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2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 

 

2825R-UM 

REV 3.0 

22 

6  MAINTENANCE AND TROUBLESHOOTING

 

The  following  section  describes  the  procedures  for  checking  the  operation  of  your  2825R/24  diver 
communicator, general maintenance procedures, and how to troubleshoot common problems. 

6.1 

Diver Radio Communicator Check Procedures

 

The  following  are  a  series  of  step-by-step  procedures  to  perform  a  functional  check  of  your 
2825R/24  series  communicator  using  only  a  headset.  These  steps  check  all  communication 
functions in both 2-Wire and Full Duplex (4-Wire) mode. If the communicator checks out using 
these procedures, then any communication problems are probably located somewhere else in 
the system.  

6.1.1 

Full Duplex (4-Wire) Check

 

This  procedure  checks  communicator  functions  in  Full  Duplex  (4-Wire) 
mode. 

1.  Set all volume controls to the mid-scale (halfway) position. 

2.  Turn the SPEAKER SWITCH off to avoid acoustic feedback. 

3.  Turn  on  the  communicator  and  verify  the  BATTERY  CONDITION 

INDICATOR  is  on  or  blinking.  If  the  LED  does  not  come  on  at  all, 
then  replace  or  recharge  the  battery.  If  that  does  not  resolve  the 
problem,  then  go  to  the  troubleshooting  section  to  determine  the 
cause. 

4.  Identify  the  microphone  and  headset  leads.  When  using  an  Amron 

headset, the microphone is the red banana  plug  and the  headset is 
the black banana plug. 

5.  Plug  the  microphone  lead  into  the  TENDER  MICROPHONE  (red) 

jack and the headset lead into the TENDER HEADSET (black) jack. 

6.  Don the headset and talk into the microphone. You should be able to 

hear  yourself  in  the  headset.  Adjust  the  DIVER  TO  TENDER 
VOLUME  control  and  verify  the  level  can  be  adjusted  to  a 
comfortable level. 

7.  Move  the  headset  microphone  lead  to  the  DIVER  1  MICROPHONE 

(red)  jack.  Talk  into  the  microphone.  You  should  be  able  to  hear 
yourself  in  the  headset.  Adjust  the  DIVER  TO  TENDER  VOLUME 
control  and  verify  that  the  level  can  be  adjusted  to  a  comfortable 
level. 

8.  Move  the  headset  lead  to  the  DIVER  1  EARPHONE  (black)  jack. 

Talk into the microphone. You should be able to hear yourself in the 
headset. 

9.  Repeat steps 7 and 8 for the remaining diver channels. 

This  completes  the  check  of  the  Full  Duplex  (4-Wire)  function  of  the 
communicator.  If  at  any  point  in  the  test  you  were  not  able  to  hear 
yourself  in  the  headset  as  indicated  by  the  test,  refer  to  the 
troubleshooting section to determine the cause. 

Содержание Amcom II 2825R-7002

Страница 1: ...ax 760 599 3857 Email sales amronintl com Web www amronintl com This manual and the information contained herein are provided for use as an operation and maintenance guide No license or rights to manu...

Страница 2: ......

Страница 3: ...Unscrambler 26DSP3 9 4 8 Option Controls Wireless Tender 28A Option 10 4 9 Drawing 2 Wire Connections 12 4 10 Drawing Full Duplex 4 Wire Connections 13 4 11 Drawing Push To Talk Microphone Connection...

Страница 4: ...37 8 5 Parts Identifier Front Panel Model 2825R 24 38 8 6 Parts Identifier Options 26DSP3 28A 4002 39 9 PARTS LIST GENERAL 40 9 1 Amcom II Rack Mount Model 2825R 24 41 9 2 Amcom II Rack Mount Unscram...

Страница 5: ...ender read and understand the entire manual including all warnings before first use 1 2 Electrical Specifications Input Impedance Each Input 250 Ohms Frequency Response 300 10000 Hz Common Mode Reject...

