Haier HT-2180 Service Manual
  1. Manuals
  2. Brands
  3. Haier Manuals
  4. TV
  5. HT-2180
  6. Service manual
Haier HT-2180 Service Manual

Haier HT-2180 Service Manual

Haier ht-2180 colour television service manual
Hide thumbs Also See for HT-2180:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
HT-2180
COLOUR TELEVISION

Service Manual

Features
218 programs stored
Auto-correcting black balance
Audio/video input, S-Video input
Haier Group
NO:M-EE-HT-2180-1238
Edition:2003.1.20

Advertisement

Table of Contents
loading

Related Manuals for Haier HT-2180

Summary of Contents for Haier HT-2180

  • Page 1: Service Manual

    HT-2180 COLOUR TELEVISION Service Manual Features 218 programs stored Auto-correcting black balance Audio/video input, S-Video input Haier Group NO:M-EE-HT-2180-1238 Edition:2003.1.20...

  • Page 2: 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-------------------------------------------------------------------------23 Circuit Explanation--------------------------------------------------------------------26 Adjustment-------------------------------------------------------------------------------31 Exploded View--------------------------------------------------------------------------32 List of Parts------------------------------------------------------------------------------33 Damageable Parts List---------------------------------------------------------------51 Information of Resistors and Capacitors--------------------------------------52...

  • Page 3: Product Code Illumination And Series Introduction

    Product Code illumination and Series Introduction Product Code illumination and Series Introduction T - 21 Color television appearance CRT size(unit:inch) Company of Signal processor IC TD: Toshiba Haier...

  • Page 4: Features

    Features Features MODEL MODEL HT-2180 HT-2180 FUNCTION FUNCTION ITEM ITEM PICTURE SOFTWARE Main IC TB1238AN Digital curtain Flat square Slow fading on & off Color system Semitransparent menu Audio system Non-flashing channel changing NO.of channels ZOOM ENGLISH OSD language 16:9 mode...

  • Page 5: 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 6: 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 7 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 8 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 9 Warning and Cautions Warning and Cautions draw the melted solder with an anti-static, suction-type solder removal device with solder braid. CAUTION: Work quickly to avoid overheating the circuit board printed foil. Use the following unsoldering technique a. Allow the soldering iron tip to reach normal temperature. (500 F to 600 b.
  • Page 10 Warning and Cautions Removal/Replacement Heat and remove all solder from around the transistor leads. 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.
  • Page 11 Warning and Cautions pin. Solder the IC connection. 4) Route the jumper wire along the path of the out-away copper pattern and let it overlap the previously scraped end of the good copper pattern. Solder the overlapped area and clip off any excess jumper wire.

  • Page 12: Net Dimension

    Net dimension Net dimension Side view Front view Haier back-view HT-2180...

  • Page 13: Parts And Functions

    Parts and Functions Parts and Functions Power switch button Infrared sensor window Power indicator Programme up/down button Volume up/down button TV/AV alternating button Menu display button...

  • Page 14: Remote Controller Functions

    Remote Controller Functions 8.Remote Controller Functions Remote Controller Battery installation and replace- ment for remote control unit The remote controller uses two 1.5V AA batteries. For battery installation and re- placement are as following. 1.Turn the remote control unit upside down.

  • Page 15: Program Diagram

    Program Diagram 9.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. If no picture appears, press the button on the remote controller.

  • Page 16: Maintenance Service And Trouble Shooting

    Maintenance Service and Trouble shooting 10.Maintenance Service and Trouble shooting 1.Factory adjustment information Operation method: after the appliance is switched on, make the volume value to zero. Then press VOL- key on the TV set and press the DISP button on remote controller at the same time to enter the S state.

  • Page 17: Specifications

    Maintenance Service and Trouble shooting Variable Item Specifications Default Value Mark 50Hz VERTICAL HEIGHT 50/60Hz HORIZONTAL POSITION VP60 60Hz VERTICAL POSITION HITS 50/60Hz VERTICAL HEIGHT VLIN 50Hz VERTICAL LINEAR CORRECTION VERTICAL S CORRECTION VLIS 50/60Hz VERTICAL LINEAR CORRECTION 50Hz PINCUSHION CORRECTION DPCS 50/60Hz PINCUSHION CORRECTION 50Hz TRAPEZIUM CORRECTION...
  • Page 18 Maintenance Service and Trouble No raster and no sound Check the fuse Normal Abnormal Check VD503∼VD506 V513 C507 Check loading voltages of 109V 180V Normal Abnormal Check if the connector electrode Check if all loading resistors are normal Abnormal Normal Normal Abnormal power...
  • Page 19 Maintenance Service and Trouble shooting No raster Check if G2 voltage on CRT board is normal Normal Abnorma Check heater voltage Check the base electrode voltage of V444 Abnormal Normal Normal Abnormal Check heater voltages of pins resister Check the voltage betwecn Check circuit at X602...

