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LG Electronics 55LA625C-ZA Extspeakeramp, Speaker Out Jack, 2013 S7LR2, 2012 . 11, Extspk, IC1800

Models: 55LA625C-ZA

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EXT_SPEAKER_AMP

EXT_SPEAKER_AMP
			+12V
			L1802	EXT_SPK
			EXT_SPK	EXT_SPK
			EXT_SPK	L1803
				L1803
				BLM18PG121SN1D
				C1806			C1809	C1810	C1811
				0 . 1 u F			C1809	C1810	C1811
				16V			10uF	10uF	0 . 1 u F
				EXT_SPK			25V	25V	16V
		EXT_SPK					OPT	EXT_SPK EXT_SPK
		EXT_SPK
		R1803
AMP_RESET		100		EXT_SPK
				EXT_SPK
				IC1800
				IC1800
		+3.5V_ST	TPA3124D2PWPR
		+3.5V_ST
			PVCCL_1	1	PGNDL_2						EXT_SPK
		R1802		1	24						EXT_SPK
EXT_SPK		10K									C1816
EXT_SPK		10K									100uF
R1800		EXT_SPK									100uF
R1800		EXT_SPK	SD		PGNDL_1						25V
100											25V
100				2
				2	23		EXT_SPK			EXT_SPK	EXT_SPK_L
R1801		C					L1804		EXT_SPK	EXT_SPK	EXT_SPK
R1801		OPT	PVCCL_2		LOUT		22.0uH		R1808	C1812	C1814
10K	B	Q1800					22.0uH		R1808	1uF	0 . 4 7 u F
10K	B	Q1800		3					4.7K	1uF	0 . 4 7 u F
SUB_AMP_MUTE		MMBT3904(NXP)		3	22				4.7K	50V	50V
SUB_AMP_MUTE		MMBT3904(NXP)				C1807				50V	50V
OPT						C1807
		E	MUTE		BSL	0 . 2 2 u F			EXT_SPK	EXT_SPK EXT_SPK
		E	MUTE	4	BSL	50V			EXT_SPK	EXT_SPK EXT_SPK
				4	21	50V			R1809	C1813	C1815
		C1800				EXT_SPK	L1805		R1809	1uF	0 . 4 7 u F
		C1800				EXT_SPK			4.7K	1uF	0 . 4 7 u F
		1uF							4.7K	50V	50V
		1uF	LIN		AVCC_2		22.0uH			50V	50V
		10V					22.0uH
		10V
EXT_AMP_L		EXT_SPK		5	20		EXT_SPK				EXT_SPK_R
		EXT_SPK									C1817
		EXT_SPK									C1817
		EXT_SPK	RIN		AVCC_1						100uF
EXT_AMP_R				6	19						25V
		C1801						R1804			EXT_SPK
		1uF	BYPASS		GAIN0			10K	R1806
		10V	BYPASS	7	GAIN0			OPT	R1806
		10V		7	18			OPT	10K
		EXT_SPK							OPT
		C1804	AGND_1	8	GAIN1
		1uF		8	17
		50V						R1805
			AGND_2		BSR			R1805	R1807
			AGND_2	9	BSR	EXT_SPK		10K	10K
				9	16	EXT_SPK		EXT_SPK EXT_SPK
						C1808		EXT_SPK EXT_SPK
						C1808
			PVCCR_1		ROUT	0 . 2 2 u F
			PVCCR_1	10	ROUT	50V
				10	15
			VCLAMP	11	PGNDR_2
				11	14
		EXT_SPK
		C1802	PVCCR_2	12	PGNDR_1
		1uF		12	13
		50V
		C1803	C1805
		10uF 0 . 1 u F
		25V	16V
		EXT_SPK	EXT_SPK

