Related Manuals for Haier HTX20S32
Summary of Contents for Haier HTX20S32
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Page 1: Service Manual
HAIER COLOR TELEVISION SERVICE MANUAL PART # TV-8888-38 HAIER AMERICA TRADING, LLC www.haieramerica.com... - Page 2 HTX20S32 COLOR TELEVISION Service Manual MODEL: HTX20S32 Features MTS Stereo Front Audio/Video input V-CHIP, CCD NO:M-AM-US-20R21-76814 Edition: 2002.12.30...
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Page 3: Table Of Contents
CONTENTS CONTENTS Contents--------------------------------------------------------------------1 Product Code illumination and Series Introduction--------------------2 Features--------------------------------------------------------------------------------3 Safety Precautions------------------------------------------------------------------4 Warning and Cautions-------------------------------------------------------------5 Net dimension----------------------------------------------------------------------11 Parts and Functions--------------------------------------------------------------12 Remote Controller Functions--------------------------------------------------13 Program Diagram------------------------------------------------------------------14 Maintenance Service and Trouble shooting------------------------------15 Circuit Diagram---------------------------------------------------------------------18 Circuit Explanation----------------------------------------------------------------22 Adjustment---------------------------------------------------------------------------24 Exploded View----------------------------------------------------------------------27 List of Parts--------------------------------------------------------------------------28 Damageable Parts List-----------------------------------------------------------44 Information of Resistors and Capacitors----------------------------------44... -
Page 4: Product Code Illumination And Series Introduction
Product Code illumination and Series Introduction Product Code illumination and Series Introduction 20 S32 Color television appearance CRT size (unit: inch) FLAT CRT Series Name Haier... -
Page 5: Features
Features Features MODEL MODEL HS-2190 TV-9708 FUNCTION FUNCTION ITEM ITEM PICTURE SOFTWARE Main IC 76814 Digital curtain Flat square Slow fading on & off NTSC Color system Semitransparent menu Audio system Non-flashing channel changing Number of channels ZOOM E ˆF ˆS ˆ OSD language 16:9 mode Multi-picture modes... -
Page 6: Safety Precautions
Safety Precautions Safety Precautions SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical identify these parts and mechanical parts in this chassis have special safety-related characteristics! In the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. -
Page 7: Warning And Cautions
Warning and Cautions Warning and Cautions 1. When you clean the TV set, please pull 4. To prevent the TV set from firing and out the power plug from AC outlet. Don't electric shock, don't clean the cabinet and the screen with make the TV set rain benzene, petrol and other chemicals. - Page 8 Warning and Cautions NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions. Remember: Safety First. General Servicing Precautions 1). Always unplug the receiver AC power cord from the AC power source before: a.
- Page 9 Warning and Cautions components are usually called Electrostatic ally Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
- Page 10 Warning and Cautions CAUTION: Work quickly to avoid overheating the circuit board printed foil. 1) Use the following unsoldering technique a. Allow the soldering iron tip to reach normal temperature. (500 F to 600 b. First, hold the soldering iron tip and solder the strand against the component lead until the solder melts.
- Page 11 Warning and Cautions Remove the heat sink mounting screw (if so equipped). Carefully remove the transistor from the heat sink of the circuit board. Insert new transistor in the circuit board. Solder each transistor lead, and clip off excess lead. Replace heat sink.
- Page 12 Warning and Cautions At other connections Use the following technique to repair the defective copper pattern at connections other than IC Pins. This technique involves the installation of a jumper wire on the component side of the circuit board. 1) Remove the defective copper pattern with a sharp knife. Remove at least 1/4 inch of copper, to insure that a hazardous condition will not exist if the jumper wire opens.
