Samsung UN40C8000XM Page 8 Service Manual Download

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4-1

4. Troubleshooting

4. Troubleshooting

4-1. Troubleshooting

Check the various cable connections first.

• Check to see if there is a burnt or damaged cable.

• Check to see if there 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 the internal patterns from the SVC option.

FBE : Factory mode(INFO - MENU - MUTE POWER ON when TV is "standby on") -> SVC -> Test Pattern -> FBE

Pattern Sel "FBE pattern is created by Main IC(Valencia)

Case1: FBE pattern is ok , then change the T-con Board.

Case2: FBE pattern is NG , change the main Board.

SMPS BOARD

MAIN BOARD

T-CON

Summary of Contents for UN40C8000XM

Page 1: ...e the rear cover for the more information 1 Precautions 2 Product specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 Exploded View Part List 6 Wiring Diagram Chassis N81B Model UN40C8000XM UN46C8000XM UN55C8000XM UN65C8000XM UN40C8000XM UN46C8000XM UN55C8000XM UN65C8000XM ...

Page 2: ...2 6 2 4 Channel Table 2 7 2 5 New Functional Explanation 2 9 2 6 Accessories 2 24 3 Disassembly and Reassembly 3 1 3 1 Disassembly and Reassembly 3 1 4 Troubleshooting 4 1 4 1 Troubleshooting 4 1 4 2 Alignments and Adjustments 4 32 4 3 Factory Mode Adjustments 4 33 4 4 White Balance Calibration 4 49 4 5 Servicing Information 4 51 5 Exploded View Part List 5 1 5 1 Exploded View 5 1 5 2 Parts List 5...

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 2010 Samsung Electronics Co Ltd All rights reserved Printed in Korea P N BN82 00978A 00 ...

Page 4: ... Diagram 6 Wiring Diagram 6 1 Wiring Diagram 46 55 65 T CON SMPS Woofer Speaker Function Main Board CN1701 CN2101 CNL801 CNM802 IR Panel CN302 CN601 CN301W CN802S POWER CORD Speaker CN201 Emitter CON1 CNL803 CNL802 ...

Page 5: ...C Panel_VCC CN302 to Speaker 1 2 3 4 R R L L CN301W to Woofer 1 2 3 4 SW SW SW SW CN601 1 2 3 4 5 6 IR GND A3 3V LED_INDICAT BUZZER KEY1 7 8 9 10 11 12 KEKY2 NCL A5V NC LED_CTRL B5V CN502 to HDMI1 1 2 3 4 5 6 7 8 9 10 HDMI1_RX2 DGND HDMI1_RX2 HDMI1_RX1 DGND HDMI1_RX1 HDMI1_RX0 DGND HDMI1_RX0 HDMI1_RXCLK 11 12 13 14 15 16 17 18 19 DGND HDMI1_RXCLK HDMI_CEC DGND HDMI1_DDC_SCL HDMI1_DDC_SDA DGND HDMI...

Page 6: ...DC_SDA DGND HDMI3_5V HDMI3_HPD CN501 to HDMI4 1 2 3 4 5 6 7 8 9 10 HDMI4_RX2 DGND HDMI4_RX2 HDMI4_RX1 DGND HDMI4_RX1 HDMI4_RX0 DGND HDMI4_RX0 HDMI4_RXCLK 11 12 13 14 15 16 17 18 19 DGND HDMI4_RXCLK HDMI_CEC DGND HDMI4_DDC_SCL HDMI4_DDC_SDA DGND HDMI4_5V HDMI4_HPD CN201 to CNM802 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NC NC DET_5V NC PWM DGND B5V NC B13V B13V B13V DGND DGND DGND B5V 16 17 18 19 20 21 ...

