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Dell 21N21E2 manual

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Table of contents for the manual

  • Page 1

    SERVICE MANUAL PRINTED IN UK. 2003 C COLOUR TELEVISION 21N21E2 TOSHIBA[...]

  • Page 2

    SERVICING NOTICES ON CHECKING 6. AVOID AN X-RAY 1. KEEP THE NOTICES As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual. 3. USE THE DESIGNATED PARTS 5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE Safety i[...]

  • Page 3

    CONTENTS A2-1 SERVICING NOTICES ON CHECKING ...................................................................................................... HOW TO ORDER PARTS ........................................................................................................................... IMPORTANT ..................................................[...]

  • Page 4

    GENERAL SPECIFICATIONS G-1 TV CRT CRT Size / Visual Size 21 inch / 544.5mmV System CRT Type NORMAL Deflection 90 degree Magnetic Field BV/BH +0.45G/0.18G Color System PAL/SECAM Speaker 1 Speaker Position Front Size 1.5 x2.7 Inch Impedance 8 ohm Sound Output MAX 5.0 W 10%(Typical) 4.0 W DDR SECAM No NTSC3.58(AV)+NTSC4.43 Yes PAL60Hz Yes G-2 Tuning B[...]

  • Page 5

    GENERAL SPECIFICATIONS G-7 On Screen Menu Yes Display Menu Type Character Picture Yes Contrast Yes Brightness Yes Colour Yes Tint (NTSC Only) Yes Sharpness Yes Audio No Bass No Treble No Balance No BBE On/Off No Stable Sound On/Off No CH Tuning Yes Manual Yes Auto Yes CH MAPPING Yes CH Allocation No Text Langage(East/West) Yes Language Yes Clock Se[...]

  • Page 6

    GENERAL SPECIFICATIONS G-10 Remote Unit RC-GX Control Glow in Dark Remocon No Format NEC Custom Code 40-BF h Power Source Voltage(D.C) 3V UM size x pcs UM-4 x 2 pcs Total Keys 34 Keys Keys Power Yes 1/Rename Yes 2/Move Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes Volume Up / + Yes Volume Down / - Yes Previous Yes Select Picture Yes Menu Yes [...]

  • Page 7

    GENERAL SPECIFICATIONS G-11 Features Auto Degauss Yes Auto Shut Off Yes Canal+ No CATV No Anti-theft(Back Up 30 Min.) No Memory(Last CH) Yes Memory(Last Volume) Yes BBE No Auto Search Yes ITS No CH Allocation No CH MAPPING Yes Just Clock Function No Game Position No CH Label No VM Circuit No Full OSD No Noise Blue Back No T'Text Yes Text type [...]

  • Page 8

    GENERAL SPECIFICATIONS G-13 Interface Switch Front Power (Tact Sw) No System Select No Main Power SW Yes Sub Power No Channel Up Yes Channel Down Yes Volume Up Yes Volume Down Yes Rear AC/DC No TV/CATV Selector No Degauss No Main Power SW No Indicator Power No Stand-by No Stand-by/ON Yes(Red) On Timer Yes(Green) Terminals Front Video Input Yes(RCA)[...]

  • Page 9

    1. REMOVAL OF ANODE CAP Read the following NOTED items before starting work. After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring[...]

  • Page 10

    B2-1 Masking Tape (Cotton Tape) DISASSEMBL Y INSTRUCTIONS 2. REMOVAL IC Put the Masking Tape (cotton tape) around the Flat Package IC to protect other parts from any damage. (Refer to Fig. 2-1.) 1. Fig. 2-1 NOTE REMOVAL AND INSTALLATION OF FLAT PACKAGE IC Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of ea[...]

  • Page 11

    B2-2 DISASSEMBL Y INSTRUCTIONS Supply soldering from upper position to lower position IC Supply the solder from the upper position of IC leads sliding to the lower position of the IC leads. (Refer to Fig. 2-6.) 2. Fig. 2-6 Soldering Iron Solder IC Absorb the solder left on the lead using the Braided Shield Wire. (Refer to Fig. 2-7.) 3. Fig. 2-7 Sol[...]

  • Page 12

    C-1 SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 2 seconds. Set Key Remocon Key Operations VOL. (-) MIN 0 Reset the user setting items (PICTURE, VOLUME and LANGUAGE) to the initial state for deliv[...]

