Page 3
PRODUCT SAFETY SERVICING GUIDELINES FOR NAD PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY SONNEL COVER THE SUBJECT OF X-RADIATION.
NAD S400 ALIGNMENT PROCEDURE FOR NAD S400: EQUIPMENT REQUIRED FOR ALIGNMENT PROCEDURE: Ω • FM RF signal generator capable of 75MHz to 109MHz output @ 75 that can separately modulate left and right channels (Panasonic model # VP-7637A or equivalent) •...
Page 5
NAD S400 Tune the S400 to 108.500 MHz (90.500 MHz for Japan). Looking at the S400 from the front, measure with a DMM at the right hand side of R21 found at position “R6” on the board. Adjust L13 until the tuning voltage is 10.0V DC.
Page 6
NAD S400 With the same oscilloscope setup as in procedure #3, press the ANTENNA button and select ANTENNA port #1. Check that the IF-signal is reduced by a minimum of 40 dB. Connect the signal generator to ANTENNA port #1. With the same oscilloscope setup as in procedure #3, adjust L2 until the IF-signal is at maximum setting.
Page 7
NAD S400 With the audio AC-voltmeter connected as in procedure #9, select 0 db range for both channels. Connect an RF signal generator to ANTENNA port #1 and set to: Amplitude = 65 dBu Pilot tone = on (19 kHz @ 10%) Modulation = 100% (including pilot tone) [1kHz @ +/- 75 kHz L+R and L-R].
Page 8
NAD S400 LEFT RIGHT ANTENNA 2 ANTENNA 1 Unsolder Clip Unsolder Clip...
Page 28
ELECTRICAL PARTSLIST DISPLAYBOARD VALUE DESIGNATOR FOOTPRINT MANUFACT P.N. MANUFACTURER COOR X COOR Y S400FT03.PCB S400FT03.PCB LARSHOLT BLUE LED LED1 RT3-6134-B2S-B RODAN BLUE LED LED2 RT3-6134-B2S-B RODAN BLUE LED LED3 RT3-6134-B2S-B RODAN BLUE LED LED4 RT3-6134-B2S-B RODAN BLUE LED LED5 RT3-6134-B2S-B RODAN HEF4094BP DIP16...
Page 30
S400 S400 POWER CORD NEMA 1-15 POLARIZED 4*AH POW4 POW2 POWER CORD CEE (7) XVII WARRANTY CARD WARR INSTRUCTION MANUAL S400-IM 101-000B NAD LINK CABLE REMOTE CONTROL HANDSET RC S400 AUDIO CABLE 101-000A BATTERIES 1 SET GLOVES GLOVES 1 SET...