Toshiba 21CJ1R Service Manual

Color television
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FILE NO. 060-200454
SERVICE MANUAL
Color Television
21CJ1R
21J1E
21J1ES
21J1H
21J1M
21J1MJ
21J1T
Sep. 2004 (YC/X)

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Summary of Contents for Toshiba 21CJ1R

  • Page 1 FILE NO. 060-200454 SERVICE MANUAL Color Television 21CJ1R 21J1E 21J1ES 21J1H 21J1M 21J1MJ 21J1T Sep. 2004 (YC/X)
  • 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 ■ 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.) ■...
  • 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...
  • Page 9: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 2) While pressing o (or CALL) button on 1) Select the Service mode. 3) Press MENU button on TV. 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. • 3. Select RCUT, GCUT and BCUT with CHANNEL s, t buttons, to set individual CUTOFF ADJUSTMENT (RCUT) values to Initial reference data, and to set GDRV and BDRV to Initial reference...
  • 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: 27.8 kV MAX HIGH VOLTAGE: 29 kV AC VOLTAGE 110 - 240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data...
  • Page 14: Location Of Controls

    LOCATION OF CONTROLS(Representative: 21J1E) Front b c a Remote Names of Parts TV Set Remote Controller Power on/standby Main power on/off Direct select Infrared CHs/t Channel up/down, sensor Item select Power ; –/+ Volume up/down, indicator t c s Channel Menu select, Level adjust 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 Manual Search and Changing the Channel Prese assigned position Use this function when:...
  • 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”...
  • 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 : 21CJ1R/21J1E/21J1ES/21J1H/21J1M/21J1MJ/21J1T Capacitors ..... CD : Ceramic Disk PF : Plastic Film EL : Electrolytic Resistors ....
  • Page 18 Location Parts No. Description Location Parts No. Description C305 24617915 ELECTROLYTIC, 50V 1UF K 3A LI C879 24206479 ELECTROLYTIC, 50V 4.7UF M 7L 3A C306 24763102 ELECTROLYTIC, 16V 1000UF M C880 24100103 CERAMIC CHIP, 50V F 0.01UF Z C307 24693473 PLASTIC FILM, 100V 0.047UF J C884 24640018 ELECTROLYTIC, 160V 220UF C308...
  • Page 19 Location Parts No. Description Location Parts No. Description R107 #1 24011330 CHIP, 1/20W 33 OHM J R131 24011221 CHIP, METAL FILM, 1/20W 220 OHM J #2 24011330 CHIP, 1/20W 33 OHM J R132 #1 24011271 CHIP, 1/20W 270 OHM J R108 #1 24011272 CHIP, 1/20W 2.7K OHM J #2 24011271 CHIP, 1/20W 270 OHM J...
  • Page 20 Location Parts No. Description Location Parts No. Description R412 24366560 CARBON FILM, 1/6W 56 OHM J R974 24011102 CHIP, METAL FILM, 1/20W 1K OHM J R416 24019323 OXIDE METAL FILM, 5W 1.8K OHM J R977 24011681 CHIP, METAL FILM, 1/20W 680 OHM J R421 24011391 CHIP, 1/20W 390 OHM J RA01...
  • Page 21 Location Parts No. Description Location Parts No. Description #6 24011472 CHIP, 1/20W 4.7K OHM J JR007 24000445 CHIP JUMPER, 1608TYPE #7 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J JR008 24000576 JUMPER CHIP, 3216TYPE GJ02 #2 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J JR009 24000824 CHIP JUMPER, 2125TYPE #3 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J...
  • Page 22 Location Parts No. Description Location Parts No. Description GL893 #1 23103249 FERRITE BEAD CORE, TEM2011AO, 3.5X4.5 #2 23205006 TRANSISTOR, KTC4075Y GL896 #1 23248234 COIL, CHOKE, TLN3481AC #3 23205006 TRANSISTOR, KTC4075Y GL897 #1 23248234 COIL, CHOKE, TLN3481AC #4 23205006 TRANSISTOR, KTC4075Y Z103 #1 23303271 FILTER, TRAP 4.5MHZ, TCF1138AM #5 23205006 TRANSISTOR, KTC4075Y...
  • Page 23 Location Parts No. Description Location Parts No. Description P802 23368249 POWER CORD, 2P 11.88MM VH-JST A702B 23946820 PACKING, BOTTOM P910 23164725 CONNECTOR, PLUG 2P K902 23306459 REMOCON HAND UNIT, CT-90119 PV01 23023198 JACK, 4P (NO SW) DAV4-31B01110S01 Y101A #1 23566444 OWNERS MANUAL, EN/RU PV02 23023219 JACK, PIN JACK 2P(2SW) #2 23566440 OWNERS MANUAL, ENG...
  • Page 24 MEMO – 24 –...
  • Page 25: Pc Boards Bottom View

    MAIN BOARD PD1917-1 (21J1E) (U902A) MAIN BOARD PD1917A-1 (21J1ES) (U902A) MAIN BOARD PD1917B-1 (21J1H) (U902A) MAIN BOARD PD1917C-1 (21J1T) (U902A) MAIN BOARD PD1917D-1 (21J1M/21J1MJ) (U902A) BOTTOM (FOIL) SIDE L104 L105 P494 Q112 Q101 QB60 Q108 Q111 C138 BT01 B102 RT28 C179 C179 H001...
  • Page 26 MAIN BOARD PD1918-1 (21CJ1R) (U902A) BOTTOM (FOIL) SIDE L104 L105 P494 Q101 Q112 QB60 Q108 Q111 BT01 B102 C138 RT28 C179 H001 C179 R107 LV01 R111 R111 JR007 RA75 R158 GJ101 RA75 C170 C170 Q116 QB61 R158 RA76 RT27 R112...
  • Page 27 Q908 TP-47B C912 R904 G943 R905 Q905 R904 R937 R937 JR001 C907 JR001 D906 E C B R928 CRT-D BOARD PD1918-2 (21CJ1R) (U902B) BOTTOM (FOIL) SIDE MCL-437F Q901 Q903 R914 D904 TP-47G R914 G905 R925 R921 R917 R921 G904 G904...
  • Page 28: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 2SD1763A (old) 2SC2482 2SA562TM 2SC5243 2SC1569 2SC2655 2SA1015 2SC4544 2SC1815 2SC4721P 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 2SD1554 ON4409 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 2SD2553 RN1204 RN2204 RN1205 RN1202 RN1201 - 30 -...
  • Page 29: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 21CJ1R/21J1E/21J1ES/21J1H/21J1M/21J1MJ/21J1T 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 30 - 32 -...
  • Page 31: Specifications

    SPECIFICATIONS 21CJ1R 21J1E 21J1ES 21J1H 21J1M 21J1MJ 21J1T MODEL Rated voltage ~ 110 - 240V 50/60Hz Power consumption (at ~ 220V 50Hz) Dimensions 494.9(W) X 473.6(D) X 473.0(H) mm (Width x Depth x Height) 20 kg Mass Picture Tube Type 21 (533.4mm) Overall picture tube measured diagonally...

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