Related Manuals for Toshiba 42WL55A
Summary of Contents for Toshiba 42WL55A
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Page 1: Lcd Color Television
FILE NO. 060-200509 SERVICE MANUAL LCD Color Television 42WL55A 42WL55E 42WL55R 42WL55T TOSHIBA CORPORATION 2005 Published in Japan Sep. 2005 (YC) -
Page 2: Table Of Contents
TABLE OF CONTENTS SERVICE SAFETY PRECAUTIONS ............................ 3 HANDLING THE LCD MODULE ............................5 SERVICE MODE .................................. 7 LOCATION OF CONTROLS ............................... 12 LAYOUT OF MAJOR BOARDS ............................14 MECHANICAL DISASSEMBLY ............................15 EXPLODED VIEW ................................17 PACKING DISASSEMBLY ..............................19 CHASSIS AND CABINET REPLACEMENT PARTS LIST .................... -
Page 3: Service Safety Precautions
SERVICE SAFETY PRECAUTIONS • The caution items shown here describe major safety issues and should always be observed. • The meanings of the various indications are as follows. Indicates a hypothetical situation in which service personnel and nearby third parties, or even WARNING end users due to a product defect after the service operation is completed, could possibly be in danger of injury or even death in the event of operational error. - Page 4 WARNING • Always advise users to keep children away. There is danger of injury to children from tools, disassembled products, etc. KEEP CHILDREN AWAY • Always disconnect the power plug before starting work whenever power is not required. Failure to disconnect the power plug before starting work can result in electrical shock. UNPULUG •...
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Page 5: Handling The Lcd Module
HANDLING THE LCD MODULE Safety Precautions 3. If the panel surface becomes soiled, wipe with cotton or a In the event that the screen is damaged or the liquid crystal soft cloth. If this does not remove the soiling, breathe on (fluid) leaks, do not breathe in or drink this fluid. - Page 6 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 con- ditions 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.
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Page 7: Service Mode
SERVICE MODE 1. ENTERING SERVICE MODE 1) Press button once on 2) Press button again and 3) While pressing the button, Remote Control. keep pressing. press MENU button on TV set. or Sound Mute (Service mode display) DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV. - Page 8 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) 5. ADJUSTING THE DATA 1) Pressing of VOLUME ; +/– button will change the value of data in the range from 00H to FFH. The variable range depends on the adjusting item.
- Page 9 SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s is executed properly. 2) During diagnosis, the following displays are shown. Firmware : Version information of microprocessor In case of file name : WL55_ASIA and Version : 0100 indicates [WL55_ASIA_0100].
- Page 10 VERSION CHECK MODE 1) Press “9” button twice on Remote Control during display of adjustment menu in the service mode. The version of main MPU will begin to check. 2) During Version Check, the following displays are shown. MAIN MPU : Version information of microprocessor In case of file name : WL55_ASIA, Version 0100 for Code Program Version and (E16) for OSD Version indicates [WL55_ASIA_0100(E16)]...
- Page 11 10. STATUS CHECK MODE 1) Press “9” button thrice on Remote Control during display of adjustment menu in the service mode. The status of this model will begin to check. 2) During Status Check, the following displays are shown. EXT1 1080i-50 C6 38 54 CE 08 0000 0000 0000...
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Page 12: Location Of Controls
LOCATION OF CONTROLS TOP/Front TV top view TV front view Top view You can swivel the TV screen. Swivel angle: 15 degrees to left and right. Remote sensor Input source Volume – + Power Power indicator (red) selection Menu MENU Program position On-timer indicator (green) Menu... -
Page 13: Remote Control
: To control TV VCR : To control VCR DVD : To control DVD When in VCR or DVD mode: When in Teletext mode: (Only for Toshiba VCR/DVD To reveal concealed text players) To hold a wanted page to PAUSE... -
Page 14: Layout Of Major Boards
LAYOUT OF MAJOR BOARDS U003B FRONT AV BOARD U003E PC HDMI BOARD U003A TN AV BOARD U004 LOW B BOARD U003D KEY BOARD U001 U002A SIGNAL BOARD POWER BOARD U003C U002B RMT LED BOARD AC IN BOARD – 14 –... -
Page 15: Mechanical Disassembly
MECHANICAL DISASSEMBLY 1. Remove the stand (foot) and back cover. A450 A445 PP3×8 +SW+W SBN ×3 BITTB4×16 SBN ×16 A401 PP 5×16 SW+W SBN ×5 A420 2. Remove the boards (FRONT AV,PC HDMI, KEY) and back center cover. PP3×8+SW+W SBN ×7 PP3×8+SW+W SBN ×2... - Page 16 3. Remove the boards (POWER, AC-IN, SIGNAL, LOW B, TN AV, RMT LED) and speaker. PP3×8 U004 PP3×8+SW+W SBN +SW+W SBN ×6 ×5 PP3×8+SW+W SBN U003A ×4 PP3×8+SW+W SBN ×8 U001 BITTB3×12SBN ×3 U003C U002A BITTB 4×16 SBN PP3×8 ×6 +SW+W SBN ×4 W661...
