Related Manuals for Toshiba 21VZ3E
Summary of Contents for Toshiba 21VZ3E
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Page 1: Colour Television
FILE NO. 060-200217 SERVICE MANUAL COLOUR TELEVISION S2ES Chassis 21VZ3E , 21VZ3M 21VZ3MJ Nov., 2002... -
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 ..............................12 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................13 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 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 CONVERGENCE ADJUSTMENTS CIRCUMFERENCE CONVERGENCE ADJUSTMENT 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.) CENTER CONVERGENCE ADJUSTMENT 3.
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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 13) 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...
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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)
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Page 12: 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 13: Chapter 2 Specific Informations
CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 21" HIGH VOLTAGE AT ZERO BEAM: 29.1 kV MAX HIGH VOLTAGE: 31.3 kV AC VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data Data ←... -
Page 14: Location Of Controls
LOCATION OF CONTROLS Front VIDEO AUDIO MENU Video input teminal Main power on/off Audio input teminal Channel select Headphone jack Volume down/up Remote sensor TV/VIDEO select Power indicator Menu open Remote CALL On-screen on/off Power ON/standby TXT/TV Sound mute Direct select -/–... -
Page 15: Programming Channel Memory
PROGRAMMING CHANNEL MEMORY • For easy Channel selection, the chosen Position should have the same number as Channel stored there. For this operation, you may use the “SEARCH” and “SKIP” functions. Example : Presetting Channel 12 to Position 12 Channel Preset Manual Search and Changing the assigned position Auto search memory (ASM) - Page 16 • Under some reception conditions, fine tuning may be necessary to improve the picture quality. In such cases, adjust the manual fine tuning (MFT). • If the signal frequency is unstable due to environmental conditions, use auto fine tuning. Skip Function Auto fine tuning (AFT) If you set “SKIP ON”...
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Page 17: 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 : 21VZ3E/21VZ3M/21VZ3MJ Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors .... - Page 18 24366123 CARBON FILM, 1/6W 12K OHM J C633 24591823 PLASTIC FILM, 50V 0.082UF J R105 24366121 CARBON FILM, 1/6W 120 OHM J (21VZ3E) C634 24591563 PLASTIC FILM, 50V 0.056MF J R105 24366121 CARBON FILM, 1/6W 120 OHM J * C801 24503002 PLASTIC FILM, AC275V 0.22UF M...
- Page 19 Location Location Parts No. Description Parts No. Description R156 24553153 OXIDE METAL FILM, 1W 15K OHM J R483 24552820 OXIDE METAL FILM, 1/2W 82 OHM J R156 24553153 OXIDE METAL FILM, 1W 15K OHM J R491 24366103 CARBON FILM, 1/6W 10K OHM J R158 24366331 CARBON FILM, 1/6W 330 OHM J...
- Page 20 Q301 23009352 IC, VERTICAL AN5522 MATSUSHITA AN5522 L101 23248229 COIL, CHOKE, TLN3040AC Q301B 70391355 SCREW, BIND HEAD TAP-TITE B, L103 23238558 COIL, PEAKING, TRF4R47AJ (21VZ3E) BITTB 3X8 SZN L103 23238558 COIL, PEAKING, TRF4R47AJ Q370 23314962 TRANSISTOR, KTA1266 Y (21VZ3M/21VZ3MJ) Q402...
- Page 21 JACK, HEAD PHONE, 3.5MM * P801 D301 23118094 DIODE, EU2A 23372159 POWER CORD, CEE 250V 2.5A SILV 201 D302 23118094 DIODE, EU2A (21VZ3E) D303 23316794 DIODE, SC570A * P801 23372160 POWER CORD, SSA 127V15A 250V6A D306 23357341 DIODE, 1SS133 CMC-02 (21VZ3M/21VZ3MJ)
- Page 22 FILTER, TRAP 4.5MHZ, TCF1138AM Z130 23303199 SAW FILTER, OFWK6269K PC BOARD ASSEMBLIES U901 23788049 CRT/D BOARD, PD0906 U902 23788050 SIGNAL BOARD, PD0907 (21VZ3E) U902 23788277 SIGNAL BOARD, PD1026 (21VZ3M/21VZ3MJ) U903 23788051 POW/DEF BOARD, PD0909 PICTURE TUBE * V901 23312954 PICTURE TUBE, A51LVV896X, 21FFG02...
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Page 23: Pc Boards Bottom View
SIGNAL BOARD PD0907 (21VZ3E) SIGNAL BOARD PD1026 (21VZ3M/21VZ3MJ) BOTTOM (FOIL) SIDE PD0907 G103 G103 RT29 RT28 RT18 GJ30 GJ30 M501 M501 MCL-437F RA42 RA42 Q101 Q101 RA57 RA57 CT21 CT21 CT20 CT20 RA43 RA43 R102 R102 RA76 RA76 24 23... - Page 24 POW/DEF BOARD PD0909 BOTTOM (FOIL) SIDE – 25 – – 26 –...
- Page 25 CRT-D BOARD PD0906 BOTTOM (FOIL) SIDE – 27 –...
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Page 26: Terminal View Of Transistors
TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752 2SA1788 2SC752GTM (old) 2SD1763A 2SC2482 2SA562TM 2SC5243 2SC1569 2SC2655 2SA1015 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 ON4409 RN2203 2SD1554 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 RN1204 2SD2553 RN2204 RN1205 RN1202 RN1201 –... -
Page 27: Schematic Diagram
SCHEMATIC DIAGRAM MODEL : 21VZ3E / 21VZ3M / 21VZ3MJ 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 28 – 30 –...
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Page 29: Specifications
SPECIFICATIONS Rated voltage AC 110 V – 240 V, 50/60 Hz Power consumption 109 W (at AC 220 V, 50 Hz) Width 654.0 mm × Height 459.5 mm × Depth 475.7 mm Dimensions Mass 24.0 kg Picture tube TYPE 21 (549.1 mm) Overall picture tube measured diagonally (505.5 mm) Viewable picture tube measured diagonally 90°... -
Page 30: Circuit Block Diagram
TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...