Service manual

ManualsBrandsZenith ManualsTVZ32LC6D - 720p LCD HDTV

PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : PB11K

MODEL : 50PT490B 50PT490B-SA

MODEL : 50PT490B 50PT490B-SD

North/Latin America http://aic.lgservice.com

Europe/Africa http://eic.lgservice.com

Asia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in Korea

P/NO : MFL66986913 (1106-REV00)

Summary of content (70 pages)

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Internal Use Only North/Latin America Europe/Africa Asia/Oceania http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com PLASMA TV SERVICE MANUAL CHASSIS : PB11K MODEL : 50PT490B MODEL : 50PT490B 50PT490B-SA 50PT490B-SD CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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CONTENTS CONTENTS ............................................................................................................................... 2 SAFETY PRECAUTIONS ...........................................................................................................3 SPECIFICATION.........................................................................................................................4 ADJUSTMENT INSTRUCTION ............................................................................
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SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Exploded View. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
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SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application Range (1) This spec sheet is applied all of PDP TV with PB11K chassis. Model Name Market Brand 50PT490B-SA Brazil / chile / Peru / Venezuela / Costarica / Uruguay LG 50PT490B-SD 2. Specification Each part is tested as below without special appointment.
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4. General Specification No Item 1. Receiving System 2. Available Channel Specification Remark 1) SBTVD / NTSC / PAL-M / PAL-N PW350B, PV550B, PT250B, PT350B 2) DVB-T PW350E, PV550E, PT250E, PT260E 1) VHF : 02~13 PW350B, PV550B, PT250B, PT260E 2) UHF : 14~69 3) DTV : 07-69 (VHF high/UHF) 4) CATV : 02~135 1) VHF : 02~13 PW350E, PV550E, PT250E, PT260E 2) UHF : 14~69 3) DTV : 14~69 (UHF) 4) CATV : 02~135 3. Input Voltage 4.
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ADJUSTMENT INSTRUCTION 1. Application Range 4. PCB Assembly Adjustment This spec. sheet applies to PB11K Chassis applied PDP TV all models manufactured in TV factory. 4-1. Using RS-232C - Adjust 3 items at 3-1 PCB assembly adjustments “ (3) Adjustment sequence” one after the order. 2. Specification (1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument.
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5. Factory Adjustment PU11A / PB11A : USE INTERNAL ADC(S7R) : using internal pattern. 5-1. Auto Adjust Component 480i/1080p RGB 1080p (1) Summary : Adjustment component 480i/1080i and RGB 1080p is Gain and Black level setting at Analog to Digital converter, and compensate the RGB deviation (2) Using instrument 1) Adjustment remocon, 801GF(802B, 802F, 802R) or MSPG925FA pattern generator (It can output 480i/1080i horizontal 100 % color bar pattern signal, and its output level must setting 0.7 V ± 0.
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EDID data (Model name = LG TV) HDMI-1 EDID table(2D HD) - North America & South Centural America (PT350B, PT250B/E, PT260E/PT490/U/R) 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 15 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 01 01 01 01 30 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 40 36 00 40 84 63 00 00 1C A0 0F 20 00 31 58 1C 20 50 28 80 11 00 BC 39 20 00 00 00 00 00 00 FD 00 3A 60 3E 1E 53 10 00 0A 20 20 20 20 20 20
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HDMI-3 EDID table(2D HD) - North America & South Centural America (PT350B, PT250B/E, PT260E/PT490/U/R) 0 1 2 3 4 5 6 7 8 9 A B C D E (2) Connection Diagram (Auto Adjustment) 1) Using Inner Pattern F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 15 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26 20 0F 50 54 A1 08 00 31 40 45 40 61 40 01 01 01 01 30 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 40 36 00 40 84 63 00 00 1C A0 0F 20 00 31 58 1C 20 50 28 80 11 00 BC 39 20 00 00 00 00 00 00 FD 00 3A 60 3E
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V RS-232C COMMAND(Commonly apply) (4) White Balance Adjustment (Manual adjustment) 1) Test Equipment: CA-210 - Using PDP color temperature, Color Analyzer (CA210) must use CH 10, which Matrix compensated (White, Red, Green, Blue compensation) with CS2100. See the Coordination bellowed one. 2) Manual adjustment sequence is like bellowed one. - Turn to “Ez-Adjust” mode with press ADJ button of service remocon. - Select “10.Test Pattern” with CH+/- button and press enter. Then set will go on Heat-run mode.
