AUDIO AMPSTA380BWE | LG Electronics CS26460T-ZA, 26CS460T guide

AUDIO AMP(STA380BWE)

AUDIO AMP(STA380BWE)

+24V+24V_AMP

	L3400
	CIS21J121
						+3.3V_AMP			12				11	10	9	8	7		6	5	4	3		2		1
									12				11	10	9	8	7		6	5	4	3		2		1
	C3400				C3402							NC	NC	NC	NC	NC	NC		NC	NC	NC	NC		NC		NC
	C3400				C3402							NC	NC	NC	NC	NC	NC		NC	NC	NC	NC		NC		NC
	0.1uF				0.1uF				24				23	22	21	20	19		18	17	16	15		14		13
	50V				50V					NC_13		25
						C3403				NC_14		26
						0.1uF				NC_15		27
						0.1uF			VDDDIG1			28
						16V			VDDDIG1			28
									GNDDIG1			29
										FFX3A		30			IC3400
											FFX3B	31			IC3400
+3.3V_Normal				+3.3V_AMP				EAPD/FFX4A				32			STA380BW
						C3404
	L3401					C3404		TWARNEXT/FFX4B				33
						2.2uF
						2.2uF			VREGFILT			34
	BLM18PG121SN1D					10V			AGNDPLL			35										49
																					THERMAL
																					THERMAL
											MCLK	36
								37					38	39	40	41	42		43	44	45	46		47		48
+3.5V_ST					AUD_MASTER_CLK							BICKI	LRCKI	SDI	RESET	PWDN	INTLINE		SDA	SCL	SA	TESTMODE		GNDDIG2		VDDDIG2

12	GND_REG		C3409
11	VDD_REG		0.1uF
11	VDD_REG		16V

10OUT1A

9GND1

8VCC1

7OUT1B

6OUT2A

5VCC2

4 GND2

3 OUT2B

2	VSS_REG		C3408
1	VCC_REG		C3408
1	VCC_REG		0.1uF
			16V
[EP]
	+3.3V_AMP

L3402

10.0uH

R3407	R3408
43	43

C3413 L3403 330pF 10.0uH

50V

L3404

10.0uH

C3414

330pF

50V

R3409	R3410
43	43

L3405

10.0uH

	C3420		C3424
	0.22uF		1000pF
C3418	50V		50V
0.22uF
50V	C3421		C3425
	0.22uF		1000pF
	50V		50V
	C3422		C3426
	C3422		C3426
	0.22uF		1000pF
C3419	50V		50V
0.22uF
50V	C3423		C3427
	0.22uF		1000pF
	50V		50V

SPK_L+

SPEAKER_L

SPK_L-

SPK_R+

SPEAKER_R

SPK_R-

AUD_SCK

NON_LIPS

AUD_LRCK

R3412

10K

AUD_LRCH

NON_LIPS

R3401

10K

NON_LIPS

R3402

NON_LIPS

100

AMP_RESET

R3400

C

R3403

0

NON_LIPS

10K

B

Q3400

C3401

AMP_SDA

0

MMBT3904(NXP)

1000pF

R3404

AMP_MUTE

AMP_SCL

E

50V

OPT

OPT

C3405

C3406

33pF

33pF

50V

50V

LIPS

R3411

0

POWER_DET

C3407

0.1uF

16V

				+24V_AMP


	C3411	C3412	C3415	C3416	C3417
	0.1uF	1uF	1uF	0.1uF	10uF
	50V	50V	50V	50V	35V

SPK_L+

SPK_L-

SPK_R+

SPK_R-

P3400

WAFER-ANGLE

4

3

2

1

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.

GP4L_S7LR22011/11/16

AMP_STA380BWE 34

Copyright © 2012 LG Electronics. Inc. All rights reserved.	LGE Internal Use Only
Only for training and service purposes

Image 29

LG Electronics CS26460T-ZA, 26CS460T AUDIO AMPSTA380BWE, GP4LS7LR22011/11/16 AMPSTA380BWE, LGE Internal Use Only

