akira CT-21LPS1MKI/ANZ Service Manual Download Page 6

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Model No: CT-21LP

1MKI-ANZ

Version 1.0

GENERAL SPECIFICATION

14” 70W

MAX

Power consumption

21” 100W

MAX

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
VHF-H: 168.25-463.25MHz

Channel receiving

UHF: 471.25-855.25MHz

Tuning system

VS tuning

AV IN/ OUT

2 AV STEREO IN + 1 AV STEREO OUT

Component IN

1 YUV-Component IN
VIDEO IN ----1.0 0.2V

p-p

75 Ohm

AUDIO IN ----0-2V (RMS)
VIDEO OUT ----1.0 0.2V

p-p

75 Ohm

AV IN/ OUT specification

AUDIO OUT ---- 0-2V (RMS)

OSD language

English, Russian, Turkish, French, Spanish, Vietnamese,
Indonesian, Arabian, Persian

Audio output power

> 8W (1KHz, 0.5V INPUT, 10% THD

Safety authentication standard

LED indicator

Power ON

Hand set type

HS08

Hans set power supply

Pin AAx2

Color picture tube

14” 21” 90 degree tube

Remote control distance

Summary of Contents for CT-21LPS1MKI/ANZ

Page 1: ...C C Co o ol l lo o ou u ur r r T T TV V V S S Se e er r rv v vi i ic c ce e e M M Ma a an n nu u ua a al l l...

Page 2: ...2 Model No CT 21LPS1MKI ANZ Version 1 0 CHASSIS TD171 MODEL CT 21LPS1MKI ANZ...

Page 3: ...ONTENT 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 PA...

Page 4: ...X RADIATION emissions For continued X RADIATION protection the replacement tube must be the same type as the original including suffix letter Excessive high voltage may produce potentially hazardous X...

Page 5: ...C25 05N2135 FlyBack Transformer N701 TA1343NG Sound Processor N702 TDA7496SA Sound power amplifier N402 STV9302 Vertical Scan Output Stage Circuit V411 TT2496 Horizontal Driver TST N901 ATMEL 24C16 EE...

Page 6: ...l receiving UHF 471 25 855 25MHz Tuning system VS tuning AV IN OUT 2 AV STEREO IN 1 AV STEREO OUT Component IN 1 YUV Component IN VIDEO IN 1 0 0 2Vp p 75 Ohm AUDIO IN 0 2V RMS VIDEO OUT 1 0 0 2Vp p 75...

Page 7: ...7 Model No CT 21LPS1MKI ANZ Version 1 0 CHASSIS BLOCK DIAGRAM...

Page 8: ...then test the voltage of C563 Check V411 T402 T401 Deflection coil Check L414 Deflection coil Voltage of C507 Check if V501 collect emitter Was broken down Check R502 F501 power Switch AC cord and plu...

Page 9: ...ect the red pole negative in ohm scope on the circuit board ground then touch softly the test point with another pole black pole in ohm scope meanwhile observe the reactivity on the output device Note...

Page 10: ...2 C209 C204 C238 C230 Observe if there is snow noise wave disturbance on the CRT via using Signal input way by touching pin 43 and pin 42 of N204 Test if there is the sync signal on the pin 9 of N204...

Page 11: ...N201 Hear if there is the voice liking Ka Ka in the loudspeaker via using Signal input way by touching pin4 15of N252 Hear if there is the voice liking Ka Ka in the loudspeaker via using Signal input...

Page 12: ...While checking horizontal and vertical deflection circuit s failure we have better to use an oscilloscope Abnormal Normal Normal Abnormal 24V 0V Abnormal Normal The waveform on the pin 16 of N204 Meas...

Page 13: ...ion s remote control system also needs reset circuit that can preset the values in internal register The circuit around pin 5 of N204 is called auto reset circuit If UOC detects errors in resetting it...

Page 14: ...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 ch...

Page 15: ...ctable sound NEWS SURROUND OFF MUSIC THEATRE EXTEND1 EXTEND2 8 Auto Power Off If a vacant channel is tuned or TV broadcast for a day is finished the TV will automatically turn off after about 15 minut...

