Hughes Kettner Stereo Amplifier CF 200 User Manual

GUITAR- PA STEREO POWER AMPLIFIER  
Hughes  
Kettner Musical Instruments  
Telefon  
Magdeburgerstr.6 6690  
51 20 21 Telefax 68 51 48 86  
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We are pleased you chose the CF 200 power amplifier. Its innovative CURRENT  
FEEDBACK circuitry is the ideal medium for the modern guitar rack. The CF 200  
is equally suitable for PA, monitor, and keyboard applications.  
PLEASE READ THE FOLLOWING GUIDELINES PRIOR TO OPERATING THE CF 200:  
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The European model’s voltage can be adjusted from 220 V to 240 V.  
To avoid overheating, ensure sufficient air circulation is available both at the  
sides and to the rear of the CF 200.  
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Do not install any units sensitive to heat, for instance effects processors, directly  
above the CF 200.  
Never expose the CF 200 to climatic extremes and ensure the amp is always  
protected from moisture.  
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To protect your speakers, always switch the CF 200’5 power on last.  
Service and repair work should be left to an authorized repair shop. Before  
opening the housing, always ensure the mains power cable is unplugged!  
FRONT PANEL CONTROL FEATURES  
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1 ) The VOLUME LEFT and VOLUME RIGHT knobs regulate input sensitivity and  
subsequently the power output. In the BRIDGE MODE, only the right control is  
activated.  
The green -20 db LED ( 2  
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indicates the signal level at the respective input is  
correctly adjusted. The red CLIP LED  
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3 ) denotes the signal level is too high, and  
the CF 200 is clipping. Adjust the appropriate VOLUME knob so that the red LED  
illuminates at impulse peaks only.  
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G UITAR/PA  
The GUITAR/PA switch activates the CURRENT FEEDBACK circuitry (GUITAR mode  
on, PA off). The CURRENT FEEDBACK circuitry elicits an amp, producing the  
type of signal most desirable for guitar amplification.  
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MAINS: The MAINS power switch illuminates when engaged.  
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CF  
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REAR PANEL FEATURES AND FUNCTIONS  
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Prior to plugging the fa c tory-inc luded EUROMAINS C ABLE in the AC rec eptac le  
o ff the rea r pa nel, a djust the volta ge selec tor to the c orrec t volta ge.  
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Use a sc rewdriver to remove the FUSE BRAC KET. Ensure repla c ement fuses hea r  
identic a l spec ific a tions to the origina ls. The fuse bra c ket on the Europea n model  
doubles a s a volta ge selec tor. Rea d the upright va lue to determine the c orrec t  
volta ge setting.  
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The G ROUND LIFT switc h severs the ground to the c ha ssis, elimina ting  
a nnoying ba c kground hum when the power a mp is used in c onjunc tion with other  
equipment.  
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SPEA KERS  
C onnec t spea kers to these ja c ks for stereo opera tion. When using one spea ker  
c a binet per c ha nnel, ensure ea c h spea ker ha s a minimum power ra ting of 100 wa tts  
a nd a n impeda nc e between 4 a nd 16 ohms. For two spea kers per c ha nnel, ea c h  
c a binet must be ra ted a t 8 ohms or grea ter.  
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SPEA KER PRO TEC T  
Two fuses (3.15 A), one for ea c h c ha nnel, protec t spea kers from da ma ge due to  
ma lfunc tions e.g. direc t c urrent in the output ja c k. They a lso protec t the power a mp  
from potentia l da ma ge, e.g. due to a defective power c a ble.  
Before resuming operation, ensure:  
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you repla c e blown fuses with ones hea ring identic a l ra tings.  
both, the c onnec ted spea kers a nd spea ker c a bles a re fully func tiona l.  
a qua lified repa irma n inspec ts he C F 200 for possible da ma ge.  
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( 10)  
page 8  
 
