Samsung LA22B350F2 Service Manual Download Page 35 | Manualshive

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4-9

4. Troubleshooting

4-1-5. No Picture (Video_CVBS)

Symptom

Audio is normal but no picture is displayed on the screen.

-

Major

checkpoints

Check the Video Source

Check the M-star

This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.

-
-
-

Diagnostics

LA22B350F2

LA22B450C8

No

Check a connection harness.

No

Power Indicator is off.

Lamp on, no picture.

Yes

Does the signal appear at C4025 of

IC4000?

Check a LVDS cable ?

Replcelcd panel?

Please, Call to Samsung Co. LTD.

Yes

Check a A/V cable and video signal.

Yes

1

2

Caution

Make sure to disconnect the power before working on the IP board.

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Summary of Contents for LA22B350F2

Page 1: ...he service manual in the GSPN see the rear cover for the more information Chassis N66F Model LA22B350F2 LA22B450C8 1 Precautions 2 Product specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 Exploded View Part List 6 Wiring Diagram LA22B350F2 ...

Page 2: ... 1 3 1 Disassembly and Reassembly LA22B350F2 3 1 3 2 Disassembly and Reassembly LA22B450C8 3 4 4 Troubleshooting 4 1 4 1 Troubleshooting 4 1 4 2 Alignments and Adjustments 4 13 4 3 Factory Mode Adjustments 4 14 4 4 White Balance Calibration 4 24 4 5 HOW TO UPGRADE 4 26 5 Exploded View Part List 5 1 5 1 LA22B350F2 Exploded View 5 1 5 2 LA22B450C8 Exploded View 5 3 5 3 LA22B350F2 Parts List 5 5 5 4 ...

Page 3: ...urope samsungportal com China http china samsungportal com Asia http asia samsungportal com Mideast Africa http mea samsungportal com This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2009 Samsung Electronics Co Ltd All rights reserved Printed in Korea P N BN82 00598A 00 ...

Page 4: ... electrostatically sensitive devices Use caution when handling these components 3 1 Disassembly and Reassembly LA22B350F2 Cautions 1 Disconnect the LCD TV from the power source before disassembly 2 Follow these directions carefully never use metal instruments to pry apart the cabinet Description Picture Description Screws 1 Place the TV face down on cushioned table Remove the screws from rear cove...

Page 5: ...3 2 3 Disassembly and Reassembly Description Picture Description Screws 2 Remove the screws from the Stand Remove stand x 3 3 Disconnect cable from the boards ...

Page 6: ... Disassembly and Reassembly Description Picture Description Screws 4 Remove the Speaker 5 Remove Screw from the the boards x 8 x 2 x 1 Reassembly procedures are in the reverse order of disassembly procedures ...

Page 7: ... LA22B450C8 Cautions 1 Disconnect the LCD TV from the power source before disassembly 2 Follow these directions carefully never use metal instruments to pry apart the cabinet Description Picture Description Screws 1 Remove the screws from the Stand Remove stand x 2 ...

Page 8: ...3 5 3 Disassembly and Reassembly Description Picture Description Screws 2 Place the TV face down on cushioned table Remove the screws from rear cover x 5 3 Disconnect cable from the boards ...

Page 9: ... Disassembly and Reassembly Description Picture Description Screws 4 Remove the Speaker 5 Remove Screw from the the boards x 8 x 1 x 2 Reassembly procedures are in the reverse order of disassembly procedures ...

Page 10: ...5 1 5 Exploded View Part List 5 Exploded View Part List 5 1 LA22B350F2V Exploded View T0003 M0215 M0014 M0174 M0027 M0013 T0175 ...

Page 11: ...HB BK500 1 SA M0014 BN94 02998A ASSY PCB MAIN LA22B350F2XXZ 1 SA M0027 BN96 11238A ASSY STAND P BASE LB350 22 ABS PMMA HB B 1 SA M0174 BN44 00302A AC VSS I IP 55145T L650 1 9 2 9mA 8 2 9 1 SA M0215 BN07 00744A LCD PANEL T216HA01 DB LM216HA 6bit Hi FR 1 SA T0003 BN96 11230D ASSY COVER P FRONT LB350 22 ABS PMMA HB 1 SA T0175 BN96 11276A ASSY SPEAKER P 16ohm 4pin 3W L350 22 1 SA ...

