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Videocon VKR50QX-ZSA Service Manual
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Videocon VKR50QX-ZSA Service Manual

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SERVICE MANUAL
1. Caution
2. Specification
3. Alignment Procedure
4. Block Diagram
5. Scheme Diagram
6. PCB Layout
7. Trouble Shooting
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing, by
the constant improvement of product
Videocon
VKR50QX-ZSA
-AP
2
6
7
2
2
27

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Summary of Contents for Videocon VKR50QX-ZSA

  • Page 1 Videocon SERVICE MANUAL VKR50QX-ZSA 1. Caution 2. Specification 3. Alignment Procedure 4. Block Diagram 5. Scheme Diagram 6. PCB Layout 7. Trouble Shooting This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by...
  • Page 2 SCHNEIDER ELECTRONICS GMBH-GERMANY 1. CAUTION CA UTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UT ION : T O RE DUCE TH E RIS K OF CA U T ION ELECTR ICA L SHOCK, DO NOT RE MOVE COVER (OR BACK).
  • Page 3 SCHNEIDER ELECTRONICS GMBH-GERMANY IMPORTANT SAFETY INSTRUCTIONS CAUTION: Read all of these instructions. Sa ve these instructions for later use . Follo w all W arnings and Instructions marked on the audio equipment. 1. Read Instructions-All the safety and operating instructionsshouldbe read before the productis operated. 2.
  • Page 4 SCHNEIDER ELECTRONICS GMBH-GERMANY PROTECTION AND LOCATION OF YOUR SET Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall outlet and refer servicing to qualified service personnel.
  • Page 5 SCHNEIDER ELECTRONICS GMBH-GERMANY OPERATION OF YOUR SET 18. This television set should be operated only from the type of power source indicated on the marking label.If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from battery power, refer to the operating instructions.
  • Page 6 PRODUCT SPECIFICATION RELEASE Model:VKR50QX-ZSA /MS901K-AP/CS1STA Version：1.0 Issued On: 2014-05-06 Basic Information USB Device Media Format Product Type LCD Smart TV Music MP3, WMA, AC3 Chassis MS901K-AP Picture JPEG, BMP, PNG Dual Core A9 1.2GHz H.264, RM/RMVB, XviD, MPEG1, MPEG2, Video...
  • Page 7 Pre-Installed Application List Special Function TV Tube Popular VOD, Powered by YouTube Connect smart phone to TV and control the nScreen TV with Phone; Push the media files in phone TV Tweets Social Apps, Powered by Twitter to TV and enjoy big screen picture quality. Facebook Social Apps Frequency...
  • Page 8 GOC 生产技术部电路分析组 SD card HDMI2 USB2 USB1 HDMI1 SD 卡 KLOK_R USB 3.0 /MHL KLOK_L HDMI/MHL switch CAM card 摄像头 CAM 卡 AV OUT Flash_6M40 空鼠 USB hub WIFI EMMC 16G DDR 1G*2 6M40 YPbPr 串口 2 DDR 1G*2 MS901 6M40 DDR 2G MK970...
  • Page 9 GOC 生产技术部电路分析组 5 / 38...
  • Page 10 Factory Test & Alignment Specification For MS801-AP Series (V1.0) FPD CENTER Factory Test & Alignment Specification (FTAS) for MS901K-AP Series Version 1.0 惠秦辉 PREPARED BY : DATE : 2013-07-02 APPROVED BY: DATE : Page 1 of 17...

  • Page 11: Revision History

    Factory Test & Alignment Specification For MS801-AP Series (V1.0) Disclosure The information contained in this document is proprietary to TCL SZ FPD lab and shall not be disclosed by the recipient to third persons without the written permission of the team leader or GM of R&D.
  • Page 12 Factory Test & Alignment Specification For MS801-AP Series (V1.0) These chassis are designed for (AP) markets Ready for Smart TV. The main chip is Asia & Pacific from Mstar and supports below features matrix: Class Item MS901K-AP CABLE&ANTENNA ( PAL DK/BG/I、NTSC M、SECAM DK/BG) HDMI (480i/p, 576i/p, 720p 1080i/p, up to 4K*2K ,with HDCP)

  • Page 13: Software Upgrades

    Factory Test & Alignment Specification For MS801-AP Series (V1.0)  All voltages have to be measured with respect to ground, unless otherwise stated  All final tests have to be done on a complete set including LCD panel in a room with temperature of 25+/-7°C ...