Contents

SERVICE MANUAL CHASSIS LD21CREAD THE SAFETY PRECAUTIONS IN THIS MANUAL http//aic.lgservice.com SAFETY PRECAUTIONS CONTENTSSERVICING PRECAUTIONS SPECIFICATION IMPORTANT SAFETY NOTICE SAFETY PRECAUTIONS Electrostatically Sensitive ES Devices SERVICING PRECAUTIONS Replacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Removal 4. Model General Specification SPECIFICATION1. Application range 3. Test method symbolrate Symbolrate 4.0Msymbols/s to 7.2Msymbols/sDVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s DVB-S QPSK 2 ~ 45Msymbol/s 5.2. RGB Input PC - LS35/LS34/CS46 series models are not supported 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR PCDVI 5.3. HDMI InputPC/DTV Boot file Download ADJUSTMENT INSTRUCTION1. Application Range 2. Designation 3.3. EDID data 3.1. ADC Process3.2. EDID Download 7. ADC Calibration 3.4 Function Check 4. Total Assembly line process4.1. Adjustment Preparation 4.2. EYE-Q function check 4.5. Outgoing condition Configuration4.3. 3D function test 4.4. IR emitter inspection 5. HI-POT Test 6.1. Signal Table6. Model name & Serial number D/L 5.1. HI-POT auto-check preparation 7.1 MAC Address 7. MAC Address & CI+ key download7.2 LAN Inspection 7.3. LAN PORT INSPECTIONPING TEST Side RearLG2111 A IC101 LS350T/CS460T Applied Model **LM580T, **560T, **LS350T, **CS460TTDSN G301D G001D 560S, **LS350S, **CS460SLS350S/CS460S EXPLODED VIEW PowerDET FROM LIPS & POWER B/D+3.3VNormal +1.5VDDR 51Pin LVDS Connector For FHD 60Hz LVDS for large inch30Pin LVDS Connector FOR FHD REVERSE10bit GP4LS7LR22011/06/03 DDR25612 S7LR2DIVXMS10IC1201 H5TQ1G63DFR-H9C GP4LS7LR2 Serial Flash for SPI boot2011/06/03 SFLASH1MB 10067972-0500LF CI RegionOption name of this page CISLOT because of Hong Kong ETHERNET H/W option ETHERNETGP4LS7LR22011/06/14 ETHERNET21 IR/CONTROLW/OIROUT IR/LED and control for on.y ’12 sub without IR-OUT TU2602TU2603 TDSS-G101D TDSN-G301D GP4RGLOBALTUNERBLOCKTU2601 TDSQ-G001D OptionLNB DVB-S2 LNB Part AllegroGP4LS7LR22011/11/02 DVBS27 DCDCGND and AGND are connected GP4LS7LR22011/11/16 AMPSTA380BWE AUDIO AMPSTA380BWE NAND FLASH MEMORY VDDC Normal PowerNormal DDR3 USB1DIODES USB SIDE HDMI1 HDMI2EANON SIDE HDMIFor CEC HDMI2 COMPONENT Full ScartSCART AUDIO OUT SCART AUDIO MUTE GP4LS7LR22011/09/26 RS-232C 4PIN MSTAR DEBUG4PIN MSTART DEBUG4PIN2011/09/05 Page Contents of LCD TV Standard Repair Process Continue to the next page Contents of LCD TV Standard Repair Process Detail Technical ManualError symptom Content LCD TV A. Video errorMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A2 Check Power Board 24v output Check various voltages of PowerBoard 3.5V,12V,20V or 24V… Signal Quality Normal over 50% By using Digital signal level meter By using Diagnostics menu on OSDMenu→ Set up→ Support → Signal Test Signal strength Normal over 50% → Set-Top-Box, Different maker TV etc Check color by input -External Input COMPONENT -RGB A8/ A9※ Check Link Cable Vertical/Horizontal bar, residual image, light spot External device screen error-Color errorConnect other external device and cable Check color condition by input -External Input -Component RGB Check Power LED B. Power errorCheck Power On ‘”High” Measure voltage of each output of Power B/D If Power Off mode is not displayed Check Power B/D voltage Check Power Off ModePOWEROFFABNORMAL1 POWEROFFCPUABNORMAL 24V of Power C. Audio errorCheck user menu Speaker off Check audio B+ Check audio B+ Voltage In case of External Input signal error Check and fix external device Check & Repair D. Function error1. Remote controlR/C operating error Y Check technical Signal information input? - Fix information Check input signalRecognition error Replace Main B/D Identify nose type E. Noise F. Exterior defect