LG Electronics 32LC2D(B), 37LC2D(B), 42LC2D(B) service manual No image

Page 24

Manual background

No image	Is the	YES	Is the input cable		NO	Attach the input
No image	Set ON?		attached?			cable(s)
	Set ON?		attached?			cable(s)
	NO		YES
	Push the POWER
	ON key		Check the				What is				Power Error
			Condition of all		PASS						Power Error
			Condition of all		PASS
			Connectors, wafers,				the input signal
			I2C In the				mode?				FAIL
			system.
									Check Y,Pb,Pr	FAIL	Check 3.3V
							Component		At L129,128,130	FAIL	At L110 on jack
							Component		At L129,128,130		At L110 on jack
									respectively		board
- 24 -									PASS		PASS
- 24 -				PASS		Check 24bit		PASS			Replace Jack Board
											Replace Jack Board
		Check LVDS							Check Sync_DE
		Check LVDS				RGB at AR700-			Check Sync_DE
		Output of Cortez				RGB at AR700-			Signal at R370
	PASS	Output of Cortez					AR705		Signal at R370
	PASS						AR705
	Check for S/W error		FAIL				FAIL				Replace IC301
	Check for S/W error		FAIL				FAIL
									FAIL		PASS
									FAIL
		Replace Cortez									Check 5V
						Check Power					Check 5V
						Check Power					At L303 on jack
						Levels and crystal					At L303 on jack
						Levels and crystal					board
			PASS								board
			PASS
											FAIL
			Replace Hudson				FAIL
											Power Error
					Power Error

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Contents READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD61A FACTORY NAME 32LC2DB-EC/37LC2DB-EC/42LC2DB-ECBEFORE SERVICING THE CHASSIS SERVICE MANUALCONTENTS CONTENTSPRODUCT SAFETY SPECIFICATIONSAFETY PRECAUTIONS IMPORTANT SAFETY NOTICEGeneral Guidance Leakage Current Hot Check circuitSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement Power Output, Transistor Device Removal/ReplacementSPECIFICATION 1.General SpecificationTV2. General Specification reatment of the front polarizer3.Optical FeatureLCD Module 4.Component Video Input Y, PB, PR5. RGB PC INPUT Mode Table 6. RGB DTV INPUT Mode TableRGB-PC EDID DATA 7. HDMI INPUT Mode Table 8. HDMI DTV Mode TableHDMI EDID DATA 7. Mechanical specification 8. Mechanical specification32LC2D Table 1 Scart Arrangement 1.Full ScartTable 2 Scart Arrangement 2.Half Scart ADJUSTMENT INSTRUCTION 2. Specification1. Application Range 3. Channel Memory5. Select method of Panel size 6. ADC CalibrationBefore AV ADC Calibration, should be executed the Panel size selection7. White Balance Before White-balance, the AV ADC should be doneCase1 EC and FC model use PAL-BGDHI composite signal Cool11000K - x 0.274±0.003, y 0.286±0.003SVC REMOCON FUNTIONTROUBLESHOOTING No image Is the input cable attached?No image PASS No image No image No image No image No image TROUBLESHOOTING AV1, 2, 3, 4/S-Video Volume level OfAV4/S-Video L/R signal AV1,AV2 ,AV3TROUBLESHOOTING DTV/HDMI-Audio TROUBLESHOOTING RF/Component/PC BLOCK DIAGRAMMain TDFB-G236P DVB/PALWafer FFC WaferBLOCK DIAGRAMJack AUDIO/VI DEO SWCXA2069Q Sound processorEXPLODED VIEW32LC2D 010 020050EXPLODED VIEW PARTS LIST32LC2D DESCRIPTIONEXPLODED VIEW37LC2D EXPLODED VIEW PARTS LIST37LC2D EXPLODED VIEW42LC2D 020080 130030 150 090EXPLODED VIEW PARTS LIST42LC2D REPLACEMENT PARTS LIST MAIN BOARDCAPACITOR DATE 2006. 05 DATE 2006. 05 DATE 2006. 05 DIODEs COIL & CORE & INDUCTOR TRANSISTOR RESISTORsDATE 2006. 05 DATE 2006. 05 DATE 2006. 05 DATE 2006. 05 OTHERs JACK BOARDDATE 2006. 05 DIODEs COIL & CORE & INDUCTORTRANSISTOR RESISTORsDATE 2006. 05 CONTROL BOARD SIDE A/V BOARD IR/LED BOARDPage Page Page Page Page P/NO 38289S0043 Printed in Korea