 1 2 C115 SC10U16V5ZY GP C115 SC10U16V5ZY GP 1 2 Q20 MMBT3906 H GP NC Q20 MMBT3906 H GP NC C B E C286 SC820P50V2KX 1GP NC C286 SC820P50V2KX 1GP NC 1 2 C112 SCD1U16V2KX 3GP C112 SCD1U16V2KX 3GP 1 2 R234 100KR3J L GP NC R234 ...

Page 77: ...FE CN5 RCA JACK182 GP 5T 5S 4T 4S 3T 3S 2T 2S 1T 1S NP1 NP2 NP3 C70 SC22P50V2JN 4GP NC C70 SC22P50V2JN 4GP NC 1 2 R65 10KR2J 3 GP NC R65 10KR2J 3 GP NC 1 2 R59 39KR2J GP R59 39KR2J GP 1 2 R77 100R2J 2 GP R77 100R2J 2 GP 1 2 R74 75R5F 1 GP R74 75R5F 1 GP 1 2 L44 0R0603 PAD 1 GP L44 0R0603 PAD 1 GP 1 2 R71 75R5F 1 GP R71 75R5F 1 GP 1 2 R222 0R0402 PAD R222 0R0402 PAD 1 2 R55 75R5F 1 GP R55 75R5F 1 G...

Page 78: ...0 100R3J 4 GP R90 100R3J 4 GP 1 2 R92 4K7R2J 2 GP R92 4K7R2J 2 GP 1 2 C94 SC4D7P50V2CN 1GP C94 SC4D7P50V2CN 1GP 1 2 C93 SC4D7P50V2CN 1GP C93 SC4D7P50V2CN 1GP 1 2 L96 HCB1608KF121T30 GP L96 HCB1608KF121T30 GP 1 2 VR14 MLVG04023R0QV05 GP NC VR14 MLVG04023R0QV05 GP NC 1 2 R101 100R2J 2 GP R101 100R2J 2 GP 1 2 L67 0R0603 PAD 1 GP L67 0R0603 PAD 1 GP 1 2 R94 4K7R2J 2 GP R94 4K7R2J 2 GP 1 2 L65 0R0603 P...

Page 79: ...SC1U10V2KX 1GP 1 2 C229 SC2D2U10V3ZY 1GP C229 SC2D2U10V3ZY 1GP 1 2 L79 HCB2012KF 121T50 GP L79 HCB2012KF 121T50 GP 1 2 VR36 MLVG04023R0QV05 GP NC VR36 MLVG04023R0QV05 GP NC 1 2 C226 SC330P50V3JN GP C226 SC330P50V3JN GP 1 2 C215 SCD1U16V2KX 3GP C215 SCD1U16V2KX 3GP 1 2 R242 2D2R5F 2 GP R242 2D2R5F 2 GP 1 2 C237 SC2D2U10V3ZY 1GP C237 SC2D2U10V3ZY 1GP 1 2 C231 SCD1U25V3KX GP C231 SCD1U25V3KX GP 1 2 T...

Page 80: ...M2513NUC TRL GP 1 2 3 C33 SCD1U25V3KX GP C33 SCD1U25V3KX GP 1 2 R28 4K7R2J 2 GP R28 4K7R2J 2 GP 1 2 VR4 MLVG04023R0QV05 GP NC VR4 MLVG04023R0QV05 GP NC 1 2 Q1 MMBT3904 4 GP Q1 MMBT3904 4 GP C B E R7 4K7R2J 2 GP R7 4K7R2J 2 GP 1 2 R26 100R3J 4 GP R26 100R3J 4 GP 1 2 R16 18KR3 GP R16 18KR3 GP 1 2R18 2D2R5F 2 GP R18 2D2R5F 2 GP 1 2 C48 SC10U16V6KX 3GP C48 SC10U16V6KX 3GP 1 2 H1 HOLE H1 HOLE 1 H5 HOLE...

Page 81: ...54 SC1U10V2KX 1GP C54 SC1U10V2KX 1GP 1 2 C66 SC10U16V5ZY GP C66 SC10U16V5ZY GP 1 2 C39 SCD1U16V2KX 3GP C39 SCD1U16V2KX 3GP 1 2 C59 SC10U16V5ZY GP C59 SC10U16V5ZY GP 1 2 U10 G1084 33T43UF GP U10 G1084 33T43UF GP GND 1 VOUT 2 VIN 3 C52 SC10U16V5ZY GP C52 SC10U16V5ZY GP 1 2 U9 G1117T43UF GP U9 G1117T43UF GP GND ADJ 1 VOUT 2 VIN 3 R34 10KR3J L1 GP R34 10KR3J L1 GP 1 2 C47 SCD01U50V3KX 4GP NC C47 SCD01...

Page 82: ...09 SCD1U16V2KX 3GP 1 2 U18 MX25L3205DM2I 12G GP U18 MX25L3205DM2I 12G GP CS 1 SO 2 WP 3 GND 4 SI 5 SCK 6 NC 7 7 VCC 8 C207 SCD1U16V2KX 3GP NC C207 SCD1U16V2KX 3GP NC 1 2 R167 1KR2F 3 GP R167 1KR2F 3 GP 1 2 C210 SCD1U16V2KX 3GP NC C210 SCD1U16V2KX 3GP NC 1 2 R169 22R2J 2 GP R169 22R2J 2 GP 1 2 L102 FILTER 130 GP L102 FILTER 130 GP 1 3 4 2 U17 EM6AA160TSA 4G GP U17 EM6AA160TSA 4G GP VDD 1 DQ0 2 VDDQ...

