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Toshiba 21ARF46, Service Manual

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Toshiba 21ARF46 Service Manual Download Page 13

12

MODEL 

21ARF46

 BLOCK DIAGRAM: MAIN Unit

21ARF46

Summary of Contents for 21ARF46

Page 1: ...FILE NO 2006 SERVICE MANUAL COLOR TELEVISION 21ARF46 DOCUMENT CREATED IN JAPAN Feb 2006 ...

Page 2: ... SCHEMATIC DIAGRAMS 19 PRINTED WIRING BOARD ASSEMBLIES 23 REPLACEMENT PARTS LIST 27 PACKING OF THE SET 33 CONTENTS SPEAKER SIZE 5 x 12 cm 2pcs VOICE COIL IMPEDANCE 16 ohm at 400 Hz ANTENNA INPUT IMPEDANCE VHF UHF 75 ohm Unbalanced TUNING RANGES VHF Channels 2 thru 13 UHF Channels 14 thru 69 CATV Channels 1 thru 125 EIA Channel Plan U S A POWER INPUT AC 110 240 V 50 60 Hz POWER RATING 90W PICTURE S...

Page 3: ...to be certain that the high voltage does not exceed the specified value and that it is regulating correctly 5 Do not use a picture tube other than that specified or make unrecommended circuit modifications to the high voltage circuitry 6 When trouble shooting and taking test measurements on a receiver with excessive high voltage avoid being unnecessarily close to the receiver Do not operate the re...

Page 4: ...s mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electrica...

Page 5: ...ess Mutes sound Press again Restores sound CLOSED CAPTION appears when sound is muted RETURN Front Panel Press On Press again Off SENSOR AREA FOR REMOTE CONTROL ON TIMER indicator CHANNEL UP DOWN Selects next higher channel Selects next lower channel MENU Press Accesses MAIN MENU Press again Exits MAIN MENU VOLUME UP DOWN Increases sound Decreases sound LOCATION OF USER S CONTROL Note The above sh...

Page 6: ... operation of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode o...

Page 7: ... as follows by key input MENU SERVICE MODE 6 AFT processing is disabled during service mode PLL setting data is set to fo data 7 All user data are set to default during service mode FAO and SPEAKER user settings are off and on respectively in service mode Energy Save is off 8 Sleep timer View timer and Off timer are inactivated in Service mode 9 Sound is muting in service mode except at Adjustment...

Page 8: ...27 64 V18 CC POS Micron 0 255 32 V19 Vertical mode 1 Chip V MUTE SERVICE 0 1 2 0 V20 SUB VOL 1 Chip A ATT 0 127 127 V21 H VCO 1 Chip H VCO 0 7 4 M01 MTS ATT MTS ATT 0 15 10 M02 MTS VCO MTS VCO 0 63 32 M03 MTS FILTER MTS FILTER 0 63 28 M04 MTS WIDEBAND MTS WIDEBAND 0 63 27 M05 MTS SPECTRAL MTS SPECTRAL 0 63 32 M06 SUB VOL MTS VOL 0 63 63 ADJUSTMENT METHOD Caution to get into the service mode one of...

Page 9: ... Increase RF AGC 1chip data when AFT input voltage is at max 0 3V point adjustment is completed 6 When adjustment completed OSD display and RF AGC self adjustment status data of EEPROM are updated 7 Intelligent monitor output and IM input mode are recovered PIF VCO 1 When there is PIF VCO self adjustment key input for adjustment item PIF VCO self adjustment is performed 2 VIF DEF 1chip is set to 1...

Page 10: ...I OFFSET 32 32 0 F23 B DRI B OFFSET B DRI OFFSET 32 32 0 F24 V FREE 1chip V FREE 0 1 0 F25 GAMMA 1chip GAMMA 0 3 0 F26 TRAP TV 1chip TRAP FINE 0 3 2 F27 TRAP AV 1chip TRAP FINE 0 3 2 F28 H FREE 1chip H FREE 0 1 0 F29 1W TV 1chip V Window 0 1 0 F30 1W AV 1chip V Window 0 1 0 F31 YLPF 1chip YSW LPF 0 1 1 F32 BS D 1chip BS DISCHARGE 0 3 0 F33 BS C 1chip BS CHARGE 0 3 0 F34 SL TV 1chip S SLICE DOWN 0 ...

Page 11: ...V COL COL TEMP 1 O12 COMPONENT Without COMPONENT With COMPONENT 1 O13 AV Without AV With AV 1 O14 AV2 AV1 system AV2 system 1 O15 MTS Without MTS With MTS 1 O16 TONE CTRL Without S ADJ With S ADJ 1 O17 AUTO OFF Without AUTO OFF With AUTO OFF 1 O18 INIT LANG ENGLISH SPANISH 1 O19 SETUP FLAG NO SETUP AUTO SETUP 1 O20 FR AV Front 3 Rear AV 3 Display FRONT A V INPUTS and REAR A V INPUTS in DEMO mode 2...

