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akira CT-21LPS1MKI/ANZ Service Manual

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Summary of Contents for akira CT-21LPS1MKI/ANZ

  • Page 2 CHASSIS: TD171 MODEL: CT-21LPS1MKI/ANZ Model No: CT-21LPS1MKI-ANZ Version 1.0...

  • Page 3: Table Of Contents

    CONTENT SAFETY NOTICE ........................... 4 GENERAL DESCRIPTION ........................5 TECHNICAL SPECIFICATION ......................5 GENERAL SPECIFICATION ......................... 6 CHASSIS BLOCK DIAGRAM ....................... 7 FAULT FINDING TREES........................8 IC BLOCK DIAGRAM ......................... 15 ADJUSTMENT MODE ......................... 64 EXPLODED VIEW AND PART LIST ....................66 BOM LIST .............................

  • Page 4: Safety Notice

    SAFETY NOTICE SAFETY PRECAUTION 1. An isolation transformer should be connected in the power line between the receiver and the AC line when a service is performed on the primary of the converter transformer of the set. 2. Comply with all caution and safety-related notes provided on the cabinet back, inside the cabinet, on the chassis or the picture tube.

  • Page 5: General Description

    GENERAL DESCRIPTION AKTP01/02 chassis series are applied A14T02/A14T02a respectively which uses mainly TOSHIBA’ advanced UOC-ultimate chip TMPA8803/8821/8851 and I2C-bus controlled IC with combination of micro controller and small signal processor, the TMPA8803/8821/8851 series feature high-integration, high performance-to-price ratio and high-reliability and advanced functions with fewer external components, which provide much convenience for manufacturing and technical service.

  • Page 6: General Specification

    GENERAL SPECIFICATION 14” Power consumption 21” 100W Receive system DK/BG Color system PAL/ SECAM/ NTSC Vision intermediate frequency 38.9MHz 5.5 MHz(B/G) Inter-carrier frequency 6.5MHz(D/K) Chroma if frequency PAL 34.47/ 35.32MHz Antenna type DIN TYPE 75 Ohm VHF-L: 46.25-161.25MHz Channel receiving VHF-H: 168.25-463.25MHz UHF: 471.25-855.25MHz Tuning system...

  • Page 7: Chassis Block Diagram

    CHASSIS BLOCK DIAGRAM Model No: CT-21LPS1MKI-ANZ Version 1.0...

  • Page 8: Fault Finding Trees

    FAULT FINDING TREES 1. Three-None (no raster, no picture, no sound) This failure is mainly caused by big-power circuit such as power supply, horizontal scanning, vertical scanning. The detail checking and repairing steps are as follow. Test the voltage of C563 115V ＜...
  • Page 9 2. Two-None (no picture, no sound) The failure shows that the set does not display the picture but it has noise wave or blue background or OSD on the screen. This means that the circuits of power supply, horizontal scanning, vertical scanning and video amplification are normal and they are not considered in the repairing.
  • Page 10 ＜ 2V Exam the voltage of “ AGC ” on A101 without antenna ＞ 3.8V Check R119, R213, R101,C104,A101,N204 Test the voltage on pin 14,17,25,29, 49 of N204 Check C311, C306, 302, C209, C204, C238, Check N902, N204, C311, C306, 302, Test the voltage on pin 44 and pin36 of N204 C230 C209, C204, C238, C230...
  • Page 11 b. No sound In this kind of failure, first of all we should observe if there is the picture on the CRT. It proves the small signal circuit to work correctly with the picture on the CRT and we only check the sound signal processing and sound amplification circuit.
  • Page 12 3. Only horizontal line in the middle of the screen: If vertical deflection circuit does not work, this kind of failure will happen. In deflection yoke, there only has horizontal sweeping, the electron beam in the CRT only moves in the horizontal orientation, so form this failure. (While checking horizontal and vertical deflection circuit’s failure, we have better to use an oscilloscope.) Abnormal The waveform on the pin 16 of N204...
  • Page 13 4. Only vertical line in the middle of the screen This is a dangerous failure. It probable causes flashover and smoking inside the set. Don’t let your TV work for a long time as this failure appears. Because the electron beam can not move in the horizontal orientation, the failure should be in the horizontal deflection circuit.
  • Page 14 6. No OSD (On Screen Display) This failure is usually cause by the circuit of character generated and located. Most of reasons are that the horizontal and vertical flyback pulse signals do not come to UOC. We can judge this failure by measuring the wave of the character in an oscilloscope. The detail checking and repairing steps are as follow: No OSD Check the wave on the pin 4 of FBT and N402 pin1...

