Kamesan KS T2000_operating Manual
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Kamesan KS-T2000 11 Front panel Front panel Front panel Front panel Front panel Front panel Front panel Front panel The front panel contains the individual channel controls, as well as some master controls, etc. For details of the operation of these controls, see the appropri- ate sections of this manual. Front panel 3 +-20VU 0 +4-30-20 -70Dy-M Dy-M+4-30 -20+4-70 -30Line A- B 8 4 P Line A- B 8 4 P Line A- B 8 4 P Dy-M MONIR L R LRL R + LR L/R L -20 -70 05 - -4005 - -4005 - -40 Headphone jack (“Monitoring” on page 16) Monitor level (“Monitoring” on page 16) Monitor selector (“Monitoring” on page 16) Input trim control on each channel (“Adjusting the in- put gain” on page 17) Input mode se- lector (“Input connections” on page 7)Power switch and battery meter (“Bat- teries and power” on page 12External monitor switch (“External monitoring input” on page 8) VU meter light switch Input fader (“Channel mixing” on page 16 Low--cut filter switch “Low-cut filtering” on page 16VU meter (“Monitoring” on page 16 Output assign- ment switch “Routing the in- puts” on page 16Oscillator switch (“Set- ting and monitoring the output level” on page 18
Kamesan KS-T2000 12 The Kamesan KS-T2000 can use any standard type of battery: manganese, alkaline, nickel-cadmium, nickel-hydride or lithium- ion. Four type 3 (AA) size batteries are required. In normal use and temperature conditions, a set of alkaline bat- teries will provide between five and six hours of operation. In addition, the Kamesan KS-T2000 can accept power from a suitable power adaptor (described in “Using an AC adapter” on page 14). The three-segment LED display by the power switch (top right of the front panel) gives the battery status as shown in the illustration here. The number of LEDs lit shows the battery status. When only the bottom orange LED is lit, it is time to replace the batteries with a new set (30 minutes to 1 hour’s battery life remains). If there is no battery life at all, none of the LEDs are lit, and the batteries should be replaced immediately. If the unit is not to be used for an extended period of time, remove the batteries from the unit. Do not leave dead batteries in the unit. The batteries are contained in a standard battery holder, which slides out for easy replacement. Additional battery holders can be purchased and “ready-loaded” with spare batteries for easy replacement. Batteries and power Checking the batteries Replacing the batteries GOOD > 5hrs (green) FAIR 2–5hrs (green) REPLACE 0.5–1hr (orange)
Kamesan KS-T2000 13 Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power 1.Remove the cover on the left (INPUT) side of the unit. You may need to remove the touch fastener case strap to access the holder door. 2.Open the door using the catch located by the red (+) mark, and remove the battery holder as shown above. 3.Remove any old batteries in the holder and place new batter- ies in the holder. Take care that the batteries are inserted correctly as shown above, with the polarity correct. Never mix batteries of different types, or discarded (or par- tially-discharged) and new (or freshly-charged) batteries. Always follow the battery manufacturer’s instructions for charging rechargeable batteries. Never attempt to recharge batteries which are not designed for this purpose. 4.Replace the battery holder into the Kamesan KS-T2000 and close the battery door. Replace the case strap in its original position. The battery holder should be inserted with the end with two battery contacts entering the compartment first, and with the single metal rivet towards the hinge of the holder door (as shown in the illustra- tion above. 5.Test the battery power and polarity with the power switch (see “Checking the batteries” on page 12).
Kamesan KS-T2000 14 Note that when new batteries are inserted, the indicators may show the middle or low battery condition. This is because the power LEDs monitor the actual real-time battery usage, and when the unit is ac- tually in use (phantom power, headphone amp, etc.), the true bat- tery status will be shown. Do not use the VU meter light more than necessary (this can result in considerable savings). Turn off the power to the Kamesan KS-T2000 when it is not in use (“resting” the batteries can increase the battery life very significantly). Setting the XLR output level switch to the +4 setting can reduce battery consumption. Cold batteries have a shorter life than warm ones. In winter or other cold conditions, you may want to keep the batteries warm when they are not in use. At 0°C (32°F), battery life is about 60% less than at 20°C (68°F). As long as the connector conforms to the polarity of the Kamesan KS-T2000 connector (tip negative), a BP-90-type battery can be used for external power of the mixer. The Kamesan KS-T2000 can use one of two optional external adapters: PS-M12 mini power supply SS-40611 MkII low noise power supply Alternatively, any other power supply may be used (although this is not recommended), provided that it conforms to the following specifications: Connector: BP-90 type with tip negative Voltage: >9.0 V and 0.5 A Any non-Kamesan AC adapter should also incorporate ripple reduction circuitry. Extending battery life Using an external battery Using an AC adapter
Kamesan KS-T2000 15 Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power Batteries and power The use of any adapter other than the type specified here may re- sult in damage to the Kamesan KS-T2000, other equipment, or even result in overheating and fire. For this reason, it is essential that only those adapters recommended and sold by Kamesan are used. Connect the adapter connector to the DC IN connector of the Ka- mesan KS-T2000, making sure that the polarity of the adapter connector matches that of the Kamesan KS-T2000. When DC power is supplied to the Kamesan KS-T2000, this takes priority over any internal batteries (which are not used when the adapter is connected and power is supplied). When the adapter is disconnected, the batteries are used again.