Page 7: ...d CN2101 T CON The LVDS signal transfered from Main Board to Panel CNL803 CN1701 Main Board controls LED Driver for Local Dimming 6 4 Cables Use Main SMPS Main Tcon Function Assy Code 40 46 55 BN39 01291A 65 BN39 01375A 46 BN96 12723Q 55 BN96 12723R 65 BN96 14108E 46 BN96 14056C 55 BN96 14056D 65 BN96 15474G Photo ...

Page 8: ...to see if the cables are connected according to the connection diagram Check the power input to the Main Board 2 Check the internal patterns from the SVC option 3 FBE Factory mode INFO MENU MUTE POWER ON when TV is standby on SVC Test Pattern FBE Pattern Sel FBE pattern is created by Main IC Valencia Case1 FBE pattern is ok then change the T con Board Case2 FBE pattern is NG change the main Board ...

Page 9: ...in Board Yes Can you see Digital Channel broadcast No Replace the Main Board Check the Power Cord Yes No No is any sound of TV when RF signal connected Yes A5V appear at the pin 4 of CN1001 Yes Check LVDS cable connected If necessary replace the T con board No Change the main board No Check 18p cable If necessary replace the SMPS board Yes B13V appear at the pin 13 15 17 of CN1001 No Change the ma...

Page 10: ...4 3 4 Troubleshooting ...

Page 11: ...one When I play a video through Connected Home I get intermittent picture loss An 801 11b g bandwidth network is used between a cell phone and a sharing device There may be frequent buffering for HD quality videos this also depends on the condition of the wireless connection Please optimize your wireless Internet environment settings avoid using wireless Internet or bluetooth altogether if possibl...

Page 12: ...ScreenShare Client s IP address must be the same 10 88 83 as that of the DTV and the subnet mask and gateway address must be the same as the DTV If the IP address of the DTV is 10 88 83 4 and the subnet mask is 255 255 0 0 the first four digits of the ScreenShare Client s IP address must be the same 10 88 as that of the DTV and the subnet mask and gateway address must be the same as the DTV Move f...

Page 13: ...o the sharing 3 device using option 1 or 2 check the settings of the sharing device to see if the DHCP server function on the sharing device is enabled If disabled activate the function For details on how to set up the sharing device see the manual for the corresponding sharing device If you still cannot connect to the sharing device after confirming options 1 2 and 3 4 reset the sharing device an...

Page 14: ...il If the IP address subnet mask and gateway were typed in manually check that valid values were entered For example 0 0 0 0 is not valid for an IP address subnet mask or gateway address If the IP address the user entered in is invalid change it to a valid IP address In a network test over a wireless connection the third item gateway ping fails If the IP address is automatic and connected to a sha...

Page 15: ...the PD board Diagnostics Does proper Main DC B18VS B5V B13V appear at the PIN 3 PIN 5 PIN13 of CN1001 Does proper DC A3 3V appear at the pin3 of IC1014 Change the IC1014 or the Main Assy No Yes Does proper DC B3 3V appear at the pin8 of IC206 B9V appear at 3pin of IC1003 No Yes When power on check the sound of relay on Yes No check a connection power cable P N BN96 12845B Does proper Stand By DC A...

Page 16: ...4 9 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 17: ...sure to disconnect the power before working on the PD board Diagnostics Change the PC cable Change the main PCB assembly No Yes Does the digital data appear at output of IC6001 No Yes No video Yes Check the PC source and check the connection of DSUB No Input an analog PC signal Check the connected cable Yes Change the IC6001 or the main PCB assembly Check the LVDS cable Replace the LCD panel Pleas...

Page 18: ...4 11 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 19: ...4 12 4 Troubleshooting WAVEFORMS 1 PC Input V Sync H Sync 2 LVDS Out CLK ...

Page 20: ...Change the main PCB assembly No Yes Does the digital data appear at output of IC3013_CH pin80 87 HDMI output No Yes No video Yes Check the HDMI source and check the connection of HDMI cable No Input an HDMI signal Check the connected cable Yes Change the IC3013 or the main PCB assembly Yes Check the LVDS cable Check the T con board Replace the LCD panel Please contact Tech support No Does the sign...