Страница 6: ...d to the communicator using the rear chassis MS connector but the front panel 5 way binding post allows for ad hoc connections when required The rear chassis contains the AC power inlet recorder outpu...

Страница 7: ...is warranty is limited to the repair of or replacement at Amron s option of defective material This warranty shall not cover defects which are the result of misuse negligence accident repair or altera...

Страница 8: ...unicator Accessories can be ordered at any time 3 2 1 Model 2401 28 Amron Heavy Duty Headset The Model 2401 28 is a heavy duty headset with boom microphone It comes equipped with color coded dual bana...

Страница 9: ...wired in 2 WIRE mode There is a speaker on off switch that allows the occupants to turn off the speaker for private conversations The operator can talk to the occupant s by using the PUSH TO TALK BUT...

Страница 10: ...te this knob clockwise to increase the volume from all the divers 4 1 5 Microphone Volume This control sets the level for the tender s microphone and or PANEL MICROPHONE Rotate this knob clockwise to...

Страница 11: ...the PANEL SPEAKER This module comes with 25 feet 7 6 meters of cable custom cable lengths are available The tender can also be connected in 2 Wire mode by stacking both the earphone black and micropho...

Страница 12: ...allows the tender to temporarily cut off the microphone of an individual diver It can be used in 2 Wire or Full Duplex 4 Wire modes 4 3 4 Crosstalk There is a separate CROSSTALK momentary switch for e...

Страница 13: ...r both the Tender and Divers This allows connection without running wires to the front panel The mating connector part number is MS 3106A 28 16P The pin functions are shown in the following table MS c...

Страница 14: ...less Option Panel Comes standard with antenna and power on off switch The ON OFF switch powers the wireless PC card inside the communicator The antenna has a swivel and tilt that allows the antenna to...

Страница 15: ...at the same time Only one module can be in the talk mode 4 8 5 Headset Jack Located on the side opposite to the ON OFF Volume Control Plug the remote wireless headset to this Jack 4 8 6 Charge Jack Lo...

Страница 16: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 12 4 9 Drawing 2 Wire Connections...

Страница 17: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 13 4 10 Drawing Full Duplex 4 Wire Connections...

Страница 18: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 14 4 11 Drawing Push To Talk Microphone Connections...

Страница 19: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 15 4 12 Drawing Operator Connections Headset...

Страница 20: ...ver AC power is interrupted The internal rechargeable battery is maintained at full charge while the unit is operating from AC power AC power indicator on the optional panel confirms the presence of A...

Страница 21: ...ined as a dual communication path a signal path a pair of wires for up link and a signal path a pair of wires for down link A common example of Full Duplex communication is the telephone Full Duplex 4...

Страница 22: ...re wire is firmly fastened by the nut The nut should not be fastened on the insulation of the wire nor should any of the bare wires touch The diver microphone will be louder in Full Duplex 4 Wire mode...

Страница 23: ...itches Cross talk DV 1 to DV 2 allows diver 1 to speak to but not hear diver 2 Cross talk DV 2 to DV 1 allows diver 2 to speak to but not hear diver 1 The tender will hear conversations on speaker or...

Страница 24: ...h Activation of this switch connects the tender to the diver necessary for two wire conversations optional for Full Duplex 4 wire conversations Always used when using the speaker for talking to the di...

Страница 25: ...t the background noise In this case it will be desirable to shut off the speaker There are other conditions when turning off the speaker is desirable situations where the nature of the work requires a...

Страница 26: ...the battery If that does not resolve the problem then go to the troubleshooting section to determine the cause 4 Identify the microphone and headset leads When using an Amron headset the microphone is...

Страница 27: ...SPEAKER You should be able to hear yourself in the headset Adjust the TENDER TO DIVER VOLUME if necessary and verify that the level can be adjusted to a comfortable level 8 Plug the microphone lead in...

