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Toshiba 21CSZ7DR Service Manual

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SERVICE MANUAL
Color Television
21CSZ7DR
21SZ7DE
21SZ7SH
21SZ7ST
21SZ7VX
FILE NO. 060-200340
S3ES Chassis
Feb. 2004 (YC/X)

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Summary of Contents for Toshiba 21CSZ7DR

  • Page 1 FILE NO. 060-200340 SERVICE MANUAL Color Television S3ES Chassis 21CSZ7DR 21SZ7DE 21SZ7SH 21SZ7ST 21SZ7VX Feb. 2004 (YC/X)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 SET-UP ADJUSTMENT ............................4 SERVICE MODE ..............................8 DESIGN MODE ..............................11 ELECTRICAL ADJUSTMENTS ..........................12 CIRCUIT CHECK ..............................14 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................15 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.
  • Page 6 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF SERVICE MANUAL. SET-UP ADJUSTMENT (FOR FLAT TUBE) 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 7 (5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at the initial position) Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets. Xv bow-shaped deviation of convergence red/blue blue...

  • Page 8: 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 9 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 15) 5.
  • Page 10 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 11: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 2) While pressing (or CALL) button on 3) Press MENU button on TV. 1) Select the Service mode. Remote and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA10 is initialized, items “OPT0”...

  • Page 12: 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 13 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 14: 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 15: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 21" HIGH VOLTAGE AT ZERO BEAM: 29.7 kV MAX HIGH VOLTAGE: 32.0 kV AC VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data RCUT R CUTOFF H...

  • Page 16: Location Of Controls

    LOCATION OF CONTROLS (Representative: 21CSZ7DR) Front AUDIO t c s VIDEO L/MONO MENU Remote NAMES OF PARTS TV Set Remote Control Power on/standby Main power on/off Direct select " 3 CH s/t Infrared sensor Channel up/down. Item select Power indicator 4 ;...

  • Page 17: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY • First, use the ASM (Automatic Search Memory) function to preset all active channels in your area automatically. Then, arrange the preset channels with the SEARCH, SKIP and MFT (Manual Fine Tuning) functions so that you can tune into only desired channels. •...
  • Page 18 To preset channels (SKIP) To skip a position number After presetting the channels, you may skip unnecessary position numbers so that only the channels you want to watch are selected. Select the position number to skipped with CH s/t buttons or the digit/ direct select (-/--, 0 –...
  • Page 19 • The adjustments below are not necessary under normal conditions. However, in areas of inferior broadcast conditions where adjustment is necessary for a better picture, adjust the tuning with the MFT (Manual Fine Tuning). The AFT OFF status automatically keeps the condition adjusted with the MFT function. •...

