Related Manuals for Toshiba 27AFX54
Summary of Contents for Toshiba 27AFX54
- Page 1 FILE NO. 050-200407 SERVICE MANUAL COLOR TELEVISION 27AFX54 DOCUMENT CREATED IN JAPN, April, 2004...
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Page 2: Servicing Notices On Checking
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
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
GENERAL SPECIFICATIONS CRT Size / Visual Size 27 inch / 676.6mmV System CRT Type Flat Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2 Speaker Position Front Side Size 1.8 x 3.9 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 Reset Sound Bass Treble Balance BBE On/Off Stable Sound On/Off Surround On/Off Set Up Closed Caption PIP Source TV/CATV Auto CH Memory Add/ Delete Mode Color Temperature Picture Preference Option...
- Page 6 GENERAL SPECIFICATIONS G-10 Remote Unit RC-GR Control Glow in Dark Remocon Back Light Remocon Format Toshiba Custom Code TV:40-BFh Power Source Voltage(D.C) UM size x pcs UM-3 x 2 pcs Total Keys Keys Keys Power 100 /+10 CH Up CH 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 Vertical Contour Correction Auto CH Memory...
- 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 S Input...
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Page 9: Disassembly Instructions
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: Removal And Installation Of Flat Package Ic
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 When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin-tip Take care of the polarity of new IC and then install the new 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.
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Page 12: Service Mode List
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
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: E/W CORNER Receive the crosshatch signal from the Pattern Generator. Receive the monoscope pattern. Using the remote control, set the brightness and contrast Set the screen mode to 4:3. Using the remote control, set the brightness and contrast to to normal position.
- Page 15 ELECTRICAL ADJUSTMENTS Method (2) 2-16: TINT/COLOR CENT Receive the color bar pattern. Set the multi-sound signal generator L-ch=1KHz, R-ch Connect the oscilloscope to TP806. =Non input and receive the RF. Activate the adjustment mode display of Fig. 1-1 and Connect the oscilloscope to the Audio Out Jack (R-ch). press the channel button (24) on the remote control to Press the AUDIO SELECT button on the remote control select "TINT".
- Page 16 ELECTRICAL ADJUSTMENTS 2-17: CONTRAST MAX MANUAL Activate the adjustment mode display of Fig. 1-1 and press the channel button (18) on the remote control to select “CONT. MAX”. Press the VOL. UP/DOWN button on the remote control until the contrast step No. becomes “64”. Receive a broadcast and check if the picture is normal.
- Page 17 ELECTRICAL ADJUSTMENTS 3. PURITY AND CONVERGENCE 3-3: STATIC 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 18 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 J701 J708 J704 J703 FB401 CP401 TP003 VR401 W003 COMB PCB VR502 CP851A CD1001...
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Page 19: Block Diagram
BLOCK DIAGRAM MICON IC 3D-COMB IC IC101 OEC7092A IC1503 Q1503, Q1505 TC90A65FG Q1507, Q1514 OS101 KEY 1 CH DOWN BUFFER 94 Cout REMOCON VOL_DOWN Yout BUFFER A/V SW IC POWER Q1504, Q1506 CHROMA IC IC701 Q1508, Q1515 X.IN IC601 AN15853B-E1 Q1513 KEY 2 CH UP... -
Page 20: Printed Circuit Boards Main
PRINTED CIRCUIT BOARDS MAIN (INSERTED PARTS) SOLDER SIDE CP801A J704 C427 CP101 J702 J701 C410 B401 D411 D405 J703 J708 L403 D608 D704 C711 D416 W079 W004 C419 W103 R459_2 C421 W161 W080 W085 L702 C425 D702 W086 FB401 W210 W091 R439 CP401... - Page 21 PRINTED CIRCUIT BOARDS MAIN (CHIP MOUNTED PARTS) SOLDER SIDE R121 R101 R150 R907 R435 R431 R425 R419 R127 R440 R409 R423 IC199_1 Q101 Q605 Q103 R622 IC902 R134 R624 R115 IC302 R136 R641 R130 R114 Q603 R906 IC101 R133 Q902 R916 R132 Q901...