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Page 13: Net Dimension
Net dimension 6.Net dimension... -
Page 14: Parts And Functions
Parts and Functions 7.Parts and Functions HTF20R21... -
Page 15: Remote Controller Functions
8.Remote Controller Functions DISP TV/AV SOUND RA TING MENU RECALL VOL+ P.STD Haier HYF-25E 1. Power Button 8. Menu Select Button 2. Time & Channel Display Button 9. Audio Select Button 3. Rating Button 9. Audio Select Button TV Program (V-Chip Setup) 10.Direct Access Channel Select... -
Page 16: Program Diagram
Program Diagram Program Diagram Insert the power plug into the power line socket and insert the antenna plug into the antenna socket on the rear panel. Press down the power switch of the TV set. The red indicator light goes on. Program preset A ˚... -
Page 17: Maintenance Service And Trouble Shooting
Maintenance service and trouble shooting Maintenance service and trouble shooting 1). Adjustment item Explanation: Explanation Range Remark H.PHASE H.PHASE 0~31 NT.H.PHASE H.PHASE 0~31 No used H.BLK.LEFT H.BLK.RIGHT V.SIZE Vertical Size 0~127 V.LINE Vertical Linearity 0~31 V.POSI Vertical DC 0~63 V.SC Vertical S-Correction 0~31 NT.V.SIZE... - Page 18 Maintenance service and trouble shooting Brt.Abl.Def (0/1) Mid.Stp.Def (0/1) — < % < * % / R-Y/B-Y Gain Balance (0~15) No use (LA76814) R-Y/B-Y Angle (0~15) C_Kill OFF (0/1) Sound Trap (0~7) Volume Filter Defeat Video IF setting (0 45.75M 1 58.75M) For LA76814 Video Level (0~7)
- Page 19 Maintenance Service and Trouble shooting No lig Check to see if Fuse3 is normal Abnormal Normal Check VD501, C507, Check to see 110V ˆ180V V513, etc. etc. voltage is normal Normal Abnormal Check to see if the Test to see all terminal collector voltage of V552 Resistance of load is 0V...
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Page 20: Circuit Diagram
Circuit Diagram 11. Circuit Diagram... - Page 21 Circuit Diagram XS 803 X S 801- 1 X S 801- 2 A V2 XS 802 A V1 AV out R 825 R 624 1/ 2W39 C 806 CRT BOARD 16V 10 R1010 W801 R1009 R 826 C 03 C 04 4.
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Page 22: Circuit Block Diagram
Circuit Block Diagram Circuit Block Diagram Antenna Sound Power Amplifier Picture/Sound IF Amplifier, Tune Video and audio signal Processing, RGB Output Circuits and H &V Sync pulse Horizontal Scan segregation Output C BUS Vertical Scan Output Main Processor Audio/Video In/Out Infrared Receiver Remote Controller NO:M-AM-US-20R21-76814... - Page 23 Circuit Block Diagram...
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Page 24: Circuit Explanation
Circuit Explanation 12. Circuit Explanation , & U H I H U H Q F H G D W D , & U H I H U H Q F H G D W D , & U H I H U H Q F H G D W D , &... - Page 25 Circuit Explanation N101 LA76814K Ä Å Ä Å , & # - , " # - ,1 2) 3 # - ,1 & & " 5 / ,- - 67 %108 & " 5 / , & & & 5 / & :;...
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Page 26: Adjustment
Adjustment 13. Adjustment D O L J Q P H Q W D O L J Q P H Q W D O L J Q P H Q W D O L J Q P H Q W f. User Remote controller g. -
Page 27: White Balance Adjustment
Adjustment optimal ˜ ˜ see figure 2 ¯.At last press “CH+” or “CH-” and select “SPECTRAL” item, adjust high frequency separation. (see figure 3) and make it optimal ˜ ˜ see figure 4 ¯.If effect isn’t good, you can repeat above steps till it is optimal. - Page 28 Adjustment GEOMETRIC ALIGNMENT: Receive the monochrome circle pattern (NTSC system); Check vertical center and horizontal center and H-linearity .if they are not standard, press FACTORY button to enter service mode, and adjust vertical size, vertical linearity, vertical center, horizontal center, make them standard.
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Page 29: Exploded View
Damageable Parts List 16. Damageable Parts List Location Material Code Parts Name Type Qt. (unit) Remark XS901 0094300290 Connect housing GZS10-2-AC2-DGV 0094600119 Oscillator CSB503F58 N641 0094400796 TDA9850 V301 0094101006 Transistor 2SC1815(Y)------F V432 0094400465 Transistor 2SD1651----B-A V513 0094401093 STR-F6654 N801 0094400417 TC4053BP V601 0094400527... -
Page 30: List Of Parts
ABBREVIATION OF PART NAME AND DESCRIPTION RESISTOR PART NAME & DESCRIPTION PART NAME & DESCRIPTION TYPE ALLOWANCE TYPE ALLOWANCE Carbon f 1% f 5% Ceramic Solid f 5% Ceramic Metal f 10% Film Oxide Electrolytic Fuse Tantalum +100%-0% +80%-0% CAPACITOR Terminal view of transistors KSC815-YTA KSR1010TA...