Related Manuals for Haier TN201AUV
Summary of Contents for Haier TN201AUV
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Page 1: Service Manual
HAIER Color Television Service Manual PART # AC-8888-04 HAIER AMERICA TRADING, LLC www.haieramerica.com... -
Page 2: Table Of Contents
Table Of Contents Contents TN201AUV/TN131AUV Color TV Receiver TN201UV Using Manual TN201AUV Alignment WORKING METHOD OF HIGH VOLTAGE PROTECTION CIRCUIT OF TN201AUV CRT... -
Page 3: Tn201Auv/Tn131Auv Color Tv Receiver
Technical Notes I. General information TN201AUV 21 inch NTSC-M color TV receiver uses the single main chip LA76814, which is controlled by 12C bus, and the CPU chip is LC86F3348. This type of machine provides CCD and V-CHIP function and many other expended function, and enables high performance on the single PCB motherboard. - Page 4 of LA7687 and LA7688. It's a powerful chip and could be used in a wide range of circuits. b) This chip can accomplish the following tasks: graphic audio intermediate frequency amplifying, graphic demodulation, accompany audio intermediate frequency amplifying, graphic demodulation, video amplifying, color decoding and work as a frame and line pulsate.
- Page 5 IV. Notes for using the machine Please read and remember the contents of the user's manual and the warnings on the back cover of TV set carefully before using the machine, especially the safety instructions. Keep the set away from heaters, ovens or such heating equipment. Keep well ventilated.
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Page 6: Tn201Uv Using Manual
TN201UV Using Manual Connect the power plug to power socket (AC120V), connect the signal source, press the power button, the red power indicator comes on. For the following operations, follow the instructions: Graphic menu Press 'MENU' to call out the menu, press 'CH+' or 'CH-' to call out 'VIDEO' subdirectory, select the 'CONTRAST', 'BRIGHT', 'COLOR', 'SHARP', 'TINT' options, and press 'VOLUME+' or 'VOLUME-' to adjust the above items. -
Page 7: Tn201Auv Alignment
TN201AUV Alignment The alignment and test processes should be taken under the standard NTSC-M audio and video conditions, and there should be V-CHIP and CCD contents in the test signal. If alignment: 1. Test equipments: a. 45.75MHz sweep generator b. AC 120V/60Hz power supply (with short and over current proof) c. - Page 9 Adjusting focusing voltage and raster voltage: 1. Input white field signal, press 'SCAN' key of the alignment remote controller to turn the raster to a bright line. Adjust the potential regulator of FBT to turn down the line to just visible, press the 'SCAN' key again. 2.
- Page 10 CRB/W Test mode: 0=normal, 1=dark field, 2=bright 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 VDLBL Video demodulation output range 0=small, 1=large...
- Page 11 Green stop potential 0-255 Preset 127,adjust 250 Blue stop potential 0-255 Preset 127,adjust 220 Set the above items to medium position and then press 'SCAN', adjust the Raster potential regulator until the bright line on the screen turns to a dark line, which is just visible.
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Page 12: Working Method Of High Voltage Protection Circuit Of Tn201Auv Crt
WORKING METHOD OF HIGH VOLTAGE PROTECTION CIRCUIT OF TN201AUV 1. The working method The electrical level masters the high voltage control system of this model of the 34 pin of the main decoding chip˙LA76814, when the 34 pin output High voltage, LA76814 cuts the line square-wave output on 27... - Page 13 R471 Cement resistor RX27-5W-3.9Ω-J Xinyang, Jiangsu R434 Oxide film resistor RY17-2W-3.3KΩ±5% Yongxing, Sichuan R412 Carbon film resistor RY13-1/6W- No.6 Component 8.2KΩ±5% electro. Firm, Zibo VD412 Stabilizer diode H27L1/KEL-7V5B1 Electronic Component factory, Leshan VD551 Regulator diode EU3A/RU3A Electronic Component factory, Leshan III.
- Page 14 work, no high potential of enlarging the capacitor generate reverse capacity, does not and no X-ray exists. take effect on the X-ray. JF0510- When T471 does not work, no high potential T471 Line output 191129 generate and no X-ray amplifier exists.
- Page 15 through VD511, C561 and directly discharge to the ground, thus, main voltage will not exist, no X-ray will generate.