  • Page 13

    ELECTRICAL ADJUSTMENTS D-1 2. BASIC ADJUSTMENTS 2-1: CONSTANT VOLTAGE 1. 2. 3. 4. Place the set with Aging Test for more than 5 minutes. Connect the digital voltmeter to TP501 . Set condition is AV MODE without signal. Adjust the VR501 until the DC voltage is 117 ± 1.0V. 1. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the[...]

  • Page 14

    ELECTRICAL ADJUSTMENTS D-2 2-8: HORIZONTAL POSITION 1. 2. 3. 4. 5. 6. 7. 8. Receive the monoscope pattern from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (08) on the remote control to select "H POSI (50)"[...]

  • Page 15

    ELECTRICAL ADJUSTMENTS D-3 2-13: TINT 1. 2. 3. 4. 5. Receive the NTSC color bar pattern. (Audio Video Input) Using the remote control, set the brightness and contrast to normal position. Connect the oscilloscope to TP024 . Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "TINT&q[...]

  • Page 16

    ELECTRICAL ADJUSTMENTS D-4 3. 1. 2. 3. 1. 2. 3. 4. 5. 6. 7. 8. 3-2: PURITY NOTE Adjust after performing adjustments in section 3-1. 1. 2. 3. 4. 5. Receive the green raster pattern from color bar generator. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide[...]

  • Page 17

    D-5 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) MAIN PCB TU001 CP101 J702 VR420 CP401 OS101 CP1002 VR401 CP802A FB401 CP502 J701 CD802 J704 J703 CP803A CP803B TP024 TP022 J801 CP806 CP802B R805 R803 CP801 SPEAKER CRT CD803 CP501 AC IN CD501 TP501 R521 CRT PCB DEGAUSS COIL CD801 CRT VR501 L302 TP001[...]

  • Page 18

    MEMORY IC IC199 S-24C16AFJA-TB-01 AUDIO SW IC IC701 MM1501XNRE MICON W/T.TEXT IC IC101 OECF013B CHROMA IC IC201 STV2248E V-DRIVE IC IC401 TDA8174A TU001 FB401 CVBSOUT1 XTAL2 29 39 VCC_IF VCC_D 53 12 OSD-R 36 XTAL1 40 VCC1 VCC2 17 45 OSD-G 35 OSD-B 34 FM_OUT 11 7 1 5 4 11 SCL SDA BPL AGC IF 7 6 8 I2C P.CON+5V SDA 19 OSD-B OSD-G 16 15 SCL 20 OSD-R CV[...]

  • Page 19

    TU001 CP101 C003_1 C002 L001 CP001 HS1002 C1008 IC1002 R112 SW104 SW102 SW107 SW106 C122 R136 J704 J703 J702 R725 R706 W830 D712 R715 R714 R716 R713 L706 L707 L704 L708 L711 C711_2 R543 W829 VR420 D520 D516 D513 C442_1 C437_2 CP401 IC401 C403 D410 T401_1 Q402 R446 C414_1 C448 R416 C418 R407 C417 D403 R426 R418 C412 HS401 HS503 C517_1 IC502 HS502 L4[...]

  • Page 20

    B_SHORT R006 C001 C006 R104 Q103 R103 R101 R102 Q102 R132 R704 R738 Q703 R728 R727 R726 R736 R737 C716 C721 C719 R005 R137 R420 C502_2 C753 C007 R541 C759 R419 R710 R705 C726 R745 C727 C731 IC701 R750 Q609 C633 C605_2 C612 C607_2 C603_2 R217 R630 R629 R628 C218 Q201 C204 C212 C203 R202 R215 C609 R214 R201 C202 C207_1 R218 R622 C616 C615_2 R608 C221[...]

  • Page 21

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 R140 1.8K R102 820 R103 1.2K R104 2.2K R101 390 R006 15K R142 1.8K R141 1.8K R004 270 1/4W R116 10K R133 10K R123 10K R124 10K R131 100K R109 2.2K 1/4W R003 270 1/4W R126 47 R120 4.7K R107 1K R115 4.7K R114 4.7K R134 10K R152 100 1/4W R148 10K R137 180 R136 1.5K 1/4W R111 15K R110 5.6K R10[...]

