Toshiba 32EL833G Schematic

SERVICE MANUAL

LCD Color Television

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32EL833G

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Ver. 1.01

Updating history

Amendment by DS Company

Updating History,

2011-06-13 Amendment done by DS Company

Correction of the contents

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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.

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

information or data provided herein.

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GREEN PRODUCT PROCUREMENT

The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling and reuse of Waste Electrical and Electronic

Equipment and for the Restriction of the use of certain Hazardous 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. In line with this, Toshiba

proactively promotes Green Procurement, and seeks to purchase and use products, parts and materials that have low environmental impacts.

Green procurement of parts is not only confined to manufacture. The same green parts used in manufacture must also be used as replacement

parts.

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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 is manufactured using lead free solder.

DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT!

The melting temperature of lead-free solder is higher than that of leaded solder by 86ºF to 104ºF (30ºC to 40ºC). Use of a soldering iron designed

for lead-based solders to repair product made with lead-free solder may result in damage to the component and or 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.

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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.

1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is performed on the

receiver.

2. Always disconnect the power plug before any disassembling of the product. It may result in electrical shock.

3. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as nonmetallic control

knobs, insulating covers, shields, isolation resistor-capacitor network, etc.

4. Always keep tools, components of the product, etc away from the children, These items may cause injury 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 the particular model when making repairs. The parts used in products require special safety

characteristics such as inflammability, voltage resistance, etc. therefore, use only replacement parts that have these same characteristics.

Use only the specified parts when the mark is indicated in the circuit diagram or parts list.

7. Parts mounting and routing dressing of wirings should be the same as that used originally. For safety purposes, insulating materials such as

isolation tube or tape are sometimes used and printed circuit boards are sometimes mounted floating. Also make sure that wirings is routed

and clamped to avoid parts that generate heat and which use high voltage. Always follow the manufactured wiring routes / dressings.

8. Always ensure that all internal wirings are in accordance before re-assembling the external casing after a repairing completed. Do not allow

internal wiring to be pinched by cabinets, panels, etc. Any error in reassembly or wiring can result in electrical leakage, flame, etc., and may

be hazardous.

9. NEVER remodel the product in any way. Remodeling can result in improper operation, malfunction, or electrical leakage and flame, which

may be hazardous.

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 values in orms (Ω).

V: Voltmeter or oscilloscope

(r.m.s. or peak reading)

Input resistance : 1 MΩ Input capacitance : 200 pF

Frequency range : 15 Hz to 1 MHz and d.c. respectively

Note: Appropriate measures should be taken to obtain the correct value in case of non sinusoidal waveforms.

The measuring instrument is calibrated by comparing the frequency factor of with the solid line in figure F.2 of IEC 60990 at various frequencies. A calibration curve is constructed showing the deviation of from the ideal curve as a function of frequency.

TOUCH CURRENT = / 500 (peak value).

 The potential at any point (TOUCH CURRENT) expressed as voltage and does 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 following values:

- for a.c. : = 35 V (peak) and = 0.35 V (peak);

- for d.c. : = 1.0 V

Note: The limit values of = 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.

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SAFETY INSTRUCTION

Product Safety Notice

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are often passed unnoticed

by a visual inspection and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher

voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its supplements;

electrical components having such features are identified by the international hazard symbols on the schematic diagram and the parts list.

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.

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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. If the fluid should enter the eyes,

immediately rinse the eyes thoroughly with running water.

Precautions for Handling the LCD Module

CAUTION: The metal edges of the LCD module are sharp, handle it with care.

The LCD module can easily be damaged during disassembly or reassembly; therefore, always observe the following precautions when handling

the module.

1. When attaching the LCD module to the LCD cover, position it appropriately and fasten at the position where the display can be viewed most

conveniently.

2. Carefully align the holes at all four corners of the LCD module with the corresponding holes in the LCD cover and fasten with screws. Do not

strongly push on the module because any impact can adversely affect the performance. Also use caution when handling the polarized

screen because it can easily be damaged.

3. If the panel surface becomes soiled, wipe with cotton or a soft cloth. If this does not remove the soiling, breathe on the surface and then wipe

again.

If the panel surface is extremely solied, use a CRT cleaner as a cleaner. Wipe off the panel surface by drop the cleaner on the cloth. Do not

drop the cleaner on the panel. Pay attention not to scratch the panel surface.

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. CMOS-LSI circuitry is used in the LCD module, so avoid damage due to static electricity. When handling the module, use a wrist ground or

anchor ground.