( 11 ) BRIDGE MODE  
The MODE switc h  
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determines whether the C F 200 operates in the 2 x  
1
OOW  
stereo mode, or in the 200W mono mode. To avoid ac c idental switc hing between  
modes, a plastic c overpla te is sc rewed in position. Ensure that the upper and  
lower screws are never removed simultaneously. When the MODE switch  
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is  
in the MONO BRIDGE position, the C F 200 opera tes a s a mono 200W a mp. Use  
the two binding posts to c onnec t speaker c abinets. Ideally, use c ables with  
terminals or banana plugs. Minimum impedance: 8 ohms.  
Blac k binding post: negative. Red binding post: plus  
The INPUT RIGHT a nd the VOLUME RIGHT c ontrol a re a c tiva ted in the  
BRIDG E MODE.  
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INPUTS  
The input ja c ks a re suita ble for prea mps or mixers. Both c ha nnels a utoma tic a lly  
a mplify the signa l if only the INPUT RIGHT ja c k is a c c essed. In the BRIDG E  
MODE, only the INPUT RIGHT is ac tivated.  
SIGNAL ROUTING DIAGRAM  
line Out Right  
Input Right  
line Out left  
Input left  
HUGHES  
KETTNER CF 200  
Stereo Speaker Outs  
Right  
left  
input  
Input  
Cabinets e.g. HUGHES  
KETTNER  
 
TECHNICAL DATA  
Output power per channel:  
Input sensitivity:  
70W at 8 ohms,  
1
OOW at 4 ohms  
1 V eff /0 cl bv  
-
6dBV  
dBV/! V eff  
50 kohms  
/
0.63 V eff  
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Stereo mode  
Bridge mode  
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Input impedance:  
IMPORTANT SAFETY INSTRUCTIONS!  
BEFORE C ONNEC TING , READ INSTRUC TIONS  
1. Read all of these instructions  
Save these instructions for later use  
2.  
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Follow all warnings and instructions marked on the product  
4. Do not use this product near water  
D o not place this product on an unstable cart, stand or table. The product may  
fall. causing serious damage to the product.  
5.  
6. Slots and openings in the cabinet and the back or bottom arc provided for  
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entilation to ensure reliable operation of the product and to protect it from  
overheating these openings must not be blocked or covered. This product should  
not be placed in a built-in installation unless proper ventilation is provided.  
This product should be operated from the type of power source indicated on the  
marking label. If you are not sure of the type of power available consult your  
dealer or local power company.  
7.  
8. ‘I his product is equipped with a 3-wire grounding type plug. a plug having a third  
pin. This plug will only tit into a grounding-type power outlet. This is a safety  
feature. If you are unable to insert the plug into the outlet, contact your electrician  
to replace your obsolete outlet. Do not defeat the purpose of the grounding type plug.  
Y. Do not allow anything to rest o n the power cord. Do not locate this product  
w
here persons will walk on the cord.  
 
10. If an extension cord is used with this product make sure that it is a 3-wire  
grounding- type and that the total of the amp ere ratings on the products plugged  
into the extension cord do not exceed the extension cord ampere rating. Also  
make sure that the total of all products plugged into the wall outlet does not  
exceed I.5 amperes.  
Il. Never push objects of any kind into this product through cabinet slots as may  
touch dangerous voltage points or short out parts that could result in risk of fire  
or electric shock. Never spill liquid of any kind on the product.  
12. Do not attempt to service this product yourself, as opening or removing covers  
may expose you to dangerous voltage points or other risks. Refer all servicing  
to service personnel.  
13. Unplug thia product Ii-om the wall outlet and refer servicing to qualilied service  
personnel under the following conditions:  
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When the power cord or plug is damaged or frayed  
If liquid has been spilled into the product  
If the product has been exposed to rain or water  
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If the product does not operate normally when the operating  
instructions are followed. Adjust only these controls that are covered by  
the operating instructions since improper adjustment of other controls  
may result in damage and wilt often require extensive work by a  
qualified technician to restore the product to normal operation.  
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If the product has been dropped or the cabinet has been damaged  
If the product exhibits a distinct change in performance, indicating  
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a need of service!  
Selection of power supply cord  
Use only a listed detachable power supply cord type SVT or SJT  
minimum 18 AWG. 3 conductor, one end configured for NEMA 5-l 5  
other end for IEC 320/ CEE 22!  
14: Fuses: For continued protection against risk of fire, replace fuses only  
with same type and ratings  
TO PREVENT THE RISK OF FIRE AND SHOCK HAZARD, DO NOT EXPOSE THIS  
APPLIANCE TO MOISTURE OR RAIN. DO NOT OPEN CASE; NO USER SERVICEABLE  
PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.  
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