Page 16: ...V GND GND terminal for Digital block 23 C in In Input terminal for Chroma signal 24 V2 in In Input terminal for Video signal 25 TV DVcc Vcc terminal for Digital block 26 V1 in In Input terminal for Vi...

Page 17: ...16 Model No CT 21LPS1MKI ANZ Version 1 0 A BLOCK DIAGRAM 16 SONUD PROCESSOR TA1343...

Page 18: ...rminal for RGB circuit Supply 5V 50 R out Out Output terminal for R signal 51 G out Out Output terminal for G signal 52 B out Out Output terminal for B signal 53 TV AGND GND terminal for Analog block...

Page 19: ...NZ Version 1 0 C SYSTEM 1 REMOTE CONTROL For Example If Pin19 with diode 14 15 16 17 18 19 20 21 Pin 7 6 5 4 3 2 1 0 bit 0 0 0 0 0 1 0 0 CUSL 04 1 1 1 1 1 0 1 1 CUSH FB 2 BAND BAND1 Pin1 BAND2 Pin2 VH...

Page 20: ...ect Screen 0 No Use 1 Used Bit1 RFAGC status when AV 0 Normal 1 When AV RFAGC 00 Bit0 Ex mute while Pos Change 0 Mute 1 No Mute 3 AV OPT 01 Bit7 2 No Use Bit1 0 AV Input Select Bit1 Bit0 Description 0...

Page 21: ...d system B G 0 No Use 1 Used 7 MOD2 1F Bit7 6 FS Tuner select 00 38 9MHz JINXIN UVL5705VEA IC KTS6029 JINXIN UVL7605VEA IC TDA6509 L 48 25 147 25 MHz E2 S7 M 154 25 423 25 MHz S8 S36 H 431 25 855 25 M...

Page 22: ...e 1 Used 9 EFFECT1 00 Bit7 This bit must be zero Bit6 ALS SW for TA1343 0 off 1 on Bit5 ALS start point Bit5 Bit4 0 0 220mV 0 1 380mV 1 0 525mV 1 1 770mV Bit3 This bit must be zero Bit2 Input attenuat...

Page 23: ...60 Bit7 When MUSIC MODE 0 Screen always B B 1 Later 1 minute screen disappear with sound Bit6 Hardware Mute 0 NO USE 1 USE Bit5 V MUTE During POS change 0 Y MUTE 1 RGB CUT OFF DC Bit4 0 These seven bi...

Page 24: ...e specification register 0 normal 1 underline Bit4 NO USE Bit3 DARK NORMAL 0 NORMAL 1 DARK Bit2 0 Set menu top character s color Bit2 Bit1 Bit0 Color 0 0 0 Black 0 0 1 Blue 0 1 0 Green 0 1 1 Cyan 1 0...

Page 25: ...register for menu area 0 opacity 1 translucence Bit6 4 Main menu background select Bit6 Bit5 Bit4 Color 0 0 0 Black 0 0 1 Blue 0 1 0 Green 0 1 1 Cyan 1 0 0 Red 1 0 1 purple 1 1 0 Yellow 1 1 1 White B...

Page 26: ...or select 000 Black 001 Blue 010 Green 011 Cyan 100 Red 101 Purple 110 Yellow 111 White 19 FSAD C0 FS Tuner address C0 0 0 1V C2 OPEN or 0 2 0 3V C4 0 4 0 6V C6 0 9 1 0V 20 VADJ 00 Eye Care Range Adju...

Page 27: ...REMARK RCUT 20 R CUT OFF SVM 00 SVM GCUT 20 G CUT OFF VBLK 00 V BLK Start Stop BCUT 20 B CUT OFF VCEN 27 V CENTERING GDRV 40 G DRIVE EHT 24 V EHT H ENT BDRV 40 B DRIVE UCOM 1C Miciom Control CNTX 7F...

Page 28: ...33 A part of Video data in detail HITWS 00 60Hz SIZE WIDE Vertical size CLTO 0B The data when TV mode SOUND SYS M EFF1 00 SOUND EFFECT1 CLTM 4B The data when TV mode SOUND SYS M EFF2 27 SOUND EFFECT2...

