Yamaha YST-SW011 Service Manual

Also see for YST-SW011: Owner's manual Owner's manual Service manual

Contents

YST-SW0112YST-SW011WALLOUTLET EQUIPMENTUNDER TESTAC LEAKAGETESTER OREQUIVALENTINSULATINGTABLE TO SERVICE PERSONNEL1. Critical Components InformationComponents having special characteristics are marked sand must be replaced with parts having specifications equalto those originally installed.2. Leakage Current Measurement (For 120V Models Only)When service has been completed, it is imperative to verifythat all exposed conductive surfaces are properly insulatedfrom supply circuits. Meter impedance should be equivalent to 1500 ohmsshunted by 0.15μF.“CAUTION”“F1: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 1.6A, 125V FUSE.”CAUTIONF1: REPLACE WITH SAME TYPE 1.6A, 125V FUSE.ATTENTIONF1: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 1.6A, 125V.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and /or plastic(where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency(and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REA-SON WHATSOEVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands beforehandling food. Leakage current must not exceed 0.5mA. Be sure to test for leakage with the AC plug in both polarities.About Lead Free Solder /Side ASide BSMT REFLOW ProcessMI FLOW ProcessSolder DipAmong some types of lead free solder currently available,it is recommended to use one of the following types for therepair work.• Sn + Ag + Cu (tin + silver + copper)• Sn + Cu (tin + copper)• Sn + Zn + Bi (tin + zinc + bismuth)1. As the melting point temperature of the lead free solder isabout 30°C to 40°C (50°F to 70°F) higher than that of the leadsolder, be sure to use a soldering iron suitable to each solder.2. If lead solder must be used, be sure to remove lead free solderfrom each terminal section of the parts to be replaced andfrom the area around it completely before soldering, or makesure that the lead free solder and lead solder melt togetherfully.The P.C.B.s installed in this unit are soldered using thefollowing solder.MAIN P.C.B.SIDE A /-SIDE B /Lead Free Solder /