Toshiba 14N21ES Service Manual Download Page 23

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S101X

S101Y

B202

W5RH3.5X5X1.0

IC201

STV2248C

CHROMA IC

L304

10uH

L702

10uH

L703

10uH

L204

10uH

L206

0.22uH

L203

1uH

Q303

2SC2412K

SECAM VL SW

Q301
KTC3881S-RTK

SIF PRE.AMP

Q302

KTC3881S-RTK

IF AMP

Q603
2SC2412K

H.CONT

Q204
2SC2412K

SIF BUFFER

Q602
2SC2412K

PROTECT

Q605

2SC2412K

BUFFER

Q202
2SC2412K

BUFFER

Q601
2SC2412K

RGB SW

Q201
KTC3881S-RTK

VIF PRE.AMP

J701

0350_9982_05

21PIN

CF201

TPWA02B

OUT

CF202_3
TSF5330U

C634

16V

KANP

CF301_1

TSB6308U

SIF SAW FILTER IC

L207

3700005

VCO COIL

R647

560

1/2W

R639

5.6K

R646

8.2K

R644

2.7K

R606

100

R602

100

R645

2.2K

R607

22K

R640

27K

R638

2.2K

R643

470

R714

R629

270

R628

270

R610

1.2K

R611

3.3K

R612

3.3K

R613

3.3K

R608

47K

R616

1.5K

R615

1.5K

R614

1.5K

R703

10K 1/4W

R713

R706

1K 1/4W

R707

1K 1/4W

R708

R709

R301

R306

6.8K

R304

R309

2.2K

R311

2.2K

R310

2.2K

R305

220

1/2W

R312

5.6K

R302

1.5K

R605

220

1/4W

R218

150

R636

47K

R208

R617

R641

22K

R621

560

1/4W

R620

270 1/4W

R601

4.7K

R619

10K

1/4W

R205

560

R618

10K

R623

R702

3.3K

R719

100K

R630

270

R204

270

R303

100

R715

R221

R307

100K 1/4W

R219

R622

330K

R625

R217

R203

R214

2.2K

R215

6.8K

R213

100

1/2W

R202

330

R201

C610

100

16V

C613

470

10V

C216

50V

C602

50V

C611

3.3

50V

C209

16V

C631

50V

C632

16V

C629

16V

C217

16V

C617_1

22 16V KA

C604

50V

C220

470

10V

C210

50V

C706

0.001 B

C705

0.001 B

C609

0.1

C625

47P

C612

0.0015

C614

C624

0.01

C302

150P

C215

0.1

C601

47P

C616

0.0047

C608

0.1

C622

0.1

C623

0.1

C620

0.1

C619

0.1

C618

0.1

C305

0.1

C301

0.001

C304

0.001 B

C306

0.1

C207

0.33

C205

0.001

C605

C201

3P CH

C213

C203

0.01

C212

0.001 B

C630

0.1

C202

0.001

C206

C218

0.022

C303

0.001

C615

C603

C607

C221

0.1

C204

0.0022 B

X601

4.433619MHz

X602

3.579545MHz

CF304

MKT40.4MA110P

CF303

MKT31.9MA110P

D602

1SS133

D603

1SS133

D301

MA77

D604

11E1-EIC

D609

1SS133

D610

1SS133

D611

1SS133

L601

10uH

0305

L202

3.3uH

0305

W828

W822

W838

W829

D607

MTZJ6.8B

D608

MTZJ6.8B

D606

MTZJ6.8B

D709

MTZJ5.1B

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

Q304

KRC103SRTK

SECAM VL SW

CAUTION: DIGITAL TRANSISTOR

Q604

KRA102SRTK

PROTECT

CAUTION: DIGITAL TRANSISTOR

P.CON+8V

GND

P.CON+5V

AUDIO_OUT

FRONT_VIDEO_IN

SW_AUDIO_IN

SCART_AUDIO

B.OUT
G.OUT
R.OUT

TU/RGB

H_OUT

VAMP

RF_AGC

ABCL
V_OUT

H_CONT

AFC

SDA

SCL

PROTECT

SECAM_VL_H

V_OUT

VIDEO_OUT

CVBS_TXT
OSD_B
OSD_G
OSD_R
OSD_FB
FOR_VCR

0.7

0.95

2.7

2.8

FROM POWER

FROM/TO MICON/TUNER

FROM/TO SOUND AMP

(MAIN PCB)