  • 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 : 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX Capacitors ..... CD : Ceramic Disk PF : Plastic Film EL : Electrolytic Resistors ....
  • Page 21 Location Parts No. Description Location Parts No. Description C448 24073118 ELECTROLYTIC, 160V 33UF M C683 24765102 ELECTROLYTIC CE04G 35V 1000UF M C449 24764102 ELECTROLYTIC, 25V 1000UF M C686 24591104 PLASTIC FILM, 50V 0.1UF J C463 24212222 CERAMIC DISC, 50V B 2200PF K C687 24591104 PLASTIC FILM, 50V 0.1UF J C464...
  • Page 22 Location Parts No. Description Location Parts No. Description C997 #5 24214102 CERAMIC DISC, 500V B 1000PF K #3 24203100 ELECTORLYTIC, 16V 10UF M 7L 3A C998 #5 24214102 CERAMIC DISC, 500V B 1000PF K #4 24203100 ELECTORLYTIC, 16V 10UF M 7L 3A C999 24436221 CERAMIC DISC, 50V SL 220PF J CD09 #1 24085944 ELECTROLYTIC, NONPOLAR, 50V 2.2UF M 11L...
  • Page 23 Location Parts No. Description Location Parts No. Description #3 24105560 CERAMIC CHIP, 50V CH 56PF J #2 24206229 ELECTROLYTIC, 50V 2.2UF M 7L 3A #4 24105560 CERAMIC CHIP, 50V CH 56PF J #3 24206229 ELECTROLYTIC, 50V 2.2UF M 7L 3A CD28 #1 24109102 CERAMIC CHIP, 50V B 1000PF K #4 24206229 ELECTROLYTIC, 50V 2.2UF M 7L 3A #2 24109102 CERAMIC CHIP, 50V B 1000PF K...
  • Page 24 Location Parts No. Description Location Parts No. Description #2 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A #2 24338159 OXIDE METAL FILM, 1W 1.5 OHM J #3 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A #3 24338159 OXIDE METAL FILM, 1W 1.5 OHM J #4 24206010 ELECTROLYTIC, 50V 1.0UF M 7L 3A #4 24338159 OXIDE METAL FILM, 1W 1.5 OHM J #5 24797010 ELECTROLYTIC, 50V 1UF M...
  • Page 25 Location Parts No. Description Location Parts No. Description #5 24011103 CHIP, METAL FILM, 1/20W 10K OHM J @U902 R919 24366102 CARBON FILM, 1/6W 1K OHM J #5 24011103 CHIP, METAL FILM, 1/20W 10K OHM J @U903 R920 24000880 FUSIBLE, 1W 5.1 OHM J R624 #1 24011104 CHIP, METAL FILM, 1/20W 100K OHM J R921...
  • Page 26 Location Parts No. Description Location Parts No. Description #2 24011102 CHIP, METAL FILM, 1/20W 1K OHM J #3 24011101 CHIP, METAL FILM, 1/20W 100 OHM J #3 24011102 CHIP, METAL FILM, 1/20W 1K OHM J #4 24011101 CHIP, METAL FILM, 1/20W 100 OHM J #4 24011102 CHIP, METAL FILM, 1/20W 1K OHM J RD10 #1 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RA81 #1 24011102 CHIP, METAL FILM, 1/20W 1K OHM J...
  • Page 27 Location Parts No. Description Location Parts No. Description #3 24011823 CHIP, METAL FILM, 1/20W 82K OHM J RI97 #5 24011563 CHIP, METAL FILM, 1/20W 56K OHM J #4 24011823 CHIP, METAL FILM, 1/20W 82K OHM J RI98 #5 24011563 CHIP, METAL FILM, 1/20W 56K OHM J RI01 24011330 CHIP, 1/20W 33 OHM J RI99...
  • Page 28 Location Parts No. Description Location Parts No. Description GR301 24000445 CHIP JUMPER, 1608TYPE L893 23280016 COIL, PEAKING, TRF4100AZ GR601 #5 24000445 CHIP JUMPER, 1608TYPE L900 23103249 CORE, FERRITE BEAD 3.5X4.5, TEM2011AO GR602 #5 24000445 CHIP JUMPER, 1608TYPE L901 #1 23200534 COIL, DG-0.37 TSB-2301AH GRI01 24000445 CHIP JUMPER, 1608TYPE #2 23200534 COIL, DG-0.37 TSB-2301AH...
  • Page 29 Location Parts No. Description Location Parts No. Description T801 23211787 COIL, LINE FILTER TRF3247AM QD01 #1 23009522 IC, NICAM DECODER PLQFP64 MSP3410G T802 23211777 COIL, LINE FILTER 37X40H 4.7MH TRF3202AR #2 23009522 IC, NICAM DECODER PLQFP64 MSP3410G T862 23217639 TRANSFORMER, TPW3535AM #3 23009522 IC, NICAM DECODER PLQFP64 MSP3410G G103 #1 23103249 CORE, FERRITE BEAD 3.5X4.5, TEM2011AO #4 23009522 IC, NICAM DECODER PLQFP64 MSP3410G...
  • Page 30 Location Parts No. Description Location Parts No. Description D673 23316231 DIODE, 1SS355 #4 23368249 POWER CORD, 2P 11.88MM VH-JST D674 23316231 DIODE, 1SS355 P803B 23164729 CONNECTOR, PLUG, 3P 5MM B JALCO YKF21-0027 D680 23357447 DIODE, SWITCH SILICON KDS160-RTK/USC P900 23164725 CONNECTOR, PLUG 2P D681 23316231 DIODE, 1SS355 P910...
  • Page 31 Location Parts No. Description Location Parts No. Description TUNER H001 #1 23321450 TUNER, ASIA HYPER FS D-J, ENV59DA7G3 #2 23321417 TUNER, ASIA MLT IICPLL D-J LG ECA33LX6 #2 23321428 TUNER, ASIA MLT IICPLL SANYO ECA33LX8 #2 23321452 TUNER, ASIA MLT IICPLL SAMSUNG ECA33LXB #2 23321473 TUNER, ASIA MLT IICPLL SANYO ECA33LXC #3 23321417 TUNER, ASIA MLT IICPLL D-J LG ECA33LX6 #3 23321428 TUNER, ASIA MLT IICPLL SANYO ECA33LX8...
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  • Page 33: Pc Boards Top & Bottom View

