Bose FreeSpace IZA 2120-HZ Service Manual
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Bose FreeSpace IZA 2120-HZ Service Manual

Integrated zone amplifier / zone amplifier
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®
FreeSpace
Integrated Zone Amplifier /
Zone Amplifier
Models IZA 2120-HZ, IZA 2120-LZ,
ZA 2120-HZ and ZA 2120-LZ
©2016 Bose Corporation
Service Manual
Reference Number 719782-SM Rev. 01

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Summary of Contents for Bose FreeSpace IZA 2120-HZ

  • Page 1 ® FreeSpace Integrated Zone Amplifier / Zone Amplifier Models IZA 2120-HZ, IZA 2120-LZ, ZA 2120-HZ and ZA 2120-LZ ©2016 Bose Corporation Service Manual Reference Number 719782-SM Rev. 01...

  • Page 2: Table Of Contents

    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 ....................

  • Page 3: Safety Information

    THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. WARRANTY The Bose FreeSpace Integrated Zone Amplifier and Zone Amplifier are covered by a 5-year limited warranty.

  • Page 4: Product Information

    IZA/ZA 2120-HZ/LZ chassis are full width. ® Of the four chassis, two have internal DSP with switch selections for Bose Professional speakers (Hi-Z Master and Lo-Z Master) as well as a paging input along with 2 channels of amplifier output.
  • Page 5 Product Information FreeSpace IZA 2120-HZ ® Product Description Applications For background/foreground music and paging applications, Bose ® • Designed for a wide range of applications, FreeSpace ® including: experience when using FreeSpace ® loudspeakers. Optimized for • Retail stores • Restaurants and bars Loudspeaker EQ to enrich audio quality, Opti-voice ®...
  • Page 6 Channel Separation (Crosstalk) ≤ –58 dBu (below rated power, 1 kHz) Dynamic Range 88 dB Integrated DSP A/D and D/A Converters 24-bit / 48 kHz Processing Functions Loudspeaker EQ, Bose Opti-voice paging, Dynamic equalization ® ® Loudspeaker Presets FreeSpace ®...
  • Page 7 PAGE INPUT GAIN – Allows for 0 dB to +50 dB of gain control of PAGE INPUT signal. setting. Use this setting for loudspeakers that are not Bose or that do not require EQ. The HPF is set at 55 Hz.
  • Page 8 Product Information FreeSpace IZA 2120-HZ ® AC Current Draw and Thermal Dissipation Information IZA 2120-HZ, AC Current Draw and Thermal Dissipation Thermal Dissipation, Max Load Configuration Total Audio 120VAC 60Hz. 230VAC 50Hz. Test Signal & Power Level (Both IZA channels driven) Output, W Line Current, A Line Current, A...
  • Page 9 Product Information FreeSpace ZA 2120-HZ ® Product Description The Bose FreeSpace ® ® front-end Bose products such as FreeSpace ® and ControlSpace engineered sound processors. ® Key Features • optimized for 70/100V high-impedance applications. • Dual remotes support optional volume adjustment for independent, or combined, zone control which eliminates the need for bulky, •...
  • Page 10 Product Information FreeSpace ZA 2120-HZ ® Power Rating 2 x 120 W @ 70/100V Audio Performance Frequency Response 55 Hz - 20 kHz (+0/–3 dB, @ 1 W reference 1 kHz) THD+N ≤ 0.3 % (at rated power) Channel Separation (Crosstalk) ≤ –58 dBu (below rated power, 1 kHz) Dynamic Range 88 dB Audio Inputs...
  • Page 11 ZONE 1+2. 70V/100V – The output can be set to 70V or 100V. MUTE – Contact closure connection that upon trigger (short) will mute all outputs. REMOTE – Input connectors for the Bose volume control user interface accessory (PC 041966). ®...
  • Page 12 Product Information FreeSpace ZA 2120-HZ ® AC Current Draw and Thermal Dissipation Information Thermal Dissipation, Max Load Configuration Total Audio 120VAC 60Hz. 230VAC 50Hz. Test Signal & Power Level (Both IZA channels driven) Output, W Line Current, A Line Current, A Watts BTU/hr.
  • Page 13 Product Information FreeSpace IZA 2120-LZ ® Product Description Applications For background/foreground music and paging applications, Bose ® • Designed for a wide range of applications, FreeSpace ® audio including: experience when using FreeSpace loudspeakers. Optimized for ® • Retail stores •...
  • Page 14 Channel Separation (Crosstalk) ≤ –58 dBu (below rated power, 1 kHz) Dynamic Range 88 dB Integrated DSP A/D and D/A Converters 24-bit / 48 kHz Processing Functions Loudspeaker EQ, Bose Opti-voice paging, Dynamic equalization ® ® ® ® Loudspeaker Presets...
  • Page 15 EQ – Provides loudspeaker equalization presets: Flat, DS 16, DS 40, DS 100 and RMU105. Use the Flat setting for loudspeakers that are not Bose or that do not require EQ. PAGE INPUT THRESHOLD – Adjusts the level at which the VOX PAGE INPUT signal causes other inputs to be lowered.
  • Page 16 Product Information FreeSpace IZA 2120-LZ ® AC Current Draw and Thermal Dissipation Information Thermal Dissipation, Max Load Configuration Total Audio 120VAC 60Hz. 230VAC 50Hz. Test Signal & Power Level (Both IZA channels driven) Output, W Line Current, A Line Current, A Watts BTU/hr.
  • Page 17 Product Information FreeSpace ZA 2120-LZ ® Product Description The Bose ® FreeSpace ® front-end Bose products such as FreeSpace ® and ControlSpace ® engineered sound processors. Key Features • optimized for low-impedance applications. • Remote option for volume control eliminates the need for bulky, •...
  • Page 18 Product Information FreeSpace ZA 2120-LZ ® Power Rating 2 x 120 W @ 4 Ω, 2 x 60 W @ 8 Ω Audio Performance Frequency Response 20 Hz - 20 kHz (+0/–3 dB, @ 1 W reference 1 kHz) THD+N ≤...
  • Page 19 The OFF position disables the feature. OUTPUT – The output can be set to STEREO or MONO. MUTE – Contact closure connection that upon trigger (short) will mute all outputs. REMOTE – Input connector for the Bose ® volume control user interface accessory (PC 041966).
  • Page 20 Product Information FreeSpace ZA 2120-LZ ® AC Current Draw and Thermal Dissipation Information Thermal Dissipation, Max Load Configuration Total Audio 120VAC 60Hz. 230VAC 50Hz. Test Signal & Power Level (Both IZA channels driven) Output, W Line Current, A Line Current, A Watts BTU/hr.

