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akira CT-14XJ9N Скачать руководство пользователя страница 26

 

26 

 

Model No: CT-14XJ9N 

Version 1.0 

 

 

 

MAIN ICS DESCRIPTION AND REPAIR DATA OFFERING 
 

1.  INTRODUCTION FOR IC TB1238AN (N201) 

TB1238AN is a PAL/NTSC system color TV specific monolithic IC currently developed by Toshiba 

Co., which is controlled by Inter IC Bus. TB1238AN includes a picture IF processing circuit, a sound 

IF processing circuit, PLL video detection circuit, PLL sound frequency discrimination circuit, a 

luminance signal processing circuit, PAL/NTSC chro-ma signal processing circuit and RGB signal 

processing circuit. TV/AV switching circuit and Horizontal/Vertical scanning small signal processing 

circuit etc. 

 

Figure 7 shows the inner structure block diagram of TBI238AN. 

The pin functions and repair data of TB1238AN is listed in the Table 3. 

 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 

Содержание CT-14XJ9N

Страница 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 ...

Страница 2: ...2 CHASSIS CN 9 MODEL CT 14XJ9N ...

Страница 3: ...ty instructions 11 Circuit adjustments 12 Set up adjustment 13 Service mode general instructions 15 Service mode adjustment 19 Main repairing flow diagram 20 Main ICs description and repair data offering 26 Spare parts list 35 Appendix Exploded view 49 Circuit diagram 50 Print lay out of main board 51 ...

Страница 4: ...g channel VHF Cl C12 49 75 85 25MHz 168 25 216 25MHz UHF C 13 C57 471 25 863 25MHz CATV Zl Z7 111 0 167 0MHz ZS Z35 223 0 447 0MHz Programs Preset 236 Antenna input 75Ù imbalance Picture tube Effective screen dimension 406mmx305mm Flat square tube Audio output Main channel 5W 5W THD 7 Power supply AC 150 260V 50Hz Weight 26kg Dimensions 5 66mm w x 4551mn h x 480mm d Power consumption 87W AC 220V 5...

Страница 5: ...each the advanced level of the world Figure 1 shows the block diagram of CN 9 Table 1 provides CN 9 mainly ICs and functions Figure 2 shows the whole set power supply system for CN 9 Figure 3 shows the system control circuit of CN 9 Table 1 CN 9 mainly ICs and functions Location Type Mainly function N001 CH0807 TMP87CM38N 3673 System control microprocessor N002 AT24C04 Memory N945 HS0038 Remote co...

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Страница 11: ...g the high voltage cap discharge the anode of the CRT and the chas sis in case of electric shock c Wear a pair of goggles when handling the CRT to void broken pieces damaging your eyes d Do not hold the CRT neck in case of causing damage to the CRT 2 When the power cord needs replacing use the same one as stated in this manual 3 Voltage exists between the hot and cold ground when the TV is in oper...

Страница 12: ... switch must be switched off at least 30 minutes in order that the automatic degaussing circuit operates properly Should the chassis or parts of the cabinet become magnetized to cause poor colour purity use an external degaussing coil Slowly move the degaussing coil around the faceplate of the picture tube the sides and front of the receiver and slowly withdraw the coil to a distance of about 2m b...

Страница 13: ...mbly and rubber wedges need mechanical positioning Refer to figure 4 COLOUR PURITY ADJUSTMENT NOTE Before attempting any purity adjustment the receiver should be operated for at least fifteen minutes 1 Demagnetize the picture tube and cabinet using a degaussing coil 2 Set the brightness and contrast to maximum 3 Receive the green raster test signal 4 Loosen the clamp screw holding the deflection c...

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Страница 15: ...move cover paper on adhesive part of the wedge 3 Tilt front of the deflection coil up or down to obtain better convergence in circumference See figure 6 Push the mounted wedge into the space between picture tube and the coil to fix the coil temporarily 4 Put other wedge into bottom space and remove the cover paper to stick 5 Tilt front of the deflection coil right or left to obtain better converge...

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Страница 17: ...difference 1C 16 BRTN Sub bright min difference 20 17 COLX Sub color max difference 35 18 COLN Sub color min 00 19 TNTX Sub tint max difference 28 20 TNTN Sub tint min difference 28 21 ST3 Sub sharp center 3 58NTSC TV 20 22 SV3 Sub sharp center 3 58NTSC AV 20 23 ST4 SUB SHARP CENTER OTHER TV 20 24 SV4 Sub sharp center other AV 20 25 SHPX Sub sharpness max difference 1A 26 SHPN Sub sharpness min di...