    L905 R977 P905 C908 R929 Q906 Q905 P900 R920 P502B R963 FRONT AV BOARD PD1421I (21CSZ7DR) (U904) FRONT AV BOARD PD1421F (21SZ7DE/21SZ7SH/21SZ7ST) (U904) FRONT AV BOARD PD1421G (21SZ7VX) (U904) BOTTOM (FOIL) SIDE SA07 SA06 SA04 SA03 SA02 SA01 KB01 DB02A...
  • Page 34 MAIN BOARD PD1525A (21CSZ7DR) (U902) MAIN BOARD PD1526K (21SZ7DE) (U902) MAIN BOARD PD1526N (21SZ7SH) (U902) MAIN BOARD PD1526O(21SZ7ST) (U902) MAIN BOARD PD1526P (21SZ7VX) (U902) BOTTOM (FOIL) SIDE CAUTION LIVE AREA P499 L885 C415 R431 D883 C415 R431 L805 R810 D303...
  • Page 35 IF STEREO BOARD PD1474A IF STEREO BOARD PD1474A (21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST) (U903) (21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST) (U903) BOTTOM (FOIL) SIDE TOP (COMPONENT) SIDE RI17 CI57 RI16 LI57 LI03 LI57 ZI07 ZI01 RI52 RI09 LI01 RI01 CI56 LI03 RI18 LI56 RI31 QI07 LI56 CI02 CI12 CI30...
  • Page 36 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 39 – – 40 –...
  • Page 37 TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SC2482 2SA562TM 2SC5243 2SC1569 2SA1015 2SC2655 2SC4544 2SC1815 2SC4721P 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 ON4409 RN2203 2SD1554 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 RN1204 RN2204 RN1205 RN1202 RN1201 –...
  • Page 38 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 42 –...
  • Page 39 SCHEMATIC DIAGRAM MODEL : 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX 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 40 – 44 –...

  • Page 41: Terminal View Of Transistors

    SPECIFICATIONS MODEL 21CSZ7DR 21SZ7DE 21SZ7SH 21SZ7ST 21SZ7VX Rated voltage ~ 220 - 240V, 50Hz ~ 110 - 240V, 50/60Hz Power consumption 125W (at ~ 220V 50Hz) Dimensions 613(W) X 487(D) X 470(H) mm (Width x Depth x Height) Mass 23.4kg...
  • Page 42 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...
  • Page 43 SCHEMATIC DIAGRAM MODEL : 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX 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 44 – 44 –...
  • Page 45 4.5V 4.5V 5.0V 32.0V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (TUNER) SHEET-1/9 (1/12)
  • Page 46 3.8V 5.2V 4.0V 5.2V 4.5V 5.2V 4.0V 5.2V 3.8V 5.2V 9.0V 5.2V 3.8V 9.0V 5.2V 5.2V 4.0V 5.2V 5.2V 5.2V 5.2V 9.0V 4.5V 3.9V 9.0V 4.0V 3.4V 3.5V 3.3V 9.0V 4.0V 3.3V 3.3V 3.4V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (AV SW) SHEET-2/9 (2/12)
  • Page 47 27.0V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (VERT) SHEET-3/9 (3/12)
  • Page 48 150Vp-p(H) 1000Vp-p(H) 82Vp-p(H) 27Vp-p(H) 120Vp-p(H) 280Vp-p(H) 23.0V -2.0V -2.0V 27.0V 0.4V 150V -10V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (HDEF) SHEET-4/9 (4/12)
  • Page 49 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (VCD/MICON) SHEET-5/9 (5/12)
  • Page 50 2.2V 2.2V 9.9V 21.0V 9.7V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (A-PRO/AUDIO-AMP) SHEET-6/9 (6/12)
  • Page 51 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (PROTECTOR) SHEET-7/9 (7/12)
  • Page 52 450Vp-p 1.5V 40mV (AC=220V) 14.0V 1.1V 51.0V 6.7 V 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (POWER) SHEET-8/9 (8/12)
  • Page 53 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX MAIN (LOW B REG) SHEET-9/9 (9/12)
  • Page 54 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX CRT DRIVE (10/12)
  • Page 55 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX FRONT AV (11/12)
  • Page 56 21CSZ7DR/21SZ7DE/21SZ7SH/21SZ7ST/21SZ7VX (12/12)

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