  • Page 21: Electrostatic Discharge Sensitive (Esds) Device Handling

    ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) DEVICE HANDLING This unit contains ESDS devices. We recommend the following precautions when repairing, replacing or transporting ESDS devices: • Perform work at an electrically grounded work station. • Wear wrist straps that connect to the station or heel straps that connect to conductive floor mats.
  • Page 22 PACKAGING PART LIST IZA 2120-HZ and IZA 2120-LZ Amplifiers (refer to Figure 1) Item Description Part Number Qty. Note Number PE FOAM, REAR, 508X107X56 740151-001S CARTON, LINE CORD/ACCESSORIES 753016-001S PLUG, 4P, GREEN (PAGE INPUT) PLUG, 4P, BLACK (REMOTES) IZA 2120-HZ IZA 2120-LZ PLUG, 2P, BLACK (MUTE) PLUG, 2P, GREEN (OUTPUTS)
  • Page 23 PACKAGING PART LIST ZA 2120-HZ and ZA 2120-LZ Systems (refer to Figure 2) Item Description Part Number Qty. Note Number PE FOAM, REAR, 508X107X56 740151-001S RCA CABLE 351448-0010 ZIP LOCK BAG PLUG, 2P, GREEN (OUTPUTS) PLUG, 2P, BLACK (REMOTES AND MUTE) ZA 2120-HZ ZA 2120-LZ PLUG, 5P (INPUT)
  • Page 24 MAIN PART LIST IZA 2120-HZ and IZA 2120-LZ Amplifiers (refer to Figure 3) Item Description Part Number Qty. Note Number TOP COVER (with foam) 719961-031S SCREW, M3x5, MACHINE, FLAT-CS PCB ASSY, REAR PANEL OUTPUT, SVCE 729597-001S BRASS TUBE, M3x6.3 PCB ASSY, USB, SERV 729593-001S PCB ASSY, REAR, MASTER HI-Z, SVCE 729421-001S...
  • Page 25 MAIN PART LIST IZA 2120-HZ and IZA 2120-LZ Amplifiers (refer to Figure x) Item Description Part Number Qty. Note Number ASSY, CABLE, GROUND INLET 753371-001S ASSY, HARNESS, DSP TO AMP 753370-001S ASSY, HARNESS, DSP TO PS 753369-001S ASSY, HARNESS, IEC TO SWITCH 753367-001S ASSY, HARNESS, PS TO AMP 753368-001S...
  • Page 26 MAIN PART LIST ZA 2120-HZ and ZA 2120-LZ Amplifiers (refer to Figure 4) Item Description Part Number Qty. Note Number TOP COVER ASSY, SVCE 719961-031S (INCLUDES INSULATING SHEET) SCREW, MACHINE, M3x5, FLAT-CS PCB ASSY, REAR PANEL OUTPUT, HI-Z, SVCE 729597-001S BRASS TUBE, M3x18 PCB ASSY, REAR, AMPO HI-Z, SVCE 729421-003S...
  • Page 27 PART OF ITEM 1 Figure 4. ZA 2120-HZ and ZA 2120-LZ Amplifiers Exploded View...
  • Page 28 Figure 5. IZA 2120-HZ Chassis View AC INPUT J716 Rear Panel board Output board J700 J710 J401 J400 J202 J204 DSP board Amplifier board Power Supply board J404 J201 J406 J403 J405 J203 J902 LED board Front Panel board POWER SWITCH J950 J900 Figure 6.
  • Page 29 Figure 7. ZA 2120-HZ Chassis View AC INPUT Rear Panel board Output board J701 J402 J404 J403 J710 J202 J204 Amplifier board Power Supply board J201 J203 LED board POWER SWITCH J950 Figure 8. ZA 2120-HZ Wiring Diagram...
  • Page 30 Figure 9. IZA 2120-LZ Chassis View AC INPUT J716 Rear Panel board Output board J700 J710 J401 J400 J202 J204 DSP board Amplifier board Power Supply board J404 J201 J406 J403 J405 J203 J902 LED board Front Panel board POWER SWITCH J950 J900 Figure 10.
  • Page 31 Figure 11. ZA 2120-LZ Chassis View AC INPUT Rear Panel board Output board J404 J701 J402 J403 J710 J202 J204 Amplifier board Power Supply board J201 J203 LED board POWER SWITCH J950 Figure 12. ZA 2120-LZ Wiring Diagram...
  • Page 32 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R200 RMG, 1/16W, 0R, 1%, 0603 4723-000A R202 RMG, 1/16W, 2.2K, 1%, 0603/1608 4723-222A R203 RMG, 1/16W, 3K, 1%, 0603 4723-302A R204 RMG, 1/16W, 4.7K, 1%, 0603/1608...
  • Page 33 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R270 RMG, 1/16W, 100R, 1%, 0603 4723-101A R271 RMG, 1/16W, 100R, 1%, 0603 4723-101A R272 RMG, 1/16W, 100K, 1%, 0603 4723-104AR R273 RMG, 1/16W, 100K, 1%, 0603...
  • Page 34 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R359 RMG, 1/16W, 1K, 1%, 0603/1608 4723-102A R360 RMG, 1/16W, 1K, 1%, 0603/1608 4723-102A R361 RMG, 1/16W, 1K, 1%, 0603/1608 4723-102A R362 RMG, 1/16W, 47K, 1%, 0603...
  • Page 35 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C254 CC, 1000V, 2200P, 10%, 1206, X7R 150N-222KCF C255 CC, 1000V, 2200P, 10%, 1206, X7R 150N-222KCF C256 CC, 50V, 1500pF, 10%, 0805, 1.2x2.0 150F-152KBD C257 CM, 400V, 0.47U, 5%RB, 16X16, X7,...
  • Page 36 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C307 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C308 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C310 CER2, 1206, X7R, 50V, 100N, PM10, R 150F-104KCF C311 CER2, 1206, X7R, 50V, 100N, PM10, R...
  • Page 37 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Diodes (continued) Reference Description Vendor Part Note Designator Number D205 DIODE, ULTRAFAST, 600V, 16A, ER1606CT, RL, 4800-6CT0 PANJIT D206 DIODE, ULTRAFAST, 600V, 16A, ER1606CT, RL, 4800-6CT0 PANJIT D207 DIODE, SCHOTTKY, 40V, 2A, SK24, SMB, SM, 480S-K240...
  • Page 38 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Transistors (continued) Reference Description Vendor Part Note Designator Number Q213 TR, 3904, HFE, 100-300, SM 4860-0640 Q214 TR, MMBTA92, PNP, SOT23, KEC 4860-5360 Q215 TR, NPN, 2SC2655Y, HFE, 40, TO-92MOD, RLT 4856-55Y0 Q216 TR, MMBTA42-7-F, NPN, SMD, SOT23...