Страница 18: ...st VCO initial data 80 50 SELF AGC Self adjust AGC initial data 80 51 SELF BRTC Self adjust BRTC initial data 80 52 SELF CNTC Self adjust CNTC initial data 20 53 SELF TNTC Self adjust TNTC center initial data 00 54 SELF COLC Self adjust COLC initial data 10 55 PNUM Protect number 7F 56 VHFL L Factory ASM VT limit of VHFL low byte 50 57 VHFL H Factory ASM VT limit of VHFL high byte 03 58 VHFH L Fac...

Страница 19: ...ture does not become dark when the contrast and brightness are set to minimum or not become bright when set to maximum then adjust the BRTC data to get normal picture 3 WHITE BALANCE ADJUSTMENT 1 Turn on the TV and preheat it for over 7 minute 2 Use the remote control to set the contrast to maximum and the brightness to medium Set the chroma to minimum 3 Enter the TV to the SERVICE mode and set th...

Страница 20: ...f screen 7 HORIZONTAL AMPLITUDE ADJUSTMENT Receive Philips test signals Adjust the horizontal amplitude adjustment inductance L506 so that the edge of the CRT covers the right and left borderlines of Philips picture by 1 3 grille 8 BUS DATA INITIALIZATION When the BUS DATA of TV is confused enter the TV to the service mode Press the SLEEP button on the Remote Control will initialize the BUS DATAS ...

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Страница 26: ...picture IF processing circuit a sound IF processing circuit PLL video detection circuit PLL sound frequency discrimination circuit a luminance signal processing circuit PAL NTSC chro ma signal processing circuit and RGB signal processing circuit TV AV switching circuit and Horizontal Vertical scanning small signal processing circuit etc Figure 7 shows the inner structure block diagram of TBI238AN ...

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Страница 28: ...IF AGC IF amplifier AGC filter 6 4 4 7 2 11 2 10 APC FILTER APC filtering 1 8 1 8 10 11 2 11 4 43MHZXTA 4 43MHZ crystal oscillating 2 2 2 2 7 4 120 12 Y C GND Ground Y C signal processor 0 0 0 0 13 YS YM Y switch signal input 0 0 1 2 14 EXT R IN Character R signal input 0 9 0 9 7 2 11 2 15 EXT G IN Character G signal input 0 9 0 9 7 2 11 2 16 EXT B IN Character B signal input 0 9 0 9 7 2 11 2 17 R...

Страница 29: ...EO Y IN External video luminance signal input 1 6 1 6 7 2 11 42 DIG GND Digital circuit ground 0 0 0 0 43 TV VIDEO IN TV Video signal input 2 8 3 2 7 2 11 44 BLACK DET Black level detecting filter 3 2 2 4 7 2 12 45 EXT CIN External chroma signal input 2 9 2 9 7 2 11 5 46 Y C VCC 5V supply input Y C processing system 5 2 5 2 1 6 2 47 IF DETOUT IF video detected output 4 6 3 7 1 1 3 48 LOOP Filter C...

Страница 30: ...CLK NC 0 0 6 23 5 9 BAND1 Tuner band switching control signal output 4 9 5 6 16 7 10 BAND2 Tuner band switching control signal output 0 0 6 14 11 SCL1 Inter IC Bus clock line 4 3 4 3 5 8 21 3 12 SDA1 Inter IC Bus data line 1 4 5 4 5 5 6 21 3 13 AFC IN Automatic frequency control input 0 1 8 6 10 14 AV0 AV switch control signal O output 0 4 6 18 15 EXT G IN NC 0 0 0 0 16 EXT B IN Keypad analog volt...

Страница 31: ...t 1 5 0 5 6 2 24 3 32 XOUT 10MHZ clock oscillation output 2 2 2 2 4 8 24 3 33 RESET CPU reset pin 5 5 5 4 5 34 OPTION Option pin 4 9 4 6 6 14 5 35 RMT IN Remote control instructions input 3 5 3 4 6 24 36 H SYNC Picture identification signal input 1 4 5 6 15 37 SCL0 Inter IC Bus clock line0 4 7 0 6 23 38 SDA0 Inter IC Bus data line 0 4 7 4 8 6 23 39 KARA ON OFF NC 0 0 6 24 40 SYS0 Sound system swit...

Страница 32: ... 2 7 0 7 0 12 8 5 4 9 PGND2 Ground 2 supply circuit 0 0 0 0 10 OUT2 Audio signal output 2 7 0 7 0 12 8 5 4 11 OUT1 Audio signal output 1 7 0 7 0 12 8 5 4 12 PGND1 Ground l supply circuit 0 0 0 0 13 OUTI Audio signal output 1 7 0 7 0 12 8 5 4 4 Repair data for IC LA7910 N101 LA7910 is the band decoder of CN 9 the pin functions and repair data of it is listed in the table 6 Table 6 Pin functions and...