Страница 28: ...mp cloth Pay particular attention to where the various front panel components attach to the panel Inspect the switches binding posts and volume controls for smooth operation 6 3 3 6 Month Check Wipe o...

Страница 29: ...very simple failures and can often be found by a very careful and close inspection of the unit or system Logical deductions and equipment familiarity can often reduce the suspected area to just one c...

Страница 30: ...ate to the diver by pressing the PUSH TO TALK BUTTON and talking into the PANEL SPEAKER If this solves the problem then the tender headset may be wet or defective If the tender is using the PANEL SPEA...

Страница 31: ...uickly determine the source of the acoustic feedback is to cover each active microphone with your hand one at a time Another method is to adjust the volume controls one at a time The volume control th...

Страница 32: ...rly seated in the PUSH TO TALK JACK If the tender is using the PANEL SPEAKER as the microphone with the PUSH TO TALK BUTTON make sure the SPEAKER SWITCH is turned on If neither of these solves the pro...

Страница 33: ...ing industry Technically it is defined as a single communication path using a minimum of 2 wires in a communication cable Being a single path there can only be one talker at a time Commonly the diver...

Страница 34: ...cult to avoid feedback path that can also cause oscillation In 4 Wire mode there are two sets of wire pairs One pair carries the signal from the diver microphone to the communicator microphone input T...

Страница 35: ...s around 175 Ohms These two factors combine to create a serious volume imbalance which requires higher volume settings resulting in more noise and less system stability 7 3 Why Full Duplex 4 Wire Amro...

Страница 36: ...to DIVER MICROPHONE red jack and the black banana plug to DIVER EARPHONE black jack 3 Set the volume controls to mid range on the communicator Turn on the communicator There may be some acoustic feed...

Страница 37: ...ctrical and mechanical details of the diver communication unit The corresponding parts lists for each drawing are detailed in the parts lists section or are included as part of the drawing All drawing...

Страница 38: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 34 8 1 Schematic 2825R 24...

Страница 39: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 35 8 2 Schematic Option 26DSP3...

Страница 40: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 36 8 3 Schematic 28A Wireless Tender Option...

Страница 41: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 37 8 4 Schematic 4002 Chamber Lock Call Option...

Страница 42: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 38 8 5 Parts Identifier Front Panel Model 2825R 24...

Страница 43: ...2825R TWO DIVER RACK MOUNT COMMUNICATOR USER MANUAL 2825R UM REV 3 0 39 8 6 Parts Identifier Options 26DSP3 28A 4002...

Страница 44: ...date To Order Replacement Parts Contact Amron international Inc 1380 Aspen Way Vista California 92081 U S A Telephone 760 208 6500 Fax 760 599 3857 Email sales amronintl com Web www amronintl com When...

Страница 45: ...T PANEL ASSEMBLY N S 570 1006 02 PC CARD ASSEMBLY UNSCRAMBLER DSP3 N S 2405 28 MICROPHONE PUSH TO TALK N S 2890 04 BATTERY RECHARGE 6V GEL 5AMP N S MS 3106A 28 16P MS CONN CABLE20 PIN M N S MS 3057 16...

Страница 46: ...sembly REF PART DESCRIPTION 1 2825R 24 26DSP3 001 PANEL FRONT NOT FOR SALE 3 SA818 SPEAKER 8 OHM 15 WATT 4 SW 201 SWITCH TOGGLE DPDT 5 SW 208 SWITCH TOGGLE DPDT MOM 23 SWB 0001 BOOT TOGGLE SOFT GRAY 7...

Страница 47: ...ITCH TOGGLE DPDT MOM 1 LEDGREEN LED GREEN BRITE 1 LT2462 24 D51 LED BI COLOR RED GREEN 2 0034 6019 FUSE 3 15A 250V MICRO QUICK 2 0034 6617 FUSE 1 6A 250V SLOW MICRO 2 LEDHOLDER BLK 25 MOUNTING CLIP FO...

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