Related Manuals for Toshiba 27A14
Summary of Contents for Toshiba 27A14
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Page 1: Service Manual
FILE NO. 050-200413 SERVICE MANUAL COLOR TELEVISION 27A14 DOCUMENT CREATED IN JAPAN, April, 2004... -
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 / 676mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2Speaker Position Front Size 2.0 x 3.5 Inch Impedance Sound Output 2.5 + 2.5 W 10%(Typical) 2.0 + 2.0 W NTSC3.58+4.43 /PAL60Hz... - Page 5 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Icon Picture Contrast Brightness Color Tint Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off Surround On/Off Set Up TV/CABLE(CATV) CH Program Add/Erase Option Language V-chip CH Label Favorite CH Lock On/Off Timer Color Stream DVD/DTV Control Level...
- Page 6 GENERAL SPECIFICATIONS G-10 Remote Unit RC-GQ 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 3 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 Audio Input RCA x 2 Other Terminal...
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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 Using the remote control, set the brightness and contrast •... - 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 2-15: TINT/COLOR CENT 2-17: SEPARATION 1, 2 Receive the color bar pattern. Please do the method (1) or method (2) adjustment. Connect the oscilloscope to TP024. Method (1) Activate the adjustment mode display of Fig. 1-1 and press the channel button (24) on the remote control to Set the multi-sound signal generator for each different select "TINT".
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Page 16: Purity And Convergence
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 CP806 TP024 R805 R803 TP022 J801 CP803 CP802B CP801B CD801 CD802 CP801A CP101 FB401 CP401 VR401 TP003 W003 VR502 AC IN SPEAKER CP802A CP502 L503 CP501 CP1001 J705 J706 J707 MAIN PCB...
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Page 18: Block Diagrams
BLOCK DIAGRAM TU001 SPEAKER MICON SP1001 10 13 12 IC101 OEC7090A MEMORY IC IC199 S-24C16AFJA-TB-01 30 SCL1 SDA1 S_IN S INPUT YUV IN SOUND AMP IC IC1001 CHROMA IC AN17808B IC601 M61283FP R70T 27 26 44 48 19 14 V OUT AUDIO IN3 SOUND DECORDER IC IC902... -
Page 19: Printed Circuit Boards Main/Crt
PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE CP801A C413_1 CD801A C426 C427 J702 J701 D411 W827 CP101 D407 J703 J704 J708 D701 D405 W006 D704 W861 D705 D608 W134 W062 C421_1 D702 R459_2 W061 W060 W132 C442 W131 W819 R710 W058 C425... - Page 20 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE Q101 R109 IC199_1 R724 R101 C719 C128 C720 R112 R113 R907 C312 C303 C102 C104 IC302 IC902 C115 C911 C301 R136 IC101 R906 C917 R125 R128 Q902 R137 R150 C106 Q901 C913 R131 C805_1...
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Page 21: Micon
MICON SCHEMATIC DIAGRAM ACCESSORY (MAIN PCB) BT001 R03(AB)E_2P_G OS101 TM101 RPM7138-WH5 BT002 RC-GQ010 R03(AB)E_2P_G Vout CP101 LED SW Q101 R109 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 22: Deflection
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 330 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 23 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO DY V.OUTPUT IC IC401 LA78041 V801 CP401 THERMAL PROTECTION M68LWF088X B06B-DVS PUMP UP L402 ELH5L4132N 25.0 12.0 25.0 R407 1.2K R439 1K 1W TO CRT/SVM C425 CD803_1 (CP805) 0.001 CU823001 BUFFER R414 R417 Q409 FB401_2 FJN27A003_M KTA1266 8.2K +-1%...
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Page 24: Power
POWER SCHEMATIC DIAGRAM (MAIN PCB) D516 RELAY DRIVE Q504 10.9 1SS133 KTC3198 R515 10K 1/4W RY501 ALKS321 TO SOUND R517_1 D505 W806 SOUND+B 30DF6-FC 0.39 3W R541_1 DEGAUSS COIL R501 L503 P.CON+12V CP502 8R270010 1 7W 0.22 1W A1561WV2-2P SOUND_GND D517 CP507 COIL,LINE FILTER... -
Page 25: Sound
SOUND SCHEMATIC DIAGRAM (MAIN PCB) FROM TUNER/STEREO R302 SW_AUDIO_L R301 2.7K 1/4W SW_AUDIO_R W832 2.7K 1/4W C309 0.039 L IN L ONT Tone Volume 2.2K SURR Balance Control Control /MUTE MODE control R IN Vref R OUT R303 100 1/4W FROM CHROMA R304 L301... -
Page 26: Tuner/Stereo
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 27 AV SCHEMATIC DIAGRAM (MAIN PCB) YUV_IN(REAR) FROM/TO CHROMA J704 MSP-213V1-652_NI V_IN[YUV] U_IN[YUV] Y_IN[YUV] VIDEO_OUT VIDEO_IN2 A/V_OUT(REAR) VIDEO_IN1 J708 MSP-213V2-432_NI VIDEO_IN3 C711 R708 C707 R704 R702 C728 R721 220 1/4W MUTE Q711 R703 R711 KTC3875S_Y_RTK 2.2K MUTE C710 BUFFER Q712 R710 Q709 KANP KTC3875S_Y_RTK...
