IMPORTANT SAFETY INSTRUCTIONS This lightning flash with arrowhead symbol, within The exclamation point within an equilatereal triangle is an equilateral triangle, is intended to alert the user to intended to alert the user to the presence of important the presence of uninsulated “dangerous voltage” operating and maintenance (servicing) instructions in within the product’s enclosure that may be of sufficient the literature accompanying the appliance.
In order to maintain consistent audio sound quality and performance replace preamplifier tubes in the xs400, xs400t, xs400h, xs800h, the DynaBass Series (400, 400t, 400h and 800h) with Yorkville specified and sorted 12AX7 tubes (Yorkville Sound part number “12AX7SORTED”). The specified tubes are chosen for their combined attributes of low noise, high gain and no microphonic feedback.
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Pour préserver une qualité et une performance audio constante remplacez les lampes de préamplificateur des appareils suivants avec des lampes désignées 12AX7 Yorkville assortis (Numéro de pièces Yorkville Sound “12AX7SORTED”): xs400, xs400t, xs400h, xs800h, Le Series DynaBass (400, 400t, 400h et 800h).
Spécifications Type Amplificateur pour basses Puissance @ impédance min.(watts) 600 @8 ohms / 800 @4 ohms / 600 @2 ohms Impédance minimum (ohms ) Puissance d’éclatement - 2 cycles 1000 Watts Réponse en fréquence (Hz +/-3dB) 20hz - 20khz Bruit et Bourdonnement (dB) -90dB Non-Pondéré/ -94db A Pondéré...
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Block Diagram for DynaBass 800H D E S I G N E D A N D M A N U F A C T U R E D B Y Y O R K V I L L E S O U N D Input Preamp Tube...
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MJ21196 MJ21195 3722 TIP107 MJE15032 IRF3205 MPSA13 MJE15033 IRF4905 MJE340 6882_PC MPSA63 MPSA56 MJE350 BC550C 2N5401 MPSA06 BC560C 2N5551 K1:B 2N5401 6889_PC R101 R102 R103 6745_PC 220K BOTTOM 1N750ARL MINI MINI MINI VIEW 4148 E B C C B E E B C E C B G D S...
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U4:A 470P MINI 4K99 TL072 1/4W 4148 R130 R122 1/4W 1/4W 10K0 470K TL072 MINI MINI R128 1/4W 1/4W TL072 TL072 U1A:B 10K0 470N 470N 470N 1/4W MINI 4148 U4:C U1A:C R129 IN FROM M1341 1/4W U4:B U1A:A 220N PRE-AMP BOARD 10K0 MINI 100P...
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Into Wave ETCH BlankSize - 17475x9250 ETCH GUIDE GUIDE Pcb Mech Top Assy M1340 V1.00 Pos Driver Set P1 for 8mV Pin 1 between TP1 and TP2 681R DB800H NL4MP-1 NL4MP-1 BAV21 3628 3628 M1340 3580 BAV21 220R0 R128 4K99 V1.00 R129 6874...
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SEE LAYOUT DIAGRAM M1340 HISTORY M1340 DRILL HISTORY M1340 PRODUCTION NOTES MODEL(S):- MODEL(S):- DB800 DB800 DATE VER# DESCRIPTION OF CHANGE DATE VER# DESCRIPTION OF CHANGE 1 - MOUNT Q12,Q13,Q26,Q27 SCREWS FROM THE TOP OCT-16-2006 1.00 DERIVED FROM M1204 XS800 AUG-27-2007 Updated for L1 hole size to 78mil, moved route for chas' screws JUL-10-2007 REMOVED HEX ROUTE FOR XISTORS, USE #8783 BOLT...
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SEE LAYOUT DIAGRAM M1341 PRODUCTION NOTES PCB Ref. S1, YS Part #3423 1- #6554 LED is Rad pattern, but hand inserted. All are fixed. 2- CUT METAL PIN ON XLR #3923 AS SHOWN 3- USE POT JIG TO LINE UP POTS 4- INSERT PUSHBUTTON KNOB ON SWITCH S1 BEFORE INSERTING INTO PCB.