  • Page 15: Ic Block Diagram

    IC BLOCK DIAGRAM IC 204 (I C BUS-UOC Toshiba One Chip-A8851CPNG6EG1) Note: Login Factory Mode: Chassis Key Location Step to enter into factory Mode Remark TV front Panel 1/ Press and hold key “V-“ 8821 8823 User Remote 2/ After Volume=0, Press Key “Display” 8851 8853 User Remote...
  • Page 16 B. PIN NAME: NO. Pin name Function BAND data output 1 (VS)/EyeCare or X-ray BAND1 (VS)/EyeCare or X-ray (FS) (FS) BAND2（VS）/ DEGAUSSING BAND data output 2（VS）/ DEGAUSSING Key input GND connection RESET Reset signal input 8 MHz oscillator connecting XOUT 8 MHz oscillator connecting TEST GND connection...
  • Page 17 A. BLOCK DIAGRAM: SONUD PROCESSOR TA1343 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 18 IF in Input terminals for IF signals. RF AGC Output terminal for RF AGC control level. TV YC Vcc Vcc terminal for Y/C circuit. Supply 5V. Output terminal for CVBS or Y signal selected Monitor out by BUS(Video SW). Terminal to be connected with Black Det filter Black Det for black stretch.
  • Page 19 C/ SYSTEM: 1．REMOTE CONTROL For Example: If Pin19 with diode CUSL CUSH 2. BAND BAND1（Pin1） BAND2（Pin2） VHF L VHF H Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 20 D. Mode 1.MOD(30) Bit7: No Use Bit6-4:IF Frequency Bit6 Bit5 Bit4 PIF Freq. 58.75MHz 45.75MHz 38.9MHz 38MHz Bit3,2:AKB MODE Bit1,0:Cutoff Gain×10 2.OPT(C4) Bit7: Mute of AV Switch Key 0: Port Mute ON 1: No Port Mute Bit6: Monitor Sync 0: Always TV Sync 1: Monitor Sync Bit5: TINT polarity select 0: Red...
  • Page 21 5. MOD0(82) Bit7-6： Shop-out Setting Bit7 Bit6 SHOP-OUT No Use Bit5：Pin59 PWM 0：No Use 1：Used Bit4：Pin2 DEGAUSSING 0：No Use 1：Used（FS status） Bit3：Eye Care 0: No Use 1：Used（FS status） Bit2：SECAM 0: No Use 1：Used Bit1：Be used to VCO adjust 0: No Use 1：Used (This Bit Must Set 1) Bit0：X-Ray protect(Pin1) 0：No Use 1：Used（FS status and Eye Care no use）...
  • Page 22 8.LANG: English/ Arabic/ Farsi /Indonesian /Vietnamese /Spanish /French /Turkish /Russian(00) Bit7: Arabic 0: No Use 1：Used Bit6: Farsi 0: No Use 1：Used Bit5: Indonesian 0: No Use 1：Used Bit4: Vietnamese 0: No Use 1：Used Bit3: Spanish 0: No Use 1：Used Bit2: French 0: No Use 1：Used...
  • Page 23 HITZS: 60Hz ZOOM SIZE (00) HITWS: 60Hz WIDE SIZE (00) 12. NADJ(16) Noise reducer adjustment 13. VPL(CE) X-Ray protect adjustment 14. VOLM(64) HOTEL MODE: Volume maximal limit 15. LOGO(60) Bit7: DVD control option 0：same to AV1 1：same to AV2 Bit6: Pin59 control option 0：DVD control 1：50/60Hz control（50Hz: L/60Hz: H）...
  • Page 24 Bit3: DARK/ NORMAL 0：NORMAL 1：DARK Bit2-0: Color Bit2 Bit1 Bit0 Color Black Blue Green Cyan purple Yellow White 2） TCOL Bit7:When Panel lock 0：unlock POWER key 1：lock all key Bit6: Italic enable specification register 0: normal 1: italic Bit5: Underline enable specification register 0:normal 1: underline Bit4:NO USE Bit3: DARK/ NORMAL 0：NORMAL 1：DARK...
  • Page 25 4）HCOL Bit7: NO USE Bit6: DARK/ NORMAL 0：NORMAL 1：DARK Bit5-4: NO USE Bit3: DARK/ NORMAL 0：NORMAL 1：DARK Bit2-0: Bit2 Bit1 Bit0 Color TCOL MENU Black HCOL PICTURE Blue Green SOUND ACOL Cyan TUNING CCOL INSTILL purple FUNCTION Yellow White B）ACOL Bit7: Transparency enable register for menu area 0: opacity 1: translucence Bit6-4: Main menu background select Bit6...