  • Page 20: Maintenance Service And Trouble Shooting

    Maintenance Service and Trouble shooting Horizontal bright line Break R908 , let multimeter preset on R 1K and red meter rod grounding, let black meter rod tap pin 4 at N402.see if the bright line can wide at instant. Check if R907 R448 are There is breakdown in the vertical output rosin joint and the resistor grate...
  • Page 21 Maintenance Service and Trouble shooting Picture OK, no sound Break C700,let red meter rod ground and let black meter rod tap pin6 at N701, the speakers has snapping. If power amplifier is normal , Break the connector electrode of check N201 sound IF circuit and V701, let the black meter rod tap pin N201.
  • Page 22 Maintenance Service and Trouble shooting RASTER OK, NO PICTURE, NO SOUND Whether there are noise dots? Whether there are voltages in Check RAGC item of IC bus is every pin of tuner set “00”. Use the remote controller and Check picture IF channel enter S-MODE and adjust and V231, V212, N201 RAGC to near 2D...
  • Page 23 Maintenance Service and Trouble shooting There is black words? Check L902,C926,C925 Check the circuit between pin 22pin 24 Abnormal Normal Check circuit between Replace V922,R915,C450 and pin 5 at FBT. compartments...

  • Page 24: Circuit Diagram

    Circuit Diagram Circuit Diagram...

  • Page 25: Circuit Block Diagram

    Circuit Block Diagram Circuit Block Diagram Sound power amf. IF.video color RGB H.V oscillation scan signal prossing H output V output EPROM Remote co AV input/output Infrared sensor EXT.A.IN EXT.C.IN EXT.Y.IN SIF band SIF trap pass filter unit unit Color subcarry band-pass/ high trap circuit -pass filter...

  • Page 27: Circuit Explanation

    Circuit Explanation Circuit Explanation IC function pins 1) Integrated circuits used in this model 1) TBA1238AN: picture intermediate amplification, sound intermediate amplification, video signal processing, chrominance signal processing, RGB output circuit, horizontal and field oscillating scan circuit. 2) TMP87CK38N: super central micro-processing unit. 3) LA7830 (LA7833): field scan circuit 4) LA4275: sound power amplifier circuit 5) LA7910: wave band change-over switch...
  • Page 28 Circuit Explanation N201 TB1238AN Function Reference Voltage(V) Reference Resistance(KΩ ) Without With signal Forward(Ω) Backward(Ω) signal Unweighted 2000 Audio signal output 2000 PIF circuit power supply AFT output and auto-adjusting PIF circuit grounding IF signal input pin 2000 IF signal input pin 2000 RF AGC output 2000...
  • Page 29 Circuit Explanation Function Reference Voltage(V) Reference Resistance(KΩ ) Without With signal Forward(Ω) Backward(Ω) signal 40 Line AFC filtering 2000 41 External video/Y signal input 2000 42 Digital circuit grounding 43 PIF composite video signal input 2000 44 Black level detection filtering 4000 45 External chrominance signal input 2000...
  • Page 30 Circuit Explanation Function Reference Voltage(V) Reference Resistance Without With Forward(Ω) Backward(Ω) signal signal Vacant pin 10000 Vacant pin 10000 Grounding Red primary color character 2200 output...
  • Page 31 Circuit Explanation Function Reference Voltage(V) Reference Resistance Without With Forward(Ω) Backward(Ω) signal signal Green primary color 2200 character output Blue primary color 2200 character output Character blanking 2200 Line flyback 10000 Field flyback 10000 Character oscillating 10000 Character oscillating 10000 Grounding CPU clock 10000...

  • Page 32: Adjustment

    Adjustment Adjustment The chassis of this TV set uses Toshiba IC with the latest digital bus processing technology. The adjustment points are fewer and the adjustment is simpler. The adjustment method is as follows: 1) +B: 109±0.3V adjustment. A) Switch on the power and connect PAL circular signals to the tuner. B) Adjust variable resistor RP501 until the voltage of the main power is 109±0.3V.

  • Page 33: Exploded View

    Exploded View Exploded View HT-2180 EXPLODED VIEW HT-2180T PARTS LIST Serial Number Name Part Code Specification Quantity FRONT MASK 0090200309 MTAA5013AA--- SPEAKER 0094000221 YDT613-4W-16 SCREW 0090600023 SJ2824-87 ST4*16F RUBBER WASHER 0090200076 0094004661 54SX503Y22-DC01 DEGAUSSING COIL CLIP 0090800171 BJZ0001------ COMBINED NUT 0090600069 CRT GROUND AS.

