Dell 21N21E2- Manuals

Page 2 - SERVICING NOTICES ON CHECKING; USE THE DESIGNATED PARTS; HOW TO ORDER PARTS; AVOID AN ELECTRIC SHOCK

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 thecabinet, chassis and parts. Make sure to keep theindications and notices in the operation manual. 3. USE THE DESIGNATED PARTS 5. TAKE ...

Page 3 - CONTENTS

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

Page 4 - GENERAL SPECIFICATIONS

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 ...

Page 9 - REMOVAL OF ANODE CAP; REMOVAL; DISASSEMBLY INSTRUCTIONS; NOTE

1. REMOVAL OF ANODE CAP Read the following NOTED items before starting work. After turning the power off there might still be a potentialvoltage that is very dangerous. When removing theAnode Cap, make sure to discharge the Anode Cap'spotential voltage.Do not use pliers to loosen or tighten the Anod...

Page 12 - SERVICE MODE LIST; Set Key; CONFIRMATION OF HOURS USED

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, VO...

Page 13 - ELECTRICAL ADJUSTMENTS; ADJUSTMENT PROCEDURE; CAUTION

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 pe...

Page 14 - NOTE: Adjust after performing CUT OFF adjustment.

ELECTRICAL ADJUSTMENTS D-2 2-8: HORIZONTAL POSITION 1. 2. 3. 4. 5. 6. 7. 8. Receive the monoscope pattern from the PatternGenerator.Using the remote control, set the brightness andcontrast to normal position.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (08) on the rem...

Page 15 - RF

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 contrastto normal position.Connect the oscilloscope to TP024.Activate the adjustment mode display of Fig. 1-1 andpress the channel button (20) on...

Page 17 - ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION); MAIN PCB; CRT PCB

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...

Page 18 - BLOCK DIAGRAM

MEMORY ICIC199 S-24C16AFJA-TB-01 AUDIO SW ICIC701 MM1501XNRE MICON W/T.TEXT ICIC101 OECF013B CHROMA ICIC201 STV2248E V-DRIVE ICIC401 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.CO...

Page 19 - PRINTED CIRCUIT BOARDS; SOLDER SIDE

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 D40...

Page 21 - MICON/TUNER SCHEMATIC DIAGRAM

A B C D E F G H A B C 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 R...

Page 22 - IF/CHROMA SCHEMATIC DIAGRAM

A B C D E F G H A B C 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_1J1981M 1 2 3 4 5 CF201 TPTRD5M50B01-A0 CF204 MKT31.9MA110P CF303 MKT40.4MA1...

Page 23 - 1PIN/AV SW SCHEMATIC DIAGRAM

A B C D E F G H A B C 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 1 2 3 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 ...

Page 24 - SOUND AMP SCHEMATIC DIAGRAM

A B C D E F G H A B C 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...

Page 25 - DEFLECTION/CRT SCHEMATIC DIAGRAM

A B C D E F G H A B C 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 REP...

Page 26 - POWER SCHEMATIC DIAGRAM

A B C D E F G H A B C 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 1 2 3 4 IC503 KIA278R06P...

Page 27 - WAVEFORMS

WAVEFORMS MICON/TUNER 1 IF/CHROMA 2 3 4 5 1 0 9 8 7 6 1 1 1 3 1 4 1 5 The following waveforms were measured at the point of the correspondingballoon number in the schematic diagram. NOTE: 0 . 5 µ s 1 V 1 0 m s 1 V 2 0 µ s 1 V 2 0 µ s 1 V 5 0 µ s 1 0 0 m V 0 . 2 m s 1 V 0 . 2 m s 1 V 5 0 µ s 0 . 5 V ...

Page 29 - SOUND AMP

WAVEFORMS The following waveforms were measured at the point of the correspondingballoon number in the schematic diagram. NOTE: SOUND AMP 4 3 2 m s 0 . 5 V 4 0 2 0 µ s 5 0 V 4 1 2 0 µ s 5 0 V 4 5 0 . 2 m s 5 V 3 7 2 0 µ s 5 V 3 8 3 9 2 0 µ s 5 0 V 2 µ s 2 0 0 V 3 5 3 6 1 0 m s 1 0 V 2 0 µ s 1 0 V H-...

Page 30 - MECHANICAL EXPLODED VIEW

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

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 BUTT...

Page 32 - ELECTRICAL REPLACEMENT PARTS LIST

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 A...

Page 39 - TOSHIBA

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