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Page 22: Crt/Vm Coil/Comb
PRINTED CIRCUIT BOARDS COMB (TOP SIDE) CRT/VM COIL SOLDER SIDE SOLDER SIDE D809 TP806 W804 D807 Q1506 R808 R1506 Q810 Q1508 Q1504 C1540 TP804 C1549 R1512 R801 C1552 R1518 D805 R1514 R1509 R804 R1515 R1505 Q1503 D804 Q1507 C1537 R809 IC1503 Q1505 R812... -
Page 23: Micon
MICON SCHEMATIC DIAGRAM (MAIN PCB) OS101 RPM7138-WH5 Vout CP101 173979-7 I2C_SCL I2C_SDA I2C_OFF R101 R103 R106 AUDIO L AUDIO R 2.7K H_CTL FROM/TO TUNER/STEREO Q101 KTC3875S_Y_RTK C141 J_AUDIO_OUT_R J_AUDIO_OUT_L 0.001 MICON IC TO SOUND IC101 OEC7092A TV_MUTE H_CTL R150 AUDIO MUTE CLAMP SW R118 Q103... -
Page 24: Chroma
CHROMA SCHEMATIC DIAGRAM (MAIN PCB) FROM AV V_IN[YUV] R616 U_IN[YUV] Y_IN[YUV] 150 1/2W AT 5V REG C_V_OUT_SW Q607 Y_V_OUT_SW KTC3203_Y TO REGULATOR R617 P.CON+5V R603 FSC_OUT AT+5V 330 1/2W R602 FROM/TO MICON P.CON 5V REG Q606 15 3W KTC3209_Y P.CON+5V R644 AT+5V C641... - Page 25 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO DY V.OUTPUT IC V801 IC401 LA78041 CP401 A68QCU770X66L B06B-DVS THERMAL PROTECTION L402 PUMP UP ELH5L4132N 25.0 12.0 25.0 R407 R439 1.2K TO CRT 1K 1W BUFFER C425 CD803 (CP803) Q409 CP83035A KTA1266 BUFFER 0.001 R414 R417 Q408...
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Page 26: Power
POWER SCHEMATIC DIAGRAM (MAIN PCB) D529 C516 1SS133 500V 0.0033 D517 10.9 TO SOUND R515 R517_1 1SS133 D505 RELAY DRIVE 10K 1/4W SOUND+B Q504 30DF6-FC 0.22 3W KTC3198 D516 1SS133 P.CON+9V SOUND_GND R537 R504 D532 RY501 ALKS321 3.9K 1/4W 1SS133 +B SW. -
Page 27: Sound
SOUND SCHEMATIC DIAGRAM (MAIN PCB) FROM TUNER/STEREO R302 AUDIO_OUT_L 2.7K 1/4W R301 AUDIO_OUT_R 2.7K 1/4W C309 0.039 L IN VD L ONT R305 C323 R307 C325 0.0033 0.033 Tone Volume SURR 2.2K Balance Control Control /MUTE R313 MODE control R IN Vref R OUT R306... -
Page 28: Tuner/Stereo
TUNER/STEREO SCHEMATIC DIAGRAM (MAIN PCB) TU001 115-V-K015AR_B FROM CHROMA P.CON+5V W809 TUNER+5V P.CON+8V[B] FROM POWER P.CON+B FROM/TO MICON J_AUDIO_OUT_L J_AUDIO_OUT_R C901 BUFFER Q901 KTA1504S_Y_RTK C902 BUFFER Q902 KTA1504S_Y_RTK L901 22uH 0305 TO SOUND AUDIO_OUT_L AUDIO_OUT_R OUT SW IIC Decoder St.PLL Pilot Input Cancel... - Page 29 AV SCHEMATIC DIAGRAM (MAIN PCB) YUV_IN(REAR) J704 MSP-213V1-652_NI TO CHROMA V_IN[YUV] U_IN[YUV] Y_IN[YUV] C_V_OUT_SW Y_V_OUT_SW A/V_OUT(REAR) J708 MSP-213V2-432_NI FROM TUNER/STEREO C711 R708 J_AUDIO_OUT_R C707 R704 J_AUDIO_OUT_L EXT_AUDIO_L C728 MUTE R721 EXT_AUDIO_R Q711 TUNER_VIDEO R703 R711 KTC3875S_Y_RTK MUTE 2.2K Q712 R710 KTC3875S_Y_RTK L702 47uH 0305...
