Samsung ML-6050 Service Manual

Also see for ML-6050: Product guide User guide Service manual User manual

Contents

Reference InformationSamsung Electronics 3-33-2-2. Tools for Chip ReplacementThe tools for chip replacement are as follows:· Thin tip type soldering iron.· Small flat-blade tip type soldering iron· Special desoldering tip iron· Air-blower Unit· Flat Package Pick-up· Flux that can be cleaned by water· 0.3mm thin solder that can be cleaned by water· Desoldering wire· Tweezers3-2-3. Chip Resistor and Chip CapacitorsTYPESThe types of chip resistors and chip capacitor are asfollows:· Thick Film Chip Resistors· Carbon Film Chip Resisters· Metal Film Chip Resisters· Chip Ceramic Capacitors· Chip Trimming ResistersREMOVING1. Using Two soldering irons:a. Use thin tip soldering ironsb. Use soldering tip temperature of about 280oC.c. Simultaneously heat both ends of the part.d. While heating, grasp the part with the tips of thesoldering irons and remove it.e. Use desoldering wire to completely remove theold solder from the part location on the board. Aclean pattern for installing the new part is veryINSTALLING1. Clean the area where the new part is to be mount-ed.2. Apply a water soluble flux.3. Set part correctly into position and prevent is fromshifting.4. Bring the soldering iron tip close to the part contactwithout actually touching it. Melt thin (0.3mm) sol-der between the tip and part so that it flows intothe part contact.5. Check work quality with a magnifying lens.3-2-4. Chip Tantalum Capacitors andChip filtersTYPESThe types of chip tantalum capacitors and chip filtersare as follows:· Chip Inductors· Chip Tantalum Capacitors· Chip Tantalum Electrolytic Capacitors· Chip Aluminum Electrolytic Capacitors· Chip Transformers· Chip FiltersREMOVING1. Using a special desoldering iron:a. Select soldering tip according to part size.b. Bring the tip into contact with the solder points.c. When the solder melts, remove the part.d. Remove the old solder with desoldering wire.2. Using a special desoldering iron:a. Use small flat-blade tips.b. Heat both ends of the part simultaneously.c. When the solder melts, grasp and remove thepart with the soldering iron tips.