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Vax M-9000 operating instructions 119, Troubleshooting

Models: M-9000

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20. TROUBLESHOOTING

Symptom	Possible Cause	Remedy

Noise generated.	Module mounting screw not	If this screw is loose, noise may be produced.
	securely tightened.	Ensure that the screw is tightened.

Excessive noise.	Incorrect module input	The unit is designed to digitize audio signals
	sensitivity setting.	with an AD converter and vary the input level
		with a digital volume control.
		Therefore, noise increases if the input or
		output volume control is set to a level higher
		than 0 dB while the AD converter input is kept
		low.

Sound distorted.	Incorrect module input	The unit is designed to digitize audio signals
	sensitivity setting.	with an AD converter and vary the input level
		with a digital volume control.
		Therefore, when an extremely large input is
		fed into the AD converter, the voice remains
		distorted even if the volume is decreased.

Phantom power not	D-001T module mounting	If this screw is loose, phantom power is not
supplied.	screw not securely tightened.	supplied. Ensure that the module mounting
		screw is tightened.

Phantom power not	Phantom power set to OFF	If phantom power is set to OFF in D-001T
supplied.	in D-001T module input	module input setting, phantom power is not
	setting.	supplied. Set phantom power to ON in the
		setting.

Condenser microphone	Condenser microphone of	The D-001T module's phantom power supplies
does not operate	the type powered by over	+24 V.
correctly.	+24 V is used.	If using a condenser microphone powered by
		over +24 V, separately prepare phantom
		power supply equipment recommended by the
		equipment manufacturer.

Amplifier malfunctioned	Incorrect item or parameter	Check the related setting items and set
(does not operated as	setting.	contents.
intended.)

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Vax M-9000 operating instructions 119, Troubleshooting