Page 83: ...10R3J 2 GP R203 510R3J 2 GP 1 2 VR37 MLVG04023R0QV05 GP NC VR37 MLVG04023R0QV05 GP NC 1 2 C252 SCD1U16V2KX 3GP C252 SCD1U16V2KX 3GP 1 2 C261 SCD1U16V2KX 3GP C261 SCD1U16V2KX 3GP 1 2 L90 HCB1608KF 301T20 GP L90 HCB1608KF 301T20 GP 1 2 CN20 JW T CON7 6 GP CN20 JW T CON7 6 GP 1 2 3 4 5 6 7 C251 SC1U6D3V2KX GP NC C251 SC1U6D3V2KX GP NC 1 2 C290 SC100P50V2JN 3GP C290 SC100P50V2JN 3GP 1 2 S2 S3 Q15 DTA1...

Page 84: ...Q N X DLQ N X 5 B287 B287 9 B67 9 B67 9 B67 5 5 3 5 5 3 5 5 3 3 5 5 3 3 5 5 3 3 5 5 3 3 6 8 9 3 6 8 9 3 5 5 3 5 5 3 2 3 8 2 3 8 8 6 1625 3 3 8 6 1625 3 3 9 287 1 1 1 5 800 5 5 800 5 8 50 3 8 50 3 287 1 9 5 800 5 5 800 5 6 8 9 3 1 6 8 9 3 1 6 8 9 3 1 6 8 9 3 1 6 8 9 3 6 8 9 3 5 5 3 5 5 3 5 3 8 5 3 8 1 7 21 3 1 7 21 3 6 8 9 3 1 6 8 9 3 1 6 8 9 3 1 6 8 9 3 1 6 8 9 3 6 8 9 3 5 5 3 3 5 5 3 3 6 8 9 3 1 ...

Page 85: ... TACT 87 GP 1 2 4 3 5 R219 2K4R3F GP R219 2K4R3F GP 1 2 R204 470R3F GP R204 470R3F GP 1 2 CN407 JWT CON3 2 GP CN407 JWT CON3 2 GP 1 2 3 R237 1K4R3F 1 GP R237 1K4R3F 1 GP 1 2 S904 SW TACT 87 GP S904 SW TACT 87 GP 1 2 4 3 5 R232 2K4R3F GP R232 2K4R3F GP 1 2 R217 820R3F 2 GP R217 820R3F 2 GP 1 2 S903 SW TACT 87 GP S903 SW TACT 87 GP 1 2 4 3 5 S902 SW TACT 87 GP S902 SW TACT 87 GP 1 2 4 3 5 S901 SW TA...

Page 86: ...1 SCD1U16V2KX 3GP 1 2 L40 HCB1608KF 301T20 GP L40 HCB1608KF 301T20 GP 1 2 C138 SCD1U16V2KX 3GP C138 SCD1U16V2KX 3GP 1 2 TP6 TP6 1 RN6 SRN22J 3 GP U RN6 SRN22J 3 GP U 1 2 3 4 5 6 7 8 R150 22R2J 2 GP R150 22R2J 2 GP 1 2 C155 SCD047U10V2KX 2GP C155 SCD047U10V2KX 2GP 1 2 L77 HCB1608KF121T30 GP L77 HCB1608KF121T30 GP 1 2 C160 SCD047U10V2KX 2GP C160 SCD047U10V2KX 2GP 1 2 C153 SCD1U16V2KX 3GP C153 SCD1U1...

Page 87: ...er turn on LED green when the keypad or remote control is pressed Plug TV power cord to an AC outlet No Which one is the problem related to Yes Check power on Power board 5Vsb 12V Check power on Main board Yes No Power board fails Please replace the power board with a new one Check power reset crystal and flash circuit No Video Audio ...

Page 88: ...Vsb Does power have 12V Yes Have 6V Have 5V Have 3 3V Have 2 6V Have 1 25V Yes Yes Yes Yes Yes No Check power board Have 3 3V Have 1 2V Yes Yes Check IC7 Check IC9 No No No Check IC5 No Check IC2 4 No No Check IC11 for DDR No Check IC21 No Check IC10 ...

Page 89: ...d related circuit Check signal path from connector to scaler Check signal path from connector to scaler Check signal path from connector to scaler especially the Y signal Check signal path from connector to scaler RF AV VGA Component HDMI 1 Check TM2 2 6 for the 5V 2 Check TM2 4 5 for I2C check Check C154 1 Check C172 for VGA_R 2 Check C174 for VGA_G 3 Check C176 for VGA_B 4 Check R91 for HSYNC 5 ...

Page 90: ...e VOL button on the remote control or on the TV Please make sure the signal cable is connected and has output Remove the headphone Note Speaker will be muted when headphone is connected Check IC19 power pin6 7 12 13 12Vdc Yes Check IC19 audio output Yes Yes Check IC19 output signal Yes Check net MUTE and HP circuit Check equipment output No Check U1 No IC19 fails No ...

Page 91: ...ed Updating the LCD TV Firmware Follow these steps 1 Insert the USB device with the new firmware into the side USB jack The below window appears 2 Highlight Yes and press ENTER on the remote control The firmware update begins LCD PWR ON 0000 MB VERSION 72J01DC3GSA MCU F W CHECK SUM VERSION System F W CHECK SUM VERSION 66387100 V1 06 052 SYSTEM UPDATE GRU2_SYS_V1 06 052 img Do you want to save the ...

Page 92: ...ss TV DVD on the remote control to switch to DVD mode Make sure there is no disc inserted 3 Press and hold the STOP button on the LCD TV and at the same time press and hold the 1 button on the remote control 4 After at least 2 seconds the firmware information is displayed SYSTEM UPDATE Success Please press ENTER key to reset TV Yes UPDATE FINISH Success Please remove the USB Driver and Yes Press E...

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Toshiba 15DV703R, Service Manual

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