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6. Test of RS-232C control. - Press In-Start button of Service Remocon then set the “4.Baud Rate” to 115200. Then check RS-232C control and 9. POWER PCB Ass’y Voltage Adjustment (Va/Vs Voltage Adjustment) (1)Test equipment : D.M.M 1EA (2) Connection Diagram for Measuring : refer to fig.1 7. Selection of Country option. - Selection of country option is allowed only North American model (Not allowed Korean model). It is selection of Country about Rating and Time Zone.
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10-3. Temperature Threshold Threshold Down Low V Threshold Up Low V Threshold Down High V Threshold Up High V 12. USB DOWNLOAD (*.epk file download) 20 23 70 75 V Put the USB Stick to the USB socket Press Menu key, and move OPTION V Press “FAV” Press 7 times. V Select download file (epk file) V After download is finished, remove the USB stick. V Press “IN-START” key of ADJ remote control, check the S/W version. V 11.
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EXPLODED VIEW IMPORTANT SAFETY NOTICE 920 910 900 501 A32 A12 A20 A19 570 A18 * Set + Stand Pole A2 300 120 LV1 * Stand Base + Stand Pole 304 302 A4 A31 203 301 202 303 A8 207 204 201 205 305 580 206 208 200 590 240 209 602 520 601 400 Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and EXPLODED VIEW.
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S7R-Multi(Brazil) S7 IC Configuration IC101-*1 LGE101DC-R [S7R DIVX/MS10] +3.3V_AVDD S7R_BR AE1 AF16 AF1 AE3 1K R38 READY AD14 AD3 PWM0 +3.
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IC101 LGE101DC-R-1 [S7R DIVX] MUST BE LINE IMPEADANCE 100 OHM !! F1 3D_RFMODULE_DD F4 3D_RFMODULE_DC E6 A_RX1P IM A_RX1N Y2 A_RX2P SSIF/SIFP A_RX2N SSIF/SIFM C1 CK-_HDMI2 D2 D0-_HDMI2 D1+_HDMI2 E2 E3 D1-_HDMI2 F3 D2+_HDMI2 E1 D2-_HDMI2 DDC_SDA_2 D4 E4 DDC_SCL_2 D5 C259 100 C260 Y1 C252 0.1uF R246 C253 0.
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L323 +1.26V_VDDC BLM18PG121SN1D VDDC VDDC IC101 LGE101DC-R-1 [S7R DIVX] C383 10uF 6.3V C380 0.1uF 16V C304 16V 0.1uF C309 16V 0.1uF C313 16V 0.1uF C321 16V 0.1uF VDDC C328 16V 0.1uF C335 16V 0.1uF C338 16V 0.1uF C353 16V 0.1uF C349 16V 0.1uF C344 16V 0.1uF C341 16V 0.1uF H11 H12 H13 H14 VDDC H15 +1.26V_VDDC +1.26V_MIU1VDDC J12 J13 L321 BLM18SG121TN1D J14 J15 C327 16V 0.1uF C333 16V 0.1uF C340 16V 0.1uF C337 16V 0.1uF C343 16V 0.1uF C346 16V 0.1uF C351 16V 0.1uF C381 10uF 6.
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POWER Wafer 18P 17V Stand-by (5V_ST --> +3.3V ST) MLB-201209-0120P-N2 L511 120-ohm C502 10uF 10V C508 0.1uF 16V C504 100uF 16V C505 10uF 16V +3.3V_ST R504 10K R506 100 RL_ON P500 SMAW200-H18S1 READY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 C513 0.1uF 16V +3.3V_ST +5V_ST +3.3V_ST R502 10K READY 22 ERROR_DET JP505 +5V L507 3A R526 C521 0.1uF 16V R513 19 IC500 EAN58801701 AP2121N-3.3TRE1 VIN 3 2 VOUT C519 0.
