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Toshiba 21V13B Service Manual
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Toshiba 21V13B Service Manual

Toshiba 21V13B Service Manual

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FILE NO: 050-200248
TOSHIBA
SERVICE MANUAL
COLOUR TELEVISION
21V13B
PRINTED IN UK. 2003 C

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Summary of Contents for Toshiba 21V13B

  • Page 1 FILE NO: 050-200248 TOSHIBA SERVICE MANUAL COLOUR TELEVISION 21V13B PRINTED IN UK. 2003 C...

  • 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

    CONTENTS SERVICING NOTICES ON CHECKING ...................... A1-1 HOW TO ORDER PARTS ........................... A1-1 IMPORTANT ..............................A1-1 CONTENTS ..............................A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-5 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 21 inch / 660.0mmV System CRT Type FLAT Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System Speaker 2 Speaker Position Front Size 2.0 x4.7 Inch Impedance Sound Output 5.0+5.0 W 10%(Typical) 4.0+4.0 W DDR SECAM NTSC3.58(AV)+NTSC4.43 PAL60Hz...
  • Page 5 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Character Picture Contrast Brightness Colour Tint (NTSC Only) Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off CH Tuning Manual Auto CH Allocation Language Clock Set On Timer Set Off Timer Set Pin Code Registration Panel Lock Nicam Auto Off...
  • Page 6 GENERAL SPECIFICATIONS G-10 Remote Unit RC-EY Control Glow in Dark Remocon Format Custom Code 40-BF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power Volume Up / + Volume Down / - Previous Select Picture Menu...
  • Page 7 GENERAL SPECIFICATIONS G-12 Accessories Owner's Manual Language English w/Guarantee Card Remote Control Unit Rod Antenna Poles Pole Terminal type Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Yes (Owner's Manual In) Dew/AHC Caution Sheet...
  • Page 8 GENERAL SPECIFICATIONS G-16 Carton Master Carton Content ---- Sets Material Dimensions W x D x H(mm) x -- x -- Description of Origin Gift Box Material Double/Brown Dimensions W x D x H(mm) x 575 x 549 Design As per Buyer's Description of Origin Natural Dropping At 1 Corner / 3 Drop Test...

  • 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 REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a 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- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • 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 2 seconds. Remocon Key Operations Set Key Reset the user setting items (PICTURE, VOLUME, LANGUAGE and NICAM AUTO/ VOL.

  • Page 13: When Replacing Eeprom( Memory) Ic

    WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. Note: No need setting for the position of the mark @ due to the adjustment value. CD CF Table 1 Enter DATA SET mode by setting VOLUME to minimum.

  • Page 14: 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 Connect the digital voltmeter to TP501. Set condition is AV MODE without signal.
  • Page 15 ELECTRICAL ADJUSTMENTS 2-6: FOCUS 2-9: BRIGHT CENT Receive an 80dB monoscope pattern. Receive the PAL black pattern*. (RF Input) Turn the Focus Volume fully counterclockwise once. Using the remote control, set the brightness and Adjust the Focus Volume until picture is distinct. contrast to normal position.
  • Page 16 ELECTRICAL ADJUSTMENTS 2-12: TINT Receive the PAL color bar pattern. (Audio Video Input) Using the remote control, set the brightness and contrast to normal position. Connect the oscilloscope to TP803. Activate the adjustment mode display of Fig. 1-1 and press the channel button (20) on the remote control to select "TINT".
  • Page 17 ELECTRICAL ADJUSTMENTS 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. minutes before performing the following adjustments.
  • Page 18 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB TP803 J801 TP801 CP801 CD803 J701 CP803A FB401 CP401 TP501 R521 AC IN CP802A CD501 CP501 VR502 L503 SPEAKER CP1001 CP502 MAIN PCB...

  • Page 19: Block Diagram

    BLOCK DIAGRAM VOL UP TU001 MAIN W/T.TEXT VOL DOWN IC101 OECF004A Q102 SCL SDA CH UP LED DRIVE ON_TIMER Q103 KEY_IN CH DOWN LED DRIVE STANDBY LED ON TIMER P.CON+5V D103 STAND BY/P.ON SDA 19 CHROMA D101 AVDD1 V-DRIVE IC201 STV2248C SCL 20 IC401 TDA8714A AVDD2...

