Bose L1 Pro32 Service Manual

31
POWER-AMP PCB PARTS LIST
Transistors
Integrated Circuit
Inductors
Reference Designator Description Material Number Note
L1, L4 TRANSFORMER, CUSTOM, HTS-PQ26F 856524-0010 3
L18-L19 INDUCTOR, CLASS D, POWER, 30A, 30%,
6.8uH
856095-6R8N
L2-L3 INDUCTOR, CUSTOM, COMMON MODE,
RADIAL, 12mH
852647-0010
L9 INDUCTOR, POWER, SMT, 4.2A, 20%, 10uH,
COM
852883-100M
Reference Designator Description Material Number Note
Q1, Q3, Q11-Q12 TRANSISTOR, MFET, N-CH, 600V, 18A, DPAK 849830-0020
Q10, Q15, Q19, Q21 TRANSISTOR, NPN, 40V, 0.2A, MMBT3904,
SOT323
195357
Q14 TRANSISTOR, MFET, P-CH, -3.8A, -30V,
SOT23
852237-0010
Q2, Q4 TRANSISTOR, PNP, 600mA, 60V, SOT23 852391-0010
Q20, Q22 XSISTOR, BPLR, P, 40V, 200mA, SOT23 148596
Q8 TRANSISTOR, NPN, 3A, 50V, SOT89 852881-0010
Q9 TRANSISTOR, MFET, N-CH, 0.3A, 60V, SOT-
23
356154-0010
Reference Designator Description Material Number Note
U1 IC, PFC CONTROLLER, TRANS MODE,
UCC28063
730085-0030
U12 IC, DCDC CONV, STEP DOWN, 2A, 28V,
TPS54202H
842669-0010
U2, U5-U6, U8 IC, OPTOCOUPLER, EL817, 4SO 326344-0020 3
U20 IC, PWR AMP, CLASS D, TPA3255, 44HTSSOP 792785-0010
U3 IC, VREG, SW, FLYBACK CNTRLR, HF500-30,
7PDIP
855588-0010
U4, U10 IC, LIN REG, ADJ, SHUNT, TL431, 1%, SOT23-
3
330361-1030
U7 IC, SW, CNTRLR, HALF-BRIDGE, HR1001A,
16SOIC
855754-0010
U9 IC, OP AMP, DUAL, LM358, 8SOIC 856447-0010

Bose L1 Pro32 Specifications

General

Coverage Pattern	180° H x 0° V
Bluetooth	Yes
Battery Life	Not applicable
Type	Portable Line Array System
Maximum SPL	126dB
System Power	2000W peak
Inputs	2 x XLR-1/4" combo
Outputs	XLR line output