hit counter script
Download
Share
Print this page
Toshiba 24AF44 Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. TV
  5. 24AF44
  6. Service manual
Toshiba 24AF44 Service Manual

Toshiba 24AF44 Service Manual

Hide thumbs Also See for 24AF44:

Advertisement

Quick Links

Download this manual
FILE NO. 050-200402
SERVICE MANUAL
COLOR TELEVISION
24AF44
DOCUMENT CREATED IN JAPAN, Feb., 2004

Advertisement

loading

Related Manuals for Toshiba 24AF44

Summary of Contents for Toshiba 24AF44

  • Page 1 FILE NO. 050-200402 SERVICE MANUAL COLOR TELEVISION 24AF44 DOCUMENT CREATED IN JAPAN, Feb., 2004...
  • Page 2 SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.
  • Page 3 TABLE OF CONTENTS SERVICING NOTICES ON CHECKING ..................A1-1 A1-1 HOW TO ORDER PARTS ......................IMPORTANT ..........................A1-1 TABLE OF CONTENTS ......................A2-1 A3-1~A3-5 GENERAL SPECIFICATIONS ....................DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ....................B1-1 2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ..........B2-1, B2-2 SERVICE MODE LIST ........................
  • Page 4 GENERAL SPECIFICATIONS CRT Size / Visual Size 24 inch / 600mmV System CRT Type Flat Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2 Speaker Position Front Side Size 2 x 4.7 Inch Impedance Sound Output 5.0+5.0 W 10%(Typical) 4.0+4.0 W NTSC3.58+4.43 /PAL60Hz...
  • Page 5 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Icon Picture Contrast Brightness Color Tint Sharpness Sound Bass Treble Balance BBE On/Off Stable Sound On/Off Surround On/Off Set Up TV/CATV Auto CH Memory Add/ Delete Option Language CH Label Favorite CH V-Chip Lock On/Off Timer...
  • Page 6 GENERAL SPECIFICATIONS G-10 Remote Unit RC-GW Control Glow in Dark Remocon Format Toshiba Custom Code TV:40-BF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power CH Up CH Down Volume Up Volume Down...
  • Page 7 Features Auto Degauss Auto Shut Off Canal+ CATV Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip Type USA,Toshiba Type Auto Search CH Allocation Just Clock Function CH Label VM Circuit Full OSD Premiere Comb Filter Lines Auto CH Memory Hotel Lock...
  • Page 8 GENERAL SPECIFICATIONS G-13 Interface Switch Front Power System Select Main Power SW Sub Power Channel Up Channel Down Volume Up Volume Down Rear AC/DC TV/CATV Selector Degauss Main Power SW Indicator Power Yes(RED) Stand-by On Timer Terminals Front Video Input = VIDEO3 Audio Input = VIDEO3 RCA x 2 Other Terminal...
  • Page 9 DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.
  • Page 10 DISASSEMBLY INSTRUCTIONS When IC starts moving back and forth easily after REMOVAL AND INSTALLATION OF desoldering completely, pickup the corner of the IC using a FLAT PACKAGE IC tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 11 DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the new tip Soldering Iron. (Refer to Fig. 2-8.) IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
  • Page 12 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 1 second. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.
  • Page 13 ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Read and perform these adjustments when repairing the 2-1: CONSTANT VOLTAGE circuits or replacing electrical parts or PCB assemblies. Place the set with Aging Test for more than 5 minutes. CAUTION Set condition is AV MODE without signal. •...
  • Page 14 ELECTRICAL ADJUSTMENTS 2-6: HORIZONTAL SIZE 2-11: PARABOLA Receive the monoscope pattern. Receive the crosshatch signal from the Pattern Generator. Using the remote control, set the brightness and contrast Using the remote control, set the brightness and contrast to normal position. to normal position.
