LG Electronics 37LC2R, 42LC2R

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(4) When set doesn’t display normally at RF , AV mode

(5) When set doesn't display nromally at Component, RGB mode

(6) In the case of becomes unusual display from HDMI mode

Yes

Replace IC1200

Is the Input voltage,

IIC Communication and

HV sync normal? No

Is the IC1200

normal?

Replace IC800

Is the Input voltage,

IIC Communication and

HV sync normal? No

Is the IC800

normal?

Replace IC800

Is the Input voltage,

IIC Communication and

HV sync normal? No

Is the IC800

normal?

Yes

Replace IC300

Is the Input voltage,

IIC Communication and

HV sync normal? No

Is the IC300

normal?

Replace IC800

Is the Input voltage,

IIC Communication and

HV sync normal? No

Is the IC800

normal?

Contents

Main CONTENTS SAFETY PRECAUTIONS General Guidance AC Volt-meter Leakage Current Hot Check circuit X-RAY Radiation SERVICING PRECAUTIONS Page 1. Application range 2. Requirement for Test 3. Test method SPECIFICATION 4. General TV Specification 5. General Specification 6. Set Optical Feature 6.1. 37LC2R-TH/42LC2R-TH 6.2. 37LC2R-TH/37LC2R-ZH(Only AUO Module) 7. Model Specification 8. Component Video Input (Y, PB, PR) 9. RGB Input ( PC ) 10. RGB input ( DTV ) 11. HDMI Input ( PC ) 12. HDMI input ( DTV ) 13.1. 37LC2R 13. Mechanical Specification 13.2. 42LC2R ADJUSTMENT INSTRUCTION 1. Application Range 2. Specification 3. Adjustment items 3.1 PCB assembly adjustment items 5. ADC Calibration 5.1 Adjustment of RF/AV/S-VIDEO 5.2 Adjustment of Component. 5.3 Adjustment of RGB 6. White Balance 6.1 Manual white Balance (AV) 6.2 Auto white Balance (AV) 7. Shipping Conditions SVC REMOCON NO KEY FUNTION REAMARK TROUBLESHOOTING 1. No power 2. VSC Board 2-1. No Power 2-2. No Raster - LCD 2-3. In case of occur strange screen into specific mode Page Page 2-4. In case of no sound BLOCK DIAGRAM EXPLODED VIEW (37LC2R) EXPLODED VIEW PARTS LIST(37LC2R) Page Page REPLACEMENT PARTS LIST MAIN BOARD CAPACITOR Page Page Page DIODEs IC COIL & CORE & INDUCTOR Page RESISTORs FET & TRANSISTOR Page Page Page OTHERs CONTROL BOARD PREAMP&LED BOARD SIDE A/V BOARD