  • Page 39: Iza 2120-Hz And Za 2120-Hz Smps Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ SMPS PCB Assembly Miscellaneous (continued) Reference Description Vendor Part Note Designator Number SCREW SCREW, M3X10, W/S&F, WASHER, (BLK) 2900-3010 SCREW, M3 SCREW, MACHINE, PAN, M3X8, CROSS- 2900-3008 RECESS, BZ SILICON INSULATN-SHEET, SIL-PAD, 800, 18X13 3101-0611 T200...
  • Page 40 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Resistors Reference Description Vendor Part Note Designator Number RMG, 1/16W, 10K, 1%, 0603 4723-103AR RMG, 1/16W, 10K, 1%, 0603 4723-103AR RMG, 1/16W, 30K, 1%, 0603/1608 4723-303A RMG, 1/16W, 330K, 5%, 0603/1608 4723-334J RMG, 1/16W, 330K, 5%, 0603/1608 4723-334J...
  • Page 41 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number RMG, 1/16W, 7.5K, 1%, 0603/1608 4723-912A RMG, 1/16W, 7.5K, 1%, 0603/1608 4723-912A RMG, 1/16W, 7.5K, 1%, 0603/1608 4723-912A RMG, 1/16W, 7.5K, 1%, 0603/1608 4723-912A RMG, 1/16W, 10K, 1%, 0603...
  • Page 42 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Capacitors Reference Description Vendor Part Note Designator Number CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC...
  • Page 43 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number CM, 400V, 0.1U, 5%, RB, 17.5X11X5 153T-104J7U CM, 400V, 0.1U, 5%, RB, 17.5X11X5 153T-104J7U CM, 400V, 0.1U, 5%, RB, 17.5X11X5 153T-104J7U CM, 400V, 0.1U, 5%, RB, 17.5X11X5 153T-104J7U...

  • Page 44: Iza 2120-Hz And Za 2120-Hz Amplifier Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C118 CC, 50V, 0.1uF, 10%, 0805 150F-104KBD C119 CC, 50V, 0.1uF, 10%, 0805 150F-104KBD C120 CC, 50V, 0.1uF, 10%, 0805 150F-104KBD C121 CC, 50V, 0.1uF, 10%, 0805...
  • Page 45 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ and ZA 2120-HZ Amplifier PCB Assembly Diodes (continued) Reference Description Vendor Part Note Designator Number DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160...

  • Page 46: Freespace Iza 2120-Hz And Za 2120-Hz Led & Output Pcb Assembly

    TRANS, CURRENT, SENSE, 20A, EE8.3 1806-4237 TRANS, CURRENT, SENSE, 20A, EE8.3 1806-4237 TRANS, CURRENT, SENSE, 20A, EE8.3 1806-4237 TRANS, CURRENT, SENSE, 20A, EE8.3 1806-4237 FreeSpace IZA 2120-HZ and ZA 2120-HZ LED & Output PCB Assembly Capacitors Reference Description Vendor Part Note Designator Number...
  • Page 47 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R400 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R401 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R402 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R403 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R404...
  • Page 48 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R469 RMG, 1/16W, 0R, 1%, 0603 4723-000A R470 RMG, 1/16W, 0R, 1%, 0603 4723-000A R471 RMG, 1/16W, 0R, 1%, 0603 4723-000A R472 RMG, 1/16W, 0R, 1%, 0603 4723-000A...
  • Page 49 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R536 RMG, 1/16W, 200K, 1%, 0603/1608 4723-222A R537 RMG, 1/16W, 22K, 1%, 0603 4723-223AR R549 RMG, 1/16W, 0R, 1%, 0603 4723-000A R550 RMG, 1/16W, 0R, 1%, 0603 4723-000A...

