Toshiba 26EL834G Service Manual

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SERVICE MANUAL

LCD Color Television

26EL834G

Ver. 1.00

Updating history

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Page 1 LCD Color Television 26EL834G Ver. 1.00 Updating history Currently there are no updates available. Please check back at a later time for any future updates. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 2: Important Notice
WARNING: You are requested that you shall not modify or alter the information or data provided herein without prior written consent by Toshiba. Toshiba shall not be liable to anybody for any damages, losses, expenses or costs, if any, incurred in connection with or as a result of such modification or alteration.
Page 3: Green Product Procurement
Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.
Page 4: Lead-Free Solder
PCB being soldered. Great care should be made to ensure high-quality soldering when servicing this product especially when soldering large components, through-hole pins, and on PCBs as the level of heat required to melt lead-free solder is high. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 5 Print this page SAFETY INSTRUCTION WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" INSTRUCTIONS BELOW. Safety Precaution WARNING: SERVICING SHOULD NOT BE ATTEMPTED BY ANYONE UNFAMILIAR WITH THE NECESSARY PRECAUTIONS ON THIS RECEIVER. THE FOLLOWING ARE THE NECESSARY PRECAUTIONS TO BE OBSERVED BEFORE SERVICING THIS CHASSIS.
Page 6 = 0.35 V (peak) for a.c. and = 1.0 V for d.c. correspond to the values 0.7 mA (peak) a.c. and 2.0 mA d.c. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 7: Safety Instruction
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create electrical shock, fire, or other hazards. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 8: Safety Precaution
Print this page SAFETY INSTRUCTION Handling the LCD Module Safety Precaution In the event that the screen is damaged or the liquid crystal (fluid) leaks, do not breathe in or drink this fluid. Also, never touch this fluid. Such actions could cause toxicity or skin irritation. If this fluid should enter the mouth, rinse the mouth thoroughly with water. If the fluid should contact the skin or clothing, wipe off with alcohol, etc., and rinse thoroughly with water.
Page 9 4. Leaving water or other fluids on the panel screen for an extended period of time can result in discoloration or stripes. Immediately remove any type of fluid from the screen. 5. Glass is used in the panel, so do not drop or strike with hard objects. Such actions can damage the panel. 6.
Page 10 10. When transporting the LCD module, do not use packing containing epoxy resin (amine) or silicon resin (alcohol or oxim). The gas generated by these materials can cause loss of polarity. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 11 PANEL_INVERTER...
Page 12: Troubleshooting Guide
Print this page TROUBLESHOOTING GUIDE UNDER CONSTRUCTION Note: Please check back in the future. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 13: Firmware Updating Procedure
Print this page FIRMWARE UPDATING PROCEDURE Firmware Upgrade - USB 1. Copy a firmware BIN file to USB disk. (Root directory) 2. Plug USB disk into TV USB port. 3. Reboot (AC Off/On) TV to upgrade firmware automatically. During firmware upgrade, OSD will be displayed on LCD screen, and power status LED will be blinking. 4.
Page 16: Destination Setting Change
Print this page DESTINATION SETTING CHANGE Whenever replacing the Main PCB with new one, perform this procedure. 1. Press "Mute" key twice on the Remote. 2. Press "Menu" button on the TV set. Then the OSD is displayed. 3. Move to Tag "3" by Right/Left Arrow key on the Remote. 4.
Page 17 6. Select "Reset to Def". 7. Select "Yes" and press "OK" button on the Remote. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 18: Parts List
