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Qls 21TS1020 Service Manual

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SERVICE MANUAL
MODEL: 21TS1020
CHASSIS: 3P66SN

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Summary of Contents for Qls 21TS1020

  • Page 1 SERVICE MANUAL MODEL: 21TS1020 CHASSIS: 3P66SN...

  • Page 2: Technical Specifications, Connections, And Chassis Overview

    Technical Specifications, Connections, and Chassis Overview EN 1 3P66 1. Technical Specifications, Connections,and Chassis Overview Index of this chapter Technical Specifications Connection Overview Chassis Overview Note: Data below can deviate slightly from the actual situation, due to the different set executions. 1.1.Technical Specifications Chassis 3P66E(SCART MODE)
  • Page 3 Technical Specifications, Connections, and Chassis Overview 3P66 EN 2 Subwoofer Out Mute sounds effect No signal auto standby 15 MIN 15 MIN 15 MIN 15Min Timer Off/On Sleep Timer Rename channel Favorite channel Biological Clock Calendar Program prearrange Child Lock Quick view Hotel mode Clock...
  • Page 4 EN 3 3P66 Technical Specifications, Connections, and Chassis Overview 1.2. Connections Connecting the Aerial(or Cable Television Network) To view television channels correctly ,a signal must be received by the set from one of the following sources: *An outdoor aerial *A cable television network 75 ANT Plug the aerial or cable network input cable to Cable...
  • Page 5 Technical Specifications, Connections, and Chassis Overview 3P66 EN 4 STEREO AV & YUV AV OUT AV1 IN YCbCr IN VIDEO VIDEO LEFT LEFT 75 ANT Cable RIGHT RIGHT Television Network AV1 IN VIDEO Decoder/ LEFT video game device RIGHT Video disc player YCbCr IN AV1 IN VIDEO...
  • Page 6 3P66 Technical Specifications, Connections, and Chassis Overview EN 5 PERIPHERAL EQUIPMENT CONNECTIONS There is a wide range of audio and video equipment that can be connected to your TV. Connection diagrams at the end of this section show you where the different equipment should be connected at the backside of the TV.
  • Page 7 Technical Specifications, Connections, and Chassis Overview 3P66 EN 6 1.3. ChassisOverview CRT PANEL MAIN POWER SUPPLY CHASSIS LINE DEFLECTION PANEL FRAME DEFLECTION TUNER IF AV I/O AUDIO / VIDEO VIDEO IF SOUND IF CPU CONTROL AUDIO AMPLIFIER...