Page 12: ... Vinyl T0 04 150mm 20 0 8 SNA 3 BN63 05885A COVER STAND BASE LB350 22 ABS PMMA HB BK 1 SNA 3 AR011 BN73 00077A RUBBER FOOT MATISSE BUMPON 13 5 T2 0 60 4 SNA 0 1 BN91 04215D ASSY LCD CHILIN BN07 00744A 1 SNA 2 M0215 BN07 00744A LCD PANEL T216HA01 DB LM216HA 6bit Hi FR 1 SA 0 1 M0017 BN91 04246A ASSY CHASSIS LA22B350F2XXZ 1 SNA 2 M0014 BN94 02998A ASSY PCB MAIN LA22B350F2XXZ 1 SA 3 0202 001463 SOLDE...

Page 13: ...9 1205 003695 IC LCD CONTROLLER SEMS03 LF PQFP 296P 32 1 SA 4 1405 001185 VARISTOR 24Vdc 1 6x0 8x0 36mm TP 1 SA 4 1405 001233 VARISTOR 30Vdc 5A 1 6x0 8x0 8mm TP 8 SA 4 DR1 2007 000043 R CHIP 1Kohm 1 1 10W TP 1608 2 SA 4 PR4 2007 000052 R CHIP 10Kohm 1 1 10W TP 1608 2 SA 4 PR6 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 2 SNA 4 AR30 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 SA 4 AR150 2007 000078 R ...

Page 14: ...5 3 SA 4 C395 2203 000260 C CER CHIP 10nF 10 50V X7R 2012 1 SNA 4 C254 2203 000438 C CER CHIP 1nF 10 50V X7R TP 1005 7 SA 4 C507 2203 000489 C CER CHIP 2 2nF 10 50V X7R TP 1005 4 SA 4 MC9 2203 000627 C CER CHIP 022nF 5 50V C0G TP 1005 2 SNA 4 AC109 2203 000783 C CER CHIP 0 33nF 5 50V C0G 1608 3 SA 4 DC25 2203 000812 C CER CHIP 033nF 5 50V C0G 1005 3 SA 4 ZC165 2203 000815 C CER CHIP 0 033nF 5 50V ...

Page 15: ... 3701 001591 CONNECTOR HDMI 19P 2ROW FEMALE SMD S AU 1 SNA 4 R133 2007 007651 R CHIP 9 1Kohm 1 1 10W TP 1608 1 SA 4 IC012 1203 003700 IC POSI ADJUST REG LD1117ADT R DPAK 3P 2 SA 3 CIS3 BN40 00142B TUNER TCPS3001PD11S H TCPS3001PD11S H 1 SA 3 T0066 BN62 00042A HEAT SINK ES 30 30 5 Ceramic T1 5 TAPE 1 SNA 0 1 BN91 04247A ASSY SHIELD LA22B350F2XXZ 1 SNA 2 T0081 6001 000321 SCREW MACHINE FH M3 L10 NI ...

Page 16: ...K 2 SA 4 6902 000683 BAG ZIPPER LDPE T0 05 W60 L60 TRP 4 PE M 1 SNA 3 T0268 3903 000082 CBF POWER CORD DT CN IP3 YES A 3P_Lug 2 1 SA 3 T0074 BN59 00880A REMOCON DLP CRT TM940 CHINA 39 92g 1 SA 3 T0527 BN68 00513A LABEL E PASS ALL MODEL YUPO 110G 50X15 1 SNA 3 T0524 6902 001107 BAG PE LDPE T0 05 W450 L400 TRP 0 3Separ 1 SNA 3 BN43 00004A BATTERY BM1L BATTERY MN 600mAh 7 9g 2 SNA 2 BN96 15056A ASSY ...

Page 17: ...tandards Institute ANSI C101 1 Leakage Current for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe conduit etc and all exposed metal parts including metal cabin...

