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SERVICE MANUAL
LCD Color Television
42WLG66
Ver. 1
This 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).
GREEN PRODUCT PROCUREMENT
LEAD-FREE
For (*1) and (*2), refer to
and
SOLDER.
© TOSHIBA CORPORATION
file://I:\42WLG66-01\html\!!fcover.html
26/06/10
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Related Manuals for Toshiba 42WLG66
Summary of Contents for Toshiba 42WLG66
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Page 1: Service Manual
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). GREEN PRODUCT PROCUREMENT LEAD-FREE For (*1) and (*2), refer to SOLDER. © TOSHIBA CORPORATION file://I:\42WLG66-01\html\!!fcover.html 26/06/10... -
Page 2: Important Notice
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. -
Page 3: Green Product Procurement
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. -
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. file://I:\42WLG66-01\html\!!l-f_solder.html 26/06/10... -
Page 5: Safety Instruction
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, file://I:\42WLG66-01\html\!safe[lcd]asia_eu.html 26/06/10... - Page 6 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 file://I:\42WLG66-01\html\!safe[lcd]asia_eu.html 26/06/10...
- Page 7 = 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. file://I:\42WLG66-01\html\!safe[lcd]asia_eu.html 26/06/10...
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Page 8: Product Safety Notice
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. file://I:\42WLG66-01\html\!safe[lcd]asia_eu.html 26/06/10... -
Page 9: Precautions For Handling The Lcd Module
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. file://I:\42WLG66-01\html\!handling_lcd.html 26/06/10... - Page 10 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. file://I:\42WLG66-01\html\!handling_lcd.html 26/06/10...
- Page 11 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. file://I:\42WLG66-01\html\!handling_lcd.html 26/06/10...
- Page 12 Handling the LCD Module Page 4 sur 4 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. file://I:\42WLG66-01\html\!handling_lcd.html 26/06/10...
- Page 13 LC D -P h3R 32W LT 66/32W L66C /32L66X * U 01A P ow er U 01B LO W -B U 02A A V TER M R EG U LA TO R P O W ER B -B B -B B -B B 002 D i gi talU ni t ? ? D I G I TA L U N I T...
- Page 14 AV BOARD SIGNAL BOARD PANEL DDR RAM FLI8538 CORTEZ Plus VBI Data Processor N on PANEL I/F DCDi Video Input Analog MADi Decoder Terminal Front Scaling (Audio) (16port) CVBS(L/R) S-VIDEO(L/R) YCbCr(L/R) Channel Standby Process uCON Digital Input A EEPROM PC_IN(L/R) Digital Input B Micro-...
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Page 15: Schematic Diagram
10 W : Cement of 10 watt : ±10 % : ±2 % : ±1 % 2. CAPACITOR Unless otherwise noted in schematic, all capacitor values less than 1 are expressed in µF, and the values more than 1 in pF. file://I:\42WLG66-01\html\c_precaution.html 26/06/10... - Page 16 AC volts. 5. Waveforms are taken receiving color bar signal with enough sensitivity. 6. Voltage reading shown are nominal values and may vary ±20 % except H.V. file://I:\42WLG66-01\html\c_precaution.html 26/06/10...