Fuchs Audio Technology Blackjack-21-II Operation Manual Download Page 5

 

“2

   Please read before powering up your amplifier.

 

 

        Please see Panel Diagrams in next section 3 for assistance. 

 

1)

 

Inspect to make sure power & pre-amp tubes are intact & snuggly seated in their 

sockets. 

 

2)

 

Make certain a speaker (load) is plugged into speaker input jack on the back of 

the amplifier. Failure to have a speaker connected to the amp will result in 

damage to the output tubes!  Your amp is supplied with 4,8 and 16  ohm speaker 

output jacks, select the one which matches your speaker(s) impedance.  

 

3)

 

Reduce Front panel GAIN controls to moderate level.  

 

4)

 

Install instrument cable from guitar into front panel INPUT 

 

5)

 

Be sure both POWER switch (front panel) is in DOWN (0ff) position and standby 

is in off (down) position. 

 

6)

 

Install power cord to amplifier (AC POWER IN) and to appropriate AC power 

source. 

 

7)

 

POWER UP amplifier by: 1) flipping POWER switch UP. Allow at least 30 seconds 

to 1 minute for tubes to heat up. Then switch amp to operate mode via standby 

switch. 

 

8)

 

The Amplifier is now fully on and ready to use. Feel free to adjust all controls as 

you see fit. 

 

9)

 

Provide adequate and unimpeded ventilation. 

 

10)

 

Do not expose the unit to drips or splashes. 

 

11)

 

Do not to place liquids on the unit. 

 

12)

 

Properly ground the unit (i.e. make sure the outlet used is grounded, and ground 

is not defeated between the outlet and unit). 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for Blackjack-21-II

Page 1: ...II Lucky 7 II Four Aces heads combo Fuchs Audio Technology 407 Getty Ave Clifton NJ 07015 973 772 4420 fax 973 772 4460 Website www fuchsaudiotechnology com Email info fuchsaudiotechnology com 2000 2...

Page 2: ...tremendous musicality of this new series Please read this manual carefully Although these amps were created to be simple amplifiers to operate they will perform to fullest glory by your full understan...

Page 3: ...fore powering up your amp 3 Diagrams FRONT REAR panels Tube bias diagram 4 Front panel Controls inputs their functions 5 Rear Panel controls inputs outputs 6 Biasing power tubes other technical info 7...

Page 4: ...itry are on the circuit card while the power tubes and transformers are mounted on the chassis A detachable power cord is standard By using single point grounding the amp is quiet and free of hum at a...

Page 5: ...tall instrument cable from guitar into front panel INPUT 5 Be sure both POWER switch front panel is in DOWN 0ff position and standby is in off down position 6 Install power cord to amplifier AC POWER...

Page 6: ...3 Diagrams of FRONT REAR Panels Tube Bias Diagram Front Panel Rear Panel Tube Bias diagram Biasing for various models...

Page 7: ...dals effects input is also inserted to this input in series with your guitar Clean Gain Control The gain control sets the overall gain volume for the amplifier in the clean channel 1 mode Adjust to vo...

Page 8: ...sis and make sure you are supplying the correct AC voltage to the unit Damage from incorrect voltages is not covered by warranty AC power Fuse This fuse protects the amplifier if any malfunction occur...

Page 9: ...questions in this regard Fuchs Audio takes no responsibility or shall be held liable for any personal harm caused or damage to this amplifier as a result of unauthorized service repair or internal ad...

Page 10: ...an to replace your obsolete outlet Do not defeat the safety purpose of this plug Protect the power supply cord from being pinched or abraded This product should only be used with a cart or stand that...

Page 11: ...This does not apply to Fuchs amplifiers that have been tampered with damaged by shipping carriers reverse engineered or modified Your warranty form information must be returned to Fuchs Audio Technol...

Page 12: ...________ Model ___________ Serial Number ___________________________________ Date of Purchase ___________________________________________________ Dealer Name __________________________________________...

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