Nad S 100 Service Manual
This is the 3 pages manual for Nad S 100 Service Manual.
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Extracted text from Nad S 100 Service Manual (Ocr-read)
Page 1
Service Tip S100 Led brightness change PROBLEM: Some leds are brighter than others. CAUSE: Variation in led brightness. SOLUTION: Adjust current in leds to give even brightness by changing resistors. Change R477 from 2K67 or 2K74 to 3K. Change R533 from 18k or 9k1 to 6k2. PRODUCTION: This modification has been implemented in production from serial number:1635 Contact: NAD Electronics International 633 Granite Court Pickering, ON Canada L1K 3K1 Voice: 905-831-0799 FAX 905-837-6357 NAD@www.NADelectronics.com
Page 2
Service Information Circuit Change PROBLEM: A DC VOLTAGE IS PRESENT ON THE PREAMP OUTPUT WHEN THEPHONO IS SELECTED CAUSE: DC OFFSET OUT OF RANGE FOR DC SERVO CIRCUIT SOLUTION: REPLACE R33 & R34 ON THE RIAA MODULE FROM 19.6 K OHM TO 10.0 K OHM METAL FILM AT 1 % TOLERANCE PRODUCTION: THIS CHANGE WAS NOT IMPLEMENTED IN PRODUCTION Contact: NAD Electronics International 633 Granite Court Pickering, ON Canada L1K 3K1 Voice: 905-831-0799 FAX 905-837-6357 www. nadelectronics.com