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CONTROL AMPLIFIER C-700u

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6.   External pre switch (EXT PRE)

Input selector switch to select the external pre-input termi-
nal (EXT PRE) on the rear panel

ON:

  Outputs sound signals connected to EXT Pre terminal 

(pre-amplifier, AV amplifier etc.) directly.

OFF:

  Plays back a sound source selected by the input se-

lector.

Holding down the switch for approx. 1 second toggles the 
external pre switch ON and OFF.
When the external pre switch is set to ON, the external pre 
indicator lights up.

When the main power switch is turned off or this unit is 
in the standby state, external pre-input signals are always 
provided from the unbalanced output terminal regardless of 
this switch setting. The input signals connected to the ex-
ternal pre-input terminal are not provided from the balanced 
output terminal.

When the external pre switch is set to ON, the volume con-
trol of this unit cannot adjust the sound volume.
Volume adjustment shall be performed at the input device 
side such as the pre-amplifier connected to the external 
pre-input terminal.

If a device that has no volume adjustment function such as 
a CD player is connected to the external pre-input terminal, 
the volume control of this unit cannot function, and there-
fore, sudden loud sound may be generated when the exter-
nal pre-input is selected, which may cause hearing loss or 
damage to the speakers.

For such input devices, be sure to use a pre-amplifier or the 
like equipped with the sound volume adjustment function. 
After checking the sound through the speakers with volume 
lowered, adjust the volume to your favorite level.
When changing the connected devices, be sure to turn off 
the main power switch or set the unit to the standby state.

7.   Output mode selection switch  

(OUTPUT MODE)

Selects an output mode from the following 3 kinds: unbal-
anced output, balanced output, and both (unba 
balanced) output.
By pressing this switch, the output changes as follows: UN-
BAL

BAL

BOTH

UNBAL ...

•  Unbalanced output (UNBAL) 

Sound comes out from LINE-1 and LINE-2.

•  Balanced output (BAL) 

Sound comes out from BAL LINE-1 and BAL LINE-2.

•  Both output (BOTH)

The unbalanced outputs, LINE-1 and LINE-2, and the 
balanced outputs, BAL LINE-1 and BAL LINE-2, provide 
audio output.

Factory default: Unbalanced output (UNBAL) mode
The input/output muting circuit is activated to mute sound 
during selecting an output mode.
Every output mode can store preset values, respectively.
Refer to the descriptions about presetting on pages 20 to 
21 for presetting.

8.   Balance control (BALANCE)

Adjusts the balance of sound volume between right and left 
channels.
Rotating this control counterclockwise makes the left sound 
volume enhanced, and rotating this control clockwise 
makes the right sound volume enhanced.
This control shall be set to the center position under normal 
conditions, and rotate to make adjustment if necessary.
The adjustable value for right/left balance is up to -6 dB for 
right and left each. 

9.   Remote sensor (REMOTE)

Receives signals from the remote control.

Содержание C-700u

Страница 1: ...Owner sManual CONTROL AMPLIFIER C 700u...

Страница 2: ...Contents Precautions 1 Features of This Unit 2 Names and Functions 4 Connections 12 Operations 16 How to use Remote Control 18 Block Diagram 24 Specifications 27 Before Asking for Repair Services 28...

Страница 3: ...equately connected noises including hum may be generated resulting in an adverse S N ratio The sound is not generated shortly after the power supply is turned on This amplifier is equipped with a time...

Страница 4: ...the first stage is 4 parallelized and the second stage is con nected with Darlington Due to these improvements the low impedance and high S N ratio of the transmission circuit have become possible In...

Страница 5: ...minal manufactured by Neutrik allows even a high perfor mance line cable with large plug to be connected Remote control RA 22 The remote control is encased in aluminum Tactile switches will satisfy us...

Страница 6: ...ich are located on the rear panel Input transition by rotating clockwise LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 BAL LINE 1 BAL LINE 2 LINE 1 Input transition by rotating counterclockwise LINE 1 BAL LINE 2...

Страница 7: ...pre amplifier or the like equipped with the sound volume adjustment function After checking the sound through the speakers with volume lowered adjust the volume to your favorite level When changing t...

Страница 8: ...makes the low frequency range enhanced and rotating this control counterclockwise makes the low frequency range attenuated This control does not function when the line straight switch is set to ON 12...

Страница 9: ...CONTROL AMPLIFIER C 700u 7...

Страница 10: ...on the remote control is set to ON 4 Balance indicator BAL Lights up when the balanced output terminal is selected for the output mode 5 Standby indicator STAND BY Lights up when the main power switc...

Страница 11: ...n the external pre switch is set to ON 11 Line straight indicator LINE STRAIGHT Lights up when the line straight switch is set to ON When the line straight switch is set to ON the loudness function ca...

