QSC K8 - Page 47

47
TD-000487-00
K Series Service Manual
PC-003311-00 K-SERIES BOARD - BOTTOM SIDE - REV. D
DATE: JULY 22th, 2011
REV.: B
SHEET 2 OF 3
CH1 SWITCHING
Q4: POSITIVE; Q5 NEGATIVE
CH2 SWITCHING
Q2: POSITIVE; Q3 NEGATIVE
TEMP-TO-VOLT SENSOR
U9: PIN1 = V+, PIN2 = VO; PIN3 = GND
RECTIFIER DIODES
D33: POSITIVE; D34 NEGATIVE
PSU SWITCHING
Q14: MAIN SWITCHING FET
Q5 ACTIVE CLAMP FET
J3 PINOUTS (2-WAY)
1: CH2 OUT- (YEL); 2: CH2 OUT+ (YEL/BLK)
7: CH1 OUT- (GRN); 8: CH1 OUT+ (GRN/BLK)
9: LED+ (WHT); 10: LED- (BLK)
3, 4, 5, 6: N/C
J3 PINOUTS (SUB)
1: CH2 OUT- (YEL); 3: CH2 OUT+ (YEL/BLK)
7: CH1 OUT- (GRN); 8: CH1 OUT+ (GRN/BLK)
9: LED+ (WHT); 10: LED- (BLK)
2, 4, 5, 6: N/C