Страница 33: ... 2 5 Connect to Phase compensate capacitance 0 8 0 8 3 6 9 0 6 Vcc Power supply pin 24 5 24 5 3 5 7 3 7 Pump power supply output 1 2 1 2 5 5 11 6 Repair data for IC AT24C08 N002 AT24C08 is the Memory of CN 9 the pin functions and repair data of it is listed in the table 8 Table 8 Pin functions and repair data of AT24C08 Index type multimeter r 20k Resistance for GND RxlK Pin Symbol Function Quiesc...

Страница 34: ...3 2 4 9 0 2 5 2 5 0 3 2 1 Uc v 3 5 11 5 0 6 6 0 6 6 11 5 11 5 11 5 8 4 15 2 125 Ue v 0 1 1 1 9 3 6 2 5 2 9 4 2 4 2 1 8 0 0 2 15 Position Pin V5 03 V602 VS01 V802 V803 V804 V805 V806 V901 V902 V903 V904 V905 Ub v 15 2 0 6 5 6 11 5 0 5 0 4 0 6 3 1 4 1 4 0 0 0 4 Uc v 4 5 0 15 0 5 0 4 290 36 5 36 5 110 110 120 4 3 0 Ue v 15 0 5 11 5 0 0 0 6 1 1 1 1 1 1 1 0 1 0 7 ...

Страница 35: ...1113391JU0 carbon film resistor 0 166W 390J R226 51113471JU0 carbon film resistor 0 166W 470J R217 51113561JU0 carbon film resistor 0 166W 560J Rl14 51113681JU0 carbon film resistor 0 166W 680J R001 51113102JU0 carbon film resistor 0 166W 1KJ R037 51113102JU0 carbon film resistor 0 166W 1KJ R039 51113102JU0 carbon film resistor 0 166W 1KJ R041 51113102JU0 carbon film resistor 0 166W 1KJ R043 51113...

Страница 36: ...carbon film resistor 0 166W 33KJ R203 51113333JU0 carbon film resistor 0 166W 33KJ R607 51113393JU0 carbon film resistor 0 166W 39KJ R107 51113623JU0 carbon film resistor 0 166W 62KJ R014 51113683JU0 carbon film resistor 0 166W 68KJ RV02 51113683JU0 carbon film resistor 0 166W 68KJ R209 51113104JU0 carbon film resistor 0 166W 100KJ R222 51113224JU0 carbon film resistor 0 166W 220KJ R070 51113474JU...

Страница 37: ...arbon film resistor 0 25W 8 2KJ R047 51124103JU0 carbon film resistor 0 25W 10KJ R054 51124103JU0 carbon film resistor 0 25W 10KJ R056 51124103JU0 carbon film resistor 0 25W 10KJ R060 51124103JU0 carbon film resistor 0 25W 10KJ R102 51124103JU0 carbon film resistor 0 25W 10KJ R310 51124103JU0 carbon film resistor 0 25W 10KJ R511 51124103JU0 carbon film resistor 0 25W 10KJ R515 51124103JU0 carbon f...

Страница 38: ...stor 0 5W 4 7KJ R407 513161 5JK0 Metal oxide film resistor 1W 1 5J R601 513162 2JK0 Metal oxide film resistor 1W 2 2J R408 51316241JK0 Metal oxide film resistor l W 240J R518 51316102JK0 Metal oxide film resistor l W 1KJ R802 51316102JK0 Metal oxide film resistor l W IIQI R814 51317680JM0 Metal oxide film resistor 2W 68J R826 51317181JK0 Metal oxide film resistor 2W 180J R504 51317391JL0 Metal oxi...

Страница 39: ...2532102KV0 Ceramic capacitor 63V 1000PFK C236 52532102KV0 Ceramic capacitor 63V 1000PFK C404 52532102KV0 Ceramic capacitor 63V 1000PFK C115 52532152KV0 Ceramic capacitor 63V 1500PFK C201 52532152KV0 Ceramic capacitor 63V 1500PFK C210 52532222KV0 Ceramic capacitor 63V 2200PFK C518 52532472K11 Ceramic capacitor 63V 4700PFK C604 52532472K11 Ceramic capacitor 63V 4700PFK C021 5253F103ZV0 Ceramic capac...

Страница 40: ...M C813 52582102M30 Ceramic capacitor 1KV 1000PFM C821 52592471K20 Ceramic capacitor 2KV 470PFK C819 52592681K30 Ceramic capacitor 2KV 680PFK C505 52592812K30 Ceramic capacitor 2KV 820PFK C820 525RP471K9Y Ceramic capacitor 400VAC 470PFK C820 52572471K90 Ceramic capacitor 400VAC 470PFK C814 525RP471K9Y Ceramic capacitor 400VAC 470PFK C814 5257247 K90 Ceramic capacitor 400VAC 470PFK C228 52367472J10 ...