  • Page 50: Iza 2120-Hz Dsp Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R611 RMG, 1/16W, 100R, 1%, 0603 4723-101A R612 RMG, 1/16W, 100R, 1%, 0603 4723-101A R613 RMG, 1/16W, 100R, 1%, 0603 4723-101A R614 RMG, 1/16W, 100K, 1%, 0603 4723-104AR...
  • Page 51 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C428 CC, 50V, 33PF, 5%, 0603, C0G 150F-330JAC C430 CC, 6.3V, 4.7U, 10%, 0603 150B-475KAC C431 CC, 6.3V, 4.7U, 10%, 0603 150B-475KAC C432 CC, 6.3V, 4.7U, 10%, 0603...
  • Page 52 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C483 CC, 50V, 100PF, 5%, 0603, C0G 150F-101JAC C484 CC, 50V, 100PF, 5%, 0603, C0G 150F-101JAC C485 CC, 50V, 100PF, 5%, 0603, C0G 150F-101JAC C486 CE, 25V, 220U, 20%, SM, 8.4X10, LOW, ESR,...
  • Page 53 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C543 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C544 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C545 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C546 CC, 50V, 0.1uF, 10%, 0603, X7R...
  • Page 54 ELECTRICAL PART LIST FreeSpace ® IZA 2120-HZ DSP PCB Assembly Diodes Reference Description Vendor Part Note Designator Number D400 DIODE, SCHOTTKY, SK16, DO-214AA, 60V, 1A, 480S-K160 SMD, PANJIT D401 DIODE, SCHOTTKY, 40V, 3A, ST, PS3L40S, DO- 480L-40S0 214AB, SMD, ST D402 DIODE, BAV99, SOT23 4840-8970...

  • Page 55: Iza 2120-Hz Front Pcb Assembly

    J406 CONNECTOR, FFC, 25P, P1.0, TOP, ENTRY 2101-3043 X400 CRYSTAL, 24.576MHZ20PPM, SM, HC-49-SMD 2300-3290 X401 CRYSTAL, 12MHZ, -40, C, SMD 2300-2430 FreeSpace IZA 2120-HZ Front PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R900 RMG, 1/16W, 100R, 1%, 0603...
  • Page 56 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Front PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R927 RMG, 1/10W, 24.3K, 1%, 0603 4720-2432 R928 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J R929 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J R930...
  • Page 57 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Front PCB Assembly Diodes Reference Description Vendor Part Note Designator Number D900 DIODE, BAV99, SOT23 4840-8970 D901 DIODE, BAV99, SOT23 4840-8970 D902 DIODE, BAV99, SOT23 4840-8970 D903 DOUBLE, DIODE, BAT54S, SOT-23, SCHOTTKY, SMD 480T-54S0...

  • Page 58: Iza 2120-Hz Rear Panel Pcb Assembly

    ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R700 RMG, 1/16W, 27K, 1%, 0603/1608 4723-273A+P R701 RMG, 1/16W, 27K, 1%, 0603/1608 4723-273A+P R702 RMG, 1/16W, 3K, 1%, 0603 4723-302A+P R703...

