QSC cx 902 Schematics

Page 1

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THIS DOCUMENT CONTAINS PROPRIETARV
INFORMATION WHICH IS THE PROPERW
OF 050 AUDIO PRODUCTS. THAT MAY NOT
BE DISCLOSED. REPRODUCED OR USED
WNNOUY EXPRESS WRITTEN CONSENT FROM
USE AUDIO PRODUCTS.
D
POS STEP Pos STEP
INPUT 7 HLTER INPUT 7 FILTER
THERMAL POSITIVE THERMAL POSITIVE
SENSING OUTPUTS SENSING OUTPUTS
GAIN LOOP GAIN CURRENT SPKR GAIN LOOP GAIN CURRENT SPKR
POT FEEDBACK SPLITTER OUTPUT POT FEEDBACK SPLITTER OUTPUT
LED CLIP NEGATIVE BR MONO ROUTING NEGATIVE
DISPLAY LIMITING OUTPUTS OUTPUTS
CHANNEL A LED CL: C
NEG STEP AUDIO CIRCUITS DISPLAY LIMITING NEG STEP CHANNEL 3
AUDIO CIRCUITS
SHEET 2 SHEET 3
POWER EMI INRUSH AC MAIN ICET GATE
OPAMP SUPPLY FILTER RELAY RECT FILTERS SWITCHES I DRIVE
SUPPLIES DATAPORT
BLEEDERS
CIRCUITRY f f
CH A
HD_15 RELAY HIGH FREO SWITCHING
DATAPORT CONTROL TRANSFORMER OSCILLATOR
DC FAULT THERMAL To MUTE CONNECTOR BIAS B
SHUTDOWN SHUTDOWN CONTROL DATAPORT SUPPLY
CIRCUITRY ISOLATED
CH E HIGH FREO
FAN SPEED SHUTDOWN RECTIFIERS. g
OVERCURRENT FILTER CAPS g
SUPPORT. TRIGGERS DETECTION 8
PROTECTION SWITCHING 8
AND DATAPORT POWER I
CIRCUITS SUPPLY g
s
SHEET 4 SHEET 5 i E
TABULATION BLOCK 9;
DASH N0- F1 A R321. 322. 326, 328 /2\ %
-Oe (I2ev) 25A. 125V 487K
-O1 (IDOV) 30A. 125V 392K
-02 (230V) 15A 250V 487K
m IITEMNQ I mm mam I VENDOR
PARTS LIST
comm).
:fiiéoitiififiiifg Q9 AUDIO PRODUCTS. INC. A
'DSIrosgém'gglg 5 COSTA MESA. CALIFORNIA
mm mws ANGLES
XX = r MTV M SCHEMATIC DIAGRAM
:13;sz 0" R W PAT OLILTER 5715798
mm
2 COMPONENTS WITH VALUE PREFIXED WITH A .2. REPRESENT SMT COMPONENTS R- PLUM HHS CX902
1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-OIBDOI-xx. WPTB'BM'TXX CX 9 Ns 'Smr SHOOK 2 ID 95 5' mm MNDSH-e18061-60 V
m 5:. gm
NOTES: UNI-E53 OTHERWISE SPECIFIED APPLICATION DO NOT SCALE DRAWING wsmm No $314325 2m W NONE I0? "IE N0, smamm ISNFH I or 5
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