Toshiba 14N21E2 Service Manual Download Page 17 | Manualshive

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D-5

ELECTRICAL ADJUSTMENTS

4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)

MAIN PCB

CRT PCB

FB401

TP002

TP003

CP101

TU001

CRT

CP401

VR501

VR401

VR420

R527

TP023

CP803A

CD803

CP802A

CD802

J801

CP806

CP801

CD801
GND CRT

SPEAKER

CP1001

TP024

TP502

CP501

AC IN

CD501

J701

DEGAUSS COIL

L503

CP502

R805

R807

CP802B

CP803B

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Summary of Contents for 14N21E2

Page 1: ...SERVICE MANUAL PRINTED IN UK 2003 C COLOURTELEVISION 14N21E2 TOSHIBA ...

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: ... WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON TUNER CHROMA SIF VIF 21PIN SOUND AMP FRONT AV DEFLECTION CRT POWER 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 1 D 1 D 5 E 1 E 2 F 1 F 4 G 1 G 2 G 3 G 4 G 5 G ...

Page 4: ...nation Hyper Tuning System F Synth Input Impedance VHF UHF 75 ohm E2 E4 X Z 2 S1 S10 E5 E12 CH Coverage S11 S41 E21 E69 Intermediate B G D K I Frequency Picture FP 38 9 38 9 38 9 MHz Sound FS 33 4 32 4 32 9 MHz FP FS 5 5 6 5 6 0MHz Preset CH 100 Stereo Dual TV Sound No Tuner Sound Muting Yes G 3 Power Power Source AC 230V 240V AC 50Hz DC Power Consumption at AC 44 W at AC 230 V 50 Hz Stand by at A...

Page 5: ...ntrol Level Yes Volume Yes Brightness Yes Contrast Yes Colour 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 Broadcasting Station Name Yes Hotel Lock No Sleep Timer No Selectable Picture Yes Wide Mode No Sound Mute Yes G 8 OSD Language English French Spanish Germany It...

Page 6: ...s 7 Yes 8 Yes 9 Yes 0 Yes Volume Up Yes Volume Down Yes Previous Yes Select Picture Yes Menu Yes OK Enter Yes EXIT Yes Audio Select No On OffTimer Yes Mute Yes DSP surround Virtual Dolby No Woofer Bass No Picture Size No T TEXT Keys TEXT MIX TV Yes CH Up Page Up Yes CH Down Page Down Yes Red Yes Green Yes Yellow Yes Cyan Yes TEXT F T B Yes Reveal Yes TIMED PAGE SUB PAGE Yes CALL TEXT INDEX Yes INP...

Page 7: ... Leak Test Protect Yes Power ON Memory Yes Previous Quick View Yes Panel Lock Yes Double Focus Dynamic Focus No Wss Signal Wide Change No Virtual Dolby Surround No Hotel Lock No G 12 Accessories Owner s Manual Language Polish Hungarian Czech Rumanian Bulgarian Russian Slovenian Croatian English w Guarantee Card No Remote Control Unit Yes Rod Antenna Yes Poles 2Pole Terminal D type Loop Antenna No ...

Page 8: ...RGB INPUT Yes x1 Component Input No Diversity No Ext Speaker No DC Jack 12V Center No VHF UHF Antenna Input D Type AC Outlet No G 14 Set Size Approx W x D x H mm 362 x 360 x 320 5 G 15 Weight Net Approx 9 5 kg lbs Gross Approx 11 5kg lbs G 16 Carton Master Carton No Content Sets Material Dimensions W x D x H mm Description of Origin Gift Box Yes Material Double Brown Dimensions W x D x H mm 440 x ...

Page 9: ...ip 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 DISASSEMBLY INSTRUCTIONS GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 1 1 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 s...

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 always be 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: ...ADDRESS and DATA should appear as FIG 1 ADDRESS 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 selectio...

Page 13: ...in Fig 1 2 Press the MENU button on the remote control to end the adjustments NO 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 FUNCTION CUT OFF RF AGC AGC GAIN R DRIVE R CUTOFF G DRIVE G CUTOFF B DRIVE H POSI 50 V POSI 50 V POSI 60 V SIZE 50 V SIZE 60 VCO COARSE VCO FINE VCO COARSE L1 VCO FINE L1 BRIGHT CENT BRIGHT MAX BRIGHT MIN NO 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 ...