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Page 17: Exploded View
EXPLODED VIEWS 1. Chassis Block A445 A450 PP3×8+SW+W SBN ×3 BITTB4×16 SBN ×10 A401 PP3×8+SW+W SBN ×2 BITTB3×12SBN ×2 A340 BITTB4×16 SBN PP3×8+SW+W SBN PP3×8+SW+W SBN ×2 ×4 ×4 PP3×8+SW+W SBN ×3 PP3×8+SW+W SBN ×4 A320 U003D U003B U003E PP3×8+SW+W PP3×8 +SW+W PP3×8... -
Page 18: Main Block
2. Main Block PP3×8+SW+W SBN ×6 U003A PP3×8+SW+W SBN PP3×8 U004 ×8 +SW+W SBN ×4 PP3×8 +SW+W SBN ×4 PP3×8+SW+W SBN ×5 PP3×8 +SW+W SBN ×6 U002A U001 PP3×8+SW+W SBN ×1 U002B P801 PP3×8 +SW+W SBN ×2 PP3×8 +SW+W SBN PP3×8 +SW+W SBN ×8... -
Page 19: Packing Disassembly
PACKING DISASSEMBLY A705 A701T A701R A701E A701A A705 A702A A702A Y101K Y101J Y101H A170 Y130 Y101A A702B A709 A702B A701B - 19 -... -
Page 20: Chassis And Cabinet Replacement Parts List
• • • • • 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. Model : 42WL55A/42WL55E/42WL55R/42WL55T Capacitors ..... CD : Ceramic Disk PF : Plastic Film EL : Electrolytic Resistors .... - Page 21 Location Parts No. Description Location Parts No. Description C868 76435221 CERAMIC DISC, 500V SL 220PF J CE66 76539474 PLASTIC FILM, 50V 0.47UF J C869 76435221 CERAMIC DISC, 500V SL 220PF J CE67 76666470 ELECTORLYTIC, 16V 47UF M 3A C870 76503425 PLASTIC FILM CQ92 3D2J473J-K5 CE90 76073186 ELECTROLYTIC, 35V 470UF M C872...
- Page 22 Location Parts No. Description Location Parts No. Description R685 76011222 CHIP, 1/20W 2.2K OHM J R8152 76011473 CHIP, 1/20W 47K OHM J R686 76011102 CHIP, 1/20W 1K OHM J R8160 76011103 CHIP, 1/20W 10K OHM J R687 76011102 CHIP, 1/20W 1K OHM J R8161 76011473 CHIP, 1/20W 47K OHM J R688...
- Page 23 Location Parts No. Description Location Parts No. Description R8804 76871222 CHIP, 1/8W 2.2K OHM J RT14 76011101 CHIP, 1/20W 100 OHM J R8805 76011102 CHIP, 1/20W 1K OHM J RT15 76011151 CHIP, 1/20W 150 OHM J R8806 76011102 CHIP, 1/20W 1K OHM J RT16 76011391 CHIP, 1/20W 390 OHM J R8807...
- Page 24 Location Parts No. Description Location Parts No. Description GT03 76000445 CHIP JUMPER, 1608TYPE Q841 23000823 IC, PHOTO COUPLER, TLP421F(GR) GV01 76000445 CHIP JUMPER, 1608TYPE Q842 23085389 IC, NJM431L Q860 23135066 IC, STRZ4479 COILS & TRANSFORMERS Q862 23000823 IC, PHOTO COUPLER, TLP421F(GR) L101 23248398 COIL, CHOKE, TLN3278D Q863...
- Page 25 23357848 DIODE, ZENER, MTZJ8.2B P661 23023302 EARPHONE JACK D889 23357848 DIODE, ZENER, MTZJ8.2B P801 #1 23372294 POWER CORD, SAA 2.3M 7.5A —2 @E113 42WL55A D890 23357847 DIODE, ZENER, MTZJ8.2A #2 23372356 POWER CORD, UK-HK-PSB 10A MP5004SC @E111 42WL55E D891 23357847 DIODE, ZENER, MTZJ8.2A #3 23372298 POWER CORD, 250V2.5A @E114 42WL55R...