  • Page 8: Safety Instructions

    3P66 Safety Instructions EN 7 2.Safety Instructions 1. Power-supply cords should be routed so that they are not likely to be walked on or nagged by items placed upon or against them. Pay particular attention to cords at doors, plugs, receptacles, and the point where they exit from the product.
  • Page 9 MechanicalInstructions 3P66 EN 8...
  • Page 10 3P66 Service Modes EN 9 4. 3P66SN Service Modes 4.1. Enter and exit service mode 4.1. Enter and exit service mode ： a. Enter "factory service mode" Press "MENU","Q.VIEW" and "PP" in turn. b. Enter "design service mode" : After entering "factory service mode",select"SC"item,then press "8","9"keys. (Normally "design service mode"is not needed for production line.) c.
  • Page 11 Service Modes EN 10 3P66 b. After TV operate normally, use 3P66SN Latam RC to perform Auto-search or select CH03. c. Enter factory mode (exact details refer to 3P66SN alignement instruction), use Multimeter FLUKE 87 Ⅲ to measure at J852 to achieve a reading of 0.25 0 .02 Vrms. d.
  • Page 12 3P66 EN 11 Service Modes (1) Page 1 Service setting Service setting OSD display OSD display Description Description Value Default Value Default EW parabola/width 50Hz EW parabola/width 0…63 EW parabola/width PW-60 60Hz EW parabola/width 0…63 EW trapezium 50Hz EW trapezium 0…63 EW trapezium TC-60...
  • Page 13 Service Modes EN 12 3P66 (3) Page 3 Service setting Service setting OSD display OSD display Description Description Value Value Default Default AGC Take over AGC Take-over 0…63 Adjustment Vg2 voltage 0…63 (4) Page 4 Service setting Service setting OSD display OSD display Description Description...
  • Page 14 3P66 EN 13 Service Modes (5) Page 5 Service setting Service setting OSD display OSD display Description Description Value Value Default Default Soft brightness S-BRI Soft brightness 0…63 Soft color S-COL Soft color 0…63 Soft contrast S-CON Soft contrast 0…63 Soft sharpness S-SHA Soft sharpness...
  • Page 15 Service Modes EN 14 3P66 BKS&BSD Register BKS&BSD Register BKS(Black stretch switch): setting 0:off 1:on BSD(Black stretch depth): 0: 15 IRE 1: 30 IRE BKS=1(default) 0: BSD=0 1: BSD=1 Blue screen Blue screen(effect 0: No blue screen when reopen TV) 1: blue screen Video mute Video mute...
  • Page 16 3P66 EN 15 Service Modes (7) Page 7 Service setting Service setting OSD display OSD display Description Description Value Value Default Default BTSC mode force BTSC-MODE MODE 0…2 selection BTSC-ST Stereo noise limit 0…15 BTSC-SP SAP noise limit 0…15 BTSC-LI Sound input level 0…15 BTSC-A1...
  • Page 17 Service Modes EN 16 3P66 PAL-N bank PAL-N DCXO PAL-N DCXO_CAP 0…3 switch for DCXO setting 1 of volume VOL1 VOL-1 sound curve 0…63 Black current stabilize 0: active 1: not active 0: 123 degree DSA Register Dynamic skin tone angle 1: 117 degree OSD Position...
  • Page 18 3P66 EN 17 Service Modes Standly remember R-POWER Power station 0:Direct bootstrap 1: Standby 2: remember Last state Logo LOGO Logo switch 0: no LOGO 1: have LOGO Type of LOGO TYPE Type of LOGO 0:normal LOGO 1:Continental Electric 8th key of board KEY8 8th key of board 0: no 8...
  • Page 19 Service Modes EN 18 3P66 Brightness of black Brightness of black 0…63 balance balance YUV) Contrastness of black Contrastness of black 0…63 balance balance(TV and YUV) Brightness of white Brightness of white 0…63 balance(TV and YUV) balance Contrastness of white Contrastness of white 0…63 Balance...
  • Page 20 3P66 EN 19 Service Modes 0: not active 0(MTS) DMPH register DMPH DMPH 1: active 1(noMTS) Bass frequency CBAF0&CBAF1 CBAF0-1 0..3 selection CTRF0&CTRF1 CRTF0-1 Treble frequency 0..3 selection Chroma bandpass 0: Fsc CB register center frequency 1: 1.1 F sc MTXF&MUS&MAT MATRIX 0:NTSC-Japanes...
  • Page 21 Service Modes EN 20 3P66 AGNE1&AGNE0 AGNE Extended gain 0: normal 1: +3.8dB settings for FM 2: -6dB demodulator 3: -3dB FMWS1&FMWS2 FMWS Window select for 0: 100kHz FM demodulator 1: 225kHz 2: 450kHz 3: 900kHz Bypass sound BPB2 BPB2 0: active bandpass filter 1: bypass...
  • Page 22 3P66 EN 21 Service Modes Menu horizontal MENU-H Menu horizontal 0…63 position position DSGLS register DSGLS Extra gain selection 0: 0dB loudspeaker outputs 1: +6dB (13) Page 13 Service setting Service setting OSD display OSD display Description Description Value Value Default Default Slicing level...
  • Page 23 Service Modes EN 22 3P66 (14) Page 14 Service setting Service setting OSD display OSD display Description Description Value Value Default Default NVM version Char0 48…255 NVM version Char1 48…255 NVM version Char2 48…255 NVM version Year 8…10 NVM version Month 0…12 NVM version...
  • Page 24 3P66 EN 23 Service Modes Black balance Y-BG Black balance of -32…31 YUV (Green) Black balance Y-BB Black balance of -32…31 YUV (Blue) White balance Y-WR Black balance of -32…31 YUV (RED) Black balance Y-WG Black balance of -32…31 YUV (Green) Black balance Y-WB...
  • Page 29 EN 28 3P66 IC Data Sheet IC601(POWER SUPPLY)STR-W6554A Block Diagram:...
  • Page 30 IC Data Sheet 3P66 EN 29 IC101(OTP SIGNAL PROCESSOR FOR CRT TV)TDA11106PS N3 Block Diagram:...
  • Page 31 EN 30 3P66 IC Data Sheet...

  • Page 32: Troubleshooting

    Troubleshooting EN 31 3P66 8.Troubleshooting The following problems do not always indicate a hardware failure. Therefore, please use the troubleshooting guide below before calling for repair service. If, after following the guide none of the remedies work, unplug the TV and call for service.