akira CT-21CH9 Service Manual Download Page 37

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Model No: CT-21CH9N

Version 1.0

Main-board/AV-boa rd/K-board

Location No. Part No.

Name

Description

R988

51124681JU0

carbon film resistor

0.25W 680J

R036

51124102JU0

carbon film resistor

0.25W 1KJ

R045

51124102JU0

carbon film resistor

0.25W 1KJ

R403

51124102JU0

carbon film resistor

0.25W 1KJ

R411

51124102JU0

carbon film resistor

0.25W 1KJ

R610

51124102JU0

carbon film resistor

0.25W 1KJ

W205

51124102JU0

carbon film resistor

0.25W 1KJ

R008

51124152JU0

carbon film resistor

0.25W 1.5KJ

R811

51124182JU0

carbon film resistor

0.25W 1.8KJ

R224

51124222JU0

carbon film resistor

0.25W 2.2KJ

R302

51124222JU0

carbon film resistor

0.25W 2.2KJ

R813

51124272JU0

carbon film resistor

0.25W 2.7KJ

R103

51124392JU0

carbon film resistor

0.25W 3.9KJ

R820

51124512JU0

carbon film resistor

0.25W 5.1KJ

R603

51124512JU0

carbon film resistor

0.25W 5.1KJ

R110

51124562JU0

carbon film resistor

0.25W 5.6KJ

R809

51124562JU0

carbon film resistor

0.25W 5.6KJ

R105

51124562JU0

carbon film resistor

0.25W 5.6KJ

R051

51124822JU0

carbon 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 film resistor

0.25W 10KJ

R521

51124103JU0

carbon film resistor

0.25W 10KJ

R810

51124103JU0

carbon film resistor

0.25W 10KJ

R004

51124123JU0

carbon film resistor

0.25W 12KJ

R806

51124153JU0

carbon film resistor

0.25W 15KJ

R409

51124183JU0

carbon film resistor

0.25W 18KJ

R924

51124183J20

carbon film resistor

0.25W 18KJ

R935

51124183J20

carbon film resistor

0.25W 18KJ

R005

51124223JU0

carbon film resistor

0.25W 22KJ

R101

51124223JU0

carbon film resistor

0.25W 22KJ

R812

51124223JU0

carbon film resistor

0.25W 22KJ

R822

51124223JU0

carbon film resistor

0.25W 22KJ

R602

51124273JU0

carbon film resistor

0.25W 27KJ

R406

51124303JU0

carbon film resistor

0.25W 30KJ

R007

51124333JU0

carbon film resistor

0.25W 33KJ

R026

51124333JU0

carbon film resistor

0.25W 33KJ

R816

51124473JU0

carbon film resistor

0.25W 47KJ

Summary of Contents for CT-21CH9

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 21CH9N Version 1 0 M M Mo o od d de e el l l G G Gr r ro o ou u up p p C C CT T T 2 2 21 1 1C C CH H H9 9 9 CHASSIS CN 9 MODEL CT 21CH9N...

Page 3: ...y 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 offeri...

Page 4: ...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 75 imbalance Picture tube Effective...

Page 5: ...ach 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...

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Page 11: ...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 th...

Page 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 purit...

Page 13: ...bly 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...

Page 14: ......

Page 15: ...ove 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 pi...

Page 16: ......

Page 17: ...ifference 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 ce...

Page 18: ...t 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 initi...

Page 19: ...ure 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...

Page 20: ...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 P...

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Page 26: ...icture 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 processi...

Page 27: ......

Page 28: ...F 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...

Page 29: ...O 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...

Page 30: ...LK 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 I...

Page 31: ...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...

Page 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 OUT...

Page 33: ...2 5 Connet 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...

Page 34: ...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...

Page 35: ...113391JU0 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 51...

Page 36: ...arbon 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 c...

Page 37: ...rbon 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 carbo...

Page 38: ...tor 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 fi...

Page 39: ...532102KV0 Ceramic capacitor 63V 1000PFK C236 52532102KV0 Ceramic capacitor 63V 1000PFK C404 52532102KV0 Ceramic capacitor 63V 1000PFK C115 52532152KV0 Ceramic capacitor 63V 1500PFK C201 52532152KV0 Ce...

Page 40: ...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 525RP471K...

Page 41: ...ytic capacitor 16V 10 FM C244 52613220MV0 Aluminum electrolytic capacitor 16V 22 FM C603 52613220MV0 Aluminum electrolytic capacitor 16V 22 FM C105 52623470MV0 Aluminum electrolytic capacitor 16V 47 F...

Page 42: ...5268D101MA0 Aluminum electrolytic capacitor 400V 100 FM L104 55632 33K10 Invariablenes inductor LGBO606 0 33 HK L206 556328 2J10 Invariablenes inductor LGB0606 8 2 HJ L207 556328 2310 Invariablenes i...

Page 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 614144...

Page 44: ...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 electrici...

Page 45: ...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 2SD...

Page 46: ...360MB0Y 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 5M...

Page 47: ...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 resis...

Page 48: ...50Y40 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...

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