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BRAZIL DEMODULATOR V +3.3V EXTERNAL_DEMOD +3.3V_DE L609 MLB-201209-0120P-N2 EXTERNAL_DEMOD READY C691 10uF 6.3V READY C692 0.1uF 16V C693 0.1uF 16V C694 0.1uF 16V EXTERNAL_DEMOD C695 0.1uF 16V EXTERNAL_DEMOD IC600 +1.2V_DE KIA1117ST00 OUT 2 3 R602 10 R2 IN 1 GND/ADJ R601 R1 1.2K +1.2V_DE R633 +3.3V_DE 0.01uF C686 0.
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ST Audio AMP +3.3V R705 10K READY AMP_MUTE R708 0 C B READY Q700 2SC3052 E READY READY EAPD/OUT4B TWARN/OUT4A C703 0.1uF 50V 0 R709 VDD_DIG_1 GND_DIG_1 AC_DET 22 R710 R702 PWRDN 2.2 VDD_PLL R706 2K C700 0.
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+3.3V_ST R871 0 G R800 68K +3.3V_ST R835 READY D B S Q800 BSS83 D801 91K HDMI_CEC_S7 CEC_REMOTE HDMI_JACK S7 R872 0 READY HDMI 1 SIDE HDMI(SMD TYPE) HDMI 2 5V_DET_HDMI_2 5V_HDMI_4 C 5V_HDMI_2 SHIELD B HDMI1 R823 20 $0.47 ->$0.24 19 18 C803 0.1uF 16V HDMI1 R824 3.3K R822 1.8K R828 13 22 5 4 3 2 1 R843 3.3K 16 CEC_REMOTE CK-_HDMI2 HDMI2 E C808 0.
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+3.3V_ST 11 R950 2.7K READY L902 +3.3V R974 SYNC_GND 5 0 R973 DDC_GND READY 16 R917 1K SUB_SCL 7 R947 C924 22 10pF READY SUB_SDA READY 8 C923 10pF READY +3.3V_ST SHILED 6 R946 22 R909 10K DSUB_DET C914 0.1uF 16V D909 30V READY 0 C928 1uF 10V E R914 10K L904 DDC_CLOCK 15 C926 10pF Q901 2SC3052 10K GND_1 10 5 4 C +3.3V_ST V_SYNC 14 C930 10pF R944 22 B DSUB_G- R911 9 3 KEY1 LED_RED BLUE NC 4 R948 4.
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SIDE CVBS 5A [YL]E-LUG 4A [YL]O-SPRING SIDE_CVBS_IN +3.3V D1012 5.6V [RD]CONTACT R1086 10K COMP2_RIN 5C [RD]E-LUG 6H [RD1]E-LUG 5H [RD1]O-SPRING_2 4H [RD1]CONTACT_2 5G [WH1]O-SPRING 4F [RD1]CONTACT_1 5F [RD1]O-SPRING_1 [RD1]E-LUG-S R1036 10K D1011 5.
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USB1 SIDE SWITCH ADDED +3.3V +3.3V Capacitors on VBUSA should be placed as closd to connector as possible. SIDE USB IC1101 AP2191SG-13 R1129 10K SIDE USB NC OUT_2 8 1 7 2 GND R1141 10K READY +5V IN_1 $0.11 +USB1_OCD R1124 C1122 10uF 16V SIDE USB SIDE USB C1116 100uF 16V SIDE USB FLG 3 5 4 IN_2 EN R1145 22 SIDE USB +USB1_CTL C1120 0.
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R1227 1K 1% 1K R1228 1% 0.1uF C1250 1000pF C1249 1K 1% 1% R1225 1K C1248 1000pF 10uF C1246 0.1uF C1245 0.1uF C1244 0.1uF C1243 0.1uF C1242 C1241 0.1uF 0.1uF C1239 0.1uF C1238 0.1uF C1237 C1235 0.1uF C1236 0.1uF C1234 0.1uF 0.1uF C1233 0.1uF C1232 0.1uF C1231 0.1uF C1230 0.1uF C1229 0.1uF C1228 0.1uF C1227 0.1uF 0.1uF C1224 0.1uF C1223 0.1uF C1222 0.1uF C1221 0.1uF C1220 0.1uF C1219 0.1uF C1218 0.1uF C1217 0.1uF C1216 0.1uF C1215 0.
