Samsung CS29A5HT8X/BWT General Alignment Instructions, Automatic Degaussing, High voltage Check

Page 13

Alignment and Adjustments

4. Alignment and Adjustments

4-1 General Alignment Instructions

1.Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus.

2.Observe the picture for good black and white details. There should be objectionable color shading; if color shading is present, demagnetize, perform purity and convergence adjustments described below.

3.Use the specified test equipment or its equivalent.

4.Correct impedance matching is essential.

5.Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV. When inserting signal markers, do not allow the marker generator to distort test results.

6.Connect the TV only to an AC power source with voltage and frequency as specified on the backcover nameplate.

7.Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts.

8.To protect against shock hazard, use an isolation transformer.

4-2 Automatic Degaussing

A degaussing coil is mounted around the picture tube, so that external degaussing after moving the TV should be unnecessary. But the receiver must be properly degaussed upon installation.

The degaussing coil operates for about 1 second after the power is switched ON. If the set is moved or turned in a different direction, the power should be OFF for at least 10 minutes.

If the chassis or parts of the cabinet become magnetized, poor color purity will result. If this happens, use an external degaussing coil. Slowly move the degaussing coil around the faceplate of the picture tube and the sides and front of the receiver. Slowly withdraw the coil to a distance of about 6 feet before turning power OFF.

If color shading persists, perform the following Color purity and Convergence adjustments.

4-3 High voltage Check

CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +135 volts (with full color- bar input and normal picture level).

1.Connect a digital voltmeter to the second anode of the picture tube.

2.Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current).

3.Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 32 KV under any conditions.

Samsung Electronics

www.rtv-horvat-dj.hr

4-1

 

Page 12 Page 14
Image 13
Page 12 Page 14
Contents Chassis KS3AP REV Model CS29A5HT8X/BWT Color Television ReceiverWire Cord Safety PrecautionsPlug Reversed Samsung Electronics Servicing Precautions Precautions for Electrostatically Sensitive Devices ESDs Tables of Abbreviations and Acronyms Reference InformationTable of Acronyms Board LOC. no Spec Description IC Line UpCRT Board LOC. no Spec Description Remark MainFocus PIPTCLS3101PD09AS Spec Function RemarkTCPS3001PD09DS TCPS3001PD09ES Function Remark Specifications Automatic Degaussing General Alignment InstructionsHigh voltage Check Screen Adjustment Dynamic Focus AdjustmentIbrm White Balance Adjustment E2PROM IC902 ReplacementService Mode Factory AdjustmentOSD Memory Data2B Screen Change I2C BUS Geometric Adjustment ~255 PALSoft Limit Slope B 2D Video 2 AdjustDolby When PIP is 2-TunerTuner Scart + SSlice Level 5 5 5 Assign Description IN/OUTAssign IN/OUT Active H/L Description OFF No PowerIC201S VDP FBTNo Picture No Sound BADGE-BRANDAL,SS,SILVER,L65,R2000 INDICATOR-LED-,295A,-,ACRYL,-,CLRWINDOW-REMOCON-,725A,-,PC,-,VIOLET KNOB-CONTROL-,725A,-,ABS,HB,GRAYCS29A5HT8X/BWT TU01S C841 AL1uF,20%,50V,WT,TP,5x11,5 DZ603 C840 AL10uF,20%,25V,WT,TP,5x11,5 DZ602C901 DZ605INDUCTOR-RADIAL10uH,10%,6x4mm R407 L904L905 R409ASSY-PCB SUB,AUTO AA95-00840A ,V ICG01DZF01 HOLDER-,P-CORD,PP,VO,BLK,KE-002 Assy Chassis PARTKS3A,295ALDY01 DZY01 ASSY-PCB SUB,AUTO AA95-00681A ,VDZY02 CF+AVBOT CZ21A8VW8X/ELSBotz ASSY-PCB Robot AA94-02037Z ,ERC308 FILM,MPEF470nF,5%,63V,TP-,5mm C654 C307 AL100uF,20%,50V,GP,TP,8x11.5,5 C652C402 AL470uF,20%,25V,GP,TP,10x16,5 C657 C404 AL470uF,20%,25V,GP,TP,10x16,5 C702IC HYBRID-,DRGB001A,SIP,5P,-,TP DIODE-RECTIFIERRU20A,600V,1.5A,-,TPR223 R514R520 R524CLAMP-FBTABS,V0,BLK Assy Cabinet FrontSTOPPER-PCB501H,HIPS,NTR,HB BackAA59-00104A REMOCON-,TM59,DREAM,29,L/GRAY,-,EX,PA CLAMP-D,COILNYLON 66,V0,-,-,21A8Block Diagrams Horvat-dj.hr KEY3 KEY2 KEY1STD GNDRTV servis Horvat Dj.hr Horvat TP26 TP33 TP35 Samsung Electronics 10-5 10-6 CRT, Side AV, Video Switch Samsung Electronics 10-7 Double FOCUS, Control
Top Page Image Contents