Toshiba 21AZ5VX Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. TV
  5. 21AZ5VX
  6. Service manual
Toshiba 21AZ5VX Service Manual

Toshiba 21AZ5VX Service Manual

Toshiba s0es chassis colour television service manual
Hide thumbs
Table of Contents

Advertisement

Quick Links

FILE NO. 040-200217
SERVICE MANUAL

COLOUR TELEVISION

S0ES Chassis
21AZ5VX
Dec., 2003

Advertisement

Table of Contents
loading

Related Manuals for Toshiba 21AZ5VX

Summary of Contents for Toshiba 21AZ5VX

  • Page 1: Colour Television

    FILE NO. 040-200217 SERVICE MANUAL COLOUR TELEVISION S0ES Chassis 21AZ5VX Dec., 2003...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 SET-UP ADJUSTMENT ............................4 SERVICE MODE ..............................6 DESIGN MODE ................................ 9 ELECTRICAL ADJUSTMENTS ..........................10 CIRCUIT CHECK ..............................15 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................16 LOCATION OF CONTROLS ...........................

  • Page 3: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazard- 2. The only source of X-RAY RADIATION in this TV receiver ous X-RAY RADIATION.

  • Page 4: Set-Up Adjustment

    WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. SET-UP ADJUSTMENT I The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 5 I CIRCUMFERENCE CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENTS NOTE: Before attempting any convergence adjustments, the 1. Loosen the clamping screw of deflection yoke slightly to receiver should be operated for at least fifteen min- allow the yoke to tilt. utes. 2. Temporarily put a wedge as shown in figure 1. (Do not remove cover paper on adhesive part of the wedge.) I CENTER CONVERGENCE ADJUSTMENT 3.

  • Page 6: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press o button once on 2) Press o button again to 3) While pressing the o button, Remote Control. keep pressing. press MENU button on TV set. Item Data (Service mode display) 2.
  • Page 7 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 16) 5.
  • Page 8 8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. Indicated color of mode now selected : Green and Red Indicated color of other modes : White...

  • Page 9: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 3) Press MENU button on TV. 1) Select the Service mode. 2) While pressing o (or CALL) button on Remote and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0”...

  • Page 10: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS ITEM ADJUSTMENT PROCEDURE FOCUS VR ADJ 1. Enter the service mode, then select any register item. 2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap- pears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen.
  • Page 11 ITEM ADJUSTMENT PROCEDURE WHITE BALANCE 1. Set Contrast to 40, and brightness to +20 by picture control. ADJUSTMENT 2. Set the TV in service mode, and get the inside W/B adjusting signal with VIDEO button. • CUTOFF ADJUSTMENT 3. Select RCUT, GCUT and BCUT with CHANNEL s, t buttons, to set individual (RCUT) values to Initial reference data, and to set GDRV and BDRV to Initial reference (GCUT)
  • Page 12 S0ES: Series (Reference factory adjustment) 1 SUB COLOUR CONTRAST (SCNT) (Measuring point) Q501 #20 (R-OUT) (Adjusting signal) Sub Bright (NTSC) signal (Adjusting method) 1) Set user control to the standard 1. 2) Change to adjust SCNT data. * It make the point which doesn't have a change and it adjust with screen VR SPEC: 2.5±0.2Vp-p 2 SUB BRIGHT (BRTC) (Adjusting signal)
  • Page 13 5 SUB COLOUR NTSC (COLC) (Measuring point) Q501 #22 (B-OUT) (Adjusting signal) Sub Bright (NTSC) signal (Adjusting method) 1) Set BUS data of Q501 to the same value as that SUB TINT adjustment. 2) Set user control to the standard 1. 3) Change COLC data to adjust the 6th peak amplitude of rainbow color bar Value Adjust the amplitude of color bar (p-p value of the...
  • Page 14 8 SECAM BELL FILTER ADJUSTMENT (Measuring point) (Adjusting signal) NO ADJUSTMENT (Adjusting method) 9 SECAM R-Y ADJUSTMENT (Measuring point) Q501 #20 R-Y OUT (Adjusting signal) Colour bar (SECAM) signal (Adjusting method) Adjust (SRY) the level of the monochrome signal part must be a match to the level of horizontal blanking signal.

  • Page 15: Circuit Check

    CIRCUIT CHECK HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps below. 1. Connect an accurate high voltage meter to the second anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current). 3.

  • Page 16: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 21" HIGH VOLTAGE AT ZERO BEAM: 30.2 kV MAX HIGH VOLTAGE: 32.0 kV AV VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data Data ←...

  • Page 17: Location Of Controls

    LOCATION OF CONTROLS Front Power Switch Head Phone Jack Infrared Receiving Channel Up Window Channel Down Volume Up Power Indicator Video Input (2) Volume Down TV/Video Audio Input (2) MENU Remote o Sound Mute CALL (On-screen call) CALL f Power on/standby ;...

  • Page 18: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY • First, use the ASM (Automatic Search Memory) function to preset all the active channels in your area automatically. Then, arrange the preset channels with the SEARCH (>>>), MFT (Manual Fine Tuning) and AFT (Auto Fine Tuning) functions so that you can tune into only desired channels.
  • Page 19 • Use the SEARCH function if desired channels could not be preset with the ASM, or if you would like to preset the desired channels to specific position numbers one by one. • The adjustments below are not necessary under normal conditions. However, in areas of inferior broadcast conditions where adjustment is necessary for a better picutre, adjust the tuning with the MFT (Manual Fine Tuning).