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< KOREA / BRAZIL TUNER > +5V_TU L1303 MLB-201209-0120P-N2 TU_2INPUT_CTRL R1343 RF_SWITCH_CTL 10K TU_2INPUT_CTRL C1302 0.1uF 16V TU_2INPUT_CTRL E Q1306 ISA1530AC1 TU_2INPUT_CTRL R1321 2.2K B TU_2INPUT_CTRL C R1344 10K BTU_2INPUT_CTRL C Q1307 2SC3052 TU_2INPUT_CTRL E USA/KOR_TUNER TU1300 TDTR-T036F C1311 0.
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IC1400 LG8300 A3 BOOT_SEL R1474 P18 P17 R1475 N18 N17 R1472 M18 M17 R1473 L17 R1469 K18 K17 R1470 J18 R1471 J17 H18 R1468 H17 G18 G17 R1467 F18 F17 R1466 R1489 10K N1 N2 100 100 LVDS_CLK_1LVDS_CLK_1+ 100 LVDS_DATA_1_DLVDS_DATA_1_D+ 100 LVDS_DATA_1_ELVDS_DATA_1_E+ 100 100 CLK_XIN TD2P CLK_XOUT TD2N PO_RST_N TCLK2P 100 R1 R2 T2 T1 T3 U3 U1 U2 TB1N 100 B17 LVDS_DATA_2_ELVDS_DATA_2_E+ R1495 3.3K READY R1494 3.3K /JTAG_TRST R1500 3.3K R1499 3.
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Great Company Great People GP2-R GP2-R Training Training manual manual Contents - Block Diagram - System Design - Trouble Shooting Guide ATSC Group GP2‐R Team
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Cable Block Diagram – Overview() X-tal IF ISDB-T/ PAL/NTSC (24MHz) Serial Flash NAND Flash DDR3 SIF LVDS LVDS Con. Con.
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1. Power-Up Boot Fail Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7L S7L I2S_BCM EXT_IN HDMI_D HDMI_C (External Input) USB2.
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S7 Power Sequence Appendix Power Up Sequence Note: 3.3V_AVDD_MPLL (AVDD_DMPLL) Power XTAL t1 1.05V (VDDC) 3.3V AVDD_DMPLL t2 3.3V_VDDP (VDDP) Reset (HI Active) t3 1.5V/1.8V (AVDD_DDR0/1) 1.26V t4 3.3V VDDP 1.5V/1.8V with Other Power Copyright © 2011 LG Electronics Inc. All rights reserved.
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S7 Power Sequence Appendix Power Up Timing Requirements Time Description Min Typ. Max Unit t1 XTAL stable to Reset falling 5 ― ― ms t2 Reset pulse width 5 ― ― ms t3 1.26V to Reset falling 5 ― ― ms t4 3.3VDDP to Reset falling 5 ― ― ms Copyright © 2011 LG Electronics Inc. All rights reserved.
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S7 Power Sequence a) AC On 1 :X-tal 2 : 3.3V 3 : 1.26V 4 : Reset # t1 : Reset Pulse Width : 400ms Æ OK # t3 : Reset Pulse Width : 400ms Æ OK # t4 : Reset Pulse Width : 400ms Æ OK Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes b) DC(Remocon) On 1 :X-tal 2 : 3.3V 3 : 1.
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GP2-R I2C MAP TGPIO2/I2C_CLK TGPIO3/I2C_SDA DDCR_CK/GPIO72 DDCR_DA/GPIO71 TGPIO0 TGPIO1 (R3) (T3) (N22) (M22) (U1) (U2) NVRAM NVRAM HDCP HDCP EEPROM EEPROM 0xA0 0xA0 0xA8 0xA8 AMP AMP TAS5709 TAS5709 0x36 0x36 SATURN 7 TGPIO183 TGPIO177 TUNER TUNER LGIT LGIT HN(LGT10) HN(LGT10) 0xC2(PLL)/0x10(Analog 0xC2(PLL)/0x10(Analog Demod) Demod) CH 6 +3.3V_TU CH 2 +3.3V CH 5 +3.3V DEMOD.(BRAZIL) DEMOD.
