AUSTRALIAN MONITOR AMIS ZRM4, Service Information

Page 1: ...ralian Monitor 1 Clyde Street Silverwater NSW 2128 Australia 61 2 9647 1411 www australianmonitor com au SERVICE INFORMATION ZRM4 ROUTING MIXER CONTENTS OPERATION MANUAL SCHEMATIC DIAGRAMS SERVICE BULLETIN ...

Page 2: ...6 X 4 ROUTING MIXER INSTALLATION AND OPERATION MANUAL AMIS ZRM4 ...

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Page 4: ... installed in remote zones allowing for a volume range from off to whatever the master level on the AMIS ZRM4 relevant zone output is set to Alert Evacuation Bell Pre Announce tones are provided on board The AMIS ZRM4 is a compact yet extremely versatile zone routing mixer which makes the complex task of multizone signal routing simple cost effective INTRODUCTION 3 FRONT PANEL 4 REAR PANEL 5 INTER...

Page 5: ...there is signal present and red if the signal is approaching clip The LED begins to light red when the internal signal level is 6dB before clip and is solid red when it is 3dB before clip Note that the front panel level control is post status LED and as such the status LED is NOT affected by the level control See internal adjustment section on page 6 OUTPUT CONTROL SECTION OUTPUT LEVEL CONTROLS Th...

Page 6: ...ONS These connections are used to trigger the internal tones Only one tone can be triggered at a time Triggering occurs by connecting the ALERT EVAC BELL or PRE terminal to COM The pre announce and bell tones are routed along with input channel 1 whilst the evac and alert tone are always routed to all outputs VCA Each output level may be controlled by a RC1 remote wall panel or 500k ohm log A pot ...

Page 7: ... the XLR input is suitable for use with microphones in the LINE position the XLR input is suitable for use with a balanced line level signal NOTE Both MIC LINE switches must be in the same position for correct operation of the balanced input The MIC LINE switches only affect the XLR input GAIN TRIM The input gain can be cut or boosted by up to 15dB using this control This control affects both the ...

Page 8: ...designated priority input NOTE The high pass filter has a knee around 160Hz and a roll off of 6dB octave Using the HPF helps to eliminate thumps and rumble often heard through paging mics CONNECT THE OUTPUTS Turn the amplifiers off Connect the AMIS ZRM4 s outputs to the amplifiers line level input Check that the AMIS ZMR4 is on then turn on the amplifiers If the amplifiers have a level controls se...

Page 9: ...l will have no effect on the signals from input channel 1 or any of the tones generated by the tone module This is so that the paging can not be turned off in a zone it has been assigned to If paging is too loud in a zone the master output level control for that zone should be turned down NOTE If using a 500k ohm pot the connections should be made to the wiper terminal and the anti clockwise termi...

Page 10: ...AMIS ZRM4 INSTALLATION OPERATION MANUAL PAGE 9 BLOCK DIAGRAM ...

Page 11: ...PAGE 10 AMIS ZRM4 INSTALLATION OPERATION MANUAL SPECIFICATIONS ...

Page 12: ...or 24 to 34v DC regulated 600mA max SENSITIVITY input required for 0dBu out RCA IN 26dBu to 4dBu 39mV to 1 23 V XLR LINE IN 26dBu to 4dBu 39mV to 1 23V XLR MIC IN 60dBu to 30dBu 0 78mV to 25mV MAX LEVEL IN 14 1Vrms 25dBu MAX LEVEL OUT 15 4Vrms 26dBu FREQUENCY RESPONSE 5Hz to 22kHz 0dB 3dB THD less than 0 1 NOISE 90dBu 20Hz 20kHz all pots centred CROSSTALK 65dB 1kHz PHANTOM POWER 15VDC ...

Page 13: ... Email sa audiotelex com au PERTH WA SALES 299 Fitzgerald Street West Perth WA 6005 PO Box 404 North Perth WA 6906 Phone 08 9228 4222 Fax 08 9228 4233 Email wa audiotelex com au AUCKLAND NZ SALES Unit B 11 Piermark Drive Albany 1331 New Zealand PO Box 512 Albany 1331 Phone 09 415 9426 Fax 09 415 9864 Email audiotlx nznet gen nz AUSTRALIA AND NEW ZEALAND www australianmonitor com au INTERNATIONAL S...