Page 12: ...11 MODEL 21ARF45 CHASSIS LAYOUT 21ARF46 ...

Page 13: ...12 MODEL 21ARF46 BLOCK DIAGRAM MAIN Unit 21ARF46 ...

Page 14: ...13 21ARF46 ...

Page 15: ...MODEL 21ARF46 BLOCK DIAGRAM MTS MODULE Unit 21ARF46 14 ...

Page 16: ...15 21ARF46 ...

Page 17: ...16 MODEL 21ARF46 BLOCK DIAGRAM CRT Unit 21ARF46 ...

Page 18: ...tages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measured from point indicated to chassis...

Page 19: ...Vp p Vert Rate 7 6 56 Vp p Horiz Rate 8 6 40 Vp p Horiz Rate 9 4 88 Vp p Horiz Rate 0 158 Vp p Horiz Rate q 1140 Vp p Horiz Rate w 48 Vp p Vert Rate e 3 8 Vp p Vert Rate r 118 Vp p Horiz Rate t 440 Vp p Horiz Rate y 5 04 Vp p Horiz Rate u 5 12 Vp p Vert Rate i 112 8 Vp p Horiz Rate o 94 4 Vp p Horiz Rate p 109 6 Vp p Horiz Rate 21ARF46 ...

Page 20: ...6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit 21ARF46 19 ...

Page 21: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MAIN 1 Unit 21ARF46 20 ...

Page 22: ...17 16 19 18 15 14 13 12 11 10 21 21ARF46 ...

Page 23: ...A B C D E F G H 10 9 8 7 6 5 4 3 2 1 SCHEMATIC DIAGRAM MTS Unit 21ARF46 22 ...

Page 24: ...6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side PRINTED WIRING BOARD ASSEMBLIES 21ARF46 23 ...

Page 25: ... 5 R4 3 7 RJ 1 2 C1 0 0 4 I C1 0 0 3 R5 0 4 C5 1 8 R5 2 8 C5 1 9 R5 2 0 RJ 3 2 RJ 3 1 Q6 0 4 R6 6 2 RJ 3 0 Q8 0 1 R8 0 1 RJ 2 9 C1 8 5 5 C1 0 1 3 C1 0 1 1 C1 0 0 9 R8 1 7 R8 0 7 C8 1 4 R1 0 6 4 R1 0 6 3 Q8 0 4 R8 4 2 R1 0 6 5 C8 2 3 R8 1 5 C1 0 0 8 C8 1 5 R8 1 4 R8 1 6 R8 1 2 R1 0 6 2 C8 1 6 R1 0 6 1 C8 2 6 R8 3 2 C8 1 9 C8 2 1 D1 0 8 6 R8 4 7 C8 2 8 C8 3 0 R8 4 4 C8 3 1 C8 3 3 C8 3 2 R8 4 5 C1 8 ...

Page 26: ...6 5 4 3 2 1 A B C D E F G H PWB B CRT Unit Wiring Side 21ARF46 25 ...

Page 27: ... 2 R3 0 8 4 R3 0 2 8 R3 0 3 5 R3 0 1 9 R3 0 2 7 R3 0 3 0 C3 0 4 2 Q3 0 0 2 Q3 0 0 1 R3 0 1 4 R3 0 2 1 R3 0 2 9 R3 0 1 1 C3 0 4 3 Q3 0 0 4 R3 0 3 4 R3 0 2 6 C3 0 3 6 R3 0 0 7 C3 0 1 3 C3 0 0 8 R3 0 2 5 R3 0 0 8 R3 0 0 5 R3 0 1 2 I C3 0 0 1 R3 0 1 0 C3 0 3 5 C3 0 0 2 R3 0 0 3 R3 0 1 3 RJ 1 0 1 C3 0 3 3 C3 0 2 6 C3 0 2 5 C3 0 2 8 C3 0 3 2 C3 0 3 1 C3 0 2 3 C3 0 2 4 C3 0 2 7 R3 0 0 4 R3 0 0 1 R3 0 0 2...

Page 28: ...1 VS2SC2735 1EY X 2SC2735 AD500430 Q601 VS2SC2235Y 1E X 2SC2235 Y AD500617 U Q602 VSTT2140 F X TT2140LS AD500621 Q603 VS2SC3198 G 1 X 2SC3198 G AD500431 Q604 VS2SD601AR 1Y X 2SD601AR AD500434 Q751 VS2SD468 C 1 X 2SD468ACTZ AD500619 Q752 VS2SD468 C 1 X 2SD468ACTZ AD500619 Q753 VS2SC3198 G 1 X 2SC3198 G AD500431 Q754 VS2SD468 C 1 X 2SD468ACTZ AD500619 Q801 VS2SD601AR 1Y X 2SD601AR AD500434 Q804 VS2S...