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GPIO Structure GPIO Signal Name Direction 66 PWM0 Input Chip configuration 67 PWM1 Input Chip configuration 31 DSUB_DET Input D-Sub Auto link check 32 Model_OPT_3 Input Model option 3 42 Model_OPT_0 Input Model option 0 11 Model_OPT_1 Input/Output Model option 1 /FE_BOOSTER_CTRL 14 Model_OPT_2 Input/Output Model option 2/RF_SWITCH_CTL TCON2/GSP _R/GCLK1 5V_DET_HDMI_2 Input (HDMI3 Ready) HDMI 5V Detect TCON4/CPV //GSC_R/G CLK3 5V_DET_HDMI_4 Input HDMI Side 5V Detect TCO
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GP2-R Power flow 16V_ Audio IC700 $0.72 TAS5709 P_17V 1 2 IC507 MP8706EN +3.3V_AU_AVDD +3.3V_DVDD 5 6 7 8 P_+5V L507 TU1300 Tuner RL_ON 15 AC_DET 16 M_ON 17 13 14 P_+5V IC504 AZ1085S P_+5V IC801/802/804 HDMI eeprom +3.3V IC505 MIC39100 P904 3D LVDS +3.3V IC104 NAND flash P_+5V +3.3V IC IC1201~2 DDR3 +1.05V_VDDC +3.3V +3.3V_AVDD L514 P905 Emitter board +3.3V IC103 Serial flash USB P_+5V L1300 L1201 IC501 MP8706EN +1.05V_VDDC +3.3V IC102 HDCP eeprom AVDD2P5_2.
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Trouble Shooting Guide for LG Service Man Please check system, after power Off/On one time 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
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1. Power-Up Boot Fail Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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1. Power-Up Boot Fail Trouble Shooting Check P500 All Voltage Level (17V, 5V, 3.5/5V_ST) N Y Check Power connector Replace Power board Y Check All Voltage Level at Bead, RL_ON, IC500 output N Replace one of Bead, IC500 & Recheck N If Q501 Output is normal, Replace of the IC504 & Recheck N N Check R527 voltage level (3.3V RL_ON) Replace one of IC501 & Recheck N Y Check Voltage Level 3.3V at IC504, R124(Micom) Y Check Voltage Level 1.
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2. No OSD Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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2.
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No OSD Trouble Shooting (Module Power Sequence) Vcc (5V) TOn TOff TOnR Va TVaF TVaR Vs TVsR DISPEN TVsF Td_on Normal Display Td_off Symbol Description Min. Max.
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Module Control Trouble Shooting “TILT” on Adjust Remocon : PDP internal pattern displays? N PDP Module Power is OK? N Check SMPS & cable SCL Y Y Replace PDP Module SDA PDP Module is OK.
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3. Digital TV Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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3. Digital TV Video Trouble Shooting Check RF Cable Y Check Tuner(TU1300) Power (5.0V, 3.3V, 1.2V) N Replace one of Bead & Recheck Y N Check IF Signal pin #17, 18 Maybe Tuner has problems Y Check Demodulator Power (3.3V, 1.2V) L609, IC600 N Replace L609 / IC600 Y Check Demodulator X-TAL (X602) N Replace X-TAL Y Check TP Clock, Data, Sync R630, R631, R632 N Maybe Demodulator has problems Y Maybe MstarS7(IC100) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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4. Analog TV Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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4. Analog TV Video Trouble Shooting Check RF Cable Y Check Tuner Power (5.0V, 3.3V, 1.2V) N Replace one of L1301/L1300/L1302 & Recheck Y Check CVBS Signal TU1300 #11 Pin N Maybe Tuner(TU1300) has problems Y Check CVBS Signal R1334 N Replace one of R1330/Q1305/R154/C213 & Recheck Y Maybe MstarS7(IC100) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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5. Component Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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5. Component Video Trouble Shooting Check Signal Format Is it supported signal? Y Check Component Cable Y N Check Component Jack JK1001 Replace Jack Y Check Component Signal R1020/R1021/R1022 R1005/R1012/R1013 N Replace one of R1020/R1021/R1022 R1005/R1012/R1013 & Recheck Y Check Component Signal R175/R173/R177 R180/R182/R184 N Replace it Y Maybe Mstar S7(IC100) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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6. RGB Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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6. RGB Video Trouble Shooting Check Signal Format Is it supported signal? Y Check RGB Cable Y N Check RGB Jack P901 Replace Jack Y Check RGB