Page 29: ...NT SADJ 00 Eye Care speed V1 03 VOLUME1 CUSL 00 Remote Controller Code Low V25 3D VOLUME 25 CUSH Ff Remote Controller Code High V50 57 TV VOLUME50 SYNT F1 Sync V100 7F TV VOLUME100 SSNT FA Sync MUTT 0...

Page 30: ...30 Model No CT 21LPS1MKI ANZ Version 1 0 IC N702 8W AUDIO POWER OUTPUT TDA7496SA...

Page 31: ...31 Model No CT 21LPS1MKI ANZ Version 1 0...

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Page 38: ...38 Model No CT 21LPS1MKI ANZ Version 1 0 IC 701 SOUND PROCESSOR TA1343NG...

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Page 63: ...63 Model No CT 21LPS1MKI ANZ Version 1 0 IC N402 VERTICAL OUTPUT LA78040 or STV9302...

Page 64: ...NEARILTY 00 VSS 60Hz VERTICAL S CORRECTION 04 White Balance Adjustment Item Function DATA RCUT ALIGN RED OUT DC LEVEL 00 FF GCUT ALIGN GREEN OUT DC LEVEL 00 FF BCUT ALIGN BLUE OUT DC LEVEL 00 FF GDRV...

Page 65: ...65 Model No CT 21LPS1MKI ANZ Version 1 0 COLX SUB COLOR MAX 3F BRTS SUB BRIGHNESS 00 ST3 TV 3 58 SHARP 25 SV3 AV 3 58 SHARP 25 ST4 TV 4 43 SHARP 25 SV4 AV 4 43 SHARP 25...

Page 66: ...66 Model No CT 21LPS1MKI ANZ Version 1 0 EXPLODED VIEW AND PART LIST...

Page 67: ...13 1 6W 2K 1 R1002 14 1 6W 2 2K 3 R209 R212 R214 15 1 6W 3 3K 6 R202 R230 R244 R301 R446 R523 16 1 6W 3 9K 5 R108 R608 R618 R628 R916 17 1 6W 4 7K 6 R1003 R252 R255 R918 R919 R941 18 1 6W 5 6K 4 R443...

Page 68: ...RESISTOR 49 1 2W 0 47 1 R573 50 1 2W 1 0 3 R418 R467 R558 OXIDE FILM RESISTOR 51 1W 4 7K 12 5mm 1 R413 52 2W 1 1 R410 53 2W 68 2 R525 R580 54 2W 120 1 R567 55 2W 270 1 R437 56 2W 12K 4 R553 R606 R616...

Page 69: ...6 C747 81 16V 22u 2 C218 C219 82 16V 47u 9 C238 C240 C296 C307 C632 C740 C904 C914 C916 83 16V 100u 7 C107 C230 C243 C302 C311 C927 C928 84 16V 220U 1 C222 85 16V 470U 2 C209 C571 86 25V 220u 2 C702 C...

Page 70: ...5uH K 6 L102 L104 L201 L302 L305 L901 120 27uH K 1 LR324 121 33uH K 1 LVD430 PHOTO TRANSISTOR 122 PC817B C 1 VD515 DIOD 123 5mm 1 VD1001 124 1S1555 IN4148A 13 VD230 VD232 VD233 VD234 VD401 VD514 VD516...

Page 71: ...X 1 V501 152 2SC945 2SC1815 2SC536E 13 V102 V103 V201 V203 V205 V206 V290 V291 V551 V630 V731 V900 V901 153 TT2140 ST1803 1 V411 154 2SD400D 1 V905 OTHER COMPONENT 155 T 6 5M 1 Z304 156 T 5 5M 1 Z302...

Page 72: ...1 XZ201 177 AV 1 R 178 AV 1 L 179 AV 1 V 180 AC SOCKET 2S 1 XZ501 181 SPEAKER SOCKET 3 XZ701 XZ711 XZ904 182 2S SOCKET KEa 1 XZ504 183 3S SOCKET 2 XZ900 XZ901 184 DY SOCKET DYa 1 XZ411 185 5S SOCKET 1...

Page 73: ...73 Model No CT 21LPS1MKI ANZ Version 1 0 CIRCUIT DIAGRAM...

Page 74: ......

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