CHROMA/SIF/VIF/21PIN SCHEMATIC DIAGRAM

PCB010

TMB537

4.2

FM_OUT

VCC2

CVBSIN1

GND2

CVBSIN2

B.OUT

G.OUT

R.OUT

OSD_B

OSD_G

OSD_R

OSD_BK

XTAL3

XTAL2

XTAL1

CLPF

X1/VAMP/CHR_OUT

GND1

VCC1

BCL/SAF

VERT

H_OUT

LBF/SSC

SLPF

SCL

SDA

VCC_D

GND_D

AUDIO_OUT

FM_CAP

SIFIN1

SIFIN2

AGCSIFCAP

(5V)

(8V)

PIFIN2

VREF_IF

AGCPIF_CAP

PIFIN1

RF_AGC_OUT

IFPLL

GND_IF

(5V)

VCC_IF

EXT_AUDIO_IN

INT_CVBS_OUT

PIF_LC1

PIF_LC2

Y/CVBS_IN3

CHR

APR

B_EXT/U_EXT

G_EXT/Y_EXT

R_EXT/V_EXT

BLK_EXT

ICATH

CVBSOUT

3.9

4.5

2.0

3.6

4.9

3.8

2.4

3.8

3.9

7.8

4.1

3.2

2.8

3.2

1.7

3.4

3.6

3.4

2.6

1.7

4.5

4.8

4.2

4.1

0.2

2.2

2.4

2.8

5.0

7.8

5.4

4.6

2.0

5.2

5.0

4.9

4.5

1.5

OUT

GND

0.7

2.7

2.8

4.8

3.1

2.7

2.5

0.7

4.4

6.7

0.95

0.26

FROM/TO DEFLECTION/CRT

2.9

7.9

2.28

0.8

7.0

1.5

5.0

3.2

5.1

0.4

8.3

4.6

4.0

8.3

FROM/TO MICON/TUNER

Summary of Contents for 14N21ES

Page 1: ...SERVICE MANUAL PRINTED IN UK 2003 C COLOURTELEVISION 14N21ES TOSHIBA FILE NO 050 200302 ...

Page 2: ...which has the same character Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark the designated parts must be used 4 PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING There are parts which use the insulation material such as a tube or tape for safety or which are assembled in the condition that these do not...

Page 3: ...USED WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON TUNER CHROMA SIF VIF 21PIN POWER DEFLECTION CRT SOUND AMP WAVEFORMS MECHANICAL EXPLODED VIEW MECHANICAL REPLACEMENT PARTS LIST ELECTRICAL REPLACEMENT PARTS LIST A1 1 A1 1 A1 1 A2 1 A3 1 A3 5 B1 1 B2 1 B2 2 C 1 C 1 C 2 D 1 D 5 E 1 E 2 F 1 F 4 G 1 G 2 G 3 G 4 G 5 G 6 G 7...

Page 4: ... E4 X Z 2 S1 S10 E5 E12 CH Coverage S11 S41 E21 E69 Intermediate PAL SECAM U VH SECAM VL Frequency Picture FP 38 9 38 9 34 4MHz Sound FS 33 4 32 4 40 9MHz FP FS 5 5 6 5 6 5MHZ PAL DK SECAM DK Picture FP 38 9 38 9 MHz Sound FS 32 4 32 4 MHz FP FS 6 5 6 5MHz Auto Tuning Method ALL Band Not C C I R CH Plan Preset CH 100 Stereo Dual TV Sound No Tuner Sound Muting Yes G 3 Power Power Source AC 230V AC ...

Page 5: ...ut Source No Source No Control Level Yes Volume Yes Brightness Yes Contrast Yes Color Yes Tint NTSC Only Yes Sharpness Yes Tuning Yes Bass No Treble No Balance No Back Light No Nicam ST No Tone 1 2 A B No Surround On Off No Pin Code No AV Yes Skip Yes Channel Yes Hotel Lock No Sleep Timer No Selectable Picture Yes Wide Mode No Sound Mute Yes G 8 OSD Language English French Spanish Germany Italian ...

Page 6: ... T B Yes Reveal Yes TIMED PAGE SUB PAGE Yes CALL TEXT INDEX Yes INPUT SELECT Yes TEXT HOLD Yes TIME TXCL Yes 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 CH Allocation Yes Just Clock Function No Game Position No CH Label No VM Circuit No Full OSD No Unitext No Fastext Yes Top Text Yes...

Page 7: ...to 75 ohm Antenna Adapter No 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 On Timer Yes Red Green Stand by ON No On Timer No Terminals Front Video Input Yes Audio Input Yes Other Termina...