  • Page 34: List Of Parts

    List of Parts List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark 0090300076 Rubber washer 1mm φ6.5 0090800171 Degaussing coil tie BJZ0001-----Q 0090100122 Washer 1MM φ8.5 0090501291 plastic bag 240*160 0090600069 combined nut M6 (98025) 0094000222 CRT 54SX503Y22-DC01 W1002 0090400240 Wire JG4401-610--Q...
  • Page 35 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark R207 0094100017 Resister RT13-1/6W-100Ω±5%------T R216 0094100017 Resister RT13-1/6W-100Ω±5%------T R217 0094100017 Resister RT13-1/6W-100Ω±5%------T R219 0094100017 Resister RT13-1/6W-100Ω±5%------T R221 0094100017 Resister RT13-1/6W-100Ω±5%------T R232 0094100017 Resister RT13-1/6W-100Ω±5%------T R236 0094100017 Resister RT13-1/6W-100Ω±5%------T R238 0094100017 Resister RT13-1/6W-100Ω±5%------T R702...
  • Page 36 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark R517 0094100753 Resister RT13-1/6W-1.2KΩ±5%------T R603 0094100753 Resister RT13-1/6W-1.2KΩ±5%------T R613 0094100753 Resister RT13-1/6W-1.2KΩ±5%------T R623 0094100753 Resister RT13-1/6W-1.2KΩ±5%------T R633 0094100753 Resister RT13-1/6W-1.2KΩ±5%------T R211 0094100025 Resister RT13-1/6W-1.5kΩ±5%------T R274 0094100025 Resister RT13-1/6W-1.5kΩ±5%------T R275 0094100025 Resister RT13-1/6W-1.5kΩ±5%------T R276...
  • Page 37 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark R991 0094100033 Resister RT13-1/6W-10KΩ±5%------T R992 0094100033 Resister RT13-1/6W-10KΩ±5%------T R102 0094100034 Resister RT13-1/6W-15KΩ±5%------T R212 0094100034 Resister RT13-1/6W-15KΩ±5%------T R294 0094100034 Resister RT13-1/6W-15KΩ±5%------T R634 0094100034 Resister RT13-1/6W-15KΩ±5%------T R929 0094100034 Resister RT13-1/6W-15KΩ±5%------T R515 0094100779 Resister RT13-1/6W-22kΩ±5%------T R551...
  • Page 38 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark R522 0094100994 Resister RT14-1/4W-15kΩ±5%------T R566 0094100996 Resister RT14-1/4W-100KΩ±5%------T R554 0094100997 Resister RT14-1/4W-150KΩ±5%------T R442 0094100999 Resister RT15-1/2W-330Ω±5%------T R407 0094101000 Resister RT15-1/2W-1KΩ±5%------T R451 0094101001 Resister RT15-1/2W-2.7KΩ±5%------T R560 0094101002 Resister RT15-1/2W-3.3KΩ±5%------T R462 0094101003 Resister RT15-1/2W-6.8KΩ±5%------T R552...
  • Page 39 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark C225 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C226 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C258 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C260 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C296 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C297 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C262 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C266 0094201040 Capacitor CT1-08-2F4-63V-0.01μF-Z------F C273...
  • Page 40 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark C430 0094200990 Capacitor CD110-35V-47μF-M------F C705 0094201243 Capacitor CD110X-35V-100μF-M------F C449 0094201243 Capacitor CD110X-35V-100μF-M------F C212 0094200042 Capacitor CD110-50V-0.22μF-M------F C271 0094200016 Capacitor CD110-50V-0.47μF-M------F C256 0094200043 Capacitor CD110-50V-1μF-M------F C291 0094200043 Capacitor CD110-50V-1μF-M------F C265 0094200043 Capacitor CD110-50V-1μF-M------F C103...
  • Page 41 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark VD621 0094400049 Diode 1N4148------T VD630 0094400049 Diode 1N4148------T VD631 0094400049 Diode 1N4148------T VD902 0094400049 Diode 1N4148------T VD904 0094400049 Diode 1N4148------T VD924 0094400049 Diode 1N4148------T VD971 0094400049 Diode 1N4148------T VD972 0094400049 Diode 1N4148------T R923...
  • Page 42 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark WR295 0094101102 Jumper φ0.6mm/5mm------B W101 0094101103 Jumper φ0.6mm/7.5mm------B W102 0094101103 Jumper φ0.6mm/7.5mm------B W103 0094101103 Jumper φ0.6mm/7.5mm------B W104 0094101103 Jumper φ0.6mm/7.5mm------B W105 0094101103 Jumper φ0.6mm/7.5mm------B W106 0094101103 Jumper φ0.6mm/7.5mm------B W204 0094101103 Jumper φ0.6mm/7.5mm------B W205...
  • Page 43 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark W931 0094101103 Jumper φ0.6mm/7.5mm------B W932 0094101103 Jumper φ0.6mm/7.5mm------B W933 0094101103 Jumper φ0.6mm/7.5mm------B W953 0094101103 Jumper φ0.6mm/7.5mm------B W954 0094101103 Jumper φ0.6mm/7.5mm------B W955 0094101103 Jumper φ0.6mm/7.5mm------B W956 0094101103 Jumper φ0.6mm/7.5mm------B W957 0094101103 Jumper φ0.6mm/7.5mm------B W958...
  • Page 44 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark WL941 0094101104 Jumper φ0.6mm/10mm------B WR921 0094101104 Jumper φ0.6mm/10mm------B WR978 0094101104 Jumper φ0.6mm/10mm------B W234 0094101105 Jumper φ0.6mm/12.5mm------B W236 0094101105 Jumper φ0.6mm/12.5mm------B W261 0094101105 Jumper φ0.6mm/12.5mm------B W603 0094101105 Jumper φ0.6mm/12.5mm------B W900 0094101105 Jumper φ0.6mm/12.5mm------B W902...
  • Page 45 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark R413 0094101291 Resister RY16-1W-1KΩ±5%-12-C-A R525 0094100972 Resister RY17-2W-68Ω±5%-20-C-A R437 0094100719 Resister RY17-2W-270Ω±5%-20-C-A R939 0094100719 Resister RY17-2W-270Ω±5%-20-C-A R553 0094101011 Resister RY17-2W-12KΩ±5%-20-C-A R563 0094101011 Resister RY17-2W-12KΩ±5%-20-C-A R606 0094101011 Resister RY17-2W-12KΩ±5%-20-C-A R616 0094101011 Resister RY17-2W-12KΩ±5%-20-C-A R626...
  • Page 46 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark C101 0094201251 Capacitor CD110-50V-4.7μF-M-05-F-A C563 0094201389 Capacitor CD288-160V-330μF-M-05-E-A C562 0094202156 Capacitor CD287-250V-22μF-M-05-E-A C507 0094201723 Capacitor CD293-450V-150μF-M-10-G-A C703 0094201379 Capacitor CL11-50V-4700PF-J-05-C-A C414 0094201380 Capacitor CL21X-50V-0.47μF-K-07-C-A C445 0094201381 Capacitor CL21X-50V-0.047μF-K-05-C-A C102 0094201104 Capacitor CL21X-50V-0.1uF-F5-K-05-C-A C412...
  • Page 47 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark XS261 0090400243 Wire JT5391-C0058Q XZ601 0094300121 CRT Socket GZS8-6-5A TP101 0094300026 Connect housing TJC2-1A TP202 0094300026 Connect housing TJC2-1A TP201 0094300026 Connect housing TJC2-1A TP601 0094300026 Connect housing TJC2-1A XZ500 0094300063 Connect housing TJC2-2A...
  • Page 48 List of Parts Location Naterial Code parts Name Type Q'ty(Unit) Remark 0090100115 Heatsink MTBT2001BC--Q 0094400357 IC L7812CV 0090600012 Screw SJ2824-87 ST3*8F 0094002326 brack assembly BJA5022-----Q 0090200266 bracket MTAC0043AC--Q 0090600013 Screw SJ2825-87 ST3*12F 0090200268 FBT holder MTAC0044AC--Q 0090200361 plastic board MTAH2001AA--Q 0090600015 Screw SJ2824-87 ST4*12F 0090200249 Power-Switch cap...