Page 18: ...ground lead last 1 3 Electrostatically Sensitive Devices ESD Precautions Some semiconductor solid state devices can be easily damaged by static electricity Such components are commonly called Electrostatically Sensitive Devices ESD Examples of typical ESD are integrated circuits and some field effect transistors The following techniques will reduce the incidence of component damage caused by stati...

Page 19: ...m being exposed to moisture Otherwise it may cause a fire or electric shock Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product Also check the antenna cable or the external connectors if they are fully unplugged Damage to the cord may cause fire or electric shock Keep the antenna far away from any high voltage cables and install it firmly Cont...

Page 20: ...1 4 1 Precautions Memo ...

Page 21: ... p 5 positive at 75Ω internally terminated Input Sync Signal H V Separate TTL P or N Maximum Pixel Clock rate 85 5MHz Active Display Horizontal Vertical 477 417 H x 268 416 V mm AC power voltage Frequency AC 110V 240V 50 60Hz Power Consumption 50W 1W stand by Dimensions 21 9 x 8 0 x 16 7 inchs 557 5 x 202 5 x 484 8 mm _with stand 21 9 x 3 5 x 15 3 inchs 557 5 x 88 8 x 387 7 mm _without stand Set W...

Page 22: ...ally terminated Input Sync Signal H V Separate TTL P or N Maximum Pixel Clock rate 85 5MHz Active Display Horizontal Vertical 477 417 H x 268 416 V mm AC power voltage Frequency AC 110V 240V 50 60Hz Power Consumption 50W 1W stand by Dimensions 21 9 x 6 8 x 16 6 inchs 557 8 x 171 9 x 422 9 mm _with stand 21 9 x 3 2 x 15 1 inchs 557 8 x 81 3 x 384 2 mm _without stand Set W x D x H Weight Set 9 33 lb...

Page 23: ...7 585 25 UHF T 277 25 SUPER T 276 00 T 277 25 34 34 593 591 25 UHF U 283 25 SUPER U 282 00 U 283 25 35 35 599 597 25 UHF V 289 25 SUPER V 288 00 V 289 25 36 36 605 603 25 UHF W 295 25 SUPER W 294 00 W 295 25 37 37 611 609 25 UHF AA 301 25 HYPER AA 300 00 AA 301 25 38 38 617 615 25 UHF BB 307 25 HYPER BB 306 00 BB 307 25 39 39 623 621 25 UHF CC 313 25 HYPER CC 312 00 CC 313 25 40 40 629 627 25 UHF ...

Page 24: ...9 25 91 91 91 625 25 ULTRA 91 624 00 91 625 25 92 92 92 631 25 ULTRA 92 630 00 92 631 25 93 93 93 637 25 ULTRA 93 636 00 93 637 25 94 94 94 643 25 ULTRA 94 642 00 94 643 25 95 95 A 5 91 25 FM A 5 90 00 A 5 91 25 96 96 A 4 97 25 FM A 4 96 00 A 4 97 25 97 97 A 3 103 25 FM A 3 102 00 A 3 103 25 98 98 A 2 109 25 MID A 2 108 00 A 2 109 25 99 99 A 1 115 25 MID A 1 114 00 A 1 115 25 100 100 100 649 25 UL...

Page 25: ...een Size 22 22 Picture ratio 16 9 16 9 Dimensions W x H x D 21 9 x 16 7 x 8 0 inchs_with stand 22 0 x 17 2 x 8 5 inchs_with stand Weight B350 8 82 lbs_with stand B450 9 33 lbs_with stand 14 33 lbs_with stand Brightness 300 nit 400 nit Contrast Ratio 800 1 800 1 Picture Enhacer DNIe Lola3 DNIe FBE3 Equalizer O O Auto Motion Plus 100Hz X X Surround Sound 2 Way SRS TruSurround Dolby Digital 3 Way SRS...

Page 26: ...RAZIL BN59 00880A CHINA BN59 00888A M EAST ASIA BN59 00889A LATIN AMERICA Samsung Electronics Service center Power Cord 3903 000172 Owner s Instructions BN68 02101L Warranty Card Registration Card Safety Guide Manual Not available in all locations AA68 03184A Stand Screw x 2 6002 001294 Stand B350 BN96 11238A B450 BN96 11887A ...