Page 8: ...Double Brown Dimensions W x D x H mm 440 x 408 x 380 Design As per Buyer s Description of Origin Yes Drop Test Natural Dropping At 1 Corner 3 Edges 6 Surfaces Height cm 62 Container Stuffing 866 Sets 40 container G 17 Material Cabinet Cabinet Front PS 94V0 NON HALOGEN Cabinet Rear PS 94V0 NON HALOGEN PCB Non Halogen Demand Yes Eyelet Demand Yes A3 5 ...

Page 9: ...ed Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 1 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 1 2 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION 1 Clean the spot where the cap was locate...

Page 10: ...using a blower type IC desoldering machine Refer to Fig 2 2 2 Fig 2 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desoldering the IC leads completely When IC starts moving back and forth easily after desoldering completely pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering...

Page 11: ...2 8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So be always sure to replace the IC in this case Finally confirm the soldering status on four sides of the IC using a magnifying glass Confirm that no abnormality is found on the soldering position and insta...

Page 12: ...AL DATA of MEMORY IC Refer to the WHEN REPLACING EEPROM MEMORY IC VOL MIN 8 Writing of EEPROM initial data NOTE Do not use this for the normal servicing VOL MIN Display of the Adjustment MENU on the screen Refer to the ELECTRICAL ADJUSTMENT On Screen Display Adjustment 9 CONFIRMATION OF HOURS USED POWER ON total hours can be checked on the screen Total hours are displayed in 16 system of notation ...

Page 13: ...is now selected and should blink Using the VOL button on the remote step through the ADDRESS until required ADDRESS to be changed is reached Press OK to select DATA When DATA is selected it will blink Again step through the DATA using VOL button until required DATA value has been selected Pressing OK will take you back to ADDRESS for further selection if necessary Repeat steps 3 to 6 until all dat...

Page 14: ...ILTER BANDPASS H POSI OSD V POSI OSD H POSI TEXT V POSI TEXT H POSI 60 Fig 1 2 Fig 1 1 9 EXT VCO Status MMM 35 H POSI OSD 36 V POSI OSD 37 H POSI TEXT 38 V POSI TEXT 39 H POSI 60 00 CUT OFF 135 57 130 57 44 1 2 3 4 5 Place the set with Aging Test for more than 15 minutes Receive the UHF 63 1dB Connect the digital voltmeter to pin 5 of CP101 Activate the adjustment mode display of Fig 1 1 and press...

Page 15: ...nel button 11 on the remote control to select V SIZE 50 Adjust by using the VOL button on the remote control so that the Up Down OVER SCAN Quantity becomes equal to the Right Left OVER SCAN Quantity Receive a broadcast and check if the picture is normal Receive the monoscope pattern of NTSC Audio Video Input Using the remote control set the brightness and contrast to normal position Activate the a...

Page 16: ...tness contrast and color to normal position Connect the oscilloscope to TP022 Activate the adjustment mode display of Fig 1 1 and press the channel button 25 on the remote control to select COLOR CENT Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100 and 0 is set to 5 scales on the screen of the oscilloscope Press the VOL button on the remote control until ...

Page 17: ...Switch the color bar generator from the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets Combine red blue magenta and green by adjusting the pair of 6 pole magnets Adjust the crosshatch pattern to change to white by repeating steps 6 and 7 Turn the unit on and let it warm up for...

Page 18: ...TS LOCATION GUIDE WIRING CONNECTION MAIN PCB J1001 J702 J703 FB401 VR501 TP501 R503 VR401 VR420 J701 CP101 TU001 TP001 SPEAKER CP1001 CD801 CP501 AC IN CD501 CRT CP502 CRT CP401 PH001 CP802A TP022 R803 TP023 R807 J801 CRT CP801 CP802B CD802 CRT PCB D 5 ...

Page 19: ...T PIFIN1 PIFIN2 VERT 47 SDA H_OUT 48 52 SCL 51 B OUT G OUT 31 30 R OUT 32 P CON 5V P CON 8V 3 TRIGGER INPUT 10 1 Vs POWER OUTPUT P CON 25V Q803 BULE OUT Q802 GREEN OUT Q801 RED OUT J801 9 3 7 F 8 Q402 H DRIVE Q401 H OUTPUT I2C DY 1 F S 2 3 HV B P CON 25V CRT V801 2 8 6 1 3 2 SPEAKER SP1001 5 14 12 SOUND B 17 B P CON 8V D Q501 POWER SW TR 56 KEY_IN CH DOWN CH UP CVBSIN2 20 AV1 7 J701 3 1 2 6 19 20 ...