Page 21: ...4 14 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 22: ...4 15 4 Troubleshooting WAVEFORMS 3 4 HDMI Input CLK 5 TS DATA Out Clk Data 0 ...

Page 23: ... Make sure to disconnect the power before working on the PD board Diagnostics Change the TU5001_EA or the main PCB assembly No Yes No video Yes Check the RF source and check the connection of RF cable No Input the RF signal Check the connected cable Yes 6 Does the signal appear at pin11 12 of TU5001_EA Yes Check the LVDS cable Replace the LCD panel Please contact Tech support No Does the digital d...

Page 24: ...4 17 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 25: ...4 18 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...

Page 26: ... Make sure to disconnect the power before working on the PD board Diagnostics Yes Check the LVDS cable Replace the LCD panel Please contact Tech support No Does the digital data appear at pin 15 81 of CN9301 No Change the IC7001 or the main PCB assembly 7 No Change the CN3008 CN3009 or the main PCB assy No video No Check the video source and check the connection of video cable Does the signal appe...

Page 27: ...4 20 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 28: ...4 21 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...

Page 29: ...sure to disconnect the power before working on the PD board Diagnostics No Change the CN3004 or the main PCB assy No video No Check component source and check the connection of component cable Does the signal appear at R3064 3065 3066 Y Pb Pr Yes Yes Input a component signal Check the connected cable Yes 9 Yes Check the LVDS cable Replace the LCD panel Please contact Tech support No Does the digit...

Page 30: ...4 23 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 31: ...4 24 4 Troubleshooting WAVEFORMS 7 Eagle Out Clk H Sync 9 Component Input Y Pb ...

Page 32: ...D board Diagnostics Change the CN3004 or the main PCB assy No Yes No sound Yes Check the sound source and check the connection of sound cable No Input a sound signal Check the connected cable Yes Check the LVDS cable Replace the speaker Please contact Tech support No Does the digital data appear at RA7310 PIN 1 3 5 7 No Change IC7001 or the main PCB assembly Does the signal appear at R3069 R3071 o...

Page 33: ...4 26 4 Troubleshooting Location Main TOP Location Main BOTTOM ...

Page 34: ...4 27 4 Troubleshooting WAVEFORMS 0 Audio Input Sign Wave I2S Input Clk Data Audio Amp Out Sign Wave ...

Page 35: ...8 4 Troubleshooting 4 1 8 Reference Output CNT which run Edge Led Refer to the picure and pin map for matching each LED part of connector PIN Signal 1 led1 2 led1 3 led2 4 led2 5 led3 6 led3 7 led4 8 led4 ...

Page 36: ...der Bottom right LED driver is out of order PD board is acting normally Bottom LED bar wire is down Voltage at CD9413 17 19V 22 33V 39 41V Judgement PD board is out of order Bottom right LED driver is out of order PD board is acting normally Bottom LED bar wire is down 55 LED Driver output criteria for judgement Voltage at CD9113 23 25V 27 36V 49 51V Judgement PD board is out of order Bottom right...

Page 37: ... to have a trouble Power on the 3D glass right in front of the 3D emitter IF the 3D emitter does not blink TV has a problem 3D emitter or Main Board is bad IF the 3D glass operates only right in front of the 3D emitter IF the 3D glass does not operates at all IF the 3D glass operates well regardless of the distance 3D emitter is bad 3D glass is bad No problem both 3D emitter and 3D glass IF the 3D...

Page 38: ...eshooting Using Gender Cables Use gender cables between the TV and connecting devices Lan Gender Cable RF Antenna Gender Cable Sound Gender AV Gender Cable Component Gender Cable PC Gender Cable Optical Gender Cable ...

