Bose FreeSpace IZA 2120-HZ Service Manual

2
CONTENTS
Safety Information.............................................................................................................................3
Warranty .............................................................................................................................................3
Product Information.................................................................................................................... 4-20
Manufactured Versions ....................................................................................................................4
Electrostatic Discharge Sensitive (ESDS) Device Handling .....................................................21
Part List Notes ................................................................................................................................21
Packaging Part List, IZA 2120-HZ and IZA 2120-LZ Amplifiers (refer to Figure 1) ......................22
Figure 1. IZA 2120-HZ and IZA 2120-LZ Packing View.....................................................................22
Packaging Part List, ZA 2120-HZ and ZA 2120-LZ Systems (refer to Figure 2) ..........................23
Figure 2. ZA 2120-HZ and ZA 2120-LZ Packing View .....................................................................23
Main Part List, IZA 2120-HZ and IZA 2120-LZ Amplifiers (refer to Figure 3) ......................... 24-25
Figure 3. IZA 2120-HZ and IZA 2120-LZ Amplifiers Exploded View ..................................................25
Main Part List, ZA 2120-HZ and ZA 2120-LZ Amplifiers (refer to Figure 4) .................................26
Figure 4. ZA 2120-HZ and ZA 2120-LZ Amplifiers Exploded View....................................................27
Figure 5. IZA 2120-HZ Chassis View...............................................................................................28
Figure 6. IZA 2120-HZ Wiring Diagram............................................................................................28
Figure 7. ZA 2120-HZ Chassis View ...............................................................................................29
Figure 8. ZA 2120-HZ Wiring Diagram ............................................................................................29
Figure 9. IZA 2120-LZ Chassis View ...............................................................................................30
Figure 10. IZA 2120-LZ Wiring Diagram ..........................................................................................30
Figure 11. ZA 2120-LZ Chassis View ..............................................................................................31
Figure 12. ZA 2120-LZ Wiring Diagram ...........................................................................................31
Electrical Part lists.................................................................................................................. 32-103
IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly ................................................................ 32-39
IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly ............................................................ 40-46
FreeSpace IZA 2120-HZ and ZA 2120-HZ LED & Output PCB Assembly.....................................46
IZA 2120-HZ DSP PCB Assembly .............................................................................................. 47-55
IZA 2120-HZ Front PCB Assembly ............................................................................................ 55-57
IZA 2120-HZ Rear Panel PCB Assembly................................................................................... 58-63
ZA 2120-HZ Rear Panel PCB Assembly ................................................................................... 64-69
IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly ................................................................. 70-76
IZA 2120-LZ and ZA 2120-LZ Amplifier PCB Assembly............................................................. 77-79
IZA 2120-LZ and ZA 2120-LZ LED & Output PCB Assembly..........................................................79
IZA 2120-LZ DSP PCB Assembly............................................................................................... 80-88
IZA 2120-LZ Front Panel PCB Assembly .................................................................................. 88-90
IZA 2120-LZ Rear Panel PCB Assembly ................................................................................... 91-96
ZA 2120-LZ Rear Panel PCB Assembly .................................................................................. 97-103
Disassembly Procedures ..................................................................................................... 104-106
Test Procedures ................................................................................................................... 107-124
IZA 2120-LZ Tests ................................................................................................................... 107-111
IZA 2120-HZ Tests ................................................................................................................... 112-117
ZA 2120-LZ Tests ....................................................................................................................118-120
ZA 2120-HZ Tests ................................................................................................................... 121-123
Hi-Pot and Ground Bond Tests ...................................................................................................124
Software Update Procedure................................................................................................ 125-126
Service Manual Revision History ...............................................................................................127

Bose FreeSpace IZA 2120-HZ Specifications

General

Maximum current	5 A
AC input voltage	230 V
AC input frequency	50 Hz
Amplifier class	D
Frequency range	55 - 20000 Hz
Audio output channels	2.0 channels
Peak power per channel	- W
Total Harmonic Distortion (THD)	0.3 %
Purpose	Performance/stage
Equalizer	Yes
Product color	Silver
Volume control	Rotary
Connectivity technology	Wired
Line inputs (RCA)	2
Speakers connectivity type	RCA
Package weight	5400 g

Weight and Dimensions

Depth	324 mm
Width	483 mm
Height	44 mm
Weight	4100 g