Signal R907,R908,R909 N Replace It & Recheck Y N Replace one of R915/R916 & Recheck N Replace it or re-burn & Recheck Check Sync Signal Y Check EEPROM (IC901) Y Maybe Mstar S7(IC101) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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7. AV Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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7. AV Video Trouble Shooting Check Signal Format Is it supported signal? Y Check AV Cable Y N Check Jack JK1001/JK1002 Replace Jack Y Check CVBS Signal C1016/C1018 N Replace one of C1016/C1018 & Recheck N Replace one of R187/R188/C226/C227 & Recheck Y Check CVBS Signal R187/R188/C226/C227 Y Maybe Mstar S7(IC101) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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8. HDMI Video Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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8. HDMI Video Trouble Shooting Check Signal Format Is it supported signal? Y Check HDMI Cable Y Check HDMI Jack JK803, JK804 N Replace Jack Y Check I2C Signal R844/R845 /R858/R859/R848/R849/R862/R863 N Replace It & Recheck Y Maybe Mstar S7(IC101) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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9. All Source Audio Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_S7 EXT_IN HDMI_D USB2.
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9. All Source Audio Trouble Shooting Make sure you can’t hear any audio Y N Replace Speaker Check Speaker Y N Check Connector P703 Replace Connector Y Check Signal L700, L701 N Replace one of Capacitor, Register & Recheck N Maybe TAS9709 has problems. Replace It Y Check IC700 Power 17V, 3.3V L702,L703 N Replace It & Recheck Y Check Mstar S7 I2S Output R724, R725, R726 N Replace It & Recheck Y Maybe Mstar S7(IC101) has problems Copyright © 2011 LG Electronics Inc. All rights reserved.
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10. Digital TV Audio Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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10. Digital TV Audio Trouble Shooting Check video output N Follow procedure digital TV video trouble shooting N Maybe Mster S7 internal audio DSP has problems. Replace It Y Follow procedure All source audio trouble shooting Copyright © 2011 LG Electronics Inc. All rights reserved.
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11. Analog TV Audio Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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11. Analog TV Audio Trouble Shooting Check video output N Follow procedure analog TV video trouble shooting N Replace one of L1300/L1301/L1302 & Recheck Y Check Tuner Power (5.0V, 3.3V, 1.2V) Y Check SIF Signal TU1300 #9 Pin N Maybe Tuner(TU1300) has problems Y Check SIF Signal N Replace one of C252/R246/R1332/Q1304/R1325 IC501 & Recheck N Maybe Mstar S7 audio block has problems.
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12. Component / RGB / AV Audio Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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12.
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13. HDMI Audio Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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13. HDMI Audio Trouble Shooting N Check video output Follow procedure HDMI video trouble shooting Y N Re-download EDID data Replace IC802, IC804 Y Follow procedure All source audio trouble shooting N Maybe Mstar S7 audio block has problems. Replace it Copyright © 2011 LG Electronics Inc. All rights reserved.
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14. USB Trouble Shooting (System + Scalar) Cable (Front-end) CVBS_LIVE SIF1 ISDB-T/ PAL/NTSC Serial_Flash NANDFlash Serial_Flash NANDFlash 256MB 1MB 256MB 1MB DDR3 DDR3 256MB(128*2) 256MB(128*2) LVDS WXGA/XGA CVBS_LIVE SPDIF TP1 IF Demodulator SIF_LIVE TP1 MN884433 S7 S7 I2S_BCM EXT_IN HDMI_D USB2.
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14. USB Trouble Shooting Check USB 2.0 Cable Y Check USB device If device is 2.5 inch HDD, Check power adaptor Y Check P1102 (250/350 tool) P1100 (230 tool) N Replace Jack Y Check 5V voltage level IC1101 #2 (250/350 tool) L1100 (230 tool) N Replace one of IC1101,L1100 & Recheck Y MaybeMstar S7 (IC101) has problems. Replace It. • Exception - USB power could be disabled by inrushing current - In this case, remove the device and try to reboot the TV (AC power off/on) Copyright © 2011 LG Electronics Inc.