QSC III Series, Technical & Service Manual

11

3350 PCB ASSEMBLY 

WP-335040-TC 3350 MAIN PCB ASSY

WP-335040-TC 3350 MAIN PCB ASSY

Part Number

Description

Reference

Part Number

Description

Reference

RE-230005-BC 30K 1/4W 5% CF

R59

MS-000066-HS HEATSINK, TO-66

Q1, Q2

RE-260401-BM 60.4K 1/4W 1% MF

R31

MS-000220-HS HEATSINK, TO-220 AAVID#5943B Q3, Q4

RE-310005-BC 100K 1/4W 5% CF

R30, R62

MS-350411-HT HEAT TRANSFER BRKT. 

RE-333005-BC 330K 1/4W 5% CF

R28, R29

NW-000220-RW TO-220 RECT. WASHER

D21, D22

SC-060060-PP #6-32 X 3/8" P/P ZINC

Q1, Q2

NW-060010-SL #6 SPLIT TOOTH LOCK WASHER

Q1, Q2, 

SC-062050-PP #6 X 5/16" P/P ZINC

Q5, Q6, 

D21, D22,

Q8, Q9, 

PTC

Q12, Q13,

NW-060400-HN #6-32 BY 1/4" HEX NUT

D21, D22,

Q15, Q16

PTC, PEM

SW-000010-RY MX1500/3500 24V OUTPUT RELAY

NW-060410-ST LCKWSHR-PEM STUD-HEAT XFER BRKT MTG.

XF-200016-CR IND 2UH 16GA AIR

L1, L2

PC-000040-FM MAIN PCB

WC-001102-SQ INSUL.SLV QSC 1102,.6", CLR

PTC

PL-000220-MI

D21, D22

WC-003018-TQ BLUE, FROM HOLE POS. #1&2 TO B4

PL-903125-SP SPACER, ROUND, NYLON 0.047

L1, L2,

WC-003019-TQ BRN., FROM HOLE POS. #3&4 TO B3

R14

WC-003020-TQ RED, FROM HOLE POS. 'P HI' TO B4 'P HI'

PL-905385-SP SPACER RND, NYL #6 0.385"L B LD1, LD2,

WC-003021-TQ GRN, FROM HOLE POS. 'N HI' TO B4 'N HI'

LD3, LD4,

WC-003022-TQ ORG, FROM HOLE POS. 'P LO' TO B3 'P LO'

LD5

WC-003023-TQ YEL, FROM HOLE POS. 'N LO' TO B3 'N LO'

PL-909235-SP HOLDER, LED, 90 DEGREES, NY

LD1, LD2,

WC-003024-TQ BLK, FROM HOLE POS #5 TO #5 NEXT 50K POT

LD3, LD4,

PL-003109-SP OBS-NYLON SPACER 

D21, D22

LD5

NW-060010-SL #6 SPLIT TOOTH LOCK WSHR 25A BRIDGE RECT.

PT-110000-AT TRIM 100

TR1

IC-005532-OP OP DUAL NE5532

PT-220000-AT TRIM 2K

TR2, TR3

LB-100003-SR ON SUBPANEL

QD-001340-LR LED RED T-1 3/4 VREF

LD6

LB-376002-MP ON SUBPANEL

QD-000134-LR LED RED T-1 3/4

LD1, LD2 

MS-350410-HS HEAT SINK

QD-000134-LX LED R/G T-1 3/4

LD5

MS-350472-SP SUBPANEL

QD-000134-LY LED YEL T-1 3/4

LD3, LD4

SC-062120-PP #6 X 3/4" "B" P/P ZINC - 25A BRIDGE RECT

QD-0003.9-ZT ZENER 3.9V .25W DZ84073ID

Z15

PL-003.65-TW TIE WRAP, 4" BLACK ( SMALL)

QD-0004.7-ZT ZENER 4.7V .25W DZ840731E

Z16

PL-000011-TW TIE WRAP, 11" WHITE (LONG)

QD-0007.5-ZT ZENER 7.5V .25W DZ840731F

Z17

PL-090751-RV RIVET, FASTEX ON HEAT SINK

QD-000424-TX 2SD424 NPN TO-3/TO-204AA

Q12, Q13,

PT-350000-AT 50K DET GAIN POT

Q15, Q16

QD-250400-BX 25A 400V BRIDGE RECTIFIER

B3, B4

QD-000554-TX 2SB554 PNP TO-3/TO-204AA

Q5, Q6, 

SC-061041-SP #6-32 X 1/4" SCREW-SUBPANEL(3) 413 A/B(3)

Q8, Q9

SC-062050-PP #6 X 5/16" P/P ZINC FOR SUBPANEL MTG.

QD-000810-DX DIOD 100V 8A 35NS MUR810

D21, D22

SC-062081-PO #6X1/2 B P/P OVAL BLACK HEAT SINK MTG.

QD-001847-TH SJ1847 PNP TO-66/TO-213AA

Q2

CA-027100-BM OBS-27PF 10% 100V SM 

C2

QD-001848-TH SJ1848 NPN TO-66/TO-213AA

Q1

CA-147100-BD 470PF, 100V, 10%, DISK

C6, C8,

QD-004004-DX DIODE RECT DO41 400V 1A

D4, D7, 

C12

D10, D17,

CA-210100-BP .001UF, 100V, 10%, MYLAR

C1

D18

CA-215200-BP .0015UF, 200V, 10%, MYLAR

C3, C7,

QD-004410-TX BJTN 80V .25A 1.5W 2N4410

Q17, Q20,

C11

Q23

CA-322100-BP .022UF, 100V, 10%, MYLAR

C13

QD-004744-ZA ZENER 15V, 1W, 5%, 1N4744A

Z13, Z14

CA-368100-BP .068UF, 100V, 10%, MYLAR

C5

QD-004934-DX DIODE100V 1A 200NS VP 1N493

D1, D2, 

CA-410100-BP .1UF, 100V, 10%, MYLAR

C9, C10

D3, D5,

CA-415100-CP .15UF, 100V, 5%, MYLAR

C4

D6, D8,

CA-610035-BE 10UF, 35V, ELEC., RADIAL

E7

D9, D11, 

CA-647010-BN 47UF, 10V, 10% RAD,CAP LYTIC E4

D12, D14,

CA-647050-BE 47UF, 50V, ELECT., RADIAL

E5

D15

CA-722010-BN 220UF 10V CAPACITOR

E6

QD-008599-TX BJTP 60V .5A .625W MPS8599

Q18, Q19,

CA-722025-BE 220UF, 25V, ELECT., RADIA

E1, E2

Q21, Q22

CA-747010-BE 470UF, 16V, ELEC., RADIA

E3

QD-015030-TM

Q3

CA-822100-BE 2200UF 100V CAPACITOR

E8, E9,

QD-015031-TM

Q4

E11, E12

QD-1.5200-BX DIODE BRIDGE RECT 200V, 1.5A B1, B2

CA-847050-BE 4700UF 50V CAPACITOR

E14, E15

RE-.01505-FW .15 OHM 3W 10% RESISTOR

R35, R36,

CO-000008-IC SOCKET 100 8-PIN DIP

R38, R39,

CO-520258-MJ 6 COND. MOD JACK

R42, R43,

CO-641119-AH HDR 156 8-PIN RAMP LOCK PREF

R45, R46

HW-060080-PS #6-32 X 8 PEM STUD

RE-082005-BC 820 1/4W 5% CF

R19, R22

MS-000006-TG IN ALL LOC SHOWN AS 'GREASE'

RE-.27005-EM 2.7 2W 5% MOFP

R49, R50