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Samsung UN40C8000XM Service Manual
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Samsung UN40C8000XM Service Manual

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SERVICE
TFT-LED TV
UN40C8000XM / UN46C8000XM
UN55C8000XM / UN65C8000XM
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LED-TV
Chassis
: N81B
Model
: UN40C8000XM
UN46C8000XM
UN55C8000XM
UN65C8000XM
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contents

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Summary of Contents for Samsung UN40C8000XM

  • Page 1 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram UN40C8000XM / UN46C8000XM UN55C8000XM / UN65C8000XM Refer to the service manual in the GSPN (see the rear cover) for the more information.
  • Page 2 Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Electrostatically Sensitive Devices (ESD) Precautions ..........1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Spec Comparison to the Old Models ................2-5 2-3.
  • Page 3 Mideast & Africa http://mea.samsungportal.com © 2010 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.
  • Page 4 6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram 46" / 55" / 65" „...
  • Page 5 6. Wiring Diagram 6-2. Connector CN2101(to T-CON) CN302(to Speaker) RE[0]- SW_PVCC RO[4]+ FRC_RESET RO[4]- RO[3]+ RO[3]- CN301W(to Woofer) LVDS opt H-Sync Out ROCLK+ Panel_WP ROCLK- T_Con Check RO[2]+ RO[2]- CN601 RO[1]+ KEKY2 RE[4]+ RO[1]- RE[4]- RO[0]+ A3.3V RE[3]+ RO[0]- LED_INDICAT RE[3]- BUZZER LED_CTRL...
  • Page 6 6. Wiring Diagram CN503(to HDMI2) CN1701 HDMI2_RX2+ DGND SSTT_LEFT DGND DGND HDMI2_RXCLK- SDATA_LEFT DGND HDMI2_RX2- HDMI_CEC VSYNC_IN_LEFT HDMI2_RX1+ DGND DGND HDMI2_DDC_SCL DGND HDMI2_RX1- HDMI2_DDC_SDA SEN0_LEFT SCL_D HDMI2_RX0+ DGND SCLK_LEFT SDA_D DGND HDMI2_5V HDMI2_RX0- HDMI2_HPD SEN1_LEFT SW_RESET_LEFT HDMI2_RXCLK+ CN504(to HDMI3) HDMI3_RX2+ DGND DGND HDMI3_RXCLK-...
  • Page 7 6. Wiring Diagram 6-3. Connector Functions Connector Functions Supply power from SMPS to Main Board. CNM801   CN201 CN2101   T-CON The LVDS signal transfered from Main Board to Panel. CNL803   CN1701 Main Board controls LED Driver for Local Dimming. 6-4.
  • Page 8 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.
  • Page 9 4. Troubleshooting Simple flow chart of malfunction „ Does the TV turn on? Can you see anything on the screen? Can you see OSD menu running on the screen? Can you see Digital Channel broadcast ? Check LVDS cable connected Check the Power Cord to Main Board.
  • Page 10 4. Troubleshooting...
  • Page 11 Connected Home or Screen Share function which are found on Samsung Smartphones. • Check that the PC Share Manager is enabled, the Samsung TV is set to allow connections and the ScreenShare function on the connected cell phone is enabled. •...
  • Page 12 4. Troubleshooting Possible Solution Problem • AllShare (ScreenShare Server) I cannot find the remote control service Check that the ScreenShare Client device is correctly connected to the network of provided by the ScreenShare Server from the the sharing device that the DTV is connected to. ScreenShare Client.
  • Page 13 4. Troubleshooting Possible Solution Problem • Network Setup How do I setup the network? • Click the [Menu] button and open [Setup] to select [Network]. Configure wired or wireless network settings. For details, please refer to the IB. How do I check the network status? •...
  • Page 14 • If Samsung Wireless Link is Off or the product does not have the Samsung auto-configuration and a message that it is Wireless Link function, please retry searching to find the sharing device. (May not connecting is displayed only.
  • Page 15 4. Troubleshooting 4-1-1. No Power The PD board relay does not work when connecting the power cord. Symptom The units appears to be dead. The PD relay does not work when connecting the power cord if the cables are improperly connected or the Main Board or PD is not functioning.
  • Page 16 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM...
