NAD S-170 free download

File name S-170.pdf

S170 SERVICE MANUAL A/V SURROUND SOUND PREAMPLIFIER SOUND PREAMPLIFIER A/V SURROUND S170 PRODUCT SAFETY SERVICING GUIDELINES CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN VOLTAGE MEASURE MUST NOT EXCEED 75 VOLTS R.M.S. ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS THIS CORRESPONDS TO 0.5 MILLIAMP AC ANY VALUE WITHOUT MANUFACTURER'S APPROVAL. UNAUTHORIZED EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY. MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER. WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION FROM AC LINE SHOCK. SAFETY CHECKS SUBJECT : GRAPHIC SYMBOLS AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN CORRECTED. A CHECK SHOULD BE MADE OF THE EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE USER TO THE FOLLOWING. PRESENCE OF UNINSULATED "DANGEROUS VOLTAGE" WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO SUBJECT : FIRE & SHOCK HAZARD CONSTITUTE A RISK OF ELECTRIC SHOCK. 1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS SUCH A WAY AS TO AVOID POSSIBILITY OF ADJACENT INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE COMPONENT SHORTS. THIS IS ESPECIALLY IMPORTANT LITERATURE ACCOMPANYING THE APPLIANCE. ON THOSE MODULES WHICH ARE TRANSPORTED TO AND FROM THE REPAIR SHOP. 2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE SUBJECT : TIPS ON PROPER INSTALLATION DEVICES SUCH AS INSULATORS, BARRIERS, COVERS, 1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, SHIELDS, STRAIN RELIEFS, POWER SUPPLY CORDS, AND CUBBYHOLE OR CLOSELY FITTING SHELF SPACE. OVER OTHER HARDWARE HAVE BEEN REINSTALLED PER OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED ORIGINAL DESIGN. BE SURE THAT THE SAFETY PURPOSE AIR FLOW. OF THE POLARIZED LINE PLUG HAS NOT BEEN DEFEATED. 2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: 3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A COLD SOLDER JOINTS, SOLDER SPLASHES OR SHARP FACTOR, NEAR STEAM RADIATORS WHERE STEAM SOLDER POINTS. BE CERTAIN TO REMOVE