  • Page 20: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) STEREO (INSERTED PARTS) SOLDER SIDE SOLDER SIDE D604 R445 CP101 VR420 VR401 W008 R713 W087 L905 D402 C901 J701 D410 L711 Q702 C402 L710 R417 R712 W057 R418 Q701 C405 W006 R416 W005 C920 R410 C446 W853...

  • Page 21: Main/Crt/Stereo

    PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) STEREO (CHIP MOUNTED PARTS) SOLDER SIDE SOLDER SIDE C938 C759 R132 C917 Q703 R728 R137 Q704 Q103 Q102 R738 R739 C915 C923 R104 R101 R102 C924 R103 C912 R107 C910 C941 C909 C141 C908 C109 C108 C105...
  • Page 22 NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED MICON/TUNER SCHEMATIC DIAGRAM RESET WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST IC102_1 TU001 TUWRF4EK-778F2 R3111N311A/C LED DRIVE WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NOMAL. ON TIMER Q102 (MAIN PCB) D103 2SA1037AK OS101...
  • Page 23 IF/CHROMA SCHEMATIC DIAGRAM (MAIN PCB) SIF BUFFER Q204 2SC2412K R206 VIF PRE.AMP L206 C204 Q201 L204 VIDEO BUFFER CF202 KTC3881S-RTK Q202 0.27uH 0.001 B TSF5372P 15uH R217 2SC2412K GNDOUTOUT CF201 TPSRA6M00B00-A0 FROM/TO 21PIN/AV SW C212 0.01 B TUNER_V_OUT L202 SCART_V_OUT2 3700005 SCART_V_IN1 R640...
  • Page 24 21PIN/AV SW SCHEMATIC DIAGRAM (MAIN PCB) L713 10uH 0305 R712 C718 VIDEO OUT 75 1/4W C723 BUFFER R719 Q701 KTA1266 VIDEO_SW IC702 NJM2234L SCART_C_IN W853 VIDEO IN Vin1 Vin2 Vin3 V.OUT GND C728 KANP C743 R733 FOR VCR L701 R702 L IN 22uH 8.2K...
  • Page 25 DEFLECTION/CRT SCHEMATIC DIAGRAM (CRT PCB) (MAIN PCB) C629 CP802A B2013H02-5P CP802B B2013H02-5P 0.001 B FROM/TO IF/CHROMA R614 R602 CUT OFF CUT OFF G.OUT G.OUT G.OUT R.OUT R.OUT R.OUT B.OUT B.OUT B.OUT VAMP CP803A B2013H02-4P CP803B B2013H02-4P V-DRIVE IC401 TDA8174A V_OUT R819 ABCL HEATER...

  • Page 26: Power

    POWER SCHEMATIC DIAGRAM (MAIN PCB) D526 30DF6-FC R543 ICP502 0.39 3W 20P_3000 R521 D520 W847 D506 30DF6-FC 0.56 3W 1SS133 C517_1 +B.ADJ 11.5 R524 PROTECTOR TEST 680P TP501 RELAY SW Q505 47K 1/4W C503 TP502 TP503 KTC3203_Y 100V EMERGENCY FROM/TO DEFLECTION/CRT Q509 2SA1624 H.DRV+B...
  • Page 27 SOUND AMP SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO 21PIN/AV SW CP901A IMSA-9130B-10 SCART_A_IN1_R SCART A IN1 R SCART_A_IN1_L SCART A IN1 L SCART_A_IN2_R SCART A IN2 R SCART_A_IN2_L SCART A IN2 L FRONT AUDIO R FRONT_V_IN FRONT AUDIO L SCART_A_OUT1_L SCART A OUT1 L SCART_A_OUT1_R SCART A OUT1 R SCART_A_OUT2_L...
  • Page 28 STEREO SCHEMATIC DTAGRAM (STEREO PCB) L905 10uH 0305 C905 R909 100P CH C906 R910 100P CH CP902 IMSA-9130S-10L S101 B901 P.CON+5V P.CON+5V B902 W4BRH3.5X6X1 P.CON+8V P.CON+8V W4BRH3.5X6X1 STEREO_RESET STEREO RESET FROM/TO SAUND AMP DACM_R D_CTR_I/O_2 SOUND_L SOUND L SOUND_R 80 STANDBYQ SOUND R DACM_L 25 DACA_L...
  • Page 29 WAVEFORMS MICON/TUNER IF/CHUROMA 50µs 20µs 0.5µs 1.00V 100mV 0.50V 10ms 50µs 20µs 1.00V 100mV 1.00V 20µs 50µs 20µs 1.00V 0.50V 1.00V 0.2ms 20µs 20µs 1.00V 1.00V 1.00V 50µs 0.2ms 20µs 100mV 1.00V 100mV NOTH: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 30 WAVEFORMS DEFRECTION/CRT 20µs 20µs 10ms 1.00V 1.00V 1.00V 10ms 20µs 10ms 100mV 1.00V 10.0V 20µs 20µs 10ms 1.00V 10.0V 200mV 21PIN/AV SW 20µs 20µs 20µs 1.00V 10.0V 1.00V 20µs 20µs 20µs 1.00V 1.00V 5.0V NOTH: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 31: Sound Amp