Page 14: ... monoscope pattern from the Pattern Generator Using the remote control set the brightness and contrast to normal position Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask Adjust the VR420 until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum 2 9 VERTICAL POSITION VERTICAL LINEARITY 1 2 3 4 2 10 BRIGHT CENT 1 2 3 4 5 6 7 Receive the P...

Page 15: ...ion of Fixed Value Step No Please check if the fixed values of the each adjustment items are set correctly referring below NO 02 04 06 07 09 10 18 19 20 21 23 24 26 27 30 31 32 33 34 35 36 37 38 FUNCTION AGC GAIN R CUTOFF G CUTOFF B DRIVE V POSI 50 V POSI 60 BRIGHT MAX BRIGHT MIN TINT SHARP CONTRAST MAX CONTRAST MIN COLOR MAX COLOR MIN M B CUT OFF CVBS OUT APR THRESHOLD BELL FILTER BANDPASS H POSI...

Page 16: ...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 17: ...IDE WIRING CONNECTION MAIN PCB CRT PCB FB401 TP002 TP003 CP101 TU001 CRT CP401 VR501 VR401 VR420 R527 TP023 CP803A CD803 CP802 A CD802 J801 CP806 CP801 CD801 GND CRT SPEAKER CP1001 TP024 TP502 CP501 AC IN CD501 J701 DEGAUSS COIL L503 CP502 R 8 0 5 R 8 0 7 CP802B CP803B ...

Page 18: ... FBT Q803 V801 CRT 3 9 7 R G B Heater F 8 4 1 27 25 28 7 16 15 11 20 6 GREEN OUT BLUE OUT Q201 POWER Q501 F501 AC IN 3 4 1 2 L501 L503 DEGAUSS COIL D501 D504 RECTIFIER T501 5 17 3 8 Q103 LED SW DY PIFIN1 OSD_R OSD_G OSD_B OSD_BK SCL SDA CVBSIN2 BLK_EXT R_EXT V_EXT G_EXT Y_EXT B_EXT U_EXT EXT_AUDIO_IN R OUT H OUT G OUT B OUT VERT XTAL1 INT_CVBS_OUT CVBSIN1 FM_OUT AUDIO_OUT V DRIVE IC Q507 FEED BACK...

Page 19: ... W020 W023 C608 C622 C623 W013 D108 C131_1 D102 L101 IC101 X101 W801 R128 R129 W015 W017 L714 W028 R1009 W029 C1003_1 C1005_1 R1011 C122 R126 R108 W031 W032 C533 Q507 D528 R513 D514 D524 D523 D521 R524 D518 W034 R647 D515 D512 W036 R621 W037 R512 W038 W040 W041 W042 W044 HS402 W045 L102 CP001 C401 D604 C634 R528 W049 W052 W053 W057 W058 W059 W060 W061 W062 B1001 W066 W067 W055 W051 R107 C521 C525 ...

Page 20: ... R711 IC703 C746 R132 Q103 Q102 R137 R521 C518 R522 R1006 R1003 C1004 R515 Q510 R507 Q403 R644 R005 R006 C105 C141_1 R151 C140 R152 R143 R140 R141 R142 R148 C139_1 C101 R116 C108 C109 C120 R120 R117 R134 R124 R123 IC102 C114 C116 C118_1 C102 C103 R110 C111 C112 C106 R111 C113 R113 C104 R115 C119 R147 R146 R145 R144 R106 R105 R740 R741 R1004 R710 R109 Q506 R508 Q512 C513 R519 Q508 Q509 C529 C530 R5...

Page 21: ...505R CH DOWN SW101 EVQ21505R CH UP IC199 S 24C16AFJA TB 01 MEMORY IC 1 2 3 4 5 6 7 8 TM101 RC GX010 BT001 R03 AB 2PXGPI BT002 R03 AB 2PXGPI OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME CP001 003P 2100 CAUTION DIGITAL TRANSISTOR CP101 06JQ ST 1 2 3 4 5 6 Vout B GND OS101 RPM7138 H5 1 2 3 Q102 KRA102SRTK GREEN LED DRIVE IC102 PST3231NR RESET ...

Page 22: ... VIF PRE AMP Q204 2SC2412K SIF BUFFER Q605 2SC2412K BUFFER 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 D709 MTZJ5 1B D609 MTZJ5 6B X601 100CT4R408 4 433619MHz X602 100CT3R509 3 579545MHz L202 3 3uH 0305 L601 10uH 0305 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM I...

