Related Manuals for Haier TV-8888-30
Summary of Contents for Haier TV-8888-30
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Page 1: Service Manual
HAIER COLOR TELEVISION SERVICE MANUAL PART # TV-8888-30 HAIER AMERICA TRADING, LLC www.haeiramerica.com... -
Page 2: Table Of Contents
TABLE OF CONTENTS Product Code Explanation and Series Introduction Features Safety Precautions Warning and Cautions 6 – 7 General Servicing Precautions 8 – 13 Net Dimension Parts and Functions Remote Controller Function Program Diagram Maintenance Service and Troubleshooting 18 – 21 Circuit Diagram Circuit Block Diagram Circuit Explanation... -
Page 3: Product Code Explanation And Series Introduction
PRODUCT CODE EXPLANATION AND SERIES INTRODUCTION... -
Page 4: Features
FEATURES MODEL MODEL ITEM FUNCTION ITEM FUNCTION 2190 9708 Main IC 76814 Digital curtain × Slow fading on & off × Color system NTSC Semitransparent menu × PICTURE SOFTWARE Audio Non-flashing channel changing × system Number of ZOOM × channels E F S 16:9 mode ×... -
Page 5: Safety Precautions
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE These parts identified by many electrical and mechanical parts in this chassis have specific safety-related characteristics. It is essential that these specific safety parts 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 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 leave the TV set benzene, petrol and other chemicals. - Page 7 Explanation on the display tube Generally, it is not required to clean the tube surface. However, if necessary, its surface can be cleaned with a dry cotton cloth after putting off the power. Don’t use any cleanser. Avoid using a hard cloth; the tube surface will be damaged. CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS.
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Page 8: General Servicing Precautions
GENERAL SERVICING PRECAUTIONS 1. Always unplug the receiver AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board module or any other assembly of the receiver. b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection. - Page 9 Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components are usually called Electrostatically 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 General Soldering Guidelines 1. Use a grounded-tip, low-wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range of 500 F to 600 2. Use an appropriate gauge of RMA resin-core solder composed of 60 parts tin/40 parts lead.
- Page 11 Replacement Carefully insert the replacement IC in the circuit board. Carefully bend each IC lead against the circuit foil pad and solder it. Clean the soldered areas with a small wire-bristle brush. (It is not necessary to reapply acrylic coating to the areas). “Small-Signal”...
- Page 12 Fuse and Conventional Resistor Removal/Replacement 1. Clip each fuse or resistor lead at top of the circuit board hollow stake. 2. Securely clamp the leads of the replacement component around the notch of the top stake. 3. Solder the connections CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures.
- Page 13 Carefully clamp and solder the connections. CAUTION: Ensure the insulated jumper wire is dressed so that it does not touch components or sharp edges.
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Page 14: Net Dimension
NET DIMENSION 14.4 13.8 13.1... -
Page 15: Parts And Functions
PARTS AND FUNCTIONS... -
Page 16: Remote Controller Function
REMOTE CONTROLLER FUNCTION... -
Page 17: 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 (1). -
Page 18: Maintenance Service And Troubleshooting
MAINTENANCE SERVICE AND TROUBLE SHOOTING Vertical and horizontal scan adjustment: 1. Input digital figure signal (5-circle figure). 2. Press ‘GEO’ key of the alignment remote controller to call out the scan parameter menu as follows: DESCRIPTION RANGE REFERENCE H.PHASE Horizontal phase 0-30 16-17 V.POSI... - Page 19 Test mode: 0=normal, 1=dark field, 2=bright CRB/W field 3=cross figure signal HBLKL Left blanking HBLKR Right blanking BSHLD ABL door limit EMABL Emergency ABL remove switch:0=on, 1=off MDSTP Use brightness to release ABL, 0=off,1=on FMLBL FM output accuracy BRABL Brightness ABL switch 0=off, 1=on Video demodulation output range 0=small, VDLBL 1=large...
- Page 20 Set the above items to medium position and then press ‘SCAN’, adjust the raster potential regulator until the bright line on the screen turns down to a dark line, which is just visible. Adjust using the following keys until the line turns white {1 (RB+)/2 (RB-) 3 (GB+)/4 (GB-) 5 (BB+)/6 (BB-)}, and then press ‘SCAN’...
- Page 21 1. No Light No light and sound Check to see if Fuse 3 is normal Abnormal Normal Check to see 103V etc. Check VD504, C507, Voltage is normal V513, etc Normal Abnormal Check to see if the Test to see all terminal collector voltage of Resistance of load VD554 is 18V...
- Page 22 B901 XS601 XP601 3W16OHM CRT BOARD SCN3-2Y TJC3-2A R907 R902 2SJ10K V902 A101 2SC2688 TDC-XXX C903 C612 C611 CJ56R R904 16V470 0.01 C606 C605 VD901 R908 R604 V603 16V470 16V470 1/2SJ2.7K 4.7K R718 R906 2SJ10K C901 R917 C608 R801 R832 CJ390 110V 2SJ10K...
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Page 23: Circuit Block Diagram
CIRCUIT BLOCK DIAGRAM... -
Page 25: Circuit Explanation
CIRCUIT EXPLANATION IC reference data: 1). N701 (LC86F3248A) Voltage Voltage Function Function R-input 0.06 Connect to 5V 5.03 G-input 0.06 resistor via a Connect to 5V 5.03 B-input 0.07 resistor via a Connect to 5V 5.04 Blank 0.15 resistor via a Connect to 5V via a 5.03 n.c. - Page 26 2). N101 LA76814K Voltage Voltage Function Function Audio output 2.23 FBT input 1.06 FM output 2.23 Interference 1.69 IF AGC filter 2.22 Clock output 0.002 RF AGC 2.59 n.c. 0.002 PIF AMP input 1.30 OSD gain control 3.05 PIF AMP input 2.83 IF ground 2.83...
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Page 27: Adjustment
ADJUSTMENT IF Alignment: Test equipment: a. 45.75MHz sweep generator b. 15V/3A DC power supply (with short and over current proof) c. Digital multi-meter d. Alignment tool f. User Remote controller g. Service remote controller h. Video signal generator i. Multi-system adjustment tool j. -
Page 28: Information Of Resistors And Capacitors
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 Ω (ohm). K=1000Ω, M=1000KΩ 3.The unit of capacitance is µF (microfarad). 1pF=10-6µF. Numbering system of Capacitor Example CL42 ----- 17 ---- 50V ---- 2F4 ---- 104 *-- Z... -
Page 29: Abbreviation Of Part Name And Description
ABBREVIATION OF PART NAME AND DESCRIPTION PART NAME & DESCRIPTION TYPE ALLOWANCE Carbon ±1% Solid ±5% Metal ±10% Oxide ±20% Fuse ±2% CAPACITORS PART NAME & DESCRIPTION TYPE ALLOWANCE Ceramic ±5% Ceramic ±10% Film ±15% Electrolytic ±20% Tantalum +100%-0% +80%-0% RESISTORS... -
Page 30: Terminal View Of Transistors
TERMINAL VIEW OF TRANSISTORS...