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Page 30: Regulator
REGULATOR SCHEMATIC DIAGRAM (MAIN PCB) 2.5V REG Q519 KTC3209_Y 3.3V REG Q516 KTC3209_Y VOLT CURRENT CONTROL IC501 BA10358F-E2 12.3 VOLTAGE CTL R538 Q517 VOLTAGE CTL KTC3875S_Y_RTK Q518 R529 R550 KTC3875S_Y_RTK 8.2K R528 FROM POWER P.CON+9V UNREG+5V FROM/TO COMB/FILTER CP151 (CP1501) IMSA-6035B-12Z002 P.CON+2.5V FROM AV... -
Page 31: Crt/Svm
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 R801 1/2W W820 KTC3199_Y... -
Page 32: Comb/Filter
COMB/FILTER SCHEMATIC DIAGRAM (COMB PCB) C1553 L1504 0.01 B C1556 C1558 22uH 0305 C1562 C1506 BUFFER 0.01 B 0.01 B 0.01 B Q1511 C1535 10P CH KTA1504S_Y_RTK BUFFER C1509 BUFFER L1501 R1508 Q1513 4.9 4.9 0.01 Q1510 KTC3875S_Y_RTK 15uH 0305 KTC3875S_Y_RTK C1536 FROM/TO REGULATOR... -
Page 33: Waveforms
WAVEFORMS MICON SOUND 50Ns 1.0V 500mV 50ns 1.0V 500mV 20µs 1.0V 100mV 20µs 1.0V 100mV DEFLECTION 20µs 200V 1.0V 2.0V NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. - Page 34 WAVEFORMS 10µs 2.0V 20µs 200mV 20µs 200mV CRT/SVM 10µs 10µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
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Page 35: Mechanical Exploded Views
MECHANICAL EXPLODED VIEW PCB110 (CRT PCB ASS'Y) PCB060 (VM COIL PCB ASS'Y) PCB330 (COMB PCB ASS'Y) PCB010 (MAIN PCB ASS'Y) 101B 101A... - Page 36 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 131, 132, 133, TM101...
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Page 37: Mechanical Replacement Parts List
MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE003298 A3N116F720K CABINET,FRONT ASSY 101A AE003299 701APJA134 CABINET,FRONT 101B AE003015 712APBA005 DOOR AE003300 A3N116F740K CABINET,BACK ASSY AE003301 722549A323 SHEET,RATING AE001146 7235490040 FILM,DECORATION AD301425 7240001120 SHEET,CSA AE003019 769WSA0017 WASHER CRT T=1 AD300759 741WUA0021 SPRING,EARTH... -
Page 38: Electrical Replacement Parts List
ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS ! R410 AD300783 R3X181221J R,METAL OXIDE 220 OHM 1W ! R416 BZ210053 R002T22R2J 2.2 OHM 1/2W ! R420 AD301345 R002T22R7J 2.7 OHM 1/2W ! R426 AE000913 R4X5T6682F R,METAL 6.8K OHM 1/6W R434 AD301972... - Page 39 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D109 BZ410054 0021721150 SLR-342VCT32 D111 BZ410021 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 D401 AD300670 D97U01501B DIODE,ZENER MTZJ15B T-77 D402 BZ410043 D2WT011E10 DIODE,SILICON 11E1-EIC D403 BZ410019 D97U03001B DIODE,ZENER MTZJ30B T-77 D404 BZ410020 D97U05R11B DIODE,ZENER...
- Page 40 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D806 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D807 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D808 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D809 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D852 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D853 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 D854...
- Page 41 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS ! Q812 AD301032 TCATC3199Y TRANSISTOR,SILICON KTC3199_Y-AT Q852 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) Q853 AD300024 TCUT00752Y TRANSISTOR,SILICON 2SC752(G)(TM)_Y Q854 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) Q855 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) Q856 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
- Page 42 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description VARIABLE RESISTORS VR401 BZ210108 V116313BTC VOLUME,SEMI FIXED EVNCYAA03B13 VR502 BZ210101 V1163H4BTC VOLUME,SEMI FIXED EVNCYAA03BE4 P.C.BOARD ASSEMBLIES PCB010 AE003312 A3N116F010K PCB ASS'Y TMC566B PCB060 AE003313 A3N116F060K PCB ASS'Y TEAA93B PCB110 AE003314 A3N116F110K PCB ASS'Y...
- Page 43 ELECTRICAL REPLACEMENT PARTS LIST RESISTOR RC....CARBON RESISTOR CAPACITORS CC....CERAMIC CAPACITOR CE....ALUMI ELECTROLYTIC CAPACITOR CP....POLYESTER CAPACITOR CPP....POLYPROPYLENE CAPACITOR CPL....PLASTIC CAPACITOR CMP....METAL POLYESTER CAPACITOR CMPL....METAL PLASTIC CAPACITOR CMPP....METAL POLYPROPYLENE CAPACITOR J2-6...
- Page 44 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...