  • Page 14: Functional Test

    Factory Test & Alignment Specification For MS801-AP Series (V1.0) In case of “Design mode hotkey” is enabled, press “Return” to enter Main Menu. To modify Project ID, you need to go through “Service menuProject ID”, then press Left or Right key to select suitable ID (Project name is dynamically refreshed).
  • Page 15 Factory Test & Alignment Specification For MS801-AP Series (V1.0) Signal: VGA: 5 MOSAIC YPBPR: 100% Color Bar 100% Color Bar 5 MOSAIC See Appendix  “Factory Menu Description” 1.6. DDC & EDID Test It’s necessary to check whether the correct EDID is downloaded. 1.7.

  • Page 16: Factory Menu

    Factory Test & Alignment Specification For MS801-AP Series (V1.0) in-depth test can be performed faster using suitable UART/IR commands following SIACP requirements. SW will internally manage Network ID (NID) flag controlling all MAC Address /Device ID/User ID integrity to facilitate PA screening further. See Appendix ...
  • Page 17 Factory Test & Alignment Specification For MS801-AP Series (V1.0)  Calibration of Color Temperature According to TCL standards, the color temperature and white reference coordinates of LCD like the following table: (This standard is based on CA-310 color temperature meter as a reference) White balance Every model White balance only need to adjust Normal color temperature of HDMI channel, other channel didn’t need to adjust color temperature, the software have set up color...
  • Page 18 Factory Test & Alignment Specification For MS801-AP Series (V1.0) Click “config”, check the parameter settings as follow:  Then click “Connect”, it will display OK.  Page 9 of 17...
  • Page 19 Factory Test & Alignment Specification For MS801-AP Series (V1.0) Click “Read”, select the correct file:  Next, click on “Auto” menu, ensure that “ReConnect” is not selected  Finally, click “Run”, it begins programming bin file, when programming success, it will ...
  • Page 20 Factory Test & Alignment Specification For MS801-AP Series (V1.0) The second method, using USB to upgrade mboot: Download the bin file “V8-M901K01-LB1V***.bin” to the root directory of your USB device,  and change the file name to “mboot.bin”. Ensure the root directory of USB device has no any other bin files.
  • Page 21 Factory Test & Alignment Specification For MS801-AP Series (V1.0) After updating, the TV set will reset automatically.  Note: If there’s already other “V8-M901K01-LF1V***”.zip into USB root, it needs to be deleted or renamed Appendix  “How to change ProjectID with RCU” Process following subsequence IR codes to change project ID: ...
  • Page 22 Factory Test & Alignment Specification For MS801-AP Series (V1.0) 0-Factory hotkey submenu Item Sub-item Value Note Factory OFF：hotkey is invalid Off/On hotkey ON ：hotkey(Return key) is availability 1-Warm-Up submenu Item Sub-item Value Note Select panel On with left/right key, Press “EXIT”...
  • Page 23 Factory Test & Alignment Specification For MS801-AP Series (V1.0) Item Sub-item Value Note Normal Warm and cool value is relative to Normal Color Temp /Warm/Cool one. Normal is the default Tone mode R Gain 0-255 R White balance (0-255 for gain) G Gain 0-255 G White balance (0-255 for gain)
  • Page 24 Factory Test & Alignment Specification For MS801-AP Series (V1.0) Select to choose the things you want to USB Clone Mode clone Press “Right” key to copy the data(WB, TV TO USB Clone ADC, picture setting, etc) to USB Press “Right” key to set the data(WB, USB TO TV ADC, picture setting) from USB 9-Preset Factory Channel submenu...

  • Page 25: Network Connection

    Factory Test & Alignment Specification For MS801-AP Series (V1.0) data-base .so that the data is verified . Appendix ”NETWORK CONNECTION AND TEST” 1.Network connection You can set up your TV so that it can access the Internet through your local area network (LAN) using a wired or wireless connection.
  • Page 26 Factory Test & Alignment Specification For MS801-AP Series (V1.0) U402 13-W25Q16-00B(CPP) M boot: V8-M901K01-LB1V***.bin U602 13-THGB4G-5DB(CPP) Main Software： V8-M901K01-LF1V**8.bin U1201 13-W25Q32-FVB(CPP) 6M40 software: V8-M901K01-LM1V001 2. The MAC Address/DEVICE ID/ HDCP KEY must be upgrade by debug port into U402. Page 17 of 17...

  • Page 27: Troubleshooting

    Trouble shooting 1、 Can not switch on： no switch on Check 3.3V/12V/24V of power supply Check PW Only 3.3V Check signal P—ON， Check DC-DC DIMBL—ON of main IC link part,check to PW Check the peripheral circuit of mail IC,check solder of Check reset Check IIC bus main IC,check data fo NVM...
  • Page 28 2、abnormal picture ： Abnormal picture Individual signal source All signal source bad Check the path with this Check panel ID？ signal source Check LVDS signal to main Check the peripheral circuit IC？check LVDS cable? of mail IC,updating SW,reset NVM,replace main IC Check crystal frequence？...