  • Page 59: Za 2120-Hz Rear Panel Pcb Assembly

    ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R785 RMG, 1/16W, 100K, 1%, 0603 4723-104A+P-R R786 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R R787 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R...
  • Page 60 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R883 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R R884 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R R885 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R...
  • Page 61 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C773 CC, 50V, 22P, 5%, 0603, C0G 150F-220J+P-AC C774 CC, 50V, 0.01uF, 10%, 0603, X7R 150F-103K+P-AC C775 CC, 50V, 1000p, 5%, 0805, 1.25X2.0, MURATA...
  • Page 62 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C854 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104K+P-AC C855 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104K+P-AC C856 CC, 50V, 1000p, 5%, 0805, 1.25X2.0, MURATA...
  • Page 63 ELECTRICAL PART LIST FreeSpace IZA 2120-HZ Rear Panel PCB Assembly Integrated Circuits Reference Description Vendor Part Note Designator Number U701 IC, NJM2068M-#ZZZB, DUAL, OP, AMP 3130-6890+0 U702 IC, OP, AMP, SWITCH, NJM2120M, SOIC8, JRC 3132-3711+0 U703 IC, OP, AMP, SWITCH, NJM2120M, SOIC8, JRC...
  • Page 64 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R402 RMG, 1/16W, 4.7K, 1%, 0603/1608 4723-472A+P R403 RMF, 1/4W, 2R2, 1%, 1206 4715-2R2A+6 R404 RMG, 1/16W, 8.2K, 1% 4723-822A+P R405 RMG, 1/16W, 0R, 1%, 0603 4723-000A+P R406...
  • Page 65 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R711 RMG, 1/16W, 270R, 1%, 0603 4723-271A+P-R R712 RMG, 1/16W, 270R, 1%, 0603 4723-271A+P-R R713 RMG, 1/16W, 47K, 1%, 0603 4723-473A+P-R R714 RMG, 1/16W, 47K, 1%, 0603...
  • Page 66 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R773 RMG, 1/16W, 100R, 1%, 0603 4723-101A+P R774 RMG, 1/16W, 100R, 1%, 0603 4723-101A+P R776 RMG, 1/16W, 100K, 1%, 0603 4723-104A+P-R R777 RMG, 1/16W, 100K, 1%, 0603...
  • Page 67 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C739 CT, 16V, 10U, 20%, SMD 154D-106M+3-CF C740 CT, 16V, 10U, 20%, SMD 154D-106M+3-CF C741 CT, 16V, 10U, 20%, SMD 154D-106M+3-CF C742 CT, 16V, 10U, 20%, SMD...
  • Page 68 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Diodes Reference Description Vendor Part Note Designator Number D402 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160+3 D403 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160+3 D404 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM 480S-3160+3 D405 DIODE, FAST, 75V, 0.5A, BAS316, SOD323, SM...
  • Page 69 ELECTRICAL PART LIST FreeSpace ® ZA 2120-HZ Rear Panel PCB Assembly Transistors (continued) Reference Description Vendor Part Note Designator Number U708 IC, TL072CDR, DUAL, J-FET, INPUT, OP-AMP, 3130-8020+0 (SMD U709 IC, TL072CDR, DUAL, J-FET, INPUT, OP-AMP, 3130-8020+0 (SMD U710 IC, LM13700M/NOPB, TRANSCONDUCTANCE, 3132-1981+0 U711 IC, TL072CDR, DUAL, J-FET, INPUT, OP-AMP,...
  • Page 70 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R200 RMG, 1/16W, 0R, 1%, 0603 4723-000A R202 RMG, 1/16W, 6.8K, 1%, 0603/1608 4723-682A R203 RMG, 1/16W, 3K, 1%, 0603 4723-302A R204 RMG, 1/16W, 4.7K, 1%.0603/1608...
  • Page 71 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R270 RMG, 1/16W, 100R, 1%, 0603 4723-101A R271 RMG, 1/16W, 100R, 1%, 0603 4723-101A R272 RMG, 1/16W, 100K, 1%, 0603 4723-104AR R273 RMG, 1/16W, 100K, 1%, 0603...
  • Page 72 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Capacitors Reference Description Vendor Part Note Designator Number C200 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C201 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C202 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C204 CC, 50V, 0.1uF, 10%, 0603, X7R...
  • Page 73 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C266 CC, 50V, 0.1uF, 10%, 0805, 1.2X2.0 150F-104KBD C267 CE, 25V, 470U, 20%, RLT, 10X16, 105C, RX, 157E-477MS5TU NOVER C268 CE, 25V, 470U, 20%, RLT, 10X16, 105C, RX,...
  • Page 74 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Inductors Reference Description Vendor Part Note Designator Number L202 FERRITE BEAD, CHIP, SEBW201209U121MT, 1808-0872 0805 L203 FERRITE BEAD, CHIP, SEBW201209U121MT, 1808-0872 0805 L204 FERRITE BEAD, CHIP, SEBW201209U121MT, 1808-0872 0805 L205...
  • Page 75 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Diodes (continued) Reference Description Vendor Part Note Designator Number D224 DIODE, RECT, 200V, 2A, ER2D, SMB/DO-214AA, 480E-R2D0 D226 RECTIFIER, ES1D, 200V, 1.1A, SMD 4840-9190 D232 DIODE, SCHOTTKY, SK16, DO-214AA, 60V, 1A, 480S-K160 SMD, PANJIT DZ202...

  • Page 76: Iza 2120-Lz And Za 2120-Lz Smps Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ SMPS PCB Assembly Miscellaneous Reference Description Vendor Part Note Designator Number CLAMP SMPS CLAMP, IC, SUS301, T=1, NATURAL, 3/4H 4136-0932 F200 FUSE, 4A, 250V, 8.5X8, EU/CCC, RLT 5120-1180 HEATSINK SCREW, MACHINE, BIND, HEAD, M3X8, CROSS- 2904-3008 RECESS, BZ HS SMPS...
  • Page 77 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ Amplifier PCB Assembly Resistors Reference Description Vendor Part Note Designator Number RMF, 1/2W, 10R, 1%, 1210 4717-100A RMF, 1/2W, 10R, 1%, 1210 4717-100A RMG, 1/16W, 4.7K, 5%, 0603 4723-472JR RMG, 1/16W, 470K, 5%, 0603 4723-474JR RMG, 1/16W, 470K, 5%, 0603 4723-474JR...
  • Page 78 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ Amplifier PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number CE, 100V, 47U, 20%, RLT10X16, LOW ESR, 157H-476MS5RT 105C, WB, SAMWHA CC, 25V, 4.7U, 10%, 0805, X5R 150E-475KBD CC, 25V, 4.7U, 10%, 0805, X5R 150E-475KBD CC, 25V, 4.7U, 10%, 0805, X5R...

  • Page 79: Iza 2120-Lz And Za 2120-Lz Amplifier Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ and ZA 2120-LZ Amplifier PCB Assembly Transistors Reference Description Vendor Part Note Designator Number TR, 2N2222, SMD, MMBT2222ALT1G 4860-5410 Integrated Circuits Reference Description Vendor Part Note Designator Number IC, POWER, 8954TH, SOP24, NXP 3132-923151 IC, TL072CDR, DUAL J-FET, INPUT, OP-AMP, 3130-8020...
  • Page 80 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R400 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R401 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R402 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R403 RMG, 1/16W, 3.3K, 1%, 0603 4723-332AR R404...
  • Page 81 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R473 RMG, 1/16W, 0R, 1%, 0603 4723-000A R479 RMG, 1/16W, 0R, 1%, 0603 4723-000A R480 RMG, 1/16W, 0R, 1%, 0603 4723-000A R481 RMG, 1/16W, 220R, 1%, 0603/1608 4723-221A...

