Manuals / LG Electronics / TV and Video / Flat Panel Television

LG Electronics 37LC2D(B) BLOCK DIAGRAMJack, Audio/Vi Deo Sw, CXA2069Q, Sound processor, MSP4410K

Models: 37LC2D(B) 42LC2D(B)

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BLOCK DIAGRAM(Jack)

BLOCK DIAGRAM(Jack)

AV Side

Jack Component

SCART RGB

TV out V

CVBS Audio

VLR

YPbPr

AV1

VLR

AUDIO/VI DEO SW

CXA2069Q

Audio LR

Main V/YC

FFC Wafer

VLR,YC

Sub V/YC

AV2 DTV

8Pin Rec ord

MNT VLR

8Pin Rec ord

DTV V_out

TV LR

AV LR

FFC

out

TVout L R

Sound processor

EPF

WaferFFC

MSP4410K

VLR, YC

LR

I2S DTV/HDMI

AV3

Audio LR

MSP_SPDIF

In

IR

WIRE_IR_in

Wafer

WIRE_IR_out

out

IR

PC_RGB

audio

RGB in RGB

LR

I2S

Digital s ound processor

NSP-2110A

Digital AMP

out o Audi

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LG Electronics 37LC2D(B), 32LC2D(B), 42LC2D(B) BLOCK DIAGRAMJack, Audio/Vi Deo Sw, CXA2069Q, Sound processor, MSP4410K

Contents

SERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALCHASSIS LD61A FACTORY NAME 32LC2DB-EC/37LC2DB-EC/42LC2DB-EC BEFORE SERVICING THE CHASSISSPECIFICATION CONTENTSCONTENTS PRODUCT SAFETYLeakage Current Hot Check circuit SAFETY PRECAUTIONSIMPORTANT SAFETY NOTICE General GuidanceElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSPower Output, Transistor Device Removal/Replacement IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement1.General SpecificationTV SPECIFICATIONreatment of the front polarizer 2. General Specification4.Component Video Input Y, PB, PR 3.Optical FeatureLCD Module6. RGB DTV INPUT Mode Table 5. RGB PC INPUT Mode TableRGB-PC EDID DATA 8. HDMI DTV Mode Table 7. HDMI INPUT Mode TableHDMI EDID DATA Table 1 Scart Arrangement 1.Full Scart 7. Mechanical specification8. Mechanical specification 32LC2DTable 2 Scart Arrangement 2.Half Scart 3. Channel Memory ADJUSTMENT INSTRUCTION2. Specification 1. Application RangePanel size selection 5. Select method of Panel size6. ADC Calibration Before AV ADC Calibration, should be executed theCool11000K - x 0.274±0.003, y 0.286±0.003 7. White BalanceBefore White-balance, the AV ADC should be done Case1 EC and FC model use PAL-BGDHI composite signalFUNTION SVC REMOCONTROUBLESHOOTING No image attached? Is the input cableNo image PASS No image No image No image No image No image AV1,AV2 ,AV3 TROUBLESHOOTING AV1, 2, 3, 4/S-VideoVolume level Of AV4/S-Video L/R signalTROUBLESHOOTING DTV/HDMI-Audio TROUBLESHOOTING RF/Component/PC FFC Wafer BLOCK DIAGRAMMainTDFB-G236P DVB/PAL WaferSound processor BLOCK DIAGRAMJackAUDIO/VI DEO SW CXA2069Q010 020050 EXPLODED VIEW32LC2DDESCRIPTION EXPLODED VIEW PARTS LIST32LC2DEXPLODED VIEW37LC2D DESCRIPTION EXPLODED VIEW PARTS LIST37LC2D020080 130030 150 090 EXPLODED VIEW42LC2DDESCRIPTION EXPLODED VIEW PARTS LIST42LC2DMAIN BOARD REPLACEMENT PARTS LISTCAPACITOR DATE 2006. 05 DATE 2006. 05 DATE 2006. 05 DIODEs COIL & CORE & INDUCTOR RESISTORs TRANSISTORDATE 2006. 05 DATE 2006. 05 DATE 2006. 05 DATE 2006. 05 JACK BOARD OTHERsCAPACITOR DATE 2006. 05 COIL & CORE & INDUCTOR DIODEsRESISTORs TRANSISTORDATE 2006. 05 CONTROL BOARD OTHERsIR/LED BOARD SIDE A/V BOARDPage Page Page Page Page Printed in Korea P/NO 38289S0043