- Page 26 23518043 PACKING, JOINT, 32Z5P A709 23946938 PACKING, CENTER PACKING Y101A #1 23566722 OWNERS MANUAL, ENGL LCD @E113 42WL55A #2 23566722 OWNERS MANUAL, ENGL LCD @E111 42WL55E #3 23566721 OWNERS MANUAL, ENGL/RUSIA LCD @E114 42WL55R #4 23566722 OWNERS MANUAL, ENGL LCD @E112 42WL55T...
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Page 27: Pc Boards Top & Bottom View
POWER BOARD PD2171D1 (U002A) BOTTOM (FOIL) SIDE R8395 CAUTION D8805 Q8801 F820 23547832 D8805 LIVE AREA D863 F2AL 250V Q8391 Q880A E-568 IS-P C3A L860 R8815 Q880 R867 Q820 R8803 L886 D822 Q860 L823 L824 Q8191 Q860A C819 C826 C827 C8250 R8802 C886... - Page 28 TN AV BOARD PD2224A1 (U003A) BOTTOM (FOIL) SIDE R685 D678 P516A R687 Q662 R6603 Q660 R690 R684 R687 R6603 P602A R6601 Q662 R683 Q660 C118 C118 R6601 R685 D677 R683 C117 C117 D677 R6602 D678 C685 C685 GR612 D676 Q661 P803B GR612 D676...
- Page 29 FRONT AV BOARD PD2224A2 (U003B) FRONT AV BOARD PD2224A2 (U003B) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE P661 PV60 PV61 GR604 RC11 RV122 RC12 RC11 PV60 PV61 RV121 RV121 RV122 RV123 RV129 GR605 RV123 P661 R697 R693 R693 CV122 CY650 DV120 R689 CY650 R695...
- Page 30 PC INPUT BOARD PD2224A5 (U003E) PC INPUT BOARD PD2224A5 (U003E) AC IN BOARD PD2171D2 (U002B) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE BOTTOM (FOIL) SIDE GAP1 GAP2 GAP3 GAP4 GAP6 GAP5 PV90 RR03 PV90 P801A 23590305 P802A PD2224 DR03 DR02 T801 T802 DR03 DR02...
- Page 31 SIGNAL BOARD PD2238C1 (U001) SIGNAL BOARD PD2238C1 (U001) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE – 35 – – 36 –...
- Page 32 SCHEMATIC DIAGRAM MODEL : 42WL55A/42WL55E/42WL55R/42WL55T WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON PAGE 3 OF THIS MANUAL. 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.
- Page 33 SCHEMATIC DIAGRAM STRUCTURE: AC INPUT Circuit ..........................1/60 LOW_B Circuit CONNECTOR [ SHEET-1/2 ] ..... 2/60 – LOWB [ SHEET-2/2 ] ..... 3/60 PC-IN Circuit ............................4/60 POWER Circuit CONNECTOR [ SHEET-1/7 ] ..... 5/60 – RELAY/RUSH PROTECTION [ SHEET-2/7 ] ..... 6/60 –...
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Page 34: Circuit Block Diagram
CIRCUIT BLOCK DIAGRAM TN-AV UNIT H001 VIDEO SYSTEM SIGNAL UNIT QV01 Q501 MM1630AQ TB1274AFG SYNC-DET DDR SDRAM DDR SDRAM CVBS SYNC-DET CORTEZ CVBS SCART-1 CVBS/S #8DET OUT-1 DATA CVBS PROCESS SCART-2 OUT-2 #8DET CVBS/S SCART-3 SCART-3 #8DET OUT-3 SEL-OUT ANALOG FRONT EXT-4 YCbCr... -
Page 35: Audio System
AUDIO SYSTEM AV-TERMINAL SIGNAL Q610 IC600(MSP4450G-QI-C13-100) H001 TA8246AHQ DACM_LR APRO Demod. DACM_SUB QS01 Woofer MM1631AJBE SPK-OFF SC1-IN OUT1 E1(SC-full) SC1-OUT SC2-IN Selectable-Out E2(SC-full) OUT2 (SCART3) E3(SC-AV) SC3-IN E4(CS) OUT3 E5(front) SC4-IN HDMI-1(A) SC2-OUT HDMI-2(A) TV-Out(SCART1/2) HDMI(D) LR10 LR11 I2S-IN1 RESET I2S-OUT 9V(8V) CORTETZ... -
Page 36: Specifications
SPECIFICATIONS Model 42WL55A, 42WL55E, 42WL55R, 42WL55T Power source 42WL55A/R 220V - 240V AC, 50 Hz 42WL55E 220V - 240V AC, 50/60 Hz 42WL55T 110V - 240V AC, 50/60 Hz Power consumption 240 W, 0.5 W (standby) Dimensions 1,044 mm (W)