  • Page 82: Iza 2120-Lz Dsp Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R551 RMG, 1/16W, 0R, 1%, 0603 4723-000A R552 RMG, 1/16W, 0R, 1%, 0603 4723-000A R553 RMG, 1/16W, 392R, 1%, 0603 4723-3920 R554 RMG, 1/16W, 392R, 1%, 0603 4723-3920...
  • Page 83 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R615 RMG, 1/16W, 100K, 1%, 0603 4723-104AR R616 RMG, 1/16W, 1M, 1%, 0603 4723-105A R617 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J R618 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J...
  • Page 84 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C433 CC, 6.3V, 4.7U, 10%, 0603 150B-475KAC C434 CC, 6.3V, 4.7U, 10%, 0603 150B-475KAC C435 CC, 50V, 2700PF, 10%, 0603, X7R 150F-272KAC C436 CC, 50V, 270P, 10%, 0603, 1x2...
  • Page 85 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C486 CE, 25V, 220U, 20%, SM, 8.4X10, LOW ESR, 157E-227MPSR5 LELON C487 CE, 25V, 100UF, 20%, 6.3X7.7, SMD 157E-107MLO C488 CE, 25V, 100UF, 20%, 6.3X7.7, SMD 157E-107MLO C489 CC, 50V, 0.1uF, 10%, 0603, X7R...
  • Page 86 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C546 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C547 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C548 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104KAC C549 CC, 50V, 0.1uF, 10%, 0603, X7R...
  • Page 87 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Diodes Reference Description Vendor Part Note Designator Number D400 DIODE, SCHOTTKY, SK16, DO-214AA, 60V, 1A, 480S-K160 SMD, PANJIT D401 DIODE, SCHOTTKY, 40V, 3A, ST, PS3L40S, DO- 480L-40S0 214AB, SMD, ST D402 DIODE, BAV99, SOT23, PHILIPS 4840-8970...

  • Page 88: Iza 2120-Lz Front Panel Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP PCB Assembly Integrated Circuits (continued) Reference Description Vendor Part Note Designator Number U414 IC, TL072CDR, DUAL, J-FET, INPUT, OP-AMP, 3130-8020 (SMD) U415 IC, REGULATOR, 7815, DPAK/TO-252, AUK 3132-816149 U416 IC, REGULATOR, -15V, 7915, DPAK/TO-252, AUK 3132-817149 Miscellaneous Reference...
  • Page 89 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ DSP Front Panel Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R928 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J R929 RMG, 1/16W, 1R, 5%, 0603 4723-1R0J R930 RMG, 1/16W, 13K, 1%, 0603 4723-133AR R931 RMG, 1/16W, 13K, 1%, 0603...
  • Page 90 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Front Panel PCB Assembly Integrated Circuits Reference Description Vendor Part Note Designator Number U710 IC, ESD, PROTECTION, TPD2E001, SOT533 3132-7831 U900 IC, OP, AMP, SMD, 105C, BA4560RF, SOP8 3132-7011 U901 IC, TL072CDR, DUAL, J-FET, INPUT, OP-AMP, 3130-8020 (SMD) U902...