  • Page 22

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 Q609 2SC2412K BUFFER Q201 KTC3881S-RTK VIF PRE.AMP Q601 2SC2412K H CONT Q204 2SC2412K SIF BUFFER L206 0.22uH L203 1uH L204 12uH L207 10uH OUT OUT G IN IN CF202_1 J1981M 12345 CF201 TPTRD5M50B01-A0 CF204 MKT31.9MA110P CF303 MKT40.4MA110P L202 3700005 VCO 1 2 34 6 R308 75 1/4W R605 220 R603 [...]

  • Page 23

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 IC701 MM1501XNRE AUDIO SW(MONO) IC 123 4 5 6 J701_1 0350_9982_05 21PIN 1 10 11 12 13 14 15 16 17 18 19 22 0 21 3 4 5 6 7 8 9 Q702 2SC2412K BUFFER L717 10uH L704 22uH L707 22uH L708 22uH L706 22uH L711 22uH L713 15uH R713 75 1/4W R715 75 1/4W R737 56K R714 68 1/4W R716 75 1/4W R719 75 1/4W [...]

  • Page 24

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 SPEAKER SP351_1 C109-47-148A 4 OHM HS1002 763WAA0160 B701 W4BRH3.5X6X1.0 B702 W4BRH3.5X6X1.0 CP1002 A2502WV2-2P 1 2 Q1002 DTA124EKA MUTE HN C E J703 HTJ-032-03AY FRONT VIDEO 1 23 HN C E J704 HTJ-032-03AW FRONT AUDIO L 1 23 J702 MSJ-2000 HEADPHONEJACK 1 2 3 4 5 6 7 IC1002 AN5276 SOUND AMP I[...]

  • Page 25

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 Q403 DTC114EKA PROTECT :SINCE THESE PARTS MARKED BY CAUTION DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY,USE ONES ARE DANS LA NOMENCLATURE DES PIECES N’UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE :LES PIECES REPAREES PAR UN ETANT ATTENTION R424 1K 1W R803 12K 2W [...]

  • Page 26

    ABC D E F G H ABC D E F G H 2 1 3 4 5 6 7 8 2 1 3 4 5 6 7 8 IC506 LTV-817M-VB FEED BACK 1 2 34 F501 50T040H T4A_L_250V FH501 EYF-52BC FH502 EYF-52BC 2 1 L503 8R200015 DEGAUSS COIL L501 0R8A393F28Y COIL,LINE FILTER 1 2 3 4 RY501 ALKS321 1 2 3 4 IC502 KIA78R09API 9V REG.IC 1234 IC503 KIA278R06PI 6V REG. IC 123 4 TH501 B59209-J80-A10 CP501 A3963WV2-3P[...]

  • Page 27

    WAVEFORMS MICON/TUNER 1 IF/CHROMA 2 3 4 5 10 9 8 7 6 11 13 14 15 The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. NOTE: 0.5µs 1V 10ms 1V 20µs 1V 20µs 1V 50µs 100mV 0.2ms 1V 0.2ms 1V 50µs 0.5V 50µs 100mV 50µs 100mV 20µs 0.5V 20µs 1V 20µs 1V 20µs 1V 12 2ms 200mV H-1[...]

  • Page 28

    WAVEFORMS 21PIN/AV SW 17 18 19 20 21 22 23 24 26 27 The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. NOTE: 20µs 1V 20µs 100mV 20µs 1V 20µs 1V 20µs 1V 20µs 1V 20µs 1V 20µs 200mV 10ms 1V 20µs 1V 16 20µs 100mV DEFLECTION/CRT 33 34 10ms 1V 10ms 10V 31 2ms 200mV 30 2ms 200mV H-2[...]

  • Page 29

    WAVEFORMS The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. NOTE: SOUND AMP 43 2ms 0.5V 40 20µs 50V 41 20µs 50V 45 0.2ms 5V 37 20µs 5V 38 39 20µs 50V 2µs 200V 35 36 10ms 10V 20µs 10V H-3[...]

  • Page 30

    MECHANICAL EXPLODED VIEW I-1 101A 101B 101E 101D 203 101C 101 203 113 102 202 202 202 106 202 202 202 111 203 202 PCB010 (MAIN PCB ASS'Y) 105 203 110 107 108 104 206 206 204 204 205 103 206 206 112 109 201 201 201 PCB110 (CRT PCB ASS'Y) 201 114 114 115 115[...]

