Hisense TC14FS68 Service Manual
  1. Manuals
  2. Brands
  3. Hisense Manuals
  4. TV
  5. TC14FS68
  6. Service manual

Hisense TC14FS68 Service Manual

Hide thumbs Also See for TC14FS68:
Table of Contents

Advertisement

Quick Links

X - RAY RADIATION PRECAUTION ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1
1.
SAFETY PRECAUTION ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... ... ... ... 1
2.
PRODUCT SAFETY NOTICE ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . . ... ... 2
3.
THE ALIGNMENT FLOW CHART ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . . ... ... 3
4.
INSTALLATION AND SERVICE ADJUSTMENTS ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3
5.
USA CHANNEL FREQUENCY TABLE (181 CH) ... ... ... ... ... ... ... ... ... ... ... ... ... . . . ... ... 9
6.
WIRING DIAGRAM ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... . . ... ... ... ... 12
7.
BLOCK DIAGRAM ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... . . . ... ... . ... ... 13
8.
IC BLOCK DIAGRAM ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... . . . ... ... ... 14
9.
10. TDA9850 BLOCK DIAGRAM ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... . . ... .... ... 15
11. COMPONENT AND BOTTOM VIEW ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . . . . ... ... 16
12. SCHEMATIC DIAGRAM ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... ... ... . . ... . ... ... 23
13. ELECTRICAL PARTS LIST ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... . ... ... ... . . ... . ... ... 24
CONTENTS

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TC14FS68 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Hisense TC14FS68

Summary of Contents for Hisense TC14FS68

  • Page 1: Table Of Contents

    CONTENTS X - RAY RADIATION PRECAUTION … … … … … … … … … … … … … … … … … … … … … 1 SAFETY PRECAUTION … … … … … … … … … … … … … … … … … … … … … . … … … … … 1 PRODUCT SAFETY NOTICE …...

  • Page 2: Ray Radiation Precaution

    CAUTION: BEFORE SERVICING THE CHASSIS, READ THE “ X-RAY RADIATION PRECAUTION” “ SAFETY PRECAUTION” ON PAGE 1 AND “ PRODUCT SAFETY NOTICE” ON PAGE 2 OF THIS MANUAL. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous X - RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit.

  • Page 3: Product Safety Notice

    8. Before returning the set to your customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, screwheads, metal overlays, control shafts etc. to be sure the set is safe to operate without danger of electrical shock. Plug the AC line cord directly into a 120V AC outlet (do not use a line isolation transformer during this check).

  • Page 4: The Alignment Flow Chart

    THE ALIGNMENT FLOW CHART To fit the front cabinet, B+, AGC,H-frequency Preheat for 30 minutes external degaussing Factory items’ adjustment Focus White balance re-alignment, focus, high Heatrun for 2 hours voltage, X-ray protection test, sound power test, CCD, V-chip, To fit the back cabinet BTSC, secret code setting, AV function check.
  • Page 5 1. Turn the power switch on and adjust customer controls for normal operation. 2. Temporarily short R412 on the Main Board with a jumper wire. Raster and sound will disappear. 3. The receiver must remain in this state even after removing the jumper wire. This is the evidence that the FS circuit is functioning properly.
  • Page 6 TEST EQUIPMENT 1) DC regulated power supply PAB18-1.8 2) Audio voltameter Oscilloscope High-voltage meter 5) Digital multimeter AC voltameter TEST MODE SET(CHECK) TEST MODE ADJUSTMENT INSTRUCTION TEST MODE adjustment is a special adjustment which is controlled by I C BUS. The TV set has been set at optimum mode at the factory.
  • Page 7 Equate 10% . 2) Select the V.LINE item, adjust the value to make the upper and lower grid's(on the screen) vertical distance equal. Select the V.SC item, adjustthe value to make the vertical distance from upper grid to middle screen is equal to the vertical distance from lower grid to middle screen. 3) Repeat the above steps 2) &3) to make the V-center, V-amplitude, V-linearity at the optimum mode.
  • Page 8 0~15 INPUT LEVEL SPECTRAL 0~63 WIDE BAND 0~63 STEREO 0~63 FILTER SET 0~31 0~63 SAP VCO Note: 1.All the items sign with can adjust to different value for different "*" TV set. 2.All the items sign with do not affect the IC of La76814. "**"...
  • Page 9 Stereo Option(0:off;1:on) STEREO OPTION 0:Woofer;1:Headphone WOOFER/H.PHONE WOOFER VOL.OPT Volume of H.Phone(0:No Woofer;1:Woofer) Sensitivity Function(0:off;1:on) SENSITIVITY Cut Video Out Before Power Off(0:on; 1:off) V.MUTE P.OFF CCD OPTION CCD Function(0:off; 1:on) V-CHIP OPTION V-CHIP Function(0:off; 1:on) Password of V-CHIP(0:off;1:on) PASSWORD OPT COMB.OPTION Y/C Separate Function(0:off;1:on) 0:TDF-3M3;1:PHOLIPUV1336B TUNER OPTION...