Page 20: ...D516 C521_1 C522 C515 D513 D510 C517 D511 Q504 R521 R506 R002 R001 R526 C506 W063 R517 D505 Q507 R512 D521 D518 D514 D502 R532 W027 D406 W072 W078 W081 W088 W077 W079 W067 W068 D407 W048 R1009 R741 W055 W066 W059 W058 W057 C519 R514 W056 W065 OS101 C525 D517 W037 W034 C508 W062 W064 D509 C514 D515 D512 D519 R525 D525 W098 R003 R004 R619 IC199 X101 L101 C121 W007 W032 W820 W821 L102 W818 W031 W030 ...

Page 21: ...6 C622 C623 R005 C004 C005 R006 R623 R610 R611 R612 R613 R641 R221 I C 1 0 1 R102 C1009 C704 IC703 C746 R104 R139 R108 C1004 R1003 R1004 R135 Q102 C1006 Q604 Q602 R504 R513 R519 R515 R524 Q510 R507 Q506 R508 Q509 R541 Q508 IC102 C108 C109 Q601 C119 R114 R115 R617 R615 R616 R614 C112 C111 R113 C116 C113 R111 C106 C104 C103 R110 C102 R116 R128 R117 R124 R123 R138 R134 R106 R105 C120 R120 R142 C114 R...

Page 22: ...R03 AB 2PXGPI BT002 R03 AB 2PXGPI TP001 VCO IC102 R3111N311A C RESET IC 1 2 3 4 5 Q102 KRC111SRTK LED SW CAUTION DIGITAL TRANSISTOR Q103 KRA102SRTK LED SW G R D105_1 LTL 1BEFJ 002A IC101 OECF005B MICON IC 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 31 32 33 34 35 36 37 38 39 4 40 41 42 43 44 45 46 47 48 49 5 50 51 52 53 54 55 56 57 58 59 6 60 61 62 63 64 7 8 9 Vout B GND O...

Page 23: ... C618 0 1 B C305 0 1 B C301 0 001 B C304 0 001 B C306 0 1 B C207 0 33 B C205 0 001 B C605 1 B C201 3P CH C213 1 B C203 0 01 B C212 0 001 B C630 0 1 B C202 0 001 B C206 1 B C218 0 022 B C303 0 001 B C615 1 B C603 1 F C607 1 F C221 0 1 B C204 0 0022 B X601 4 433619MHz X602 3 579545MHz CF304 MKT40 4MA110P CF303 MKT31 9MA110P D602 1SS133 D603 1SS133 D301 MA77 D604 11E1 EIC D609 1SS133 D610 1SS133 D611...

Page 24: ...B C529 0 001 250V KX C528 470P 250V KX C541 0 022 B C502 0 001 2KV B C530 0 1 B C520 470P 500V B C503 0 001 2KV B C513 0 01 B C505 0 1 275V PHE840 C518 0 22 275V PHE840 C524 0 001 2KV R C543 0 33 B C501 0 0022 250V KX C532 220P B C517 0 001 2KV R D508 1N4937 D507 1SS133 D510 RU2AM EIC D519 1SS133 D521 1SS133 D518 1SS133 D514 1SS133 D516 SB290S D513 SB290S D511 1N4937 D512 SB10 03A3 D515 SB10 03A3 ...

Page 25: ...16V KA C423 2 2 250V MHE C803 1 250V YK C446 22 50V MHE C403 470 35V YK C448 10 250V YK C414 100 35V YK C412_1 0 047 MMTV C819 0 001 2KV B C435 0 1 100V MKT C437 0 39 250V PMS C443 0 0082 1 25KV MPP C805 470P B C806 680P B C413 0 082 B C422 0 22 100V MKT C440 0 01 100V MKT C804 470P B D406 1SS133 D410 AU02A EIC D405 AU02A EIC D407 1SS133 D403 11E1 EIC L401 4 7mH 0909 W815 W810 TP401 TP402 C417 10 ...

Page 26: ...2 12K R1003 100K R1005 68K 1 4W R1004 150K R1009 47K 1 4W R1010 33 1 2W R712 820 1 4W R740 220 1 4W R741 1K 1 4W C1002 10 16V KA C711 100 10V KA C1001 470 16V YK C1007 10 16V KA C1005_1 1 50V KA C740 10 16V KA C1006 470P B C1004 820P B C746 0 01 B C1009 0 0047 B C704 0 001 B L714 10uH 0305 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME WAS RE...

Page 27: ... following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE 0 2ms 1 00V 0 2ms 1 00V 0 5µs 1 00V 0 5µs 1 00V 10ms 1 00V 20us 1 00V 20us 0 50V 20µs 1 00V 2ms 0 50V 20µs 1 00V 20µs 200mV 100ns 20mV 20µs 1 00V 20µs 1 00V 11 500µs 50mV ...