  • Page 91: Iza 2120-Lz Rear Panel Pcb Assembly

    ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R700 RMG, 1/16W, 27K, 1%, 0603/1608 4723-273A+P R701 RMG, 1/16W, 27K, 1%, 0603/1608 4723-273A+P R702 RMG, 1/16W, 3K, 1%, 0603 4723-302A+P R703 RMG, 1/16W, 3K, 1%, 0603 4723-302A+P...
  • Page 92 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R781 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R R782 RMG, 1/16W, 100K, 1%, 0603 4723-104A+P-R R783 RMG, 1/16W, 10K, 1%, 0603 4723-103A+P-R R784 RMG, 1/16W, 100K, 1%, 0603...
  • Page 93 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R888 RMG, 1/16W, 0R, 1%, 0603 4723-000A+P R889 RMG, 1/16W, 0R, 1%, 0603 4723-000A+P R892 RMG, 1/16W, 1.5K, 1%, 0603 4723-152A+P-R R893 RMG, 1/16W, 2.7K, 1%, 0603/1608...
  • Page 94 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C775 CC, 50V, 0.01uF, 10%, 0603, X7R 150F-103K+P-AC C776 CC, 50V, 0.01uF, 10%, 0603, X7R 150F-103K+P-AC C777 CC, 50V, 0.01uF, 10%, 0603, X7R 150F-103K+P-AC C778 CC, 50V, 0.01uF, 10%, 0603, X7R...
  • Page 95 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C866 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104K+P-AC C867 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104K+P-AC C868 CC, 50V, 0.1uF, 10%, 0603, X7R 150F-104K+P-AC C869 CC, 50V, 0.1uF, 10%, 0603, X7R...
  • Page 96 ELECTRICAL PART LIST FreeSpace ® IZA 2120-LZ Rear Panel PCB Assembly Miscellaneous Reference Description Vendor Part Note Designator Number J701 SOCKET, M, 2P, P5, 300V, 15A, BLACK 2113-3361+1 J702 RCA, JACK, F, 2P, P15, 30V, 0.3A, H=10+9.5, R/W 2113-3153+2 J703 RCA, JACK, F, 2P, P15, 30V, 0.3A, H=10+9.5, R/W 2113-3153+2 J704...
  • Page 97 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Resistors Reference Description Vendor Part Note Designator Number R402 RMG, 1/16W, 4.7K, 1%.0603/1608 4723-472A+P R403 RMF, 1/4W, 2R2, 1%, 1206 4715-2R2A+6 R404 RMG, 1/16W, 8.2K, 1%, 0603/1608 4723-822A+P R405 RMG, 1/16W, 0R, 1%, 0603 4723-000A+P R406...
  • Page 98 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R713 RMG, 1/16W, 47K, 1%, 0603 4723-473A+P-R R714 RMG, 1/16W, 47K, 1%, 0603 4723-473A+P-R R715 RMG, 1/16W, 47K, 1%, 0603 4723-473A+P-R R716 RMG, 1/16W, 47K, 1%, 0603...
  • Page 99 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Resistors (continued) Reference Description Vendor Part Note Designator Number R774 RMG, 1/16W, 100R, 1%, 0603 4723-101A+P R776 RMG, 1/16W, 100K, 1%, 0603 4723-104A+P-R R777 RMG, 1/16W, 100K, 1%, 0603 4723-104A+P-R R778 RMG, 1/16W, 20K, 1%, 0603/1608...
  • Page 100 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C430 CC, 50V, 1000P, 5%, 0603, X7R 150F-102J+P-AC C431 CC, 50V, 1000P, 5%, 0603, X7R 150F-102J+P-AC C432 CC, 100V, 0.1U, 10%, 1206, AVX 150H-104K+6-CFD C433 CC, 100V, 0.1U, 10%, 1206, AVX...
  • Page 101 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Capacitors (continued) Reference Description Vendor Part Note Designator Number C746 CC, 50V, 1U, 10%, 0805 150F-105K+J-BD C747 CC, 50V, 1U, 10%, 0805 150F-105K+J-BD C748 CC, 50V, 1U, 10%, 0805 150F-105K+J-BD C750 CC, 50V, 100PF, 5%, 0603, C0G...
  • Page 102 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Diodes (continued) Reference Description Vendor Part Note Designator Number D713 DIODE, 1SS355TE-17, ROHM 4840-1660+0 D714 DIODE, 1SS355TE-17, ROHM 4840-1660+0 D715 DIODE, 1SS355TE-17, ROHM 4840-1660+0 D716 DIODE, BAV99, SOT23 4840-8970+3 D717 DIODE, BAV99, SOT23 4840-8970+3...
  • Page 103 ELECTRICAL PART LIST FreeSpace ® ZA 2120-LZ Rear Panel PCB Assembly Miscellaneous Reference Description Vendor Part Note Designator Number J401 5P, ST., WAFER, P=2.0, COULOMB 2102-050S+003 J402 WIRE-CONN, 6P, P2.0, #28, UL1007, L=480, 7013-4530+0 RD/WH, F/M J403 WIRE-CONN, 4P, P2.0, #28, UL1007, L=320, 7013-4541+0 RD/WH, F/M J404...

  • Page 104: Disassembly Procedures

    DISASSEMBLY PROCEDURES Note: The IZA 2120-HZ, IZA 2120-LZ, ZA 2120- HZ and ZA 2120-LZ all share a similar design. As a result, the disassembly procedures are similar for all four models. Any differences in disassembly are detailed in the following procedures.
  • Page 105 DISASSEMBLY PROCEDURES 4. DSP PCB Removal 7. Front Panel PCB Removal (IZA 2120-HZ and IZA 2120-LZ units only) (IZA 2120-HZ and IZA 2120-LZ units only) 4.1 Perform procedure 1. 7.1 Perform procedures 1, 2 and 4. 4.2 Unplug the ribbon cables at J400, J401, 7.2 Unplug the ribbon cable at J902.
  • Page 106 DISASSEMBLY PROCEDURES 8.3B Remove the ten screws that secure 11. Fan Removal the rear panel jacks to the chassis. Lift out the PCB assembly. 11.1 Perform procedure 1. IMPORTANT NOTE: Do not remove the screws located on the inside of the chassis 11.2 Unplug the fan wiring harness from the that are on the PCB assembly itself.

  • Page 107: Test Procedures

    • Audio Precision ATS-1 or equivalent • Audio Precision AUX-0025 digital filter or equivalent ® • Remote Volume control with A/B Select User Interface (Bose PC 041967) • 2- 4 ohm, 250 Watt load resistors Test Setup: • Bass and Treble control, set at 12:00 o’clock position.
  • Page 108 TEST PROCEDURES 2.2 Change the input frequency to 40Hz. Verify that the output level is -1dBr +/- 1. 2.3 Change the input frequency to 18kHz. Verify that the output level is -1dBr +/- 1. 2.4 Turn off the signal generator output. Measure the noise level with a 20kHZ filter and A-weighting.
  • Page 109 TEST PROCEDURES 3.3 Rotate the Treble control fully CCW (counter-clockwise). Verify that the output level is -5 dBr, +/- 1.5. 3.4 Rotate the Treble control fully CW (clockwise). Verify that the output level is +5dBr, +/- 1.5dBr. 3.5 Apply a -30dBV, 100Hz sine wave to the input A RCA jacks. Adjust the Input A gain rear panel control to allow a 1W output level.
  • Page 110 Return all dip switches to the default positions. 8. Remote Control Test ® 8.1 Connect a volume control with A/B Select User Interface (Bose PC 041967) to the Remote Control input jack located on the rear panel. Set the A/B Select dip switch to the REMOTE position.
  • Page 111 TEST PROCEDURES 8.4 Remove the audio inputs. Move the A/B Select dip switch to the FRONT position. Re-apply the audio inputs. Verify that the remote control is now inactive and that the controls on the amplifier chassis are now working again. 9.