  • Page 29: Abnormal Sound

    3、 Abnormal sound： Abnormal sound Individual sound Check all sound signal source source Check the sound signal Check sound IC link to main IC Check the power of Check the peripheral Check wave filter and sound IC circuit of main IC,SW speaker？...
  • Page 30 R050 3D_CTRL C020 1V5_DDR2 C073 C072 R008 DIM_OUT 3V3SB DIM_DC 2.2U 0.1U 2.2U C062 L016 24V/12V 24V/12V_1 C026 100P D103 1V5_DDR 220PF 3V3SB CMS06 C001 @max 2A DIM_DC R009 R048 R005 U001 R011 C064 C065 100K 150K PGND P001 COMP C027 24V/12V GND1...
  • Page 31 TU_3V3 TUNER_VCC DEMO_3V3 ATTENTION LT6:THE GREEN MARK IS FAR AWAY THE IC! U102 AS1117-3.3 U101 TU_3V3 DEMO_3V3 AS1117-3.3 Caution: TU_3V3 must be from LDO TU_3V3 CT19 CT20 CT22 CT23 CT24 CT18 CT21 @300mA C116 C114 C115 100P C149 C150 C147 C148 0.22U 0.1U...
  • Page 32 USB3.0 R254 C241 R242 U_D- 0.1U U_SSTXN USB3_D-_IN U_SSRXN USB3_SSTX-_IN USB3_SSRX-_IN U_D+ R255 U_SSTXP Close to IC C242 USB3_D+_IN U_SSRXP USB3_SSTX+_IN R243 USB3_SSRX+_IN 0.1U F203 F213 F201 F215 F214 F202 R208 YPBPR_IN GND-Y R209 C207 HD1_R_IN &AV2_IN F204 C248 560P R210 P205 U_SSTXP...
  • Page 33 HB_5V 6M40_5V D301 BAT54C HA_5V R475 6M40_5V C301 H_ARC H_ARC_OUT AVDD5V_CD R381 U301 HA_HPD HB_5V R378 R379 VOUT R327 HB_HPD HA_5V R377 HB_5V GND5 R303 R460 100R H3_SDA CD_SENSER_B R328 GND5 C360 HA_SDA DDCDA 100R H2_SDA RT9721 HB_SDA H3_SCL R304 DDCDA DDCCLK HA_SCL...
  • Page 34 1V5DDR3 1V5_DDR U400 close to MSTIC U400 PCM_D0 AJ28 AG15 TS_MDO0 PCM_D0 TS0_D0 PCM_D1 AH28 AJ15 TS_MDO1 C443 VGA_RED_IN- PCM_D1 TS0_D1 PCM_D2 AJ29 AH15 TS_MDO2 C440 C441 0.1U C445 RIN0M VDDC1V15 VGA_RED_IN PCM_D2 TS0_D2 0.1U PCM_D3 AH26 AG11 TS_MDO3 RIN0P VGA_GRN_IN- PCM_D3 TS0_D3...
  • Page 35 1V5_DDR 1V5_DDR USE 2G USE 2G U502 U503 A-DDR3-A0-T1 A-DDR3-DM1 A-DDR3-A1-T1 A-DDR3-DQS1 DQSU A-DDR3-A0-T2 A-DDR3-DM3 A-DDR3-A2-T1 VDDQ DQU5 DQU7 DQU4 VDDQ A-DDR3-DQS1B DQSU A-DDR3-A1-T2 A-DDR3-DQS3 A-DDR3-A3-T1 VDDQ DQU5 DQU7 DQU4 VDDQ DQSU A-DDR3-A2-T2 A-DDR3-DQS3B A-DDR3-A4-T1 VSSQ DQSU# DQU6 VSSQ A-DDR3-DQ8 DQSU DQU0 A-DDR3-A3-T2...
  • Page 36 PCM_CD2_N P601 PCM_CD1_N PCM_CD_N PCM_CD1_N PCM_D3 L 0V VCC-PCMCIA TS_MDO3 PCM_D4 VCC-PCMCIA TS_MDO4 PCM_D5 C633 EM_3V3 TS_MDO5 PCM_D6 U601 TS_MDO6 PCM_D7 R608 TS_MDO7 PCM_CE-N VOUT H 2.5V PCM_A10 R605 PCM_OE_N R604 470R LOW:OFF R612 R610 PCM_IORD_N PCM_A11 R603 470R PCM_IOWR_N PCM_A9 HIGH:ON VCC-PCMCIA...