  • Page 10: Usa Channel Frequency Table (181 Ch)

    USA CHANNEL FREQUENCY TABLE U.S.A. Channel PIF 45.75MHZ, CIF 42.17MHZ, SIF 41.25MHZ. UNIT:MHZ Channel fp(picture) fs(sound) Channel fp(picture) fs(sound) 55.25 59.75 603.25 607.75 61.25 65.75 609.25 613.75 67.25 74.75 615.25 619.75 77.25 81.75 621.25 625.75 83.25 87.75 627.25 631.75 175.25 179.75 633.25 637.75...
  • Page 11 USA CHANNEL FREQUENCY TABLE U.S.A. CATV Channel PIF 45.75MHZ, CIF 42.17MHZ, SIF 41.25MHZ. UNIT:MHZ Channel fp(picture) fs(sound) Channel fp(picture) fs(sound) 73.25 77.75 295.25 299.75 55.25 59.75 301.25 305.75 61.25 65.75 307.25 311.75 67.25 74.75 313.25 317.75 77.25 81.75 319.25 323.75 83.25 87.75 325.25...
  • Page 12 USA CHANNEL FREQUENCY TABLE U.S.A. CATV Channel PIF 45.75MHZ, CIF 42.17MHZ, SIF 41.25MHZ. UNIT:MHZ Channel fp(picture) fs(sound) Channel fp(picture) fs(sound) 505.25 509.75 115.25 119.75 511.25 515.75 649.25 653.75 517.25 521.75 655.25 659.75 523.25 527.75 661.25 665.75 529.25 533.75 667.25 671.75 535.25 539.75 673.25...

  • Page 13: Wiring Diagram

    - 12 -...

  • Page 14: Block Diagram

    - 13 -...

  • Page 15: Ic Block Diagram

    LA76814 IC BLOCK DIAGRAM AudioOutput SIFInput 2 . 4 FMOutput SIFAPCFilter 1.93 2.53 PIFAGCFilter SIFOutput 2.11 2.56 Ext.AudioInput. RFAGCOutput 2 . 8 PIFInput1 FLLFilter VCOCoil1 PIF Input2 IFGround VCOCoil2 IFVcc APCfilter 2.18 2.12 FMFilter VideoOutput 2.34 2.53 AFTOutput BlackLevelDetector BusData InternalVideo Input(S_CIN) 4 .

  • Page 16: Tda9850 Block Diagram

    - 15 -...

  • Page 17: Component And Bottom View

    COMPONENT VIEW OF MAIN BORAD - 16 -...
  • Page 20 COMPONENT VIEW OF CRT BORAD - 18 -...
  • Page 21 COMPONENT VIEW OF STEREO BORAD - 20 -...
  • Page 22 Vout Lout Rout V1in L1in R1in V2in L2in R2in AUDIO Rout Lout...
  • Page 23 PARTS LIST FOR TC14FS68 DESCRIPTION UNIT QTY LOCATION E/RSAG7.820.041 A1 (THE MAIN PCB) E/RSAG7.820.304A A2 （THE CONTROL PCB） E/RSAG7.820.291A A4 （THE FRONT AV PCB） E/RSAG7.820.042 A5 （THE STEREO PCB） E/RSAG7.820.036 A6 （THE CRT PCB） 1/6W CARBON RESISTOR RT13-1/6W-2R2-J R615 R625...

  • Page 24: Schematic Diagram

    DESCRIPTION UNIT QTY LOCATION RT13-1/6W-100K-J R102 R113 R114 RT13-1/6W-150K-J R729 R1701 RT13-1/6W-270K-J R726 RT13-1/6W-330K-J R403 RT13-1/6W-390K-J R709 RT13-1/6W-560K-J R204 RT13-1/6W-2M0-J R207 1/4W CARBON RESISTOR RT14-1/4W-15R-J R519 RT14-1/4W-33R-J R935 R940 RT14-1/4W-56R-J RT14-1/4W-100R-J R517 RT14-1/4W-270R-J R400 RT14-1/4W-2K2-J R526 RT14-1/4W-3K3-J R451 RT14-1/4W-4K7-J R553 RT14-1/4W-5K6-J R511 RT14-1/4W-12K-J...

