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5) VOLUME, CHANNEL 1 INDICATOR (RED): 

When your amp is in channel 1 and the power is on, this L.E.D. will glow. 
 