  • Page 112: Iza 2120-Hz Tests

    • Audio Precision AUX-0025 digital filter or equivalent ® • Remote Volume control with A/B Select User Interface (Bose PC 041967) • 2 - 42 ohm (for 70V units) or 83 ohm (for 100V units), 250 Watt load resistors Test Setup: •...
  • Page 113 TEST PROCEDURES 1.10 Verify that the output level is 120W from both channels and that the THD+N is <0.3%. 2. Frequency Response and Output Noise Tests 2.1 Set the front panel Input A / Input B switch to Input A. Apply a -30dBV, 1kHZ sine wave to the input A RCA jacks.
  • Page 114 TEST PROCEDURES 3. Tone Control Frequency Response Tests 3.1 Set the front panel Treble and Bass controls to the 12 o’clock position. Set the front panel Input A / Input B switch to Input A. 3.2 Apply a -30dBV, 7kHz sine wave to the input A RCA jacks. Adjust the Input A gain rear panel control to allow a 1W output level.
  • Page 115 TEST PROCEDURES 100V Output Mode with 83 Ohm Loads 6. Input Sensitivity and THD+N Tests • On the rear panel, set the 70V / 100V switch to 100V 6.1 Set the front panel Input A / Input B switch to Input A. Apply a -10dBV +/- 2dBV, 1kHz sine wave to the input A RCA input jacks.
  • Page 116 Return all dip switches to the default positions. 11. Remote Control Test ® 11.1 Connect a volume control with A/B Select User Interface (Bose PC 041967) to the Remote Control input jack located on the rear panel. Set the A/B Select dip switch to the REMOTE position.
  • Page 117 TEST PROCEDURES 11.4 Remove the audio inputs. Move the A/B Select dip switch to the FRONT position. Re-apply the audio inputs. Verify that the remote control is now inactive and that the controls on the amplifier chassis are now working again. 12.
  • Page 118 • Audio Precision ATS-1 or equivalent • Audio Precision AUX-0025 digital filter or equivalent ® • Bose Volume Control User Interface (PC 041966) • 2- 4 ohm, 250 Watt load resistors Test Setup • Output mode set to stereo, unless otherwise specified.
  • Page 119 5.3 Apply a +14.8dBV +/- 2.5dBV, 1kHz sine wave to the RCA input jacks. 5.4 Verify that the Output Signal / Clip LED on the front panel is lit RED. 6. Remote Control Test 6.1 Connect a volume control with A/B Select User Interface (Bose ® PC 041967) to the Remote Control input jack located on the rear panel.
  • Page 120 TEST PROCEDURES 13. Auto Standby Test 13.1 Set the Auto Standby dip switch to the ON position. Turn the power switch ON. 13.2 With no input signal applied, verify that the amplifier goes into standby mode after twenty minutes. When the unit is in standby mode, the Power LED will be blinking blue. It is lit solid blue when the unit is in operate mode.
  • Page 121 Audio Precision ATS-1 or equivalent • Audio Precision AUX-0025 digital filter or equivalent ® • Bose Volume Control User Interface (PC 041966) • 2 - 42 ohm (for 70V units) or 83 ohm (for 100V units), 250 Watt load resistors Test Setup •...
  • Page 122 TEST PROCEDURES 4. Input Signal Clip Level Test 4.1 Apply a -36dBV +/- 3.5dBV, 1kHz sine wave to the RCA input jacks. 4.2 Verify that the Input Signal / Clip LED on the front panel is lit GREEN. 4.3 Apply a +10dBV +/- 2dBV, 1kHz sine wave to the RCA input jacks. 4.4 Verify that the Input Signal / Clip LED on the front panel is lit RED.
  • Page 123 5.4 Verify that the Output Signal / Clip LED on the front panel is lit RED. 6. Remote Control Test ® 6.1 Connect a Bose Volume Control User Interface (PC 041966) to the Remote Control input jack located on the rear panel. Set the Remote 1 control switch on the rear panel to Zone 1+2.
  • Page 124 TEST PROCEDURES Hi-Pot Test THIS IS A MANDATORY TEST Note: If an the unit under test requires disassembly as part of the repair, it MUST be Hi-Pot tested before being returned to the customer to ensure that there is no potential shock hazard. This test requires a Hi-Pot tester with a ground bond attachment to perform this test.

  • Page 125: Software Update Procedure

    This update procedure uses a Trek update program for the IZA amplifier family. Step 1: Download the Trek updater pro- gram from the IZA/ZA 2120-HZ/LZ product page on the Bose Service web site at http:// intranet.bose.com/tsg or http:// serviceops.bose.com. Install the program by double-clicking on the Trek V1.0.exe file.
  • Page 126 SOFTWARE UPDATE PROCEDURES Step 5: When the update is complete, click the“OK” button. Step 6: The amplifier will reset itself. Step 7: The installation is complete when the Trek program gets back to the connected screen. The user can now unplug the USB cable and the IZA 2120 is ready to use.

  • Page 127: Service Manual Revision History

    SERVICE MANUAL REVISION HISTORY Date Revision Description of Change Change Driven Pages Level Affected 10/15 Document released at revision 00. Service manual release 7/16 - Packing and Main parts list changes Updates 22-26 - Test procedure changes 107-123...
  • Page 128 SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE Bose Corporation The Mountain Framingham Massachusetts USA 01701 719782 P/N: -SM Rev. 01, 7/2016 (P) http://serviceops.bose.com...

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