LG Electronics 32LS679C-ZC service manual Usb Side, USB1DIODES, USB2DIODES, LGE Internal Use Only

Page 23

USB (SIDE)

USB (SIDE)

JK1450-*1

USB_1_32LS3500

LG		1
345-ZC-H-	USB DOWN	2
3AU04S-	STREAM	4 3
		5

USB1_DIODES

EAN61849601

L1451-*1

IC1450

AP2191DSG

MLB-201209-0120P-N2

120-ohm

NC

GND

+5V_USB

L1451

8

1

CIS21J121

OUT_2

$0.077

IN_1

7

2

OPT

OPT

C1452

R1458

C1453

2K

R1459

OUT_1

IN_2

10uF

1/8W

2K

C1451

6

3

10V

0.1uF

5%

1/8W

5%

22uF

FLG

EN

+3.3V_Normal

16V

5

4

R1455

4.7K

OPT

USB1_CTL

R1454

10K

JK1450

R1451

47

USB1_OCD

USB_1_NORMAL

ZC-305-(LG)

USBDOWN

2 1

SIDE_USB1_DM

3AU04S-

STREAM

34

SIDE_USB1_DP

5

D1451

RCLAMP0502BA

OPT

JK1451-*1

USB_2_32LS3500

-H-LG	USB	1
3AU04S-345-ZC	DOWN STREAM	4 3 2
		5

USB2_DIODES

USB_2

EAN61849601

L1450-*1

IC1451

MLB-201209-0120P-N2

AP2191DSG

120-ohm

+5V_USB

USB_2_BEAD_MAG

NC

GND

L1450

8

1

CIS21J121

OUT_2

$0.077

IN_1

USB_2_BEAD_SS

7

2

USB_2

USB_2

OPT

OPT

C1454

R1450

R1452

OUT_1

IN_2

10uF

C1455

2K

2K

6

3

10V

0.1uF

1/8W

1/8W

C1450

5%

5%

22uF

FLG

EN

+3.3V_Normal

16V

5

4

USB_2

OPT

R1457

4.7K

USB2_CTL

USB_2

R1456

10K

JK1451

R1453

47

USB2_OCD

USB_2_NORMAL

USB_2

ZC-305-(LG)

USBDOWN

2 1

SIDE_USB2_DM

3AU04S-

STREAM

34

SIDE_USB2_DP

5

D1450

RCLAMP0502BA

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.

GP4_S7LR210/08/13

USB_OCP_DIODE 7

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

Image 23

Contents http//aic.lgservice.com CHASSIS LD21BSERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALSPECIFICATION CONTENTSSAFETY PRECAUTIONS SERVICING PRECAUTIONSIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSRemoval IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement3. Test method SPECIFICATION4. Model General Specification 1. Application rangeDVB-S QPSK 2 ~ 45Msymbol/s Symbolrate 4.0Msymbols/s to 7.2Msymbols/ssymbolrate DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s5.2. RGB Input PC 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR PCDVI 5.3. HDMI InputPC/DTV2. Designation ADJUSTMENT INSTRUCTIONBoot file Download 1. Application Range7. ADC Calibration 3.1. ADC Process3.3. EDID data 3.2. EDID Download3.4 Function Check 4. Total Assembly line process4.1. Adjustment Preparation 6. Model name & Serial number D/L 4.3. Outgoing condition Configuration6.1. Signal Table 5. HI-POT TestGP4LOW 7. MAC Address & CI+ key download6.3. Method & notice 7.1 MAC Address7.3. LAN PORT INSPECTIONPING TEST 7.2 LAN Inspectionח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲLG2111 A BLOCK DIAGRAMRear SideEXPLODED VIEW for SYSTEM EEPROM GP4LS7LR22011.12.01Copyright 2012 LG Electronics. Inc. All rights reserved to delete CI or gate forDDR3 Normal PowerVDDC Normal+1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormalIR/LED and control for normal models USB2DIODES USB SIDEUSB1DIODES HDMI FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RGB-PC / SPDIFTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONFor Comsumer model, use 4PIN Wafer RS-232CCOMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTION LVDS for large inch H5TQ1G63DFR-H9C S7LR2DIVXMS10GP4LS7LR22011/06/03 DDR25612 IC1201SFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG Serial Flash for SPI bootSFLASHMAINMACRONIX HEAD Headphone *Option HEADPHONEPHONE 10067972-0500LF CI RegionOption name of this page CISLOT because of Hong Kong ETHERNET H/W option ETHERNETGP4LS7LR22011/06/14 ETHERNET21 TDSQ-G001D GP4RGLOBALTUNERBLOCKTU2602TU2603 TDSS-G101D TDSN-G301D TU2601DCDCGND and AGND are connected DVB-S2 LNB Part AllegroOptionLNB GP4LS7LR22011/11/02 DVBS27PSC008-01 SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 JK2801AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Content Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page Error symptomA2 Check Power Board 24v output A. Video errorLCD TV Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cableor 24V… voltages of PowerCheck various Board 3.5V,12V,20VSignal 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 Link Cable A8/ A9Check color by input -External Input COMPONENT -RGB ※ CheckCheck color condition by input -External Input -Component RGB External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Connect other external device and cableMeasure voltage of each output of Power B/D B. Power errorCheck Power LED Check Power On ‘”High”POWEROFFCPUABNORMAL Check Power Off ModeIf Power Off mode is not displayed Check Power B/D voltage POWEROFFABNORMAL1Check audio B+ C. Audio error24V of Power Check user menu Speaker offCheck audio B+ Voltage In case of External Input signal error Check and fix external deviceCheck & Repair D. Function error1. Remote controlR/C operating error Replace Main B/D Check input signalY Check technical Signal information input? - Fix information Recognition errorIdentify nose type E. NoiseF. Exterior defect