Page 28: ... 28 29 The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE 20µs 5 00V 10ms 1 00V 10ms 10 0V 10ms 10 0V 20µs 10 0V 20µs 50V 20µs 50V 20µs 50V 2us 200V 20µs 5 00V 500us 100mV 10us 200mV 500us 500mV 16 20µs 1 00V ...

Page 29: ...W I 1 101 PCB110 CRT PCB ASS Y PCB010 MAIN PCB ASS Y 101A 101E 101D 101C 101B SP1001 202 202 207 106 104 203 105 112 113 109 111 110 FB401 TU001 SW501 108 205 205 205 205 V801 L503 J801 107 204 204 204 204 206 204 103 102 201 ...

Page 30: ...x8 204 8117540A64 SCREW TAPPING B0 TRUSS 4x16 205 8121J50B54 SCREW TAP TITE P GW20 5x28 206 8110630804 SCREW TAP TITE P BRAZIER 3x8 207 8107630804 SCREW TAP TITE S BRAZIER 3x8 791WHA0090 LAMIFILM BAG 792UHA0165 PACKAGE TOP 792UHA0166 PACKAGE BOTTOM 793UCDB084 GIFT BOX A3L811M975 INSTRUCTION BOOK KIT JB5EDI00 POLYBAG INSTRUCTION RED CAUTION J3L811A1A INSTRUCTION BOOK RU J3L81101A INSTRUCTION BOOK S...

Page 31: ...R142 R801R7101J RC 100 OHM 1 10W R528 R002T4103J RC 10K OHM 1 4W R143 R801R7101J RC 100 OHM 1 10W R530 R801R7684J RC 680K OHM 1 10W R144 R801R7103J RC 10K OHM 1 10W R531 R801R7102J RC 1K OHM 1 10W R145 R801R7271J RC 270 OHM 1 10W R532 R002T4102J RC 1K OHM 1 4W R146 R801R7103J RC 10K OHM 1 10W R533 R801R7471J RC 470 OHM 1 10W R201 R801R7390J RC 39 OHM 1 10W R534 R801R7563J RC 56K OHM 1 10W R202 R80...

Page 32: ...K CC 0 022 UF 50V B C519 E02LT2102M CE 1000 UF 16V C002 E02LU0471M CE 470 UF 6 3V C520 C0JTB05Q2K CC 470 PF 500V B C003 E02LU2470M CE 47 UF 16V C521 E62NFB221M CE 220 UF 160V C004 CS0RCH4Q1J CC 47 PF 50V CH C522 E5EZT2102M CE 1000 UF 16V C005 CS0RCH4Q1J CC 47 PF 50V CH C524 C03L0R713K CC 0 001 UF 2KV R C006 C0JTCH412J CC 100 PF 50V CH C525 E02LU2221M CE 220 UF 16V C102 CS0RB0315K CC 0 1 UF 25V B C...

Page 33: ...ZENER MTZJ3 6B T 77 L102 02167F100J COIL 10 UH D505 D2WXB290S0 DIODE SILICON SB290S L202 02167F3R3J COIL 3 3 UH D506 D1VT001330 DIODE SILICON 1SS133T 77 L203 021LA61R0M COIL 1 UH D507 D1VT001330 DIODE SILICON 1SS133T 77 L204 021LA6100K COIL 10 UH D508 D2WXN49370 DIODE SILICON 1N4937 L206 021LA6R22M COIL 0 22 UH D509 D2WT011E10 DIODE SILICON 11E1 EIC L207 033700005R COIL VIDEO IFT 3700005 D510 D2WX...

Page 34: ...CP802A 067U010049 WIRE HOLDER B2013H02 10P CP802B 067U010049 WIRE HOLDER B2013H02 10P CUS011 800WFAA008 CUSHION C CUS012 800WFAA006 CUSHION A EL001 124116281A EYE LET XRY16X28BD EL002 124120301A EYE LET XRY20X30BD F501 080NT04004 FUSE 50T040H FB401 043214034F TRANSFORMER FLYBACK FQI 14B004 FH501 06710T0006 HOLDER FUSE EYF 52BC FH502 06710T0006 HOLDER FUSE EYF 52BC OS101 0773071001 REMOTE RECEIVER ...

Page 35: ...TOSHIBA Information Systems UK Ltd Consumer Products Division European Service Centre Admiralty Way Camberley Surrey GU15 3DT ...

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