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Page 28: Crt
CRT SCHEMATIC DIAGRAM (CRT PCB) CRT BLOCK (W/O SVM) FROM DEFLECTION FROM DEFLECTION CP806_1 SCREEN CP801B B2013H02-5P W802 180V HEATER FOCUS R802 FROM CHROMA 2.7K 1/4W R803 RED/GREEN OUT CP802B B2013H02-7P Q804 RED/GREEN OUT CLAMP 12K 2W KTC4217 Q801 100.6 123.0 R812 KTC3199_Y... -
Page 29: Comb/Filter
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 C1519 FROM MICON IC1502 MM1501XNRE Vin1 Y/C_SW V.OUT Vin2 VIDEO SW(C) IC IC1503 MM1501XNRE FROM/TO CHROMA... -
Page 30: Waveforms
WAVEFORMS MICON 0.5V 10ms/div 13 1V 20µs/div 1 1V 0.1µs/div 9 1V 50µs/div 14 2V 20µs/div 2 1V 1µs/div 10 2V 20µs/div 3 1V 50µs/div 15 2V 20µs/div DEFLECTION 4 1V 0.1ms/div 11 0.5V 20µs/div 16 2V 5ms/div CHROMA 12 1V 2µs/div 7 1V 20µs/div 17 20V 5ms/div NOTE:... - Page 31 WAVEFORMS 38 50V 20µs/div 25 2V 5ms/div 18 10V 10ms/div 39 50V 20µs/div 26 5V 2ms/div 19 20V 20µs/div SOUND 27 5V 2ms/div 20 2V 20µs/div 22 2V 5ms/div 28 200mV 20µs/div 23 2V 5ms/div 21 200V 50µs/div 37 50V 20µs/div 29 200mV 20µs/div 24 2V 5ms/div NOTE:...
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Page 32: Mechanical Exploded Views
MECHANICAL EXPLODED VIEW 102B 102B 102A PCB110 (CRT PCB ASS'Y) 102B PCB010 101E (MAIN PCB ASS'Y) 101D 101E 101C 101E 101B 101A... - Page 33 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 118, 119, 120, TM101...
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Page 34: Mechanical Replacement Parts List
MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description AE004156 A3N431N720 CABINET,FRONT ASSY 101A AE004157 701WPJC695 CABINET,FRONT 101B AD302098 713WPA0265 GLASS,LED 101C AD302096 713WPA0273 GUIDE,REMOCON 101D AE004158 735WPBB124 BUTTON ASS'Y 101E AE003071 800WQ0A041 FELT SHEET AE004159 A3N431N740 CABINET,BACK ASSY 102A AE003352 702WPAA463... -
Page 35: Electrical Replacement Parts List
ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS ! R409 AD301003 R801R7102J OHM 1/10W ! R410 AD302107 R3X18A470J R,METAL OXIDE OHM 2W R419 AD300784 R3X1811R2J R,METAL OXIDE 1.2 OHM 1W ! R426 BZ210030 R4X5T4472F R,METAL 4.7K OHM 1/4W ! R429 AE000145 R002T2561J... - Page 36 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES 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 DIODE,SILICON AU02A-EIC D414 BZ410043 D2WT011E10 DIODE,SILICON...
- Page 37 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS Q409 BZ510073 TAATA12660 TRANSISTOR,SILICON KTA1266-AT(Y,GR) Q410 BZ510110 TC30041590 TRANSISTOR,SILICON 2SC4159(D,E) Q411 BZ510109 TCAA3875SY TRANSISTOR,SILICON KTC3875S_Y_RTK Q502 BZ510098 T220033260 2SK3326(2) Q503 BZ510005 TA3T1371A0 TRANSISTOR,SILICON 2SA1371(D,E)-AE Q504 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) Q505 BZ510011...
- Page 38 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description VARIABLE RESISTORS VR401 BZ210218 V1K63H3BTE VOLUME,SEMI FIXED NVG6TLTAB222 VR502 BZ210101 V1163H4BTC VOLUME,SEMI FIXED EVNCYAA03BE4 P.C.BOARD ASSEMBLIES PCB010 AE004155 A3N431N010 PCB ASS'Y TMC559D PCB110 AE003346 A3N425N110 PCB ASS'Y TCC421D MISCELLANEOUS B403 BZ310129 024HT03564...
- Page 39 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...