  • Page 15 ELECTRICAL ADJUSTMENTS 2-14: BRIGHT CENT Receive the monoscope pattern. (RF Input) 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 (16) on the remote control to select "BRI CENT".
  • Page 16 ELECTRICAL ADJUSTMENTS 3-3: STATIC CONVERGENCE 3. PURITY AND CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
  • Page 17 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB CP804 CP803 CD852 CP852 J801 CP852B VM COIL PCB CP802B CP801B CP851B CD801 CD851 CD802 CP801A J702 CP101 J708 J704 J703 J701 FB401 CP401 TP003 VR401 W003 VR502 CP851A CP802A CD1001...
  • Page 18 BLOCK DIAGRAM A/V OUT J708 COMB FILTER IC Q855 ~ Q859 Q852, Q583 Q854 CHROMA IC IC1501 LA76605M-TLM IC601 M61283FP R70T BUFFER BUFFER VM COIL C OUT Q610 Q613 FB401 VIDEO LINE OUT SVM OFF Y IN DELAYDE Y OUT Y OUT J801 Q603, Q614, Q605...
  • Page 19 PRINTED CIRCUIT BOARDS MAIN (INSERTED PARTS) SOLDER SIDE C427 J704 CP101 B401 CP801A C426 J701 D411 J702 J703 D701 J708 C413_1 D407 D704 D405 W861 W006 D705 C419 D608 D702 R459_2 W134 W062 C421 W061 W060 W132 W131 R710 W058 W819 W057 C425...
  • Page 20 PRINTED CIRCUIT BOARDS MAIN (INSERTED PARTS) SOLDER SIDE Q101 R109 IC199_1 R724 R101 C719 C128 C720 R112 R113 R907 C312 C303 C102 C104 IC302 IC902 C115_1 C911 C301 R136 IC101 C323 R906 C917 R125 R128 Q902 IC301 R137 R150 C106 Q901 C913 R131...
  • Page 21 PRINTED CIRCUIT BOARDS CRT/VM COIL SOLDER SIDE TP806 D809 W804 D807 R808 Q810 TP804 D805 W808 C813 R804 D804 R812 R809 TP805 R806 D808 R820 W807 Q812 W007 Q853 Q811 C805 R819 R814 Q852 Q854 R859 C857 W806 C853 C854 D855 R872 R877...
  • Page 22 MICON SCHEMATIC DIAGRAM ACCESSORY (MAIN PCB) BT001 R03(AB)E_2P_G OS101 TM101 RPM7138-WH5 BT002 R25-1943 R03(AB)E_2P_G Vout LED SW Q101 R109 CP101 173979-7 KTC3875S_Y_RTK I2C_SCL I2C_SDA R101 I2C_OFF R103 R106 AUDIO L AUDIO R 2.7K R130 R150 CLAMP SW Q103 47K 1/4W KTC3875S_Y_RTK FROM/TO CHROMA MICON IC...
  • Page 23 CHROMA SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO AV VIDEO_IN2 V_IN[YUV] R616 VIDEO_IN1 120 1/2W AT+5V REG U_IN[YUV] R617 Q607 Y_IN[YUV] KTC3203_Y VIDEO_IN3 VIDEO_OUT R603 P.CON+5V 270 1/2W FROM/TO COMB FILTER FROM/TO MICON C_V_OUT_SW P.CON+5V PROTECT Y_V_OUT_SW P.CON+5V REG C641 VIDEO_OUT Q606 C IN(Y/C) Y SW OUT SW_Y_OUT...
  • Page 24 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO DY V.OUTPUT IC IC401 LA78041 CP401 V801 B06B-DVS THERMAL PROTECTION A60LVY196X11(O) PUMP UP L402_1 25.0 12.0 25.0 R407 ELH5L4132N 1.2K R439 1K 1W TO CRT/SVM C425 CD803 (CP805) 0.001 CP83035A BUFFER R414 R417 Q409 KTA1266 27K +-1% BUFFER...
  • Page 25 POWER SCHEMATIC DIAGRAM (MAIN PCB) D516 RELAY DRIVE Q504 10.9 1SS133 KTC3198 R515 10K 1/4W C516 RY501 500V 0.001 ALKS321 TO SOUND R517_1 D505 W806 SOUND+B 30DF6-FC 1 3W DEGAUSS COIL R501 R541_1 L503 P.CON+12V CP502 8R250009 1 7W 0.22 1W A1561WV2-2P SOUND_GND D517...
  • Page 26 SOUND SCHEMATIC DIAGRAM (MAIN PCB) FROM TUNER/STEREO R302 SW_AUDIO_L R301 2.7K 1/4W SW_AUDIO_R 2.7K 1/4W C309 0.039 L IN L ONT R305 C323 R307 C325 0.0033 0.033 Tone Volume 2.2K SURR Balance Control R313 Control /MUTE 1K 1/4W MODE control R IN Vref R OUT...
  • Page 27 TUNER/STEREO SCHEMATIC DIAGRAM (MAIN PCB) TU001 115-V-K015AR_B FROM/TO CHROMA TUNER+5V NC NC TUNER_VIDEO W812 P.CON+8V[B] P.CON+5V FROM POWER R001 P.CON+B 68K 1/2W R002 68K 1/2W TO MICON FROM/TO MICON J_AUDIO_OUT_L C901 BUFFER Q901 KTA1504S_Y_RTK J_AUDIO_OUT_R C902 BUFFER Q902 KTA1504S_Y_RTK TO SOUND L901 SW_AUDIO_L 100uH 0305...
  • Page 28 AV SCHEMATIC DIAGRAM (MAIN PCB) YUV_IN(REAR) J704 FROM/TO CHROMA MSP-213V1-652_PBSN V_IN[YUV] U_IN[YUV] Y_IN[YUV] VIDEO_OUT VIDEO_IN2 A/V_OUT(REAR) VIDEO_IN1 J708 MSP-213V2-432_PBSN VIDEO_IN3 C711 R708 C707 R704 R702 C728 R721 220 1/4W MUTE R703 Q711 R711 KTC3875S_Y_RTK 2.2K C710 MUTE BUFFER Q712 R710 Q709 KANP KTC3875S_Y_RTK...
