Yorkville NX55P-2 - Manuel (Page 14)

ON/OFF
BLOCK-DIAG-NX55P-2-00-2v1.ai
CLIP DETECT
CIRCUIT
INPUT
DIFF AMP
INTEGRA
TED
ERROR AM
P
RAMP
GENERA
TOR
GND
AT
OUTPUT
U9. Q8, U10 LEVEL SHIFT
U6
GA
TE DRIVE
MONO SUM
BUFFERS
100 Hz
60 Hz
1
2 3
-120
U7
100 Hz
LIMITER
LED
60 Hz
HF DRIVER
WOOFER
WOOFER
OUTPUT
TRANSISTORS
OUTPUT FIL
TER
MODEL TYPE:YS1002
HP
HP
60 Hz
BYP
ASS
LP
LP
EQ LP
LP
R47
+24 PHANTOM
1
3
2
LINK
1
3
2
2
3
1
LIMIT
LIMIT
LIMIT
2-TIER
LINEAR AMP
(HORN)
CLASS-D
AMPLIFIER (WOOFER)
*CLASS-D AMPLIFIER (WOOFER)
*BLOCK DIAGRAM LOCA
TED BELOW
NOTE: Shorting R47 will eliminate feedback and audio signal allowing troubleshooting of Level Shift, drivers and output devices
LIMIT DETECT SLOW
LIMIT DETECT F
AST
MIC
LINE / CD LEVEL
MIC LEVEL
LINE / CD
SILENT ON/OFF
RELA
Y
SILENT ON/OFF
RELA
Y
SILENT ON/OFF
VIA Q19
SILENT ON/OFF
RELA
Y
Tone
EQ (2 NOTCHES)
MIXER
Block Diagram for
NX55P-2
DESIGNED & MANUF
A
CTURED BY YORKVILLE SOUND