Bogen-TBL1S-Operation-Manual 电路图 维修手册.pdf

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1、TBL1S Transformer Balanced Line Input Module Features Transformer-isolated line level input Gain/Trim control Bass and treble Audio Gating Gating with threshold and duration adjustments Variable signal ducking when muted Fade back from mute 4 levels of available priority Can be muted from higher pri

2、ority modules Can mute lower priority modules Pluggable screw terminal strip 600/10K GATE ENABLE/ DISABLE BUS ASSIGNMENT BUS A BUS B Printed in Taiwan. 2007 Bogen Communications, Inc. 54-2084-01D 0704 Specifications subject to change without notice. 50 Spring Street, Ramsey, NJ 07446, U.S.A. 201-934

3、-8500; Fax: 201-934-9832 Block Diagram Input Wiring Balanced Connection Use this wiring when the source equipment supplies a balanced, 3-wire output signal. Connect the shield wire of the source signal to the “G” terminal of the input. If the “+” signal lead of the source can be identified, connect

4、it to the plus “+” terminal of the input. If the source lead polarity cannot be identified, connect either of the hot leads to the plus “+” terminal.Connect the remaining lead to the minus “-” terminal of the input. Note: If polarity of the output signal versus the input signal is important, it may

5、be necessary to reverse input lead connections. Unbalanced Connection When the source device provides only an unbalanced output (signal and ground), the input module should be wired with the - input shorted to ground (G). The unbal- anced signals shield wire is connected to the input modules ground

6、and the signal hot wire is connected to the + terminal.Since unbalanced connections do not provide the same amount of noise immunity that a balanced connection does, the connection distances should be made as short as possible. RadioFans.CN 收音机爱 好者资料库 Gain Provides control over the level of input si

7、gnal that can be applied to the internal signal buses of the main unit. Allows a way to balance the input levels of various devices so that the main unit controls can be set to relatively uniform or optimum levels. Treble (Treb) The Treble control provides +/- 10 dB at 10 kHz.Clockwise rotation prov

8、ides boost; counterclockwise rotation provides cut. Center position provides no effect. Gate - Threshold (Thresh) Controls the amount of input signal level necessary to turn the modules signal output on and mute lower priority modules. Clockwise rotation increases the necessary input signal level re

9、quired to produce audio output and mute lower priority modules. Gate - Duration (Dur) Controls the amount of time the signal output and priority muting of the module remains applied to the main units buses after the input signal falls below the required minimum signal level (set by the threshold con

10、trol). Ducking (Duck) Controls the modules output level when the module is muted or gated. The range is adjustable from no reduction in level to full muting of the out- put signal. Module Installation 1.Turn off all power to the unit. 2.Make all necessary jumper selections. 3.Position module in fron

11、t of any desired module bay opening, making sure that the module is right-side up. 4.Slide module on to card guide rails. Make sure that both the top and bottom guides are engaged. 5.Push the module in to the bay until the faceplate contacts the units chassis. 6.Use the two screws included to secure

12、 the mod- ule to the unit. WARNING: Turn off power to unit and make all jumper selections before installing module in unit. Jumper Selections Priority Level* This module can respond to 4 different levels of priority. Priority 1 is the highest priority. It mutes modules with lower priorities and is n

13、ever muted. Priority 2 can be muted by Priority 1 modules and can mute modules set for Priority Level 3 or 4. Priority 3 can be muted by either Priority 1 or 2 modules and can mute Priority 4 modules.Priority 4 modules are muted by all higher priority mod- ules. Remove all jumpers for “no mute” sett

14、ing. *The number of priority levels available is determined by the amplifier the modules are used in. Gating Gating (turning off) of the modules output when insufficient audio is present at the input can be disabled. Detection of audio for the purpose of muting lower priority modules is always activ

15、e regardless of this jumper setting. Bus Assignment This module can be set to operate so that the mono signal can be sent to the main units A bus, B bus, or both buses. Balanced Input Transformer balanced, line-level input on pluggable screw terminal strip. Bass The Bass control provides +/- 10 dB a

16、t 100 Hz. Clockwise rotation provides boost; counterclockwise rotation provides cut. Center position provides no effect. Impedance Selector This module can be set for two different input impedances. When connecting to a 600-ohm source,it is desirable to have a 600-ohm matching input impedance. For t

17、ypical source equipment, use the 10k-ohm setting. RadioFans.CN 收音机爱 好者资料库 TBL1S Transformer Balanced Line Input Module Features Transformer-isolated line level input Gain/Trim control Bass and treble Audio Gating Gating with threshold and duration adjustments Variable signal ducking when muted Fade

18、back from mute 4 levels of available priority Can be muted from higher priority modules Can mute lower priority modules Pluggable screw terminal strip 600/10K GATE ENABLE/ DISABLE BUS ASSIGNMENT BUS A BUS B Printed in Taiwan. 2007 Bogen Communications, Inc. 54-2084-01D 0704 Specifications subject to

19、 change without notice. 50 Spring Street, Ramsey, NJ 07446, U.S.A. 201-934-8500; Fax: 201-934-9832 Block Diagram Input Wiring Balanced Connection Use this wiring when the source equipment supplies a balanced, 3-wire output signal. Connect the shield wire of the source signal to the “G” terminal of t

20、he input. If the “+” signal lead of the source can be identified, connect it to the plus “+” terminal of the input. If the source lead polarity cannot be identified, connect either of the hot leads to the plus “+” terminal.Connect the remaining lead to the minus “-” terminal of the input. Note: If p

21、olarity of the output signal versus the input signal is important, it may be necessary to reverse input lead connections. Unbalanced Connection When the source device provides only an unbalanced output (signal and ground), the input module should be wired with the - input shorted to ground (G). The

22、unbal- anced signals shield wire is connected to the input modules ground and the signal hot wire is connected to the + terminal.Since unbalanced connections do not provide the same amount of noise immunity that a balanced connection does, the connection distances should be made as short as possible. RadioFans.CN 收音机爱 好者资料库