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 ....................
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.
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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 •...
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.
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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.
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.
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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.
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The diagnosis will begin to check if interface among IC’s is executed properly. 2) During diagnosis, the following displays are shown. WL56_EU_0100 WL56_EU_0100 000000 27WL56P 27WL56P Firmware : Version information of microprocessor In case of file name : WL56_EU and Version : 0100 indicates[WL56_EU_0100].
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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. WL56_EU_0100 (E16) 27WL56P MAIN MPU : Version information of microprocessor In case of file name : WL56_EU, Version 0100 for Code Program Version...
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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...
LOCATION OF CONTROLS Front Standby GREEN – On-timer set RED – Power On Back SCART 1 (EXT1) SCART 2 (EXT2) CABLE HOLDER FIXING STRAP decoder* MEDIA REC. HDMI™ INPUT IN/OUT media recorder - 12 -...
OK to confirm your selection Text control buttons Stereo/Bilingual reception Bass Boost To select mode To mute the sound When in TV mode: When using a TOSHIBA VCR or DVD: Time display press to PAUSE When in Text mode: press to EJECT...
LAYOUT OF MAJOR BOARDS U004 AV OTHER BOARD U003 SIGNAL BOARD U001 POWER BOARD U006 KEY BOARD U005 LED/RMT BOARD U007 PC-IN BOARD U002 AC-IN BOARD - 14 -...
• 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 : 27WL56P Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
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Location Location Parts No. Description Parts No. Description CC03 76109152 CERAMIC CHIP, 50V B 1500PF K R169 76000445 CHIP JUMPER, 1608TYPE CC04 76109152 CERAMIC CHIP, 50V B 1500PF K R170 76011682 CHIP, 1/20W 6.8K OHM J CC05 76109102 CERAMIC CHIP, 50V B 1000PF K R501 76011682 CHIP, 1/20W 6.8K OHM J...
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SCHEMATIC DIAGRAM MODEL : 27WL56P 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.
SCHEMATIC DIAGRAM MODEL : 27WL56P WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "SERVICE SAFETY PRECAUTIONS" ON THE MANUAL FOR THIS MODEL. 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.
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OPEN R501 GJ16 R511 6.8k SHORT OPEN PV90 KRD-8622 GR34 PC-DSUB GR35 SHORT SHORT RR04 RR01 1/8W75 DR01 OPEN RR02 RR05 1/8W75 DR02 OPEN RR03 RR06 1/8W75 DR03 OPEN P902A B5B-PH-K-S DR04 DR05 OPEN OPEN P900A B9B-PH-K-S 27WL56P PC-IN_BOARD (8/48)
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Note: For POWER_DB_O (L: ON) line When power is ON, GATE is closed until turn ON DB. During POD STBY mode, it keeping ON, but shut-off circuit includes into DB. 27WL56P SIGNAL MICRO I/O (25/48)
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402:3A;409:1B 27WL56P SIGNAL OCM MEMORY I/F (26/48)
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401:1A;409:1B 27WL56P SIGNAL FLASH MEMORY (27/48)
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Note: For I2C Bus lines (SDA_STBY, SCL_STBY) : Normally, connecting to Cortez, When POD STBY mode, these are connected to DB. 27WL56P SIGNAL STD-BY MICRO (30/48)
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*I2C Bus Switching of Stand-By Micom SW1: H at 8V Line (Normally) ; Connect to Cortez SW2: L at 8V Line (POD STBY state) ; Connect to DB side 27WL56P SIGNAL I2C Switch (36/48)