Page 27: ...re is a disconnected or loose cable connection Check to see if the cables are connected according to the connection diagram Check the power input to the Main Board Check internal Pattern lola3 if fhere is some picture noise Factory mode Info MENU Mute power on Advanced menu MST69A84HQ Pattern select Off Press right button of Remocon If lola3 NG Chahge the Main Board 1 2 ...

Page 28: ...ing Check the internal cable connection status inside the unit Check the fuses of each part Check the output voltage of SMPS Replace the Main Board Diagnostics LA22B350F2 LA22B450C8 Does proper DC A3 3V appear at R1111 Check a IC1106 Change a main PCB ass y No Yes Does proper DC A2 5V A1 2V appear at R1110 C1116 No Yes LAMP off power indicator LED red color Yes No Check a connection a power cable ...

Page 29: ...C cable Change a main PCB ass y No Does the digital data appear at the output of LVDS Cable Power Indicator is off Lamp on no video No Check a PC source and check the connection of DSUB cable Check a IC4000 Change a main PCB ass y Yes Check a LVDS cable Replace a lcd panel Does the signal appear at R4059 R4058 R4056 R4061 R4060 R G B H V of IC4000 Please Call to Samsung Co LTD Yes Yes Input a anal...

Page 30: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal ...

Page 31: ...nostics LA22B350F2 LA22B450C8 No Does the digital data appear at R4065 R4072 Power Indicator is off Lamp on no video No Check the connection of HDMI cable Check a IC4000 Change a main PCB ass y Check a IC4000 Change a main PCB ass y No Does the digital data appear at output of LVDS Cable Check the LVDS cable Replace the LCD panel Please Contact Tech support Yes Yes Input a HDMI cable Yes Yes Yes 2...

Page 32: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data ...

Page 33: ... disconnected Diagnostics LA22B350F2 LA22B450C8 No Check a B voltage 2 of Tuner 5V change a main PCB ass y No No Power Indicator is off Lamp on no picure Yes Change a main PCB ass y Does the signal appeat 8 of TU2400 Does the Signal appear at C4022 of IC4000 Check the LVDS cable Replace the LCD panel Please Call to Samsung Co LTD Yes Connect the RF cable and check RF signal Yes Yes Caution Make su...

Page 34: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal ...

Page 35: ...S cable connecting the Main Board and the Panel is disconnected Diagnostics LA22B350F2 LA22B450C8 No Check a connection harness No Power Indicator is off Lamp on no picture Yes Does the signal appear at C4025 of IC4000 Check a LVDS cable Replcelcd panel Please Call to Samsung Co LTD Yes Check a A V cable and video signal Yes 1 2 Caution Make sure to disconnect the power before working on the IP bo...

Page 36: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal ...

Page 37: ...ics LA22B350F2 LA22B450C8 No Check a connection harness and headphone jack side AV Check Sound Processor IC6003 M star No Picture is display no sound Check a B13V Line Change a main PCB ass y No Does the signal appear at R2109 R2107 R2108 AUSD AUWS AUSCK of IC2100 Check the DC 13V appear at C2112 of IC2100 Replace the speaker ass y Yes Connect a sound cable control a volume Yes 1 Yes 2 Caution Mak...

Page 38: ...4 12 4 Troubleshooting WAVEFORMS 6 The Signal are Inputed to IC1201 7 The Signal are Inputed to IC1202 ...

Page 39: ...s essential Avoid overload Excessive signal from a sweep generator might overload the front end of the TV When inserting signal markers do not allow the marker generator to distort test result Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate Do not attempt to connect or disconnect any wire while the TV is turned on Make sure that the powe...

Page 40: ... PICTURE ON FACTORY The buttons are active in the service mode 1 Remote Control Key Power Arrow Up Arrow Down Arrow Left Arrow Right Menu Enter Number Key 0 9 2 Function Control Key Power CH CH VOL VOL Menu TV VIDEO Enter 4 3 2 Panel Check You have to check Panel Maker Because of different adjustments as follows First of all Check the label rating 1 Label Rating File LCD PANEL MARK A ACER AUO S SE...