Page 39: ...ing is essential 3 Avoid overload Excessive signal from a sweep generator might overload the front end 4 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 5 the backcover nameplate Do not attempt to connect or disconnect any wire while the TV is turned on Make sure 6 ...

Page 40: ...If you fail to enter service mode repeat steps 1 and 2 above Initial SERVICE MODE DISPLAY State 5 Mode CATV RES NOSIGNAL Option Control SVC Expert ADC WB Advanced T VALDAAC 0078 T VALDAAS 0230 EDID SUCCESS CALIB AV X COMP X PC O HDMI O Option 0000 1100 10 DTP SP VAL 1048 RFS 42 42 2009 12 25 FRCS FW 0111 CONFIG 6D00 N240 0006 READING 2010 Type NONE Model UA C8000 MAC SUCCESS Factory Data Ver 189 E...

Page 41: ...e Set 1 ON at EDID ON OFF menu At 2 EDID WRITE ALL menu press key of the remote control After few seconds Success will appear If 3 Failure appears remove the PC cable and HDMI cable that connected to TV And try it again If the problem still exists go to 4 HDMI EDID Ver menu and change the HDMI version to HDMI 1 2 or HDMI 1 3 Change the Main Board if same problem occurs 5 ...

Page 42: ...er SEC_ISDB_T DDR Light Effect OFF Ch Table Country Front Color W Milky Control Factory Name EDID Sub Option PDP Option Shop Option Asia Option SOUND Config Option SSC EDID Factory Name Data Range EDID ON OFF ON OFF EDID WRITE ALL Success Failure EDID WRITE PC Success Failure HDMI EDID Ver HDMI1 2 HDMI1 3 HDMI EDID Port NONE Not Support HDMI2 HDMI3 HDMI4 ...

Page 43: ... TOOLS Support 31 PVR Support OFF LNA Support OFF 3D Support ON CI Support OFF Gemstar Support OFF MediaPlay Movie with chapteri WSS Support DLNA ON OTA Duration Test OFF DB On with 10MB Alternate Del OFF Play List ON NETWORK Support Wireless Info Link Country USA PDP Option Hotel Option Factory Name Data Range Hotel MODE ON POWER ON CHANNEL 3 CHANNEL TYPE DTV POWER ON VOLUME 10 MIN VOLUME 0 MAX V...

Page 44: ...V 1 HDMI HOT PLUG Disable Num of AV 1 HOTPLUG SWITCHING Boot Num of SVIDEO 0 HOT PLUG OFF HOLD TIME 1200ms Num of COMP 1 HDMI FLT CNT SIG 100ms Num of HDMI 4 HDMI FLT CNT LOS 100ms Num of PC 1 UNSTABLE BAN CNT 1250ms Num of SCART 0 HDMI Err Cnt 1 Num of DVI 0 HDMI ROBIN ON Num of OPTICAL Link 0 HDMI Callback ON Num of MEDIA 1 HDMI CTS Thld 0 Num of PANEL KEY 6 HDMI CTS Cnt1 0 Num of USB Port 2 HDM...

Page 45: ...ctory Name Data Range SCC Mode SSC ON OFF SSC Input Data Hx 272 Hy 278 Lx 272 Ly 278 Sscc Const sSCC Hx 548 sSCC Hy 591 sSCC Lx 546 sSCC Ly 585 pSCC Const pSCC Hx 548 pSCC Hy 591 pSCC Lx 546 pSCC Ly 558 SCC Source Data PBA Swap PBA ...

Page 46: ...Hr LOGIC USB D L T CON USB Download Failure 0 You can upgrade T con program via USB Put a upgrading file in USB memory stick and insert it in USB1 or USB2 connector of the TV And press at the T CON USB Download menu and it will download the upgrading file from the USB memory stick TC905x7 TC90507 FFT Size_0 0 Guard Interval_0 0 Freq Offset_0 0 SNR_0 0 IF AGC_0 0 TMCC Lock_0 0 TS Packet_0 0 Master ...