Contents

Operating Instructions Series AmplifiersTable of Contents Setting Dimensional Diagrams Specifications FCC Requirements Important Safety InstructionsWhen the Unit is in Use Safety PrecautionsSafety Symbol and Message Conventions When Installing the UnitOver 10 cm General Description Features Handling Precautions Installation PrecautionsNomenclature and Functions Input meter status indicator Emergency indicatorUnit indicator Fault indicatorOutput level indication Output meter status indicatorOutput meter Changing the indicated channels on the Level output meter 9240SH 90009060DH, A-9120DH, A-9120DL 9060S, A-9120SSpeaker output terminal Mode switchBlank panel accessory Preamplifier output Power amplifier input terminals2. T-001T Audio Output Expansion Module Optional Modules1. D-001T 2-Channel Input Module Monaural input terminals 1Control input terminal Contact ZP-001T Zone Paging ModuleTelephone input terminal TEL AN-001T Ambient Noise Sensor Input Module 4. C-001T Control I/O Expansion ModuleControl input terminal in 1, 2, 3, 4, 5, 6, 7, 8, E Control output terminal OUT 1, 2, 3, 4, 5, 6, 7, 8, EFront Side Rear Optional AccessoriesAN-9001 Ceiling Mount Microphone Control output terminal E, OUT ZM-9001 Zone ManagerBottom Control buttons 1 ZM-9002 Zone Manager Volume controlDescription of Mixer Mode Application example for a ball room, meeting room, etc General DescriptionANC Ambient Noise Control function AN-001T only GlossaryKeys and knobs Power ON/OFFOperation Basic OperationOutput channel ON/OFF Changing the output parametersInput channel ON/OFF Recalling Scene Memory Zone Paging Paging port modeRing signal mode Releasing Key Lock Example when input keys are lockedOperation Example Setting Menu Flow SettingTip Basic Setting OperationMoving to setting screens Setting content selection Returning to the upper hierarchy level Setting flow chart Input Setting43-A15 1 I N Input setting itemsA1 Input gain setting A2 Input channel name setting+ 1 2 0 HPF LPF D E = P a G I N G P O R T A14 Operation mode setting when the ZP-001T is usedM P L E T I M E X I M U M L E V E LI N R a T I O Priority A24 Ducker ON/OFF setting when the AN-001T is not usedC K E R O F F C K E R P R I O R I T YAudio Output Setting T 1 O U T 122SUBWFER*1 B5 Speaker parameter presettingSpeaker EQ settings E Q = a L L F L a T3SUBWOOFER*4 1SUBWOOFER*22SUBWOOFER*3 HX-5E LOCUT*8 SR-S4 SINGLE*6B7 HPF and LPF settings F 4 0 0 H Z L P F 1 B9 Delay ON/OFF setting L a Y O F F B8 Compressor setting M P R E S S O R O F FPage Interlock output control setting Utility SettingM a T T E N U a T E G I N G O F FN = 1 2 3 4 5 6 7 8 9 a B C N 0 1 N O N EN = M O T E 1 O U T P U T U T =U T = 1 2 3 4 5 6 7 8 9 a B C M O T E 1 V O L U M EN S E L S Y N C O N C17 Lock status display Y L O C K U N L O C K E D C18 Password settingC19 Gate release time setting T E R E L E a S E T I M E C20 Communication speed bps setting R I a L S P E E D = 5C23 Memory initialization I T I a L I Z E O K ? C22 Firmware version indication R M V E R S I O N = 1.1Paging function Paging SettingSP1 SP2 SP3 SP4 65-D2 G I N G T R I G Z P Paging setting itemsD1 Paging input channel setting G I N G O N I N G I N G D I S a B L E O F F G I N G S Y N C O F FControl input terminal When the control input function Is set to EMG-MUTE p -E16 Control Input Function SettingN 0 1 L O a D B a N K Control input function setting itemsE1 Control input function setting N 0 1 N O N E E11 Input/Output channel number selection N 0 1 C H O N E8 Volume increasing level settingE9 Volume decreasing level setting N 0 1 V O L D O W N N 0 1 V O L U PN 0 1 E M G M U T E E14 Interlock output control settingE17 Interlock output control setting N 0 1 S Y N CPage Control Output Function Setting F4 Scene memory bank number selection U T 0 1 S C E N E Control output function setting itemsF1 Control output function setting U T 0 1 N O N E F6 Input/Output channel number selection U T 0 1 C H O N I N Util Key Lock Function SettingKeys that can be locked ALLAll-key lock ON/OFF p -G1 Y L O C K O U T P U T O F F Y L O C K a L L O F FY L O C K I N P U T O F F Y L O C K P O W E R O F F G6 Setting key lock ON/OFFG7 Power switch lock ON/OFF Y L O C K U T I L O F FPassword setting Key lock setting operation Scene memory save p -H3 Memory SettingV E A DE N E S E T T I N G S a V E W E R O N L a S T S T a T E H5 Scene memory erasure when Erase is setA S E Storing Scene Memory HOW to Store or Erase Scene MemoryPress for over 2 seconds Erasing Scene MemorySetting the Scene Memory to be Recalled at Power-On Restoring Factory Default Setting Default Setting Table ALL Flat Audio output settingsTrigger VOX Utility settingsPaging input settings Trigger C-INControl input function Volup Control input function settingControl output function setting Control input function LoadbankScene memory P-ON Memory settingsScene memory Save Scene memory EraseChannel Numbers and Terminal Numbers Module InstallationModule Installation Module CombinationInsert the C-001T module in the open slot Module Installation Examples Control inputs 1 Remote volumes 1Connections Control I/O Terminal ConnectionsControl outputs 1 Level trigger Operation by control input Pulse triggerDirect output terminal connection 100Transformer output terminal connection Control output terminal 10114.3. C-001T Module Connections Control input terminalAN-001T and AN-9001 Connections RS-232C Connector Connection102 Cable end treatment Connector connection103 Removable Terminal Plug ConnectionRack Mounting Bracket Attachment 104Tips AN-9001 Installation105 Front Bottom Dimensional Diagrams106 AN-9001Front Bottom Front View without panel Side 107ZM-9001 ZM-9002System requirements HOW to USE the Supplied Software108 109 Installing the SoftwareConnecting the Unit to the PC 110 Setting the Communication Port and SpeedUpdating the Firmware 111112 Storing or Recalling Parameters Set at the Unit 113114 Screen indications and their descriptions 115Monitoring the Units Operation Status 116 Step 117Activating the Control Input 118 Error Indications119 Troubleshooting120 Block DiagramZP-001T Zone Paging Signal Flow Diagram121 Slot Level Diagram122 ADC LPF123 Specifications 24.1. M-9000124 Accessories24.2. A-9060DH, A-9120DH 125126 24.3. A-9120DL 127128 24.4. A-9060S, A-9120S 129130 24.5. A-9240SH 131132 Cmrr 13324.6.1. D-001T 24.6.2. T-001T 134ZP-001T 13524.6.3. C-001T AN-001T 136ZM-9002 137AN-9001 ZM-9001200604