Page 41: ...MCO SEMCO XUGUANG DDR Samsung Samsung Ch Table SUWON SUWON SESK SHE TTSEC SEIN SDMA TSED SAVINA SIEL TSE Local Set East Asia Vietnam Philippines China India Iran Israel Middle Asia East Asia Thailand Africa P P Language English English China French Arabic Persia Hebrew Russian PDP Group P55A_50SP P55A_50SP ADC WB ADC AV Calibration Comp Calibration PC Calibration HDMI Calibration Success Success S...

Page 42: ...B_Offset 2nd_R_Offset 2nd_G_Offset 2nd_B_Offset 2nd_R_Gain 2nd_G_Gain 2nd_B_Gain 132 139 67 67 67 128 128 128 85 85 86 140 142 142 57 57 57 114 114 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 WB Sub Brightness Red Offset Green Offset Blue Offset Sub Contrast Red Gain Green Gain Blue Gain 128 128 128 128 128 128 128 128 0 2...

Page 43: ...ume Curve NT Conversion Auto Power LVDS Format LNA Menu WatchDog Bus Stop Panel Auto Setting HotPlug HotPlugCtrl HotPlugDelay USB Upgrade Spread Spectrum 8 32 EXT Off On On Flof Lang OSD Off Off EA Off On DEFAULT Off Off On On 12 Off 0 99 19 22 23 26 27 32 37 40 42 46 50 52 57 EXT INT INT_NEG EXT_POS EXT_NEG Off 0 85 0 88 0 90 0 93 0 95 0 98 M1 M2 M3 M4 On Off On Off Flof List Lang OSD W Europe E ...

Page 44: ...0 255 0 255 0 255 0 255 0 255 Carrier2 Threshold Amp On Thr High Amp On Thr Low Amp Off Thr High Amp Off Thr Low NSR On Thr High NSR On Thr Low NSR Off Thr High NSR Off Thr Low 2 0 1 0 13 0 24 0 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 FM Prescale AM Prescale NICAM Prescale FM M Prescale SC1 Vol SC2 Vol Audio Delay Normal Audio Delay Game Num Of Check Stereo Cnt MP3 Level Ext Volume Scale R...

Page 45: ...3 0 255 0 7 0 255 IPC MJC Film Det Speed NT Film Det Speed PAL Motion Hist Motion History 80 80 5 3 0 255 0 255 0 7 0 7 Color Space Red Sat Red Hue Green Sat Green Hue Blue Sat Blue Hue Cyan Sat Cyan Hue Magenta Sat Magenta Hue Yellow Sat Yellow Hue FWC Blue FWC Red 25 64 34 127 37 80 37 80 25 64 23 64 21 21 0 30 0 127 0 30 0 127 0 30 0 127 0 30 0 127 0 30 0 127 0 30 0 127 0 30 0 30 ...

Page 46: ... Movie WB Moive Color Mode Color Tone Msub Brigh Msub Contr W1_RGAIN W1_BGAIN W1_ROFFS W1_BOFFS W2_RGAIN W2_BGAIN W2_ROFFS W2_BOFFS NO_RGAIN NO_BGAIN NO_ROFFS NO_BOFFS Movie_Contr Movie_Brigh Moive_Color Moive_Sharp Moive_Tint Mv BkLight M Gamma M S Gamma Off Movie Cool 128 128 138 109 128 128 144 84 128 128 134 109 128 128 100 45 55 75 50 10 Off 3 On Off Dynamic Standard Movie Cool Normal Warm1 W...

Page 47: ...namic Dimming Dynamic CE Off On Off Dynamic CE B Slope Off Off On Off On Off LNA Plus RF Db 0 Level RF Db 1 Level RF Db 2 Level RF Db 3 Level 3 8 13 25 0 255 0 255 0 255 0 255 Megazine LNA UART Select Debug Mode BackEndMute PixelShift Test Hp Detect PDP FRC Visual Test Off Off Normal Off Off High On Off On Off On Off Normal NONE MSTAR Run Time On Off On Off High Low On Off On Off ...