  • Page 31

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description 101 AE002603 A3M511G720 CABINET,FRONT ASSY 101A AE001949 701WPJC370 CABINET,FRONT 101B AE000504 711WPA0171 PLATE,FRONT 101C AD301499 713WPA0214 GUIDE,REMOCON 101D AE000505 735WPA0667 BUTTON,BASE 101E AE000890 735WPBA659 BUTTON,FRAME 102 AE002604 A3M511G740 CABINET,BACK ASSY[...]

  • Page 32

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description RESISTORS R003 AE000356 R002T4271J RC 270 OHM 1/4W R004 AE000356 R002T4271J RC 270 OHM 1/4W R005 AE000499 R801R7823J RC 82K OHM 1/10W R006 AE000371 R801R7153J RC 15K OHM 1/10W R101 AE000380 R801R7391J RC 390 OHM 1/10W R102 AD300510 R801R7821J RC 820 OHM 1/10W R103 AD300423 [...]

  • Page 33

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description RESISTORS R426 AE000145 R002T2561J RC 560 OHM 1/2W R427 AE002525 R801R7101J RC 100 OHM 1/10W R428 BZ210150 R002T2010J RC 1 OHM 1/2W R429 AE002598 R002T2562J RC 5.6K OHM 1/2W R430 BZ210164 R002T4104J RC 100K OHM 1/4W R446 AE000353 R002T2471J RC 470 OHM 1/2W ! R501 BZ210206 R[...]

  • Page 34

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description RESISTORS R725 AE000934 R002T2391J RC 390 OHM 1/2W R726 AD301003 R801R7102J RC 1K OHM 1/10W R727 AE000368 R801R7104J RC 100K OHM 1/10W R728 AE000368 R801R7104J RC 100K OHM 1/10W R736 AD301728 R801R7103J RC 10K OHM 1/10W R737 BZ210074 R801R7563J RC 56K OHM 1/10W R738 AE00038[...]

  • Page 35

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description CAPACITORS C218 AE000316 CS0RB04H4K CC 0.022 UF 50V B C220 BZ110042 E02LU1471M CE 470 UF 10V C221 AE000311 CS0RB0315K CC 0.1 UF 25V B C403 BZ110149 E02LT4471M CE 470 UF 35V C404 BZ110180 E02LTD2R2M CE 2.2 UF 250V C407 AE000345 P235W1104J CMP 0.1 UF 100V MKT C408 AD301348 E0[...]

  • Page 36

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description CAPACITORS C725 AE000336 E02LU1101M CE 100 UF 10V C726 AE000325 CS0RCH4Q2J CC 470 PF 50V CH C727 AE000325 CS0RCH4Q2J CC 470 PF 50V CH C731 AE000312 CS0RB0414K CC 0.01 UF 50V B C736 BZ110278 CS0RB0216K CC 1 UF 16V B C741 BZ110096 E50HU2100M CE 10 UF 16V C742 BZ110096 E50HU21[...]

  • Page 37

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description ICS IC101 AE001701 I5PD0F013B IC OECF013B IC102 AD301641 I9UF032310 IC PST3231NR IC199 AE002599 A3M511N015 IC S-24C16AFJA-TB-01 IC201 AE001625 I0WDE2248E IC STV2248E ! IC401 BZ611081 I0WTD81740 IC TDA8174A IC502 BZ611089 I1KA98R09A IC KIA78R09API IC503 AE000475 I1KA98R060 I[...]

  • Page 38

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Part No. Description SWITCHES ! SW501 AE000574 0530105019 SWITCH ESB92S22B VARIABLE RESISTORS VR401 BZ210238 V1K6313BTE VOLUME,SEMI FIXED NVG6TLTAB102 VR420 AE000038 V1K62Q2BT8 VOLUME,SEMI FIXED NVG6THTB471 VR501 BZ210128 V1163H3BTC VOLUME,SEMI FIXED EVNCYAA03BE3 P.C.BOARD ASSEMBLIES PCB010 AE0[...]

  • Page 39

    TOSHIBA Information Systems (UK) Ltd Consumer Products Division, European Service Centre, Admiralty Way, Camberley, Surrey. GU15 3DT[...]