  • Page 17 4. Troubleshooting 4-1-2. No Video (Analog PC signal) Symptom Audio is normal but no picture is displayed on the screen. Check the PC source Major Check the IC7001(Valencia) checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Caution Make sure to disconnect the power before working on the PD board.
  • Page 18 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-11...
  • Page 19 4. Troubleshooting WAVEFORMS „ PC Input (V-Sync, H-Sync) LVDS Out (CLK + / -) 4-12...
  • Page 20 4. Troubleshooting 4-1-3. No Video (HDMI - Digital Signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source Major Check the IC7001(Valencia) checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Caution Make sure to disconnect the power before working on the PD board.
  • Page 21 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-14...
  • Page 22 4. Troubleshooting WAVEFORMS „ HDMI Input (CLK + / -) TS DATA Out (Clk, Data [0]) 4-15...
  • Page 23 4. Troubleshooting 4-1-4. No Video (Tuner_CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source Major Check the Valencia checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Caution Make sure to disconnect the power before working on the PD board.
  • Page 24 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-17...
  • Page 25 4. Troubleshooting WAVEFORMS „ Tuner CVBS Out (Pattern: Grey Bar) Eagle+ Out (Clk, H-Sync) 4-18...
  • Page 26 4. Troubleshooting 4-1-5. No Video (Video CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Valencia checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Caution Make sure to disconnect the power before working on the PD board.
  • Page 27 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-20...
  • Page 28 4. Troubleshooting WAVEFORMS „ Tuner CVBS Out (Pattern: Grey Bar) Eagle+ Out (Clk, H-Sync) 4-21...
  • Page 29 4. Troubleshooting 4-1-6. No Video (Component) Symptom Audio is normal but no picture is displayed on the screen. Check the Component source Major Check the Valencia checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Caution Make sure to disconnect the power before working on the PD board.
  • Page 30 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-23...
  • Page 31 4. Troubleshooting WAVEFORMS „ Eagle+ Out (Clk, H-Sync) Component Input (Y/Pb) 4-24...
  • Page 32 4. Troubleshooting 4-1-7. No Sound Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect.. Caution Make sure to disconnect the power before working on the PD board. No sound Check the sound source and Input a sound signal.
  • Page 33 4. Troubleshooting Location (Main) - TOP Location (Main) - BOTTOM 4-26...
  • Page 34 4. Troubleshooting WAVEFORMS „ Audio Input (Sign Wave) I2S Input (Clk, Data) Audio Amp Out (Sign Wave) 4-27...
  • Page 35 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 led1+ led1- led2+ led2- led3+ led3- led4+ led4- 4-28...
  • Page 36 4. Troubleshooting UC8000 PD BOARD DIAGNOSIS General PD board Diagnosis Disconnect the wire between PD board and Main board. Short Circuit 16pin and 18pin of CNM801 ▶ If the BLU on , we can consider PD board is acting correctly. LED Driver output diagnosis Measure voltage at CD9113, CD9213, CD9313, CD9413 which are criteria for judgement.
  • Page 37 4. Troubleshooting SMPS output diagnosis Measure voltage at below locations for SMPS output diagnosis BD1032 N240_OVD BD1040 SW_INVERTER BD1030 PWM_DIM_1 BD1231 PWM_DIM_2 BD1026 B18VS BD1028 SW_POWER BD1023 BD1024 BD1022 BD1025 DGND BD1021 DGND BD1020 B13V BD1018 B13V BD1029 B13V When 3D glass seems to have a trouble TV has a problem.
  • Page 38 4. Troubleshooting 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 4-31...
  • Page 39 4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment instruction Usually, a color LCD-TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. Use the specified test equipment or its equivalent. Correct impedance matching is essential.
  • Page 40 4. Troubleshooting 4-3. Factory Mode Adjustments 4-3-1 Entering Factory Mode To enter ‘Service Mode’ Press the remote -control keys in this sequence : - If you do not have Factory remote - control MUTE Power On 4-3-2 How to Access Service Mode Using the Customer Remote Turn the power off and set to stand-by mode Press the remote buttons in this order;...
  • Page 41 4. Troubleshooting 4-3-3 How to Access ‘EDID SUCCESS’ Mode At initial SERVICE MODE DISPLAY state, you’ll see ‘EDID SUCCESS’. - If not, go to Control EDID And follow the procedure. ON at EDID ON/OFF menu. EDID WRITE ALL menu, press ▶key of the remote control. After few seconds Success will appear. Failure appears, remove the PC cable and HDMI cable that connected to TV.