Page 14: ...01A LM833N 8 5 6 7 4 8 IC201B LM833N 8 15 15 15 15 R201 4k7 R202 4k7 R203 100k R214 22k C201 10u C202 10u C203 10u R207 680 R204 680 R209 33k R208 33k SW201A SW201B SW201C SW201D R213 22k C206 47p C207 47p 15 R205 5k6 R206 5k6 C204 1u R211 4k7 R210 18k R212 6k8 C205 22p CW CCW VR201 47k X201 3 CW CCW VR204 47K CW CCW VR203 47K C211 33n C212 2n7 R224 10k X201 1 X201 2 5 6 7 4 8 IC202B LM833N 8 4 8 ...

Page 15: ...3N 8 5 6 7 4 8 IC401B LM833N 8 15 15 15 15 R401 4k7 R402 4k7 R403 100k R414 22k C401 10u C402 10u C403 10u R407 680 R404 680 R409 33k R408 33k SW401A SW401B SW401C SW401D R413 22k C406 47p C407 47p 15 R405 5k6 R406 5k6 C404 1u R411 4k7 R410 18k R412 6k8 C405 22p CW CCW VR401 47k X401 3 CW CCW VR404 47K CW CCW VR403 47K C411 33n C412 2n7 R424 10k X401 1 X401 2 5 6 7 4 8 IC402B LM833N 8 4 8 2 3 1 IC...

Page 16: ...3N 8 5 6 7 4 8 IC601B LM833N 8 15 15 15 15 R601 4k7 R602 4k7 R603 100k R614 22k C601 10u C602 10u C603 10u R607 680 R604 680 R609 33k R608 33k SW601A SW601B SW601C SW601D R613 22k C606 47p C607 47p 15 R605 5k6 R606 5k6 C604 1u R611 4k7 R610 18k R612 6k8 C605 22p CW CCW VR601 47k X601 3 CW CCW VR604 47K CW CCW VR603 47K C611 33n C612 2n7 R624 10k X601 1 X601 2 5 6 7 4 8 IC602B LM833N 8 4 8 2 3 1 IC...

Page 17: ...C40 10u C13 47p R12 10k R11 10k OUTPUT A OUTPUT B OUTPUT C OUTPUT D SW1A SW2A SW3A SW4A R94 470R R93 470R R92 470R R91 470R X2 12 X2 11 X2 10 X2 9 5 6 7 4 8 IC17B LM833N 8 C34 100u C33 100u C35 100u C36 100u X2 5 X2 6 X2 7 X2 8 GP1 6 GP0 7 gnd 8 5 1 GP5 2 GP4 3 GP3 4 GP2 5 PIC12F675 IC10 PIC12F675 GP1 6 GP0 7 gnd 8 5 1 GP5 2 GP4 3 GP3 4 GP2 5 PIC12F675 IC9 PIC12F675 D7 D8 D9 D10 D5 2v7 D6 2v7 X1 9...

Page 18: ...MES ALARMS 15 15 5 5 MUTE 5 R700 100 X4 5 CORE RIBBON CABLE 1 X5 PCB6337 Tone module triggers Tone Generator R57 1k R56 1k R47 1k R48 1k 5 V1 V2 R9 220R R10 220R TR1 R8 220R R7 220R D1 D2 D4 D3 C8 470u RW 5 RH 3 U D 2 INC 1 GND 4 5 8 RL 6 CS 7 IC15 X9313 C1 10n C2 1n R2 22k R5 10k R6 22k C3 100n C4 470u C9 470u IN gnd OUT IC4 LM7815 IN gnd OUT IC2 LM7805 C11 100u C7 100u C10 100u IN gnd OUT IC3 LM...

Page 19: ...eason for the premature failure is due to a change in the ripple current rating of the capacitor manufacturer that occurred around January 2008 Note to this date units manufactured before Dec 2007 are believed to be unaffected A product recall is not necessary as the problem is believed to be a relaxation of the performance specification tolerance of the capacitor and therefore only a small portio...

Page 20: ...ion Failures modes include a total failure of the bridge rectifier BR1 IC1 MOSFET devices V1 and V2 C8 and C9 Solution Replacement of the electrolytic capacitors in the power supply section with higher operating temperature low impedance parts is recommended in the interest of longevity and reliable operation Replace the critical component as per the table below Recommended Part Designators Value ...