Страница 41: ...lytic capacitor 16V 10ìFM C244 52613220MV0 Aluminum electrolytic capacitor 16V 22ìFM C603 52613220MV0 Aluminum electrolytic capacitor 16V 22ìFM C105 52623470MV0 Aluminum electrolytic capacitor 16V 47ìFM C234 52623470MV0 Aluminum electrolytic capacitor 16V 47ìFM C526 52623470MV0 Aluminum electrolytic capacitor 16V 47ìFM C203 52623470M10 Aluminum electrolytic capacitor 16V 47ìFM C239 52623470M10 Alu...

Страница 42: ...12 5268D101MA0 Aluminum electrolytic capacitor 400V 100ìFM L104 55632 33K10 Invariablenes inductor LGBO606 0 33ìHK L206 556328 2J10 Invariablenes inductor LGB0606 8 2ìHJ L207 556328 2310 Invariablenes inductor LGB0606 8 2ìHJ L205 55632120J10 Invariablenes inductor LGB0606 12ìHJ L208 55632120J10 Invariabienes inductor LGB0606 12ìHJ L202 55632680310 Invariablenes inductor LGB0606 68ìHJ L301 55632680...

Страница 43: ... 2CK75D D301 614144148U0 Diode 1N4148 D508A 61411075DU0 Diode 2CK75D D508A 614144148U0 Diode 1N4148 D508 61411075DU0 Diode 2CK75D D508 614144148U0 Diode 1N4148 D807 61411075DU0 Diode 2CK75D D807 614144148U0 Diode 1N4148 D809 61411075DU0 Diode 2CK75D D809 614144148U0 Diode 1N4148 D811 61411075DU0 Diode 2CK75D D811 614144148U0 Diode 1N4148 D813 61411075DU0 Diode 2CK75D D813 614144148U0 Diode 1N4148 ...

Страница 44: ...4 612120912U0 Diode W05Z9 1B D828 61123619140 Diode lW9 1V D828 61110210740 Diode 2CW107 VD921 61512050R00 Diode FG5RD N801 66120817BOY Photo electricity coupler PC817B NS01 6611561530Y Photo electricity coupler SFH615A 3 V002 62210150YW0 Audion 3CG1015 Y V002 62510150YWY Audion 2SA1015 Y V201 62210150YW0 Audion 3CG1015 Y V201 62510150YWY Audion 2SA1015 Y V203 62210150YW0 Audion 3CG1015 Y V203 625...

Страница 45: ...n 3DG2383 Y V803 6343807006Y Audion 2SC3807 V803 6343807A05Y Audion 2SC3807A V804 62107528700 Audion 3DD5287 V804 6240752870Y Audion 2SC5287 V502 649250830YY Audion BU2508DX V502 6442499000Y Audion 2SD2499 D002 67312574J1Y Integrate circuit ìPC574J D002 67311574C1Y Integrate circuit CW574CS N203 6724178055Y Integrate circuit L7805CV N502 6724718090Y Integrate circuit L7809CV N501 6731978125Y integ...

Страница 46: ...1360MB0Y Ceramic filter SFSH6 0MCB Z206 57311060MH5 Ceramic filter LT6 0MH Z206 57311060MJ5 Ceramic filter LT6 0MJ Z205 5731365MB0Y Ceramic filter SFSH6 5MCB Z205 57311065MH5 Ceramic trap filter LT6 5MH Z205 57311065MJ5 Ceramic trap filter LT6 5M Z203 5741445MB0Y Ceramic trap filter TPS4 5MB Z203 5741145MB05 Ceramic trap filter XT4 5MB Z201 5741460MB0Y Ceramic trap filter TPS6 0MB Z201 5741160MB05...

Страница 47: ...0 5W 68J R913 51325680JUY Metal oxide film resistor 2W 680J R914 51317183JL0 Metal oxide film resistor 2W 18KJ R914 51327183JKY Metal oxide film resistor 2W 183J R915 51317183JL0 Metal oxide film resistor 2W 18KJ R915 51327183JKY Metal oxide film resistor 2W 183J R916 51317183JL0 Metal oxide film resistor 2W 18KJ R916 51327183JKY Metal oxide film resistor 2W 183J C901 52532391K10 Ceramic capacitor...

Страница 48: ...150Y40 Audion 3DG1815 Y V904 62418150Y4Y Audion 2SC1815 V901 62124821060 Audion 3DG2482 FA 1 V901 6242482100Y Audion 2SC2482 lq A 1 V902 62124821060 Audion 3DG2482 FA 1 V902 6242482100Y Audion 2SC2482 FA 1 V903 62124821060 Audion 3DG2482 FA 1 V903 6242482100Y Audion 2SC2482 FA 1 GZ01 53610210800 CRT socket GZS10 2 108 GZ01 5361021AC20 CRT socket GZS10 2 AC2 ...

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