  • Page 26 C）CALC (calendar Color:F9) Bit7: Date background 0: opacity 1: translucence Bit6-4: Date background color select 000：Black 2003 001：Blue Bit2-0 010：Green 011：Cyan Bit6-4 100：Red 101：Purple YEAR↑↓ MONTH← → 110：Yellow 111：White Bit3: Week background 0: opacity 1: translucence Bit2-0: Week background color select 000：Black 001：Blue 010：Green...
  • Page 27 2）A~Z 3）a~z 80-22 80-2E 80-2F 80-30 80-31 80-32 80-33 80-34 80-35 80-36 80-37 80-38 80-39 4）0~9 25）Spacing 20 26)End00: ITEM REMARK ITEM REMARK RCUT R CUT OFF GCUT VBLK V BLK Start/Stop G CUT OFF BCUT B CUT OFF VCEN V CENTERING GDRV V EHT/H ENT...
  • Page 28 BRTX SUB BRIGHT MAX AOPT AV MODEL SELECT BRTN OPT2 SUB BRIGHT MIN OPT2 SELECT WAITING TIME IN COLX WAIT SUB COLOR MAX THE OPEN CURTAIN TV—3.58 SHARP CURC CURTAIN CENTER STEPS OF THE CURS AV—3.58 SHARP WIDTH OFCURTAIN FUNCTION When Mute off, Vol.
  • Page 29 60Hz VERTICAL-S FSAD FS Tuner address CORRECTION SECAM B-Y Black LOGO LOGO option SECAM R-Y Black LOGH LOGOH. position BRTS SUB BRIGHNESS LOGV LOGO V. position RF AGC VADJ Eye Care range 1/2 AFC DATA SADJ Eye Care speed ADJUSTMENT Remote Controller CUSL VOLUME1%...
  • Page 30 IC N702 (8W AUDIO POWER OUTPUT) TDA7496SA Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 31 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 32 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 33 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 34 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 35 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 36 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 37 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 38 IC 701 (SOUND PROCESSOR) TA1343NG Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 39 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 40 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 41 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 42 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 43 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 44 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 45 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 46 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 47 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 48 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 49 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 50 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 51 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 52 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 53 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 54 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 55 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 56 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 57 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 58 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 59 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 60 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 61 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 62 Model No: CT-21LPS1MKI-ANZ Version 1.0...
  • Page 63 IC N402 <VERTICAL OUTPUT> LA78040 (or STV9302) Model No: CT-21LPS1MKI-ANZ Version 1.0...

