Nad S 300 Service Manual

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CONTENTS FRONT PANEL / REAR PANEL VIEW................................... 3 SPECIFICATIONS................................................... 4 EXPLODED VIEW.................................................. 29 EXPLODED VIEW PARTS LIST....................................... 30 PACKING DIAGRAM................................................ 31 ALIGNMENT PROCEDURE / ALIGNMENT POINTS........................ 5 WIRING DIAGRAM.................................................. 6 PCB LAYOUT...................................................7-12 SCHEMATIC DIAGRAM............................................13-21 IC BLOCK DIAGRAM................................................ 22 ELECTRICAL PARTS LIST.........................................23-28 SERVICE SAFETY PRECAUTIONS 1. Replacing the Fuses 2. Safety-check out (North American model only) CAUTION: NOTE:FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE OF FUSE. Parts marked with the symbol are critical with regard to the risk of fire and electric shock. Replace only with parts recommended by the manufacturer. Before returning the product to the customer, make leakage current or resistance measurements to determine that exposed parts are acceptably insulated from the supply circuit. REFERENCE NO. PART NUMBER DESCRIPTION F1*AH 5100-2510-1C Fuse 250mA 250V Time Lag UL/CSA F2*AH 5120-0061-0 Fuse 12A 250V Time Lag 6.3x32mm UL/CSA F1*C 5120-0035-0 Fuse 100mA 250V Time Lag LBC VDE/SEMKO F2*C 5120-0025-0 Fuse 6.3A 250V Time Lag HBC VDE/SEMKO *AH : North American model only *C : European model only ! 2

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The graphic symbol of a lightning flash with an arrow point within a triangle signifies that there is dangerous voltage within the unit and it posses a hazard to anyone removing the cover to gain access to the interior of the unit.Only qualified service personnel should make such attempt. The graphic symbol of an exclamation point within an equilateral triangle warns a user of the device that it is necessary to refer to the instruction manual and its warnings for proper operation of the unit. REAR PANEL CONNECTIONSFRONT PANEL CONTROLS 1. POWER SWITCH 4. VOLUME CONTROL 7. TAPE MONITOR INDICATOR 2. INFRA-RED RECEIVER 5. INPUT SELECTOR 8. INFRA-RED INDICATOR 3. TAPE MONITOR 6. INPUT INDICATOR 9. POWER INDICATOR 1. RIGHT BALANCED CD INPUT 6. LEFT TAPE INPUT/OUTPUT 11. AC INLET 2. RIGHT VIDEO INPUT 7. LEFT TUNER INPUT 12. LEFT SPEAKER OUTPUT 3. RIGHT AUX INPUT 8. LEFT AUX INPUT 13. GROUND TERMINAL 4. RIGHT TUNER INPUT 9. LEFT VIDEO INPUT 14. RIGHT SPEAKER OUTPUT 5. RIGHT TAPE INPUT/OUTPUT 10. LEFT BALANCED CD INPUT 15. NAD LINK INPUT/OUTPUT FRONT PANEL / REAR PANEL VIEW 1234 5 678 910 11 12 13 14 15 Dual Mono Integrated Amplifier S300 NA D TAPE MONITOR TUNER IRCD AUX VIDEO 123456 7 8 9 3

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