: Variable Resistor : Electrolytic : Metal Film : Fusible Resistor All CD and PF capacitors are ±5 %, 50 V and all resistor, ±5 %, 1/6 W unless otherwise noted. >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS...
Page 20 75025259 EPS CUSHION, BOTTOM RIGHT, 26EL833, 1505-01WE000 E513 75025260 EPS CUSHION, BOTTOM LEFT, 26EL833, 1505-01WF000 E520 75025261 EPE BAG, 26EL833, 1516-0103000 E530 75025262 PE BAG, STAND, 26EL833, 1516-01AL000 >> terms and conditions >> privacy policy TOSHIBA WEB-ZEUS Copyright © 1995-2011 TOSHIBA Corporation, All Rights Reserved.
Page 30 BL_ON/OFF_1 R107 330R D214 +24V S102 330R L201 RS1008_SOD123 D216 D217 R248 R257 R259 R249 R250 R251 S211 BC848B R108 AUX_24 100R A/D_DIM_SEL Q210 TR200 C33_SOD123 C33_SOD123 250V DIM_PWM_ANALOG D100 RS1008_SOD123 C219 +400V C226 S212 R253 R254 R255 IC100 R252 470p RS1008_SOD123 D101...
Page 33 5V_TUN 5V_TUN ANALOG_IF R1546 IF_AGC_MST DIGITAL_IF_P 100R R1597 R1552 S100 DIF1 N.C. 100R IF_AGC_TUNER 5V_TUN R1545 C912 C910 DIF2 IF_AGC_T2 Z101 DIGITAL_IF_N 100R 100n 100n C546 OUT1 R138 SIFP IF_AGC_TUNER IF_AGC K9656M 2 IN2 OUT2 D145 SIFM R1591 F266 BA782 R139 5V_TUN 3V3_VCC...
Page 34 5V_VCC SCART PC INPUT TP13 SCART VIDEO OUTPUT AMPLIFIER C663 100n F179 VGA_DDC_5V R124 12V_VCC 470R 330R C120 220R SC_CVBS_IN U161 R1948 SC_CVBS_OUT 100R 220p C836 C860 R1947 ST24LC21 Q146 100R BC858B R1233 R1946 C378 220R 100R Q119 SCART_CVBS_OUT R1949 BC848B SC_FB 100R...
Page 35: Usb Interface
CFG_PWM0 CFG_PWM1 ONBOARD KEYBOARD LED SOCKET TWISTED PAIR LVDS OPTION AB25 AC24 TX_B_0_P R1615 PWM0 LVB0P AB24 AC25 3V3_VCC PWM1 LVB0M TX_B_0_N TX_B_0_N AD24 PWM2 LVB1P TX_B_1_P BACKLIGHT_DIM AD25 TX_B_1_N TX_B_0_P PWM3 LVB1M AE24 3V3_STBY TX_B_2_P LVB2P 5V_STBY AC23 LVB2M TX_B_2_N F259 TX_B_1_N...
Page 36 HDMI2 AUDIO OUTPUTs CN708 R1877 HDMI_0_RX2P MAIN_L DSP_MAIN_L R1900 C1197 R1869 SCART_AUDIO_IN_L C1198 AUL0 RXA0N HDMI_1_RX0N HDMI_0_RX2N 100R SCART_AUDIO_IN_R C1196 AUR0 RXA0P HDMI_1_RX0P HDMI_0_RX1P SAV_AUDIO_IN_L C1195 AUL1 RXA1N HDMI_1_RX1N R1868 R1887 SAV_AUDIO_IN_R C1193 AUR1 RXA1P HDMI_1_RX1P HDMI_0_RX1N IPOD_AUDIO_IN_L C1194 AUL2 RXA2N HDMI_1_RX2N R1909...
Page 37: Headphone Output
AUDIO AMP for 16" to 24" HEADPHONE OUTPUT F283 TP230 12V_VCC U163 PT2333 HP_L F285 24V_VCC TP229 Q160 MAIN_L F284 D192 HP_R BC848B 18V_VCC C1172 C729 C612 R623 SK24 F294 L_AUDIO_P_OUT 5V_VCC VDD_AUDIO 100n C665 220u 220u 100u 100u TP228 C615 C870 L_AUDIO_N_OUT...
Page 38 R1402 P_D1 PCM_D1 P_D0 TS1_D0 TS1_D0 TS_MDI0 TS0_D2 TS_MDO2 TS0_VALID TSMOVALID PCMDATA[0]/CI_DATA[0] TS1DATA[0] P_D0 PCM_D0 P_D1 TS1_D1 TS1_D1 TS_MDI1 TS0_D1 TS_MDO1 AD14 CI INTERFACE PCMDATA[1]/CI_DATA[1] TS1DATA[1] R1401 P_D2 PCM_D2 P_D2 AD15 TS1_D2 TS1_D2 TS_MDI2 TS0_D0 TS_MDO0 TS0_SYNC TSMOSTART PCMDATA[2]/CI_DATA[2] TS1DATA[2] P_A0 PCM_A0 P_D3...
Page 39: Serial Flash
DDR18V DDR18V C723 C721 C722 C719 C720 C717 DDR18V DDR18V 100n 100n 100n 100n 100n 100n C718 C715 C714 C716 C711 C713 100n 100n 100n 100n 100n 100n AA_MDATA0 AA_MADR0 BB_MDATA0 BB_MADR0 A_MADR0 B_MADR0 A_MADR[0] B_MADR[0] A_MADR1 B_MADR1 AA_MDATA1 AA_MADR1 BB_MDATA1 BB_MADR1 A_MADR[1]...
Page 40 F277 1V2_VCC VDDC_1V2 C1081 C997 C1005 C1070 100n 100n 100n F271 3V3_STBY AVDD_3V3 C1030 C1024 C1025 C1022 100n 100n 100n F274 2V5_VCC AVDD_2V5_PGA C1007 100n F272 AVSS_PGA 1V8_VCC AVDD_DDR C990 100n 100n C1004 C1001 C974 F275 2V5_VCC AVDD_2V5 F270 3V3_VCC VDD_3V3 C1028 C1009...
Page 41 W/ADAPTOR POWER BLOCK DIAGRAM ADAPTER SOCKET W_ADAPTER LDO2 LDO2 5V_VCC DC/DC1 12V_STBY 12V_VCC C1038 5V_VCC U174 DC-DC4 12V_STBY 100n 5V_STBY C1112 MP1583 7A/32VDC 1V2_VCC F287 DC-DC1 12V_STBY R1709 12V_INV COMP C1091 C1092 R1690 C1037 5V_STBY 7A/32VDC 100n R1722 9.1K C1130 5V_VCC INVERTER SOCKET W/ADAPTER DC-DC2...

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