  • Page 29 COMB/FILTER SCHEMATIC DIAGRAM (MAIN PCB) L1511 15uH 0305 BUFFER Q1508 KTC3875S_Y_RTK C1535 L1505 FROM AV 15uH 0305 S_VIDEO_IN[C] S_VIDEO_IN[Y] R1512 BUFFER Q1503 C1513 KTC3875S_Y_RTK 0.1 B VIDEO SW(Y) IC FROM MICON C1519 IC1502 MM1501XNRE Vin1 Y/C_SW V.OUT Vin2 VIDEO SW(C) IC FROM/TO CHROMA IC1503 MM1501XNRE...
  • Page 30 CRT/SVM SCHEMATIC DIAGRAM (CRT PCB) TP804 PCB110 CRT BLOCK TCA391 R828 RED AMP Q801 123.5 2.7K 1/4W D804 D805 D806 R813 KTC4217 1SS133 1SS133 1SS133 220 1/4W D801 FROM CHROMA 1SS133 CP802B (CP802A) R855 A2001WV2-7P RED AMP Q810 P.CON+8V W808 330 1/2W W820 KTC3199_Y...
  • Page 31 WAVEFORMS MICON SOUND 100µs 50mV 5µs 200mV 20µs 50µs 100mV 50µs 20µs 100mV DEFLECTION 20µs 200mV 200V NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 32 WAVEFORMS 20µs 20µs 200mV 20µs 200mV CRT/SVM 20µs 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon numZber in the schematic diagram.
  • Page 33 MECHANICAL EXPLODED VIEW 102B 102C 102A 102B PCB110 (CRT PCB ASS'Y) PCB060 (VM COIL PCB ASS'Y) PCB010 (MAIN PCB ASS'Y) 101K 101H 101I 101K 101G 101J 101I 101K 101D 101B 101F 101E 101C 101A...
  • Page 34 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 122, 123, 124, 125, TM101...
  • Page 35 MECHANICAL REPLACEMENT PARTS LIST (FOR USA) Location No. TSB P/N Reference No. Description AE003064 A3M6060720 CABINET,FRONT ASSY 101A AE003065 701WPJC572 CABINET,FRONT 101B AD302143 711WPA0182 PLATE,FRONT 101C AE003066 712WPBA089 DOOR 101D AD302145 713WPA0261 GLASS,LED 101E AD302146 723549A012 AV LABEL 101F AD302008 7235490036 BADGE,BRAND 101G...
  • Page 36 MECHANICAL REPLACEMENT PARTS LIST (FOR CANADA) Location No. TSB P/N Reference No. Description AE003064 A3M6060720 CABINET,FRONT ASSY 101A AE003065 701WPJC572 CABINET,FRONT 101B AD302143 711WPA0182 PLATE,FRONT 101C AE003066 712WPBA089 DOOR 101D AD302145 713WPA0261 GLASS,LED 101E AD302146 723549A012 AV LABEL 101F AD302008 7235490036 BADGE,BRAND 101G...
  • Page 37 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS ! R410 AD302107 R3X18A470J R,METAL OXIDE OHM 2W R419 AE000415 R3X1811R5J R,METAL OXIDE 1.5 OHM 1W ! R426 BZ210030 R4X5T4472F R,METAL 4.7K OHM 1/4W R434 AD301972 R5X2CF5R6J R,CEMENT 5.6 OHM 10W ! R436 BZ210023...
  • Page 38 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES ! D406 BZ410021 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 D407 BZ410063 D2WTAU02A0 DIODE,SILICON AU02A-EIC D408 AD302110 D2CF0715L0 DIODE,SILICON ERD07-15L50 D409 AD301980 D2CF2016L0 DIODE,SILICON FE201-6L49 D410 BZ410019 D97U03001B DIODE,ZENER MTZJ30B T-77 ! D411 BZ410063 D2WTAU02A0...
  • Page 39 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC701 AD301988 I0UF015010 MM1501XNRE IC702 AD301988 I0UF015010 MM1501XNRE IC902 AD300059 I01FF58290 AN5829S ! IC1001 AE003081 I0FSP7808B AN17808B IC1501 AE003002 I03FE76605 LA76605M-TLM IC1502 AD301988 I0UF015010 MM1501XNRE IC1503 AD301988 I0UF015010 MM1501XNRE TRANSISTORS Q101 BZ510109...
  • Page 40 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L901 BZ310041 02167F101J COIL 100 UH L1501 BZ310041 02167F101J COIL 100 UH L1502 AD301417 02167F221J COIL 220 UH L1503 AD301417 02167F221J COIL 220 UH L1505 AD300613 02167F150J COIL L1508 BZ310041...
  • Page 41 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS EL002 BZ614043 124116281A EYE LET XRY16X28BD ! F501 AD301046 081PC6R305 FUSE 51MS063L ! FB401 AE003085 043224007F TRANSFORMER,FLYBACK FSU24A001_M FH501 AE002634 06710T0009 HOLDER,FUSE EYF-52BCY FH502 AE002634 06710T0009 HOLDER,FUSE EYF-52BCY OS101 AD301048 0773071001...
  • Page 42 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...