Kamesan KS-T2000 16 The following explains some of the principles of operating the Kamesan KS-T2000 when all the connections have been made: Adjust the relative levels of the inputs by using the level controls (faders). Turning these controls fully counterclockwise attenuates the sig- nals, and turning them fully clockwise boosts them. The nominal position (neither cut nor boost) is marked as shown here. To make the best use of the Kamesan KS-T2000’s gain structure, we recommend setting the channel fader control to this nominal position, and adjusting the trim level to obtain the appropriate reading on the VU meter (as described in “Adjusting the input gain” on page 17). Each input can be assigned to either the left master output, the right master output, or both. Use the L and R switches to send the input signals to the left and right outputs: When these switches are in the up position, the input is assigned to the appropriate output bus. The Kamesan KS-T2000 provides three low-cut (high- pass) filters at 160 Hz with a slope of –12 dB/octave. Use these independently-switchable filters (one on each channel) to counteract the effects of wind noise, rumble, etc. Set the switch to the up position to engage the filter. Use the headphone jack to monitor the outputs. The volume output from the headphones is adjusted with the (yellow) control. Operations Channel mixing Routing the inputs Low-cut filtering Monitoring Nominal position R L
Kamesan KS-T2000 17 Operations Operations Operations Operations Operations Operations Operations Operations The signal or signals being monitored and metered are set using the (green) monitor selection control. The [L+R] setting is also used for the external monitoring source (see “External monitoring input” on page 8). Before adjusting the inputs: 1.Make sure that the correct input mode has been selected (“Input connections” on page 7). 2.If the low-cut filter is to be used on the input channel, make sure that it is enabled (“Low-cut filtering” on page 16). 3.Ensure that the input is routed appropriately (“Routing the inputs” on page 16). 4.Ensure that an appropriate monitoring mode is selected (“Monitoring” on page 16). 5.Turn down all input faders, except the one which is to be adjusted, which should be set to the nominal position. 6.While the input sound is being input through the micro- phone, etc., turn the channel’s input gain control so that the VU meter indicates a healthy level (not into the red, but “kicking” the 0 mark is fine). 7.When the level has been set up to your satisfaction, turn the channel’s input fader all the way down, and repeat the pro- cess for all the other channels in turn.Monitoring switch settings Switch settingMeter displaysChannel Comment LR [L+R]L & R sum L & R sum summed busses for checking Lleft left monitor left bus only L/Rleft left right Normal stereo operation Rright right Monitor right bus only Adjusting the input gain R + L R L/R L
Kamesan KS-T2000 18 The gain level for all types of microphone ranges from –30 to – 70 dBs (marked in white; the –40 and –50 points are marked for convenience), and the gain level for line-level sources ranges from –20 to +4 dBm (marked in blue). The head and mixer amps of the Kamesan KS-T2000 allow con- siderable leeway. On the input stage, there is about 28 dB avail- able, and on the output stage, about 17 dB is available To help you match the levels of the Kamesan KS-T2000 with the recorder connected to the outputs, the mixer is fitted with an in- tegral 1 kHz line-up oscillator. In order to see the output level using the oscillator: 1.Make sure that both the OUTPUT level switches are set to the correct value (usually +4). 2.Turn the power on (up), and then turn the oscillator switch on (up). 3.To monitor both channels together, set the monitoring selec- tion switch to the L/R setting (see “Monitoring” on page 16 for an explanation of the monitoring switch settings). 4.Adjust the level of the outputs so that the VU meter reads 0dB. 5.Remember to turn the oscillator off when the adjustment has been made. Setting and monitoring the output level
Kamesan KS-T2000 19 Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Inputs Input levels MIC–70 to –30 dBs (balanced inputs) LINE–20 to +4 dBm (balanced inputs) External monitor input0dBs Input impedance MIC3.0 kΩ(dynamic microphone) LINE600Ω External monitor input600Ω Input headroom > 30 dB (pre-fader input) Outputs Output levels MAIN L/R +4/–60 dBm switchable (transformer balanced) Cannon 3-pin Unbalanced outputs–60 dBm (compatible with impedance 600Ω to 10 kΩ (RCA pin jacks) Monitor outputs +10 dBs/50Ω (maximum 8 W stereo) Maximum output a a. The above measurements are all made with the battery voltage at 6.0 V MAIN L/R +23 dBm (600Ω @ +4 setting) Unbalanced outputs–40 dBs (10 kΩ) Monitor outputs –10 dBs (50Ω), stereo jack Audio performance figures Frequency response50 Hz to 15 kHz (±0.5 dB) Noise level MIC (–70)
Kamesan KS-T2000 20 Other parameters Microphone power P-48 (+48 V phantom powering)Maximum power: 10 mA A-B (12 V) Maximum power: 30 mA LCF (low-cut filter)160 Hz (–12 dB/octave slope) Oscillator 1 kHz (±5%) Electrical characteristics Internal power supply4 x type 3 (AA) dry-cell batteries, mounted in supplied standard battery holder Battery life Better than 6 hours with alkaline batteries at normal temperature conditions External power Voltage +9.0 V to 16.0 V Current Nominal 0.15 A, Maximum 0.5 A Physical characteristics Dimensions (w x d x h excluding controls)201 x 140 x 47 (mm) 8 x 4 x 2 (in) Weight (main unit only, excluding case and batteries1kg (2.2lb.)