Страница 12: ...function volume control function or LR balance function This output terminal can be toggled on and off with use of the preset function of the remote control Factory default Rec out on 3 Monitor input...

Страница 13: ...AC inlet AC IN Connects the accessory power cable The power shall be supplied from a household wall socket 8 Main power switch MAIN POWER Turns this unit to the standby state When this switch is set...

Страница 14: ...12 Connections Normal stereo playback CD SACD PLAYER L R L R L R L R L R POWER AMP 1 POWER AMP 2 L R L R L R L R SPEAKER SYSTEM 1 L R SPEAKER SYSTEM 2 L R REMOTE REMOTE CD SACD PLAYER RECORDER L R...

Страница 15: ...lifier Connect the remote input terminal of a power amplifier such as Luxman M 700u to the remote output terminal of this unit with the dedicated remote cable no polarity attached to the power amplifi...

Страница 16: ...14 Connections External pre playback L R POWER AMP 1 POWER AMP 2 SPEAKER SYSTEM 1 L R SPEAKER SYSTEM 2 L R REMOTE REMOTE AV AMP PRE AMP L R L R...

Страница 17: ...alization of sound images is deteriorated and proper play back is not acquired If the ground side of pin plug cable is floating it may cause generation of noises like hum deterioration of S N ratio Be...

Страница 18: ...ntrol is set to the center position How to operate the tone control This unit has the tone control function for the low frequency and high frequency ranges The low frequency range type works in the 30...

Страница 19: ...r 5 seconds or more and press the dimmer switch once while holding down the operation switch That s all for memory reset Factory default Item Default INPUT LINE 1 OUTPUT MODE UNBALANCE BAL PHASE INPUT...

Страница 20: ...erating state turns the unit to the standby state 2 Input selector LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 BAL 1 BAL 2 Selects the unbalanced input terminal or balanced input ter minal both of which are lo...

Страница 21: ...nit will be on mute 6 External pre switch EXTERNAL PRE Input selector switch to select the external pre input termi nal EXT PRE on the rear panel ON Outputs sound signals connected to EXT Pre terminal...

Страница 22: ...nced output and the display turns to 3 and 2 7th line of A Press or again to turn the phase setting back to 3 and 2 8 Press the ENTER switch to set the step back to the step 2 to enable the BAL LINE 1...

Страница 23: ...CONTROL AMPLIFIER C 700u 21 PRESET ENTER ENTER ENTER PRESET PRESET ENTER ENTER PRESET PRESET ENTER PRESET ENTER ENTER PRESET PRESET PRESET PRESET PRESET...

Страница 24: ...ghts up when the loudness switch is on When the line straight switch is set to ON this switch does not function 12 Line straight switch LINE STRAIGHT This switch is used to increase the purity of the...

Страница 25: ...s shown in the illus tration on the battery case in consideration of the polarity and 3 In the reverse order of battery cover removal put the battery cover back to the opening of the remote control an...

Страница 26: ...R 1 2 3 1 2 3 1 2 3 1 2 3 INPUT SELECTOR STRAIGHT MONITOR STRAIGHT L R L R L R TONE CONTROL TONE CONTROL L R BAL UNBAL UNBAL BAL PHASE INVERT XLR IN LECUA 1 LECUA 2 LECUA 1 LECUA 2 ODNF 1 ODNF 2 REG R...

Страница 27: ...10dB FROM INPUT SEMICONDUCTOR SWITCH SEMICONDUCTOR SWITCH 0dB TO OUTPUT DIFFRENTIAL AMP ATTENUATOR CONSTRUCTION ATTENUATOR CONTROL B1 LECUA1000 ATTENUATOR AMP EACH CHANNEL REG ODNF INPUT MUTE B2 11dB...

Страница 28: ...26 Block Diagram REGULATOR FOR AMP FROM POWER SUPPLY POWER SUPPLY B B FROM POWER SUPPLY RECTIFIER RECTIFIER RECTIFIER FOR AUDIO FOR ACCESSORIES FOR MICROCOMPUTER GND GND...

Страница 29: ...LINE 0 0 1 dB 1 V output 20 Hz 20 kHz load 50 k 0 3 0 dB 1 V output 5 Hz 120 kHz load 50 k BAL LINE 0 0 2 dB 1 V output 20 Hz 20 kHz load 100 k 0 3 0 dB 1 V output 5 Hz 80 kHz load 100 k LINE BAL LIN...

Страница 30: ...of the power amplifier to adjust the sound vol ume The input selector is not set to the source to played back Set the input selector to the source to played back The connected output terminal does no...

Страница 31: ...straight switch is set to ON Set the line straight switch to OFF The external pre switch does not work To prevent malfunction holding down for approximately 1 second shall be required for switching b...

Страница 32: ...LUXMAN CORPORATION JAPAN AG00987E34A Printed in China...

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