  • Page 42 4. Troubleshooting 4-3-4 Factory Data Option Factory Name Data Range Factory Reset Type 40A2UF8E/46A2UF8E/55A2UF8E/65L2UF8E Local Set Model UC8000 Tuner SEC_ISDB_T Light Effect Ch Table Country Front Color W-Milky Control Factory Name EDID Sub Option PDP Option Shop Option Asia Option SOUND Config Option EDID...
  • Page 43 4. Troubleshooting Sub Option Factory Name Data Range Factory Name Data Range Region Brazil Info Link Server Type development PnP Language TTX List RF Mute Time TTX Group RS-232 Jack Debug ND ADJ Support Watchdog 24Px4 Support WD COUNT Power Indicator Support Dimm Type BD Wise Support...
  • Page 44 4. Troubleshooting SOUND Factory Name Range Factory Name Range High Devi STA Amp Scale 0x5Eh Carrier Mute ON/OFF STA Woofer Scale 0x6Eh Volume Curve Type1 STA Speaker EQ ON/OFF Pilot Level High Thld 0x30h STA Sub Woofer Pilot Level Low Thld 0x10h STA EQ CheckSum TW 0xA86138...
  • Page 45 4. Troubleshooting Factory Name Data Range SCC Mode SSC ON/OFF SSC Input Data Sscc Const sSCC Hx sSCC Hy sSCC Lx sSCC Ly pSCC Const pSCC Hx pSCC Hy pSCC Lx pSCC Ly SCC Source Data Swap 4-38...
  • Page 46 4. Troubleshooting Factory Name Range Factory Name Range Test Pattern FBE Pattern Sel LOGIC Pattern Sel LOGIC Level Sel READ PRE_PATT_SEL READ POST_PATT_SEL Reading PC Mode LDAsic Pattern Sel FRCS Patt before DDR FRCS Patt after DDR FRCS PC Mode On/Off Failure Panel Auto Setting Press ▶...
  • Page 47 4. Troubleshooting Expert Factory Name Data Range N/D ADJ Source ADC/WB Factory Name ADC Target ADC Result White Balance Factory Name Data Range AV Calibration Failure Comp Calibraion Failure PC Calibration Success HDMI Calibration Success ADC Result Factory Name Range Factory Name Range 1st_AV_Low...
  • Page 48 4. Troubleshooting ADC Result Factory Name Data Range 1st_Y_GH 1st_Y_GL 1st_Cb_BH 1st_Cb_BL 1st_Cr_RH 1st_Cr_RL 2nd_R_L 2nd_G_L 2nd_B_L 2nd_R_H 2nd_G_H 2nd_B_H White Factory Name Data Range Balance Sub Brightness R-Offset G-Offset B-Offset Sub Contrast R-Gain G-Gain B-Gain Movie R-Offset Movie B-Offset Movie R-Gain Movie B-Gain 4-41...
  • Page 49 4. Troubleshooting Advanced Factory Name Picture FBE3 WB Movie SubSetting Color Mapping EPA 3D CH_VDEC AR_ADC YC_Delay Sharpness Sharpness_LNA LNA_Plus LD Asic Reading LED Driver FBE3 Factory Name Range Factory Name Range BM_slope LFUNC_OUT3 BM_start LFUNC_OUT4 BM_start_max LFUNC_OUT5 Lfunc_gain UFUNC_TH1 Hfunc_gain UFUNC_TH2 ACR-Offset...
  • Page 50 4. Troubleshooting WB Movie Factory Name Range Factory Name Range W/B MOVIE ON/OFF ON/OFF W2_Rgain MODE Dynamic W2_Bgain Color Tone W2_Roffset MSub Brightness W2_Boffset MSub Contrast Movie Contrast N_Rgain Movie Bright N_Bgain Movie Color N_Roffset Movie Sharpness N_Boffset Movie Tint W1_Rgain Movie Backlight W1_Bgain...
  • Page 51 4. Troubleshooting EPA 3D Factory Name Range Factory Name Range Standard Contrast V_3D PWM Delay_60 Standard Brightness V_3D ANA Delay_60 Standard Sharpness V_3D PWM Delay_50 Standard Color V_3D ANA Delay_50 Standard Tint Motion plus Delay Standard Backlight Home Delay 3D Contrast Shop Delay 3D Brightness CH_VDEC...