Page 47: ...512 2nd_COMP_B_Low 4 1st_COMP_Cr_Low 512 2nd_COMP_R_High 940 1st_COMP_Y_High 940 2nd_COMP_G_High 940 1st_COMP_Cb_High 512 2nd_COMP_B_High 940 1st_COMP_Cr_High 512 2nd_COMP_Delta 1 1st_COMP_Delta 1 2nd_PC_R_Low 4 1st_PC_R_Low 16 2nd_PC_G_Low 4 1st_PC_G_Low 16 2nd_PC_B_Low 4 1st_PC_B_Low 16 2nd_PC_R_High 940 1st_PC_R_High 1004 2nd_PC_G_High 940 1st_PC_G_High 1004 2nd_PC_B_High 940 1st_PC_B_High 2nd_...

Page 48: ...Cb_BL 1st_Cr_RH 1st_Cr_RL 2nd_R_L 131 2nd_G_L 131 2nd_B_L 131 2nd_R_H 107 2nd_G_H 107 2nd_B_H 107 White Balance Factory Name Data Range Sub Brightness 128 R Offset 512 G Offset 512 B Offset 512 Sub Contrast 128 R Gain 548 G Gain 512 B Gain 520 Movie R Offset Movie B Offset Movie R Gain Movie B Gain ...

Page 49: ...UNC_OUT3 95 BM_start 40 LFUNC_OUT4 132 BM_start_max 110 LFUNC_OUT5 132 Lfunc_gain 128 UFUNC_TH1 17 Hfunc_gain 128 UFUNC_TH2 95 ACR Offset 10 UFUNC_TH3 178 Skin UV 136 UFUNC_OUT2 45 FBE Sub color 132 UFUNC_OUT3 75 M Skin UV 138 UFUNC_OUT4 255 M Sub Color 128 UFUNC_OUT5 255 N_Skin_UV 128 PPHC_Red 0 N_Sub_Gamma 0 PPHC_Green 7 Color Gamut 128 PPHC_Blue 0 LFUNC_TH1 28 PPHC_Cyan 10 LFUNC_TH2 70 PPHC_Mag...

Page 50: ...t M_Sub_Gamma W1_Boffset HDMI Black Level SubSetting Factory Name Data Range Gamma 0 95 PWM Max 100 PWM Mid 10 PWM Min 0 Contrast Dimming OFF 7 5 IRE NTSC OFF 7 5 IRE OFFSET 48Hz Enable OFF Peak Dimming ON Dynamic CE ON Color Mapping Factory Name Range Factory Name Range Auto_Red_R 50 Auto_Yellow_R 50 Auto_Red_G 0 Auto_Yellow_G 50 Auto_Red_B 0 Auto_Yellow_B 0 Auto_Green_R 0 Auto_Cyan_R 0 Auto_Gree...

Page 51: ...C Factory Name Range Factory Name Range AGC_mode 1 ST_Beg_NTSC 0 Gain_VCR 0 VS_Slice_Level 4 Y_Gain_Man 880 HS_Slice_Level 3 Y_Shape_sel 13 FB_Delay_adj 0 Y_Shape_SCM 29 RGB_Delay_adj 0 C_Shape_sel 4 slice_mod_fine 0 C_Shape_SCM 4 scm_fdet_lvl 150 If_iir 0 bl_range 3 If_filt_sel 6 AR_ADC Factory Name Data Range PHASE 16 SOG_BW 3 SSC_PC 10 RGB_DLY 0 YC_Delay Factory Name Range Factory Name Range PA...