7. Do not expose the LCD module to direct sunlight or strong ultraviolet rays for an extended period of time.

8. Do not store the LCD module below the temperature conditions described in the specifications. Failure to do so could result in freezing of the

liquid crystal due to cold air or loss of resilience or other damage.

9. Do not disassemble the LCD module. Such actions could result in improper operation.

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.

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P201 P202 CN1 CN12 1 24V 1 12V 1 +12V_NORMAL 1 PANEL_VCC 2 24V 2 12V 2 +12V_NORMAL 2 PANEL_VCC 3 24V 3 12V 3 +12V_NORMAL 3 PANEL_VCC 4 24V 4 GND 4 GND 4 PANEL_VCC 5 24V 5 GND 5 GND 5 OD_OCP_SEL 6 GND 6 GND 6 GND 6 PANEL_VCC 7 GND 7 5VSB 7 +5V_Standby 7 RXE4+ 8 GND 8 5VSB 8 +5V_Standby 8 GND 9 GND 9 5VSB 9 +5V_Standby 9 RXE3+

10 GND 10 ACD 10 ACDetect 10 RXE411 BRIGHT_ADJ 11 BD_PS_ON 11 BD_POWER_ON 11 RXEC+ 12 INV_ON_OFF 12 BRIGHT_ADJ 12 OCP_OUTPUT_PWM 12 RXE3-

13 INV_ON_OFF 13 INVERTER_ON_OFF 13 GND 14 PS_ON 14 STANDBY 14 RXEC-

15 RXE2+ 16 GND 17 RXE1+ 18 REX219 REX0+ 20 REX121 GND 22 REX023 RXO4+ 24 GND 25 RXO3+ 26 RXO427 RXOC+ 28 RXO329 GND 30 RXOC31 RXO2+ 32 GND 33 RXO1+ 34 RXO235 RXO0+ 36 RXO137 GND 38 RXO039 BRIGHT_ADJ 40 OCP_OUTPUT_PWM

CN2 1 +5V_Standby 2 KEY0 3 KEY1 4 GND CN11 5 IRIN 1 SPK_R6 LED_ON_OFF 2 SPK_R+ 7 LED_TIMER 3 SPK_L8 GND 4 SPK_L+

CN202 CON1 1 +5V_STBY 1 KEY2 2 GND 2 KEY1 3 RC_IR 3 GND 4 GND 4 GND 5 LED_ON_OFF 6 LED_TIMER

IR_LED BORAD

Speaker

MAIN BOARD

PSU Unit

PANEL (T-CON)

PANEL_INVERTER

KEY BORAD

Speaker

TROUBLESHOOTING GUIDE

UNDER CONSTRUCTION

Note: Please check back in the future.

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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.

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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. When firmware upgrade is finished, a message will be displayed on screen.

5. Unplug USB disk, and turn AC Off/On to reboot TV.

Note:

This upgrade method is available only when boot code exists in flash memory (Main Board).

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Global Serial No.

㪫㫆㫋㪸㫃㩷㪻㫀㪾㫀㫋㫊㪰㪮㪢㪤㫆㪻㪼㫃㪶㪠㪛㪪㪜㪩㪠㪘㪣

㪧㪸㫅㪼㫃

㪤㪸㫏㩷㪈㪋㪰㪮㪢㫏㫏㫏㪁㪁㪁㪁㪁㪁㪁㪁

㪊㩷㪻㫀㪾㫀㫋㫊㪊㩷㪻㫀㪾㫀㫋㫊㪍㩷㪻㫀㪾㫀㫋㫊㪉㪻㫀㪾㫀㫋㫊

㩿㪤㪇㪇㪇㪇㪈㫕㪤㪐㪐㪐㪐㪐㪀

㪬㪥㪠㪟㪘㪥

㪬㪪㪘㪄

㪚㪿㫀㫅㪸㪄

㪘㫊㫀㪸㩷㪄

㪜㪬㪢㪇㪈㪄㪣㪐㪐

㪦㫋㪿㪼㫉㪄

Ｙ：Year 8 2008 Panel vendor and version for the model.

9 2009

A 2010

Marking Marking Marking

B 2011

A J S

C 2012

B K T

…

C L U

WK䋺Week 01 WK01

D M V

02 WK02

E N W

03 WK03

F P X

04 WK04

G Q Y

…

H R Z

53 WK53

Model Information

L1 L1 L1 L1 L1 L1 L1 L1

K42 K43 K44 LC320EXN-SDA2

LC320EXN-SDA2 LC320EXN-SDA2 LC320EXN-SDA2 LC320EXN-SDA2

LC260EXN-SDA3 LC260EXN-SDA3 LC260EXN-SDA3 LC260EXN-SDA3

Panel ID Panel

L1 LC260EXN-SDA3K35

Model ID

K36 K37 K39 K70 K40 K41

32EL833F 32EL833N 32EL833R

26EL833R

26EL833RB

32EL833B 32EL833G

Model 26EL833B 26EL833G

26EL833F

Panel Vendor

AUO

CMO

Panel Vendor

SAMSUNG

LPL/LGD

CPT

IPS

Panel Vendor

SHARP

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.