Page 48: ... 3 0 7 0 7 0 7 0 3 0 3 0 3 0 7 0 3 0 3 0 3 Sharpness Sharpness H1 Gain H2 Gain H3Gain H4 Gain V1 Gain V2 Gain H Overshoot B1 H Overshoot B2 V Overshoot B5 V Overshoot B8 H Undershoot B1 H Undershoot B2 V Undershoot B5 V Undershoot B8 Coring TH2 Coring TH1 44 8 8 8 48 8 16 16 16 16 16 16 16 16 1 1 0 63 0 63 0 63 0 63 0 63 0 63 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 255 0 15 0 15 ...

Page 49: ...Hue M_Skin_Hue M_Skin_X M_Skin_Y Mid_color_level M_Mid_color_level 0 0 160 96 160 240 0 0 0 0 0 176 176 0 11 0 11 0 255 0 255 0 255 0 255 0 15 0 127 0 11 0 11 0 255 0 255 EEPROM Reset EEPROM Reset EEPROM Reset NVR All Clear Off OK On Off Defect Log Defect Log LogList1 LogList2 LogList3 ...

Page 50: ...c 1 Source HDMI 2 Setting Mode 1280 720 60Hz 3 Pattern Pattern 24 Chess Pattern Chess Pattern 4 Use Equipment CA210 Master MSPG925 Generator Use other equipment only after comparing the result with that of the Master equipment Input mode Calibration Pattern CVBS IN Model_ 1 Perform in NTSC B W Pattern 24 Lattice Component IN Model_ 6 Perform in 720p B W Pattern 24 Lattice PC Analog IN Model_ 21 Pe...

Page 51: ...ete it returns to the high level menu 8 You can see the change of the Comp Calibration status from Failure to Success Method of Color Calibration PC 1 Apply the VESA XGA Lattice N0 21 pattern signal to the PC IN port 2 Press the Source key to switch to PC mode 3 Enter Service mode 4 Select the Calibration menu 5 Select the PC Calibration menu 6 In PC Calibration Off status press the key to perform...

Page 52: ...te Balance Adjustment 5 W B low light hight light Sub Bright R offset G offset B offset Sub Contrast R gain G gain B gain W B adjustment Condition refer next page 4 5 HOW TO UPGRADE 4 5 1 Software Upgrade MSTAR ISP Tool MSTAR ISP TOOL ...

Page 53: ...6 1 6 Wiring Diagram 6 Wiring Diagram 6 1 Wiring Diagram LOLA3 LIPS Board T CON FRC Speaker Speaker Function LOLA3 LOLA3 LOLA3 T CON FRC Speaker Speaker Function ...

Page 54: ...N PC INPUT CN3200 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PC_RED PC_GREEN PC_BLUE GND GND GND GND GND PC_5V PC_IDENT GND SDA_TXD PC_H_SYNC PC_V_SYNC SCL_RXD HDMI Connection CN3100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 HDMI_RX2 GND HDMI_RX2 HDMI_RX1 GND HDMI_RX1 HDMI_RX0 GND HDMI_RX0 HDMI_RXCLK GND HDMI_RXCLKHDMI_ CEC GND HDMI_DDC_SCL HDMI_DDC_SDA GND HDMI_5V IDENT_HDMI HDMI_5V IDENT_HD...

Page 55: ...6 3 6 Wiring Diagram 6 2 Wiring Picture LA22B350F2 LA22B450C8 ...

Page 56: ...re CN5401 Function IR Connection Main Board and Function IR Assy defective symptom No picture diable Power On Off CN5200 T CON The LVDS signal transferred from Main Board to Panel defective symptom No picture but normal sound 6 4 Cables Use 1 LVDS CONNECTOR 2 ASSY SPEAKER 3 IR to FUNCTION Code BN96 02854N BN96 11276A 350 only BN96 11522B 350 only Photo Use 4 ASSY SPEAKER 5 IR to FUNCTION Code BN98...

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