  • Page 37 C721 2200P AVSS C722 C704 0.047U R703 C723 P701 470R L704 C705 4700P 0.033U C706 22UH 470R R704 0.047U 24V/12V C740 0.01U R720 C707 4700P V_AUDIO 3.3VA C741 FAULT 0.01U R721 I2S-MCLK AVDD PGND_AB2 FAULT PGND_AB1 L705 R708 R709 MCLK OUT_B C726 24V/12V...
  • Page 38 P801 NET_TX1P R810 R811 U802 NET_TXC U801 NET_TX1N P0.0 P1.2 NET_TX1P TX1P NET_TX1N P1.3 P1.1 TX1N NET_RX1P RX1P P1.0 NET_TXC JM_CS R820 MK_3V3 NET_RX1P 100R JM_DA R821 R812 R813 NET_RX1N 100R P0.4 C803 RX1N NET_RXC JM_CK R822 NET_RXC NET_RX1N 100R P0.3 0.1U P0.1...
  • Page 39 USB0_D-_IN USB0_D-_IN USB3-IN USB0_D+_IN USB3_5V USB0_D+_IN USB2_D-_IN USB2_D-_IN P1001 +4.8V USB_5V USB_5V KARA_4V8 USB_5V USB2_D+_IN VCC-1 USB2_D+_IN R1028 USB3_D- USB1_D-_IN DNEG-1 R1029 USB3_D+ L1001 220R USB1_D+_IN DPOS-1 C1035 GND-1 F1001 C1037 C1036 C1030 C1034 F1002 0.1U 0.1U 0.1U 0.1U USB3_GND MNT-HOLE1 USB_3V3 MNT-HOLE2...
  • Page 40 DDR_1V5 6M40_5V L1102 R1134 @max 5A +1.5V_DDR_S L1104 VCORE R1124 VCORE C1138 C1139 0.68UH C1137 Need 1000mA U1104 6M40_5V C1119 C1120 0.1U PGND C1144 R1129 100P 100K C1147 C1149 AGND C1146 (vin=2.7V~6V) 220K C1140 R1101 R1130 C1116 C1117 R1115 MP2143 100K MP8606DL 0.1UF...
  • Page 41 U1202 VBY0N A0P_/_MLVB4_0P_/_VBY0N VBY0P VCORE +3.3V_6M40 A0M_/_MLVB4_0N_/_VBY0P VBY1N VCORE A1P_/_MLVB4_1P_/_VBY1N VBY1P U1202 Reset A1M_/_MLVB4_1N_/_VBY1P U1202 VBY2N R1208 RA0N A2P_/_MLVB4_2P_/_VBY2N U1202 AG17 VBY2P VSS8 VSS112 RA0P A2M_/_MLVB4_2N_/_VBY2P AA10 AH17 R1209 AJ10 VBY3N VDDC_1V5 VSS9 VSS1 VSS1 VSS113 RA1N ACKP_/_MLVB4_CKP_/_VBY3N AJ17 VBY3P RA1P ACKM_/_MLVB4_CKN_/_VBY3P VDDC_1V6...
  • Page 42 U1202 C-CSB2 C_DDR3_CSB2 RP1301 C-DDR3-ODT-T1 C_DDR3_ODT C_DDR3_ODT C-DDR3-ODT-T2 C_DDR3_A0 D_DDR3_A0 RP1337 RP1348 A_DDR3_A0 B_DDR3_A0 D_DDR3_DQ2 D-DDR3-DQ2 D_DDR3_DQ25 D-DDR3-DQ25 +1.5V_DDR_S C_DDR3_A1 D_DDR3_A1 A_DDR3_A1 B_DDR3_A1 C-CSB1 C_DDR3_CSB1 C_DDR3_A2 D_DDR3_A2 Use "MT41J64M16JT-125" on PCBA A_DDR3_A2 B_DDR3_A2 D_DDR3_DQ0 D-DDR3-DQ0 D_DDR3_DQ28 D-DDR3-DQ28 C_DDR3_A3 D_DDR3_A3 RP1319 C_DDR3_BA0 C-DDR3-BA0-T2 DDR3 1G bit 1600MHz...
  • Page 43 VBY0N TX_VBY0N C1410 (12) VBY0N VBY0P 0.1U TX_VBY0P C1411 (12) VBY0P 0.1U TX_VBY1N VBY1N C1412 (12) VBY1N 0.1U TX_VBY1P VBY1P C1413 (12) VBY1P 0.1U TX_VBY2N VBY2N C1414 (12) VBY2N 0.1U TX_VBY2P VBY2P C1415 (12) VBY2P 3D_SYNC_O 0.1U P1401 TX_VBY3N 3D_SYNC_I VBY3N C1416 (12)

This manual is also suitable for:

Ms901k-ap