  • Page 25: Electrical Parts List

    DESCRIPTION UNIT QTY LOCATION RY18-3W-12K-J R718 RY28-3W-39R-J R563 1W INSURANCE RESISTOR RF10-1W-1R0-J R472 R474 RF10-1/2W-3R3-J  W425 RF10-1W-3R9-J R491 2W INSURANCE RESISTOR RF10-2W-1R0-J R562 R569 1/4W METAL FILM RESISTOR RJ14-1/4W-4K7-F R273 1W METAL FILM RESISTOR RJ16-1W-1R-J R459 1/2W GLASS-GLAZED RESISTOR RI40-1/2W-1K5-K R233 RI40-1/2W-5M6-K...
  • Page 26 DESCRIPTION UNIT QTY LOCATION CT81-AC400V-E-2200P-M C533 CC1-RH-50V-390P-J C901 C911 C921 CC1-RH-50V-56P-J C903 C913 C923 POLYESTER CAPACITOR CL11-63V-0.01µ-K C207 C515 CL11-63V-0.022µ-K C120 CL11-63V-0.033µ-K C406 CL11-63V-0.22µ-K C402 CL11-63V-0.47µ-K C403 CL11-63V-0.1µ-K C514 C408 C616 C626 CL11-100V-0.1µ-K C458 C459 CBB62-AC250V-0.1µ-M (EMC)C501 (EMC)C502 POLYPROPYLENE CAPACITOR CBB21A-400V-0.3µ-J C441 CBB81A-2KV-7n8-J...
  • Page 27 DESCRIPTION UNIT QTY LOCATION CD110-160V-220µ-M C561 CD110-250V-22µ-M C474 CD110-250V-470µ-M C507 NO ELECTRODE ELECTROLYTIC CAPACITOR CD71-BP-50V-1µ-M C231 INDUCTOR COIL LGA0305-15µH-K L102 L121 LGA0305-39µH-K L701 TEM2011 L401 ZZ0008 (EMC)L431 (EMC)L432 AC0042 L441 TRANSFORMER ST6017 T101 JDT1904 T431 BCK-42-25 T511 JF0501-91802A T471 FILTER 滤波器...
  • Page 28 DESCRIPTION UNIT QTY LOCATION 2SB892S V554 2SC2383 V431 2SC2688 V902 V912 V922 2SC4237 V513 2SD1879 V432 LA76814 N101 LC863232A-5V57 N701 LA7841 N451 LA4285 N601 N602 L7805CV N552 N553 L7812CV N551 CW574CS N705 AT24C04 N702 TC4053BP N801 TDA9850 OPTICAL-ELECTRONIC COUPLER PC817B/HS817 N501 CERAMIC OSC JA25D-3.58MHZ...
  • Page 29 DESCRIPTION UNIT QTY LOCATION W700 W703 W704 W713 W716 W722 W734 W735 W736 W740 W755 W756 W762 W804 W806 W807 W808 W809 W811 W812 W815 W845 R270 R432 R781 W552 W01 W02 10mm 54 W109 W111 W113 W114 W117 W121 W124 W125 W212 W214 W216 W222 W404 W407 W408 W412 W413 W414 W420 W421 W422 W431 W433 W475 W551 W557 W570 W612 W613 W626 W631 W702 W705 W706 W707 W708 W709 W710 W714 W718 W720 W723...
  • Page 30 DESCRIPTION UNIT QTY LOCATION TJC2-3Y FOR AC CORD DEGAUSSING COIL PLUG TJC2-2A XS501 GROUND LINE SUBASSEMBLY TJC2-1A XP903 POWER CORD NISPT-2 SPEAKER YDT411E-5W-8R C BL301 BL302 DEGAUSSING COIL AHA-HXC35A4 L909 A36CPAA00X02 HEAT SINK RSR7.308.0181 RSR5.861.0201 RSR5.861.0135 RSAG7.308.043 FUSE SUPPORTER RSR7.736.0102 FOR FUSE SPACER RSR7.854.0108...
  • Page 31 DESCRIPTION UNIT QTY LOCATION POWER KNOB RSAG8.337.018 KNOB(FOR THE FRONT TUNCTION) RSAG8.335.005 BAR CODE TAGBOAD NAMEPLATE E/RSR8.807.991 WASHER RSR8.942.0104 FOR CRT RSR8.610.0137 RSR8.683.0128 RSR8.942.0106 RSR7.844.0113 3 3-140HV GB97.1-85 Ф GASKET RSAG8.870.188 RSAG8.870.189 BOTTOM SUPPORTOR(FOR CRT) RSR6.150.0118 FOR CRT SPONGE 40X15X5(mm) AC CORD CLIP QH009 LABEL...
  • Page 32 DESCRIPTION UNIT QTY LOCATION SJ2824-87 12 ST4X20C SJ2825-87 ST3X12C (BLACK 2) SJ2825-87 11 ST3X10C SJ2843-87 SJ2835-87 M3X8 SJ2832-87 ST3×8 SJ2835-87 M3X10 SJ2835-87 M3X12 NUT M3 WRAPPING BOX E/RSR8.865.1077 PLASTIC BAG RSAG8.840.005 FOR THE USER'S MANUAL RSAG8.840.009 FOR THE TV SET BOPP ADHESIVE TAPE 24X400mm 24X100mm...
  • Page 33 DESCRIPTION UNIT QTY LOCATION Page 11 of 22...

This manual is also suitable for:

Tc24fs2h

Table of Contents