Bose FreeSpace Business E4 II Series Service Manual page 49
Digital signal processor and power amplifier
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Also See for FreeSpace Business E4 II Series:
- Owner's manual (75 pages) ,
- Quick start up manual (4 pages) ,
- Owner's manual (16 pages)
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E4 Series II Power Supply / Power Amplifier PCB Assembly
Reference
Designator
Q22
PWR MOSFT, 400V, N, TO247
Q23
P, 300V, MMBT92, SOT23
Q24
P, 300V, MMBT92, SOT23
Q25
P, 300V, MMBT92, SOT23
Q26
N, 300V, MMBT42, SOT23
Q27
N, 300V, MMBT42, SOT23
Q28
N, 300V, MMBT42, SOT23
Q29
N, 300V, MMBT42, SOT23
Reference
Designator
A1
OP AMP, DUAL, SOIC8, TL072BC
A2
OP AMP, DUAL, SOIC8, TL072BC
A3
DIF LINE RCVR, SSM2143, SOIC8
A4
DIF LINE RCVR, SSM2143, SOIC8
A5
QUAD OP AMP, TLO74D, SOIC
A6
QUAD OP AMP, TLO74D, SOIC
A7
QUAD OP AMP, TLO74D, SOIC
A8
OP AMP, DUAL, SOIC8, TL072BC
A9
OP AMP, DUAL, SOIC8, TL072BC
A10
DIF LINE RCVR, SSM2143, SOIC8
A11
DIF LINE RCVR, SSM2143, SOIC8
A12
QUAD OP AMP, TLO74D, SOIC
A13
QUAD OP AMP, TLO74D, SOIC
A14
QUAD OP AMP, TLO74D, SOIC
U1
ASSY, HTSINK W/CLIP, TPSW-245
U2
HI-V, SMPS, TPSW-GX, 243, SOIC8
U3
MULTIVIB, DUAL, 74HC4538, SO16
U4
2IN, SHM NAND GT, 74HC132, S14
U5
2IN, SHM NAND GT, 74HC132, S14
U8
VOLT REG, SMD, POS, SOT89, +5V
U9
VOLT REG, SMD, POS, SOT89, +5V
U10
AMP CTL MODULE & HEATSINK ASSY
U11
VOLT REG, POS, D2PAK, 7812, 12V
U12
TEMP SENS, DEG F, TO-92, LM34
U13
VOLT REG, NEG, 7915, SOT89
U14
PIC16F873, PROGRAMMED
U15
AN SW, MUX / DEMUX, 74HC4051
U16
VOLT REG, SMD, POS, SOT89, +15V
U17
VOLT REG, SMD, POS, SOT89, +5V
U18
AMP CTL MODULE & HEATSINK ASSY
U19
VOLT REG, POS, D2PAK, 7812, 12V
U20
TEMP SENS, DEG F, TO-92, LM34
U21
VOLT REG, NEG, 7915, SOT89
U22
PIC16F873, PROGRAMMED
U23
AN SW, MUX / DEMUX, 74HC4051
U24
VOLT REG, SMD, POS, SOT89, +15V
U25
VOLT REG, SMD, POS, SOT89, +5V
ELECTRICAL PART LIST
Transistors (continued)
Description
Integrated Circuits
Description
49
Part Number
Note
260675
260587-1
260587-1
260587-1
260588-1
260588-1
260588-1
260588-1
Part Number
Note
188711-002
188711-002
260676
260676
186112
186112
186112
188711-002
188711-002
260676
260676
186112
186112
186112
260534-5
260663-3
260667
260589-1
260589-1
258167-05
258167-05
260536-1
260689-12
260680
260688-15
260535-1
260690
258167-15
258167-05
260536-1
260689-12
260680
260688-15
260535-1
260690
258167-15
258167-05
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