Page 23: ... 0 0047 B C1002 47P CH C1005_1 0 33 50V KA C1006 220 16V YK C1001 470 16V YK C1003_1 0 1 50V KA C711 100 10V YK C1007 10 16V KA C745 10 16V KA C744 10 16V KA 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 L714 10uH 0305 IC703 NJM2233BM T1 AUDIO SW MONO IC 1 2 3 4 5 6 7 8 IC1001 AN7511 SOUND AMP IC ...

Page 24: ...P CH C422_1 0 22 100V MKT C437 0 39 250V PMS C443 0 0082 1 25KV CMPP C412 0 047 MMTV C413 0 082 B C401 220P CH C819 0 001 2KV B C440 0 01 100V MMTS C435_1 0 1 100V MKT W815 C446 22 50V YK C423 2 2 250V MHE C408 10 16V KA C403 470 35V YK C448 10 250V YK C414 100 35V YK C404 1000 10V YK D809 1SS133 D808 1SS133 D807 1SS133 D403 11E1 EIC D406 11E1 EIC D407 11E1 EIC D410 AU02A EIC D405 AU02A EIC D404 A...

Page 25: ... ECQUL C517 0 001 2KV R C506_1 0 47 F C516_1 0 047 MMTV C532 0 001 250V KX C528 0 0015 250V KX C503 0 001 2KV B C518 0 047 B C504 0 001 2KV B C524 0 0033 B C501_2 0 1 275V ECQUL C527 470P 250V KX C526_1 0 0033 B C507 0 0015 2KV R C509 0 001 2KV R W825 C508 100 10V YK C505 82 400V USR C519 1 50V KA C514 10 16V KA C533 10 16V KA D514 1SS133 D515 SB140 EIC D507 1SS133 D506 1SS133 D501 RM11C EIC D502 ...

Page 26: ...1 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 12 2ms 200mV 13 20µs 1V 14 20µs 1V 16 20µs 100mV ...

Page 27: ...orresponding balloon number in the schematic diagram NOTE 17 19 20 20µs 1V 20µs 1V 20µs 1V 23 24 20µs 200mV 10ms 1V 21 20µs 1V DEFLECTION CRT 33 34 35 10ms 1V 10ms 10V 10ms 10V 37 20µs 5V 36 20µs 10V 18 20µs 100mV 29 500us 500mV SOUND AMP FRONT AV 27 2ms 200mV 28 20µs 1 00V ...

Page 28: ...WAVEFORMS H 3 The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE 38 2µs 200V 39 20µs 50V 40 20µs 50V 41 20µs 50V ...

Page 29: ...L EXPLODED VIEW I 1 102 202 202 202 202 204 202 106 109 201 201 201 201 PCB110 CRT PCB ASS Y 112 112 205 206 207 103 104 105 205 206 PCB010 MAIN PCB ASS Y 113 107 110 101D 101 101A 101E 101C 101B 108 203 111 203 ...

Page 30: ...HOLDER ANODE WIRE 111 BZ710039 8995034000 CORD CLIP UL CO 112 AE002090 8994101000 HOLDER CRT WIRE 113 AE001371 800WQ0A002 FELT SHEET 201 BZ710275 8121J50B54 SCREW TAP TITE P GW20 5x28 202 BZ710035 8117540A64 SCREW TAPPING B0 TRUSS 4x16 203 BZ710031 8110630A04 SCREW TAP TITE P BRAZIER 3x10 204 BZ710030 8110630804 SCREW TAP TITE P BRAZIER 3x8 205 BZ710019 8109630802 SCREW TAP TITE B BRAZIER 3x8 206 ...

Page 31: ...T4221J RC 220 OHM 1 4W R137 AE000972 R903N8271J RC 270 OHM 1 8W R138 BZ210122 R002T4472J RC 4 7K OHM 1 4W R139 AE000979 R903N8472J RC 4 7K OHM 1 8W R140 AE000973 R903N8272J RC 2 7K OHM 1 8W R141 AE000973 R903N8272J RC 2 7K OHM 1 8W R142 AE000973 R903N8272J RC 2 7K OHM 1 8W R143 AE000975 R903N8332J RC 3 3K OHM 1 8W R144 AE001138 R903N8182J RC 1 8K OHM 1 8W R145 AE001138 R903N8182J RC 1 8K OHM 1 8W ...