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3. Move to Tag "3" by Right/Left Arrow key on the Remote.

4. Select "Model Type" cell.

5. Select the appropriate model type by Right/Left Arrow key on the Remote. Model type is written on the rating label.

6. Select "Reset to Def".

7. Select "Yes" and press "OK" button on the Remote.

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PARTS LIST

Precaution

WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE".

CAUTION: The international hazard symbols " " in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or

specified in the parts list.

The mounting position of replacements is to be identical with originals.

Before replacing any of these components, read carefully the

Do not degrade the safety of the receiver through improper servicing.

"SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE".

Note:

 The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description.

 The PC board assembly with mark is no longer available after the end of the production.

Abbreviations

Capacitors CD : Ceramic Disk

Resistors CF : Carbon film

OMF : Oxide Metal Film

PF : Plastic Film

: Carbon Composition

VR : Variable Resistor

EL : Electrolytic

MF : Metal Film

FR : Fusible Resistor

All CD and PF capacitors are ±5 %, 50 V and all resistor, ±5 %, 1/6 W unless otherwise noted.

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PARTS LIST

Updating history

Amendment by DS Company

Updating History,

2011-06-13 Amendment done by DS Company

Location Parts No. Description

E200 75025283 PC BOARD ASSY, MAIN, 32EL833, 9C-EB40M0040

E250 75025229 POWER OPENFRAME, 88W/+5 12 24V, 0433-005E000

E260 75025210 PC BOARD ASSY, KEY, 90-EB40S01D0

E270 75025211 PC BOARD ASSY, IR, 90-EB40S01A0

E310 75025243 LVDS CABLE, 30P TO 40P L:300MM, 1414-05B0000

E320 75025213 POWER CORD, EU/2P BLACK L:1.8M, 1411-00WA000, F/G/N/R/RB

E330 75025192 SPEAKER, 10W 8 OHM L+R, 04A4-00SK000

E340 75025276 CABLE, SPEAKER, 2P TO 2P L:330MM, 1419-001P000

E342 75025277 CABLE, INVERTER, 14P TO 12P, 1410-0083000

E344 75025275 CABLE, POWER, HSG 14P TO 14P, 1414-05BM000

E346 75025278 CABLE, POWER, 2P INLET-HSG 4P, 1414-05BL000

E348 75025284 CABLE, Y, 8P TO HSG 3+5P, 1414-05BK000

E410 75025271 MANUAL, 1506-0GKK000, G

E450 75025287 LABEL, RATING, 32EL833, 1510-0RN4000, G

E460 75025289 LABEL, CARTON, 32EL833, 1510-0QVF000, B/F/G/N

E400 75014827 REMOCON HAND UNIT, CT-90326

E100 75025309 FRONT BEZEL ASSY, 32EL833, 13EB-2UB0M01, B/F/G/N

E110 75025313 BACK COVER ASSY, 32EL833, 13EB-2UB0611, B/F/G/N

E140 75025315 PLATE, SIDE IO, 32EL833, 13EB-2UQ0C01, B/F/G/N

E120 75025281 STAND ASSY, 32EL833, 9C-EB40S00J0

E125 75025184 SCREW, FOR STAND ASSY, 13EB-2YB0401

E150 75025282 BRACKET ASSY, STAND, 32EL833, 9C-EB40S00K0

E155 75025209 SCREW, BRACKET ASSY, 9C-EB40S00D0

E190 75025228 MYLAR, 13EB-2VL0311

E500 75025317 CARTON BOX, 32EL833, 1503-03B9000, B/F/G/N

E510 75025305 EPS CUSHION, TOP RIGHT, 32EL833, 1505-01WG000, B/F/G/N

E511 75025306 EPS CUSHION, TOP LEFT, 32EL833, 1505-01WH000, B/F/G/N

E512 75025307 EPS CUSHION, BOTTOM RIGHT, 32EL833, 1505-01WJ000, B/F/G/N

E513 75025308 EPS CUSHION, BOTTOM LEFT, 32EL833, 1505-01WK000, B/F/G/N

E520 75025205 EPE BAG, 1516-015P000

E530 75025206 PE BAG, STAND, 1516-01AK000

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Toshiba 32EL833G Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual