Bose FreeSpace IZA 190-HZ Service Manual

2
CONTENTS
Safety Information.............................................................................................................................3
Warranty .............................................................................................................................................3
Specifications................................................................................................................................ 4-5
Product Description ................................................................................................................... 6-15
Electrostatic Discharge Sensitive (ESDS) Device Handling .....................................................17
Part List Notes ................................................................................................................................17
Packaging Part List, FreeSpace
®
IZA / ZA System (refer to Figure 1) ........................................18
Figure 1. FreeSpace IZA / ZA System Packing View .......................................................................18
Main Part List, FreeSpace FS IZA 190-HZ Amplifier (refer to Figure 2) .....................................19
Figure 2. FreeSpace IZA 190-HZ Amplifier Exploded View ..............................................................20
Main Part List, FreeSpace ZA 190-HZ Amplifier (refer to Figure 3) ............................................21
Figure 3. FreeSpace ZA 190-HZ Amplifier Exploded View ...............................................................22
Main Part List, FreeSpace IZA 250-LZ Amplifier (refer to Figure 4)............................................23
Figure 4. FreeSpace IZA 250-LZ Amplifier Exploded View...............................................................24
Main Part List, FreeSpace ZA 250-LZ Amplifier (refer to Figure 5) ............................................25
Figure 5. FreeSpace ZA 250-LZ Amplifier ........................................................................................26
Electrical Part lists.................................................................................................................... 27-96
FreeSpace IZA 190-HZ Main PCB Assembly ........................................................................... 27-34
FreeSpace IZA 190-HZ DSP PCB Assembly ............................................................................ 35-40
FreeSpace IZA 190-HZ Rear Panel I/O PCB Assembly........................................................... 41-45
FreeSpace IZA 190-HZ 3.5mm Jack PCB Assembly ................................................................ 46-48
FreeSpace IZA 190-HZ LED PCB Assembly ............................................................................ 48-51
FreeSpace IZA 190-HZ Output PCB Assembly..............................................................................51
FreeSpace ZA 190-HZ Main PCB Assembly ............................................................................ 52-59
FreeSpace ZA 190-HZ Rear I/O Panel PCB Assembly............................................................ 60-62
FreeSpace ZA 190-HZ LED PCB Assembly ...................................................................................63
FreeSpace ZA 190-HZ Output PCB Assembly...............................................................................63
FreeSpace IZA 250-LZ Main PCB Assembly ............................................................................ 64-71
FreeSpace IZA 250-LZ DSP PCB Assembly............................................................................. 72-77
FreeSpace IZA 250-LZ Rear Panel I/O PCB Assembly ........................................................... 78-82
FreeSpace IZA 250-LZ 3.5mm Jack PCB Assembly................................................................. 83-85
FreeSpace IZA 250-LZ LED PCB Assembly ...................................................................................86
FreeSpace IZA 250-LZ MIC PCB Assembly ............................................................................. 86-88
FreeSpace ZA 250-LZ Main PCB Assembly ............................................................................. 89-96
Disassembly Procedures ......................................................................................................... 97-98
Test Procedures ..................................................................................................................... 99-107
IZA 250-LZ Amplifier (Low-Z Master Unit) .............................................................................. 99-103
IZA 190-HZ Amplifier (Hi-Z Master Unit) ............................................................................... 103-106
ZA 250-LZ Amplifier (Low-Z Slave Unit) ............................................................................... 106-107
ZA 190-HZ Amplifier (Hi-Z Slave Unit) ..........................................................................................107
Service Manual Revision History ...............................................................................................108

Bose FreeSpace IZA 190-HZ Specifications

General

Amplifier class	D
RMS rated power	90 W
Channels quantity	1 channels
Audio output channels	- channels
Peak power per channel	- W
Signal-to-Noise Ratio (SNR)	- dB
Total Harmonic Distortion (THD)	1 %
XLR in	Yes
Line inputs (RCA)	2
Line outputs (RCA)	1
Speakers connectivity type	RCA
Product color	Silver
Rack capacity	1U
Volume control	Rotary
Connectivity technology	Wired
AC input voltage	230 V
AC input frequency	50 - 60 Hz
Power protection features	Overheating, Short circuit
Power consumption (typical)	15 W
Package weight	4100 g

Weight and Dimensions

Depth	310 mm
Width	214 mm
Height	45 mm
Weight	3200 g