SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards.
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or...
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IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range 3. Test method This specification is applied to LB61D chassis. 3.1 Performance : LGE TV test method followed 2. Requirement for Test 3.2 Demanded other specification Safety : CB Specification Testing for standard of each part must be followed in below EMC : CISPR 13 Specification...
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5. Chroma & Brightness 5-1. 47LB2DE Item Unit Remark White peak Brightness cd/m (Center 1-point/Full White Pattern) White average brightness cd/m Brightness uniformity Color coordinate 0.638 - 0.03 0.340 + 0.03 GREEN 0.279 0.611 BLUE 0.146 0.062 WHITE 0.272 (Standard) 0.278 Contrast ratio 600:1...
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5-2. 42LB2DE Item Unit Remark White peak Brightness cd/m (Center 1-point/Full White Pattern) White average brightness cd/m Brightness uniformity Color coordinate 0.638 - 0.03 0.340 + 0.03 GREEN 0.279 0.611 BLUE 0.146 0.062 WHITE 0.272 (Standard) 0.278 Contrast ratio 1100:1...
ADJUSTMENT INSTRUCTION 1. Application Object 4. Sub-ucom Download These instructions are applied to all of the 42"/47" LCD TV, (1) Test Equipment: PC, Jig for download LB61D Chassis (2) Connect the power of VSC B/D. (3) Execute download program of PC. 2.
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(2) How to adjustment the Component1 1080i 6-3. Adjustment 60Hz Mode, RGB (1) How to adjustment the uPD PAL 1) Select Component1, RGB-DTV as the input with Color 1) Select AV1 as the input with 100% 8 Color Bar Pattern Bar Pattern in 1080i 60Hz mode and select in PAL mode and select ‘AV1’...
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7-4. Act or set the EDID S/W 8. Adjustment of White Balance 1) As above Fig. 6, Connect the Set, EDID Download Jig, PC 8-1. Required Equipment : & Cable. 2) Turn on the PC & EDID Download Jig. And Execute the (1) Color analyzer (CA-210 (CH 9) or similar product) S/W : EDID TESTER Ver,2.5.
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11. Shipping Conditions Item Value Remark Power CH Memory Analog C0,C5,C6,S11,C20,C35,C52,C68 Digital Picture Dynamic Color temperature COOL Advanced Cinema Black Level Auto Audio Standard Balance TV speaker Time Auto clock Manual Clock Enable Off timer On timer Sleep timer Auto sleep Special Sub title Child lock...
TROUBLESHOOTING 1. Power Board 1-1. The whole flowchart which it follows in voltage output state Start check Doesn't the Is it identical Is the Interface screen whole come with Power Off signal operated? out? condition? 1. Check the Power Off 2.
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1-2. 42” Power Board Structure T801: Vs Trans T901: Va Trans T112: Low Voltage Trans T501: ST-BY Trans T601: PFC Inductor - 18 -...
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2. In case of occurring strange screen into specific mode 2-1. In case the OSD does not displayed (1) Symptom 1) LED is white. 2) Some discharge on Panel becomes accomplished continuously. (2) Check follow Is the LVDS cable Is the LVDS cable Replace the cable.
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2-2. In case of does’t display the screen into specific mode (1) Symptom 1) The screen does not become the display from specific input mode. (RF, AV, Component, RGB, DVI) (2) Check following 1) Check the all input mode should become normality display. 2) Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become normality display from the PIP mode or DW mode.(Re-Check using Swap function) Check the NEC64015(IC701) if the main picture is abnormal, and...
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(5) When Component or RGB-DTV/ PC mode is abnormal Is the CXA2151Q(IC500) Is normal the Input voltage, IIC Replace the IC. normal? Communication and HV sync? Is the MST3362(IC604) Is normal the Input voltage, IIC Replace the IC. normal? Communication and HV sync? Is normal the Input voltage, IIC Is the Scaler normal? Replace the IC.
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3. When sound is abnormal (1) Symptom 1) LED is green. 2) Screen display but sound is not output. (2) Check following Is the SPK cable Is the SPK cable Replace SPK cable. normal? connected well? Cable inserts well. Is the Flat cable Cable inserts well.