  • Page 20: Chassis And Cabinet Replacement Parts List

    • The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Model : 21AZ5VX Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 21 Location Location Parts No. Description Parts No. Description C522 24538104 PLASTIC FILM, 50V 0.1UF J C885 24214471 CERAMIC DISC, 500V B 470PF K C523 24538104 PLASTIC FILM, 50V 0.1UF J C887 24214471 CERAMIC DISC, 500V B 470PF K C524 24794101 ELECTROLYTIC, 16V 100UF M C889 24668222...
  • Page 22 Location Location Parts No. Description Parts No. Description CS12 24797010 ELECTROLYTIC, 50V 1UF M R308 24366471 CARBON FILM, 1/6W 470 OHM J CS13 24797010 ELECTROLYTIC, 50V 1UF M R312 24552272 OXIDE METAL FILM, 1/2W 2.7K OHM J CS15 24232103 CERAMIC DISC, 50V F 0.01UF Z R314 24366105 CARBON FILM, 1/6W 1M OHM J...
  • Page 23 Location Location Parts No. Description Parts No. Description R489 24366104 CARBON FILM, 1/6W 100K OHM J R824 24569689 CERAMIC COVERED, 10W 6.8 OHM J R499 24366224 CARBON FILM, 1/6W 220K OHM J R827 24366472 CARBON FILM, 1/6W 4.7K OHM J R501 24366561 CARBON FILM, 1/6W 560 OHM J...
  • Page 24 Location Location Parts No. Description Parts No. Description RA32 24366101 CARBON FILM, 1/6W 100 OHM J RN33 24366332 CARBON FILM, 1/6W 3.3K OHM J RA33 24366103 CARBON FILM, 1/6W 10K OHM J RN34 24366332 CARBON FILM, 1/6W 3.3K OHM J RA34 24366103 CARBON FILM, 1/6W 10K OHM J...
  • Page 25 Location Location Parts No. Description Parts No. Description L705 23103894 FILTER, FERRITE BEAD, TEM2011AW Q706 23314965 TRANSISTOR, KTC3198 Y L811 23103894 FILTER, FERRITE BEAD, TEM2011AW Q707 23114437 TRANSISTOR, 2SC752GTM-Y L883 23221747 COIL, CHOKE, TRF9253D Q709 23314965 TRANSISTOR, KTC3198 Y L885 23248073 COIL, CHOKE, TLN3299D Q710...
  • Page 26 Location Location Parts No. Description Parts No. Description D461 23118338 DIODE, RU4AM LF-K2 F802A 23165433 FUSE HOLDER, 5.2 SOC D463 23357341 DIODE, 1SS133 G101 23248229 COIL, CHOKE, TLN3040AC D467 23118094 DIODE, EU2A G117 24232103 CERAMIC DISC, 50V F 0.01UF Z D477 23357341 DIODE, 1SS133...
  • Page 27 TUNER, ECA33LX1, ASIA MLT IICPLL D-J MATU ACCESSORIES K902 23306191 REMOCON HAND UNIT, CT-9879 AT03 23588016 REMOCON PART, BATTERY COVER, CT-9858 Y101A 23565631 OWNER’S MANUAL, VIET, 21AZ5VX Y102 23565427 OWNERS MANUAL, SAFETY INSTRUCTION, 20A3VX Y120 23943846 BAG, POLY Y125 23142083 ADAPTOR...
  • Page 28 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 28 –...

  • Page 29: Pc Boards Bottom View

    SIGNAL BOARD PB0675 BOTTOM (FOIL) SIDE Q609 GC04 M805B C683 G101 C103 C105 D101 C106 C678 CC14 C691 C661 C662 C690 C673 H002 TEXT R688 C676 R665 R668 Q608 M602A D616 PT01A H001 D617 C663 C664 CC19 C677 R119 C190 CC18 R667 C652...
  • Page 30 POWER/DEF BOARD PB0676 BOTTOM (FOIL) SIDE P496 C210 R430 MCL-437F P495 BB12B BB11B KB01 DB01 Q462 Q340 RB12 RB11 R327 CB20 L461 D463 R343 TP82 R308 GJ35 RB02 C465 R344 QB02 D301 QB01 Q840 C306 C311 RB09 R466 TP81 Q460 D478 G894 D319...
  • Page 31 CRT-D BOARD PB9658 BOTTOM (FOIL) SIDE C721 R740 R702 R731 R742 L704 R717 R741 R720 R734 R723 C716 R732 R737 C714 R713 R743 C720 R724 – 33 –...
  • Page 32 D-COM BOARD PB9661 BOTTOM (FOIL) SIDE CZ17 CZ13 CZ14 CZ21 LZ04 CZ03 QZ01 CZ11 RZ05 QZ03 GZ01 CZ12 CZ06 CZ05 RZ09 QZ04 QZ02 PZ01 RZ03 MCL-437F RZ07 RZ08 – 34 –...

  • Page 33: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 ON4409 RN2203 2SD1554 RN2201 2SD2253 2SD1556 RN2004 RN1203 2SC5143 RN1204 2SD2553 RN2204 RN1205 RN1202 RN1201 –...
  • Page 34 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 36 –...

  • Page 35: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 21AZ5VX WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
  • Page 36 – 38 –...

  • Page 37: Specifications

    SPECIFICATIONS Rated voltage AC 110 V – 240 V, 50/60 Hz Power consumption 125 W (Approx.) (at AC 230 V, 50 Hz) Width 654 mm × Height 462 mm × Depth 471 mm Dimensions Mass 26 kg Picture tube TYPE 21 (54 cm) Overall picture tube measured diagonally (51 cm) Viewable picture tube measured diagonally 90°...

  • Page 38: Circuit Block Diagram

    TOSHIBA CORPORATION...

Table of Contents