COLOR TELEVISION RECEIVER - Tecnicosaurios

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Precautions1-1 Safety Precautions (Continued)9. High voltage is maintained within specifiedlimits by close-tolerance, safety-relatedcomponents and adjustments. If the highvoltage exceeds the specified limits, checkeach of the special components.10. Design Alteration Warning:Never alter or add to the mechanical orelectrical design of this unit. Example: Do notadd auxiliary audio or video connectors. Suchalterations might create a safety hazard. Also,any design changes or additions will void themanufacturerÕs warranty.11. Hot Chassis Warning:Some TV receiver chassis are electricallyconnected directly to one conductor of the ACpower cord. If an isolation transformer is notused, these units may be safely serviced onlyif the AC power plug is inserted so that thechassis is connected to the ground side of theAC source.To confirm that the AC power plug is insertedcorrectly, do the following: Using an ACvoltmeter, measure the voltage between thechassis and a known earth ground. If thereading is greater than 1.0V, remove the ACpower plug, reverse its polarity and reinsert.Re-measure the voltage between the chassisand ground.12. Some TV chassis are designed to operate with85 volts AC between chassis and ground,regardless of the AC plug polarity. These unitscan be safely serviced only if an isolationtransformer inserted between the receiver andthe power source.13. Some TV chassis have a secondary groundsystem in addition to the main chassis ground.This secondary ground system is notisolated from the AC power line. The twoground systems are electrically separated byinsulating material that must not be defeatedor altered.15. Observe the original lead dress, especiallynear the following areas: Antenna wiring,sharp edges, and especially the AC and highvoltage power supplies. Always inspect forpinched, out-of-place, or frayed wiring. Donot change the spacing between componentsand the printed circuit board. Check the ACpower cord for damage. Make sure that leadsand components do not touch thermally hotparts.16. Picture Tube Implosion Warning:The picture tube in this receiver employsÒintegral implosionÓ protection. To ensurecontinued implosion protection, make surethat the replacement picture tube is the sameas the original.17. Do not remove, install or handle the picturetube without first putting on shatterproofgoggles equipped with side shields. Neverhandle the picture tube by its neck. SomeÒin-lineÓ picture tubes are equipped with apermanently attached deflection yoke; do nottry to remove such Òpermanently attachedÓyokes from the picture tube.18. Product Safety Notice:Some electrical and mechanical parts havespecial safety-related characteristics whichmight not be obvious from visual inspection.These safety features and the protection theygive might be lost if the replacement componentdiffers from the originalÑeven if thereplacement is rated for higher voltage,wattage, etc.Components that are critical for safety areindicated in the circuit diagram by shading,( ) or ( ! ).Use replacement components that have thesame ratings, especially for flame resistanceand dielectric strength specifications.A replacement part that does not have thesame safety characteristics as the originalmight create shock, fire or other hazards.14. Components, parts and wiring that appear tohave overheated or that are otherwisedamaged should be replaced with parts thatmeet the original specifications. Alwaysdetermine the cause of damage or overheating,and correct any potential hazards.1-2 Samsung Electronics
Precautions1-2 Servicing PrecautionsWarning1: First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict betweenthe servicing and safety precautions, always follow the safety precautions.Warning2: An electrolytic capacitor installed with the wrong polarity might explode.1. Servicing precautions are printed on thecabinet. Follow them.2. Always unplug the unitÕs AC power cord fromthe AC power source before attempting to: (a)Remove or reinstall any component orassembly, (b) Disconnect an electrical plug orconnector, (c) Connect a test component inparallel with an electrolytic capacitor.3. Some components are raised above the printedcircuit board for safety. An insulation tube ortape is sometimes used. The internal wiring issometimes clamped to prevent contact withthermally hot components. Reinstall all suchelements to their original position.4. After servicing, always check that the screws,components and wiring have been correctlyreinstalled. Make sure that the portion aroundthe serviced part has not been damaged.5. Check the insulation between the blades of theAC plug and accessible conductive parts(examples: metal panels, input terminals andearphone jacks).6. Insulation Checking Procedure: Disconnect thepower cord from the AC source and turn thepower switch ON. Connect an insulationresistance meter (500V) to the blades of the ACplug.The insulation resistance between each bladeof the AC plug and accessible conductive parts(see above) should be greater than 1 megohm.7. Never defeat any of the B+ voltage interlocks.Do not apply AC power to the unit (or any ofits assemblies) unless all solid-state heat sinksare correctly installed.8. Always connect a test instrumentÕs groundlead to the instrument chassis ground beforeconnecting the positive lead; always removethe instrumentÕs ground lead last.Samsung Electronics 1-3
Page 1 and 2: COLOR TELEVISION RECEIVERChassis :M
Page 3: Precautions1. PrecautionsFollow the
Page 7: Specifications and IC Data2. Specif
Page 11 and 12: Alignment and Adjustments3. Alignme
Page 13 and 14: Alignment and AdjustmentsSamsung El
Page 15 and 16: Alignment and Adjustments3-2-3(B) O
Page 17 and 18: Alignment and Adjustments3-3-2 Auto
Page 19 and 20: Alignment and Adjustments3-3-8 Cent
Page 21 and 22: Troubleshooting4. Troubleshooting4-
Page 23 and 24: Troubleshooting4-3 No Vert Scan (Ho
Page 25 and 26: Troubleshooting4-3 No ColorNo Color
Page 27 and 28: Exploded View & Parts List5-2 CT567
Page 29 and 30: 6. Electric Parts List6-1 Dissimila
Page 31 and 32: Electric Parts ListNO. LOC. NO. 20,
Page 33 and 34: 6-4 Samsung Electronics6-2 Part Des
Page 35 and 36: 6-6 Samsung Electronics6-2 Part Des
Page 37 and 38: 6-8 Samsung Electronics6-3 CRT PCB
Page 39 and 40: Electric Parts List6-4 COMB FILTER
Page 41 and 42: Electric Parts List6-7 MONO STEREO
Page 43 and 44: Electric Parts List6-8 SOUND OUTPUT
Page 45 and 46: Electric Parts List6-12 CT567BWX/ST
Page 47 and 48: Electric Parts ListLoc. No. Code No
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MEMO7-2 Samsung Electronics
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PCB Layout8-2 PWB-CRT V/M 8-3 ASSY-
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Schematic Diagrams10. Schematic Dia
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Schematic Diagrams10-3 MAIN 3/4TP16
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Schematic Diagrams10-5 CT766DW ( MA
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Schematic Diagrams10-7 CT766DW ( MA
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