Page 29: ... C452 VCE9GA1CW106M X 10 16V EL AD500533 C505 VCEA0A1HW107M X 100 50V EL AD500271 C508 VCFYAA2AA224J X 0 22 100V M Poly AD500555 C511 VCEA0A1VW477M X 470 35V EL AD100136 C512 VCKYPA2HB102K X 1000p 500V Ceramic AD500309 C513 RC EZA332WJZZ X 1000 35V EL AD500493 C515 VCEACA1HC335J X 3 3 50V EL AD500552 C601 VCQYTA1HM563J X 0 056 50V Mylar AD500317 C602 VCEA0A1HW475M X 4 7 50V EL AD500274 C603 VCEA0A...

Page 30: ... VRS CY1JF331JY X 330 1 16W M Ox AD100268 R209 VRS CY1JF392JY X 3 9k 1 16W M Ox AD500404 R216 VRS RG3LB333J X 33k 3 0W M Ox AD500612 R220 VRS CY1JF221JY X 220 1 16W M Ox AD500393 R301 VRS CY1JF102JY X 1k 1 16W M Ox AD500384 R302 VRN RL3DBR10J X 0 10 2W M Film AD500602 R303 VRS CY1JF473JY X 47k 1 16W M Ox AD500406 R304 VRD RA2BE683JY X 68k 1 8W Carbon AD500588 R305 VRS CY1JF274JY X 270k 1 16W M Ox ...

Page 31: ...5 6k 1 16W M Ox AD500408 R1039 VRS CY1JF102JY X 1k 1 16W M Ox AD500384 Ref No Part No Description Toshiba Part No R1040 VRS CY1JF273JY X 27k 1 16W M Ox AD500397 R1041 VRS CY1JF103JY X 10k 1 16W M Ox AD500385 R1042 VRD RA2BE101JY X 100 1 8W Carbon AD500335 R1043 VRS CY1JF104JY X 100k 1 16W M Ox AD500386 R1044 VRS CY1JF101JY X 100 1 16W M Ox AD500383 R1045 VRD RA2BE101JY X 100 1 8W Carbon AD500335 R...

Page 32: ...07 VRS CY1JF332JY X 3 3k 1 16W M Ox AD500400 R3008 VRS CY1JF302JY X 3k 1 16W M Ox AD500399 R3009 VRS CY1JF101JY X 100 1 16W M Ox AD500383 R3010 VRS CY1JF392JY X 3 9k 1 16W M Ox AD500404 R3011 VRS CY1JF102JY X 1k 1 16W M Ox AD500384 R3012 VRS CY1JF102JY X 1k 1 16W M Ox AD500384 R3013 VRS CY1JF102JY X 1k 1 16W M Ox AD500384 MISCELLANEOUS PARTS INTEGRATED CIRCUITS DIODES TRANSISTORS CAPACITORS EL Ele...

Page 33: ...Z0610CEZZ X plug 6Pin AD500489 P3009 QPLGZ0810CEZZ X plug 32 AD500175 U ACC701 QACCZA050WJPZ X AC Cord AD500709 VSP1205PB09WA X speaker AD500620 VSP1205PB09WA X speaker AD500620 LHLDK0014PEZZ X AC Cord holder AD500450 LHLDP1066PE00 X Holder AD500120 LHLDW0102GJKZ X Wire tie AD500121 QCNW A871WJZZ X Wire H 5 pin AD500475 QCNW A872WJZZ X Wire K 4 pin AD500476 QCNW A873WJZZ X Wire speaker AD500477 TC...

Page 34: ...PACKING OF THE SET 21ARF46 33 ...

Page 35: ...21ARF46 34 ...

Page 36: ...pying recording or otherwise without prior written permission of the publisher TOSHIBA AMERICA CONSUMER PRODUCTS INC TOSHIBA DE MEXICO S A DE C V LATIN AMERICA DIVISION HEAD OFFICE 82 TOTOWA ROAD WAYNE NEW JERSEY 07470 TEL 973 628 8000 SIERRA CANDELA NO 111 6 PISO COL LOMAS DE CHAPULTEPEC 11000 MEXICO D F TEL 5 202 26 77 1900 NORTH WEST 84TH AVENUE MIAMI FLORIDA 33126 TEL 305 470 9355 21ARF46 ...

Page 37: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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