  • Page 64: Adjustment Mode

    ADJUSTMENT MODE Geometry Adjustment Item Function Data HPOS 50Hz HORIZONTAL PHASE VP50 50Hz VERTICAL PHASE 50Hz VERTICAL AMPLITUDE 60Hz HORIZONTAL PHASE VP60 60Hz VERTICAL PHASE HITS 60Hz VERTICAL AMPLITUDE VLIN 50Hz VERTICAL-LINEARILTY 50Hz VERTICAL-S CORRECTION VLIS 60Hz VERTICAL-LINEARILTY 60Hz VERTICAL-S CORRECTION White Balance Adjustment Item Function...
  • Page 65 COLX SUB COLOR MAX BRTS SUB BRIGHNESS TV—3.58 SHARP AV—3.58 SHARP TV—4.43 SHARP AV—4.43 SHARP Model No: CT-21LPS1MKI-ANZ Version 1.0...

  • Page 66: Exploded View And Part List

    EXPLODED VIEW AND PART LIST Model No: CT-21LPS1MKI-ANZ Version 1.0...

  • Page 67: Bom List

    BOM LIST Item No Part Name Qty Position CARBON RESISTOR 1/6W 4.7 R444 1/6W 33 R113 1/6W 68 R215 1/6W 100 R203 R204 R217 R221 R222 R223 R225 R229 R286 R287 R292 R294 R307 R318 R330 R901 R902 1/6W 150 R111 R201 R404 1/6W 180 R310...
  • Page 68 1/4W 220 R519 1/4W 470 R960 1/4W 2.2K R526 1/4W 5.1K R552 1/4W 15K R522 1/4W 47K R556 R572 1/4W 150K R555 1/2W 1.2 R445 1/2W 220 R327 R442 1/2W 1K R407 1/2W 3.3K R560 R566 R605 R615 R625 1/2W 12K R462 1/2W 47K R564...
  • Page 69 50V 0.01u C112 C113 C114 C202 C208 C210 C211 C225 C232 C304 C309 C310 C314 C574 C635 C903 C913 C924 C929 C930 500V 1000p C402 500V 3900p C403 1KV 1000p C504 C506 1KV 470p C556 2KV 2200P C630 2KV 220p(开档7.5mm) C416 2KV 680p C530...
  • Page 70 50V 1000P C231 50V 2200p C446 50V 4700p C713 C723 50V 8200p C305 CL21X 50V 0.012u C515 50V 0.022u C517 50V 0.039U C514 50V 0.056U C447 50V 0.1U C101 C700 C922 C923 100V 0.1u C413 C444 160V 0.047uF C421 200V 0.33u C412 250VAC 0.1u C501 C502...
  • Page 71 INTEGRATED CIRCUIT uPC574J N904 TA78M09 9V稳压 N902 LC4053B N203 N207 BR ST24C16-W N901 TDA9302A (25"帧) N401 TDA7496SA N701 A8851CPNG-6EG1 N204 TRANSISTOR 2SA1015Y/2SA608/2SA733Q V202 V230 V302 V511 V902 2SB764 V904 2SC2216(GB) V101 2SC2383O V444 2SC2482 V601 V611 V621 2SC3807/2SC5070 V512 2SC4458X V501 V102 V103 V201 V203 V205 V206 2SC945/2SC1815/2SC536E...
  • Page 72 CRT SOCKET(29"东芝)插拔 XZ601 S-VHS端子(D8) XZ203 A/V SOCKET TX2-6ZA1 XZ201 单孔AV插座(红色)带开关 单孔AV插座(白色) 单孔AV插座(黄色) AC SOCKET(2S 大型) XZ501 XZ701 XZ711 XZ904 SPEAKER SOCKET(小型二芯) 2S SOCKET(中型) KEa XZ504 3S SOCKET(小型) XZ900 XZ901 DY SOCKET(中型) DYa XZ411 XZ207 5S SOCKET(小型) TRANSFORMER LINE FILTER(电源滤波器) L502 21"FBT高聚27KV视放帧24V T402 T501...

  • Page 73: Circuit Diagram

    CIRCUIT DIAGRAM Model No: CT-21LPS1MKI-ANZ Version 1.0...

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