  • Page 52 4. Troubleshooting CH_DP Factory Name Range Factory Name Range BD_MAX_PERCENT_X BD_TOUCH_SUP_INV BD_MAX_PERCENT_Y DR_SIGMA_FIL_GAIN BD_DETAIL_AMT_MAX DR_GAIN_IN_ETE BD_TOUCH_SUPP SD2HD_Metric Sharpness Factory Name Range Factory Name Range Pre_GainH1 Post_GainPE2 Pre_GainH2 Post_GainPV1 Pre_GainH3 Post_GainPV2 Pre_GainV1 CTI_Gain Pre_GainV2 Pre_LTIH Pre_GainV3 LTI_H Post_GainH1 LTI_V Post_GainH2 PRE_CORING_H Post_GainH3 PRE_CORING_V Post_GainV1...
  • Page 53 4. Troubleshooting Sharpness_ Factory Name Range Factory Name Range S1_Pre_GainH1 S2_Post_GainH3 S1_Pre_GainH2 S2_Post_GainV1 S1_Pre_GainH3 S2_Post_GainV2 S1_Pre_GainV1 S2_Post_GainV3 S1_Pre_GainV2 S2_Post_GainPE1 S1_Pre_GainV3 S2_Post_GainPE2 S1_Post_GainH1 S2_Post_GainPV1 S1_Post_GainH2 S2_Post_GainPV2 S1_Post_GainH3 S3_Pre_GainH1 S1_Post_GainV1 S3_Pre_GainH2 S1_Post_GainV2 S3_Pre_GainH3 S1_Post_GainV3 S3_Pre_GainV1 S1_Post_GainPE1 S3_Pre_GainV2 S1_Post_GainPE2 S3_Pre_GainV3 S1_Post_GainPV1 S3_Post_GainH1 S1_Post_GainPV2 S3_Post_GainH2 S2_Pre_GainH1 S3_Post_GainH3...
  • Page 54 4. Troubleshooting Factory Name Range Factory Name Range EmitOn 2D3D Depth4 EmitStartPosi60 2D3D Depth5 EmitStartPosi50 2D3D Depth6 EmitStartPosi48 2D3D Depth7 3DSyncVstart60 2D3D Depth8 3DSyncVend60 2D3D Depth9 3DSyncVstart50 2D3D Depth10 3DSyncVend50 N240 PWM Delay_60 3DSyncVstart48 N240 ANA Delay_60 3DSyncVend48 N240 PWM Delay_50 2D3D Focus N240 ANA Delay_50 2D3D Depth1...
  • Page 55 4. Troubleshooting FRCQ Factory Name Range Factory Name Range Option SSC_OnOff Film_Low_SD SSC_Width Film_Medium_SD SSC_Freq Film_High_SD FMD_Demo Film_Low_HD CSB Vertical Film_Medium_HD CSB Horizontal Film_High_HD X_VStabStatVid Video_Judder_Low X_VStabStatF Video_Judder_Med X_VStabCorF Video_Judder_High X_VStabSensF Hangup Detection X_HaloSizStatVid Q LVDS Sequence X_HaloSizStatF Q LVDS Format X_HaloSizCorF Q LVDS bit width X_HaloSizSensF...
  • Page 56 4. Troubleshooting 4-4. White Balance - Calibration 4-4-1 White Balance -Calibration ADC/WB AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-4-2 Service Adjustment You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration „ Adjust spec. 1.
  • Page 57 4. Troubleshooting Method of Color Calibration (AV) „ 1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port 2) Press the Source key to switch to "AV1" mode 3) Enter Service mode 4) Select the "ADC/WB" and "ADB" menu 5) Select the "AV Calibration"...
  • Page 58 4-5. Servicing Information 4-5-1 Upgrading the Software Samsung may offer upgrades for TV’s firmware in the future. Please contact the Samsung call center at 1-800- SAMSUNG (726-7864) to receive information about downloading upgrades and using a USB drive. Upgrades will be possible by connecting a USB drive to the USB port located on your TV.
  • Page 59 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.
  • Page 60 1) The message "Does the problem still exist with this sound test?" is displayed. 2) Press "Yes". This is a TV SET problem. 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.

This manual is also suitable for:

Un46c8000xmUn55c8000xmUn65c8000xm