Page 52: ...c 227 Sharpness Factory Name Range Factory Name Range Pre_GainH1 12 Post_GainPE2 100 Pre_GainH2 15 Post_GainPV1 55 Pre_GainH3 18 Post_GainPV2 80 Pre_GainV1 15 CTI_Gain 15 Pre_GainV2 15 Pre_LTIH 10 Pre_GainV3 8 LTI_H 20 Post_GainH1 24 LTI_V 12 Post_GainH2 36 PRE_CORING_H 6 Post_GainH3 0 PRE_CORING_V 6 Post_GainV1 20 POST_CORING 2 Post_GainV2 32 Pre_TOT 12 Post_GainV3 0 Post_TOT 32 Post_GainPE1 75 S...

Page 53: ...ainV2 1 S1_Post_GainPE2 60 S3_Pre_GainV3 0 S1_Post_GainPV1 33 S3_Post_GainH1 2 S1_Post_GainPV2 48 S3_Post_GainH2 3 S2_Pre_GainH1 4 S3_Post_GainH3 0 S2_Pre_GainH2 6 S3_Post_GainV1 2 S2_Pre_GainH3 7 S3_Post_GainV2 3 S2_Pre_GainV1 6 S3_Post_GainV3 0 S2_Pre_GainV2 6 S3_Post_GainPE1 7 S2_Pre_GainV3 3 S3_Post_GainPE2 10 S2_Post_GainH1 9 S3_Post_GainPV1 5 S2_Post_GainH2 14 S3_Post_GainPV2 8 LNA_Plus Fact...

Page 54: ...10 N240 PWM Delay_48 0 2D3D Depth2 20 N240 ANA Delay_48 0 2D3D Depth3 30 Reading Factory Name Range Factory Name Range POST_FDISPLAY 0 HMVSRMargin_2X_H 6 RAMP_SPEED 1 HMVSRMargin_2X_M 6 POST_RAMP_SPEED 1 HMVSRMargin_2X_L 6 LVDS_RX_FMT 1 VMVSRMargin_2X 2 LVDS_TX_FMT 1 HSADPercentT1_2X 10 LVDS_RX_BIT 1 HSADPercentT2_2X 14 LVDS_TX_BIT 1 HMVSRMargin_FILM_H 6 POST_OUT1_ORDER 0 HMVSRMargin_FILM_M 6 POST...

Page 55: ...ideo_Judder_High 0 X_VStabSensF 840 Hangup Detection 0 X_HaloSizStatVid 128 Q LVDS Sequence 0 X_HaloSizStatF 10 Q LVDS Format 0 X_HaloSizCorF 20 Q LVDS bit width 0 X_HaloSizSensF 30 PC_Mode_OnOff FRCQ Fallback Factory Name Range Factory Name Range SensD_Film_Low 31 V_Len_Slope_Film 1 SensD_Film_Medium 31 SensD_Video 0 SensD_Film_High 31 Rel_Start_Video 20 Rel_Start_Film 20 Rel_Slope_Video 1 Rel_Sl...

Page 56: ... 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 Per...

Page 57: ...te 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 ADC WB and ADB menu 5 Select the PC Calibration menu 6 In PC Calibration Off status press the key to perfo...

Page 58: ...n display is changed to Wiselink Pro Menu Press the 3 MENU button to display the menu Press the or button to select Setup then press the ENTER button Press the or button to select SW Upgrade then 4 press the ENTER button Press the 5 ENTER button The message Scanning for USB It may take up to 30 seconds is displayed The message Upgrade version XXXX to version XXXX 6 The system will be reset after u...

Page 59: ...Test 1 The message Does the problem still exist with this test pattern is displayed 2 Press Yes This is a TV SET problem The massage Contact Samsung s call center at 1 800 SAMSUNG for assistance is displayed 3 Press No This is not a TV SET problem The message If the self diagnosis picture is OK picture distortion may caused by your external device Please check connection If the problem still persi...

Page 60: ...roblem The message Contact Samsung s call center at 1 800 SAMSUNG for assistance is displayed 3 Press No This is not a TV SET problem The message If the self diagnosis picture is OK picture distortion may caused by your external device Please check connection If the problem still persists refer to the external device s user manual is displayed ...

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