Ceriatone JM 100w User Manual Download Page 1 | Manualshive

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Ceriatone

Joyful Music!

50/100W all-tube

guitar amplifier

User’s Manual

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Summary of Contents for JM 100w

Page 1: ...1 Ceriatone Joyful Music 50 100W all tube guitar amplifier User s Manual...

Page 2: ...lifiers We have been pleased to provide many players access to our unique take on these legendary amplifiers A few years ago we finally released our flagship in the OTS series the SSS Around the time...

Page 3: ...1 4 instrument cable into the INPUT on the left of the front panel 2 Plug a suitable power cable from the JM s rear panel A C MAINS cable inlet to your wall power receptacle 3 Plug the JM into your sp...

Page 4: ...way toggle switch 4 MID BOOST three way toggle switch 5 DEEP two way toggle switch 6 TREBLE control 7 MIDDLE control 8 BASS control 9 SEND REVERB control 10 RETURN REVERB control 11 MASTER control 12...

Page 5: ...T is off In the DOWN position MID BOOST is on and provides a mid level midrange boost DEEP is a bass frequency boost You can use this to add subharmonics and girth to your tones Engaging this switch w...

Page 6: ...e Clockwise increases high frequencies Use this control to add sparkle and clarity to your tone ON OFF POWER two way toggle switch powers the Joyful Music on and off With the toggle switch in the UP p...

Page 7: ...w fuse used to protect your amplifier from voltage spikes or excessive current draw Replace only when necessary 100W model uses 1A and the 50W uses 0 5A MAINS slow blow fuse used to protect your ampli...

Page 8: ...r cabinet NOTE if you are using two speaker cabinets in parallel ex two 16 Ohm cabinets set the impedance selector to half that of a single cabinet in this case 8 Ohms EFFECTS LOOP RETURN instrument j...

Page 9: ...9...

Page 10: ...IAS JACKS AND ADJUSTMENT From left to right V9 V8 V7 V6 6L6GC power tube V5 12AX7 ECC83 phase inverter V4 12AX7 ECC83 reverb preamp mixer V3 12AT7 ECC81 reverb driver V2 12AX7 ECC83 reverb send return...

Page 11: ...11 NOTE V6 BIAS CHECK D V7 BIAS CHECK C V8 BIAS CHECK B V9 BIAS CHECK A V6 V7 V8 V9 BIAS POT...

Page 12: ...your DMM reads You might expect a value between 35mV and 45mV 5 Repeat for the next red probe B V8 again the red probe jack C V7 and finally the red probe jack A V6 Okay now I ve measured my bias Now...

Page 13: ...low steps 1 5 on page 11 2 Calculate what bias voltage reading you will set your tubes to in this case we will use 35mV 3 Insert your red probe in the probe jack of the power tube reading somewhere in...

Page 14: ...our own risk and only while paying attention and taking all precautionary measures Biasing should only be done on a clean workbench with no distractions Do not wear loose clothing or any jewelry Take...

Page 15: ...nd therefore do not play nicely For best results an effects loop interface like the C lator or Klein ulator should be used with the Joyful Music amplifier These units prevent impedance mismatching as...

Page 16: ...Dale RN65 precision metal film resistors 1W carbon film resistors SBE 6PS polyester film capacitors high quality ceramic disc capacitors Belton tube sockets Alpha potentiometers We prefer high qualit...

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