    WAVEFORMS 2µs 0.2ms 200V 0.50V 0.50V 20µs 0.2ms 0.2ms 5.0V 0.50V 20µs 0.2ms 0.2ms 5.0V 100mV STEREO 0.2ms 20µs 0.2ms 0.50V 100mV SOUND AMP 0.2ms 0.2ms 0.50V 0.50V 200mV NOTH: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 32 WAVEFORMS 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV 0.2ms 200mV NOTH: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 33: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW PCB110 (CRT PCB) PCB290 (STEREO PCB) PCB010 (MAIN PCB)

  • Page 34: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION A3K602V720 CABINET,FRONT ASSY 752WSAA006 PLATE,SHIELD 752WSAA008 SHIELD,CASE 752WSAA013 SHIELD,LID 752WSA0086 SHIELD,IC 752WSA0087 SHIELD,IC 701WPJ1115 CABINET,FRONT 709WPA0024 CABINET HOLDER 711WPA0166 PLATE,FRONT 713WPA0197 GUIDE,REMOCON 7235490022 BADGE,BRAND 735WPA0654 BUTTON,BASE 735WPB0200 BUTTON,FRAME 735WPB0201 BUTTON,POWER 743WKA0040 SPRING,BUTTON 899EFBA002 WIRING-CLIP 702UPA0223 CABINET,BACK 7225490073...

  • Page 35: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS RESISTORS R003 R801R7271J 270 OHM 1/10W R420 R801R7103J 10K OHM 1/10W R004 R801R7271J 270 OHM 1/10W R421 R002T2393J 39K OHM 1/2W R005 R801R7823J 82K OHM 1/10W R422 R002T4224J 220K OHM 1/4W...
  • Page 36 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS RESISTORS R639 R801R7392J 3.9K OHM 1/10W R1001 R002T4472J 4.7K OHM 1/4W R640 R801R7151J 150 OHM 1/10W R1003 R801R7102J OHM 1/10W R641 R801R7102J OHM 1/10W R1009 R801R7102J OHM 1/10W R642...
  • Page 37 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION CAPACITORS CAPACITORS C422 P235W1474J 0.47 UF 100V MKT C726 CS0RCH4Q2J 470 PF 50V CH C437 P447F2394J CMPP 0.39 UF 200V FHS C727 CS0RCH4Q2J 470 PF 50V CH C439 C0JTSL5K1J PF 500V SL...
  • Page 38 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION DIODES TRANSISTORS D402 D97U03001B DIODE,ZENER MTZJ30B T-77 Q510 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK D403 D2WT011E10 DIODE,SILICON 11E1-EIC Q511 TAAT01281Y TRANSISTOR,SILICON KTA1281_Y D404 D2WT011E10 DIODE,SILICON 11E1-EIC Q512 TPAAB05001 COMPOUND TRANSISTOR KRA102SRTK D405...
  • Page 39 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION RESISTOR SWITCHES RC....CARBON RESISTOR SW106 0504201T31 SWITCH,TACT SKHVBED010 SW107 0504201T31 SWITCH,TACT SKHVBED010 CAPACITORS ! SW501 0530205016 SWITCH SDKVA30100 CC....CERAMIC CAPACITOR VARIABLE RESISTORS CE....ALUMI ELECTROLYTIC CAPACITOR VR401 V1K6213BT8 VOLUME,SEMI FIXED NVG6THTB102 CP....
  • Page 40 TOSHIBA Information Systems (UK) Ltd Consumer Products Division, European Service Centre, Admiralty Way, Camberley, Surrey. GU15 3DT...

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