Page 32: ...1R2J R METAL OXIDE 1 2 OHM 2W R528 BZ210182 R002T4103J RC 10K OHM 1 4W R532 AD300780 R903N8102J RC 1K OHM 1 8W R541 AE000974 R903N8273J RC 27K OHM 1 8W R601 AE000969 R903N8152J RC 1 5K OHM 1 8W R602 AE000965 R903N8101J RC 100 OHM 1 8W R606 AE000965 R903N8101J RC 100 OHM 1 8W R607 AE000971 R903N8223J RC 22K OHM 1 8W R608 AE000980 R903N8473J RC 47K OHM 1 8W R618 AE000966 R903N8103J RC 10K OHM 1 8W R...

Page 33: ... UF 16V B C112 AE000327 CS0RCH4W1J CC 82 PF 50V CH C113 AE000953 CS0KCH4H1J CC 22 PF 50V CH C114 AE000311 CS0RB0315K CC 0 1 UF 25V B C115 BZ110187 E02LT0102M CE 1000 UF 6 3V C116 AE000317 CS0RB04Q3K CC 0 0047UF 50V B C118 BZ110151 CS0RF0415Z CC 0 1 UF 50V F C119 BZ110278 CS0RB0216K CC 1 UF 16V B C120 BZ110278 CS0RB0216K CC 1 UF 16V B C121 AE000326 CS0RCH4U1J CC 68 PF 50V CH C122 BZ110096 E50HU2100...

Page 34: ...23 CD39E0M13M CC 0 001 UF 250V C533 BZ110096 E50HU2100M CE 10 UF 16V C601 AE000324 CS0RCH4Q1J CC 47 PF 50V CH C602 BZ110074 E50HU5010M CE 1 UF 50V C603 BZ110162 CS0RF0216Z CC 1 UF 16V F C604 BZ110074 E50HU5010M CE 1 UF 50V C605 BZ110162 CS0RF0216Z CC 1 UF 16V F C607 BZ110162 CS0RF0216Z CC 1 UF 16V F C608 BZ110255 CQGTB0415K CC 0 1 UF 50V B C609 AE000311 CS0RB0315K CC 0 1 UF 25V B C610 AD301535 E02...

Page 35: ...3T 77 D522 BZ410100 D97U01801B DIODE ZENER MTZJ18B T 77 D523 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D524 AE000330 D97U03R61B DIODE ZENER MTZJ3 6B T 77 D525 BZ410122 D97U01201B DIODE ZENER MTZJ12B T 77 D528 BZ410021 D97U05R61B DIODE ZENER MTZJ5 6B T 77 D601 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D602 BZ410006 D1VT001330 DIODE SILICON 1SS133T 77 D603 BZ410006 D1VT001330 DIODE SILICON 1SS...

Page 36: ...OIL 10 UH T401 BZ310157 045009003J TRANS HORIZONTAL DRIVE ETH09K14BZ T501 AE000943 048129110H TRANSFORMER SWITCHING 8129110H JACKS J701 BZ614323 063G100042 SOCKET 21PIN 0350_9982_05 J702 BZ614322 060Q401077 RCA JACK AV1 09D 3 J703 BZ614321 060Q401076 RCA JACK AV1 09D 4 J801 BZ614434 066F120018 SOCKET CATHODE RAY TUBE ISMS01S J1001 AD302163 060J121014 JACK RCA 3 5 MSJ 035 12A_PC SWITCHES SW101 BZ61...

Page 37: ...43214039F TRANSFORMER FLYBACK FNI 14B002 FH501 BZ614005 06710T0006 HOLDER FUSE EYF 52BC FH502 BZ614005 06710T0006 HOLDER FUSE EYF 52BC OS101 AD301048 0773071001 REMOTE RECEIVER RPM7138 H5 RY501 BZ612009 0560V20115 RELAY ALKS321 SP1001 BZ614428 070C132019 SPEAKER SA08A05BWC TH501 AE000944 D8E0J80A10 DEGAUSS ELEMENT B59104 J80 A10 TM101 AE001365 076N0GX010 TRANSMITTER RC GX010 TU001 AE001365 0145517...

Page 38: ...TOSHIBA Information Systems UK Ltd Consumer Products Division European Service Centre Admiralty Way Camberley Surrey GU15 3DT ...

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