SPEAKER OUT JACK

	JK1800
	PEJ034 - 01
	EXT_SPK	E_SPRING
	3	E_SPRING
	3
			OPT		EXT_SPK_R
			OPT
			C1818	R1811
			100pF	R1811
			100pF	10K
			50V	10K
			50V	EXT_SPK
				EXT_SPK
	4	R_SPRING
	4
	5	T_SPRING
	5				EXT_SPK_L
					EXT_SPK_L
	7B	B_TERMINAL2		OPT	R1812
	7B			C1819
				C1819
			+3.3V_Normal	100pF	10K
	6B	T_TERMINAL2	+3.3V_Normal	50V	EXT_SPK
		T_TERMINAL2		50V	EXT_SPK

			EXT_SPK
			R1813
			68K	R1815
				R1815
				100
				EXT_SPK	EXT_SPK_DET
				EXT_SPK
			R1814
			4.7K
			OPT

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

							2013 S7LR2																	2012 . 11 . 12


							EXT_SPK																	18

Copyright © 2013 LG Electronics. Inc. All rights reserved.	LGE Internal Use Only
Only for training and service purposes

Image 35

LG Electronics 55LA625C-ZA Extspeakeramp, Speaker Out Jack, 2013 S7LR2, 2012 . 11, Extspk, LGE Internal Use Only, IC1800

Contents

MODEL 55LA625C 55LA625C-ZA SERVICE MANUALREAD THE SAFETY PRECAUTIONS IN THIS MANUAL LED TVLGE Internal Use Only Only for training and service purposesCopyright LG Electronics. Inc. All rights reservedLeakage Current Cold CheckAntenna Cold Check SAFETY PRECAUTIONSGeneral Guidance Before returning the receiver to the customerElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSRemoval IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application rangeOnly for training and service purposes SpecificationSymbolrate 4.0Msymbols/s to 7.2Msymbols/s Interactive mode support5.3. RGB Input PC - FHD Model 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR 5.2. RGB Input PC - HD ModelPCDVI 5.3. HDMI InputPC/DTV3. Main PCB check process ADJUSTMENT INSTRUCTION1. Application Range 2. Designation3.3. EDID data After downloading, have to adjust Tool Option again3.1. ADC Process 3.2. EDID Download3.4 Function Check 4. Total Assembly line process4.1. White Balance adjustment 4.5. Outgoing condition Configuration 5. GND and HI-POT Test6. Model name & Serial number D/L 6.1. Signal Table7.2. CI+ Key Download 7. CI+ key download6.3. Method & notice 7.1. Communication Prot connection8.2. IR OUT 8. Check Commercial Features8.1. External speaker8OHM, 1W, Single-End Only for training and service purposes TROUBLE SHOOTING GUIDE1. Check the booting Voltage 2. Digital TV VideoCopyright 3. Analog TV Video4. AV Video Only for training and service purposesCopyright 5. RGB Video6. HDMI Video Only for training and service purposesCopyright 7. Audio of All iput8. TV Audio Only for training and service purposesCopyright 9. AV Audio10. RGB Audio Only for training and service purposesTuner DVB- T/C BLOCK DIAGRAMS7LR2 LGE211A-T8 EXPLODED VIEW Copyright 2013 LG Electronics. Inc. All rights reserved Only for training and service purposes2013 S7LR2 2012 . 11VDDC SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESFILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS Only for training and service purposes+3.3VNormal780 mA FROM LIPS & POWER B/DPowerDET +1.5VDDRNTP-7500L IC501Only for training and service purposes THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETICOnly for training and service purposes LVDS51Pin LVDS Connector For FHD 60Hz 30Pin LVDS ConnectorHDMI2 Only for training and service purposesHDMI EEPROM HDMI1RS - 232C RS232C2013 S7LR2 2012 . 11SIDE USB Only for training and service purposesHEADPHONE RGB PC2012 . 11 Only for training and service purposesS7LRDIVXMS10 2013 S7LR2Only for training and service purposes THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETICTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS2013 S7LR2 EXTSPEAKERAMPSPEAKER OUT JACK Only for training and service purposesOption name of this page CI SLOT because of Hong Kong Only for training and service purposesCI POWER ENABLE CONTROL CI RegionTU2603 GP4RGLOBALTUNERBLOCKOnly for training and service purposes TU2602