  • Page 49: Damageable Parts List

    Damageable Parts List Damageable Parts List Location Material code Part name Type Q’ty Reparation F501 0094000150 Fuse T2.5A/250V A101 0094000444 Tuner TDQ-3B6HR-IEC-38.9 0094000809 Remote controller HYF-30A R558,R55 0094101006 Resister RF10-1W-1Ω±5%-15-C-A XZ601 0094300121 CRT Socket GZS8-6-5A N101 0094400314 LA7910 N201 0094400343 TB1238AN 0094400357 L7812CV...

  • Page 50: Information Of Resistors And Capacitors

    Information of Resistors and Capacitors 17. Information of Resistors and Capacitors CAPACITORS RESISTORS & CAPACITORS-PARTS NO.CODE Notes: 1.part numbers are indicated on most mechanical parts. Please use this part number for parts orders. 2.The unit of resistance is (ohm).K=1000 ,M=1000K 3.The unit of capacitance is F(microfarad).

  • Page 51: Terminal View Of Transistors

    Terminal view of transistors Terminal view of transistors KSC815-YTA KSR1010TA KSA539-YTA KSR2010TA 2SD18887YD BC548-CTA KSC2331-YTA...
  • Page 52 Sincere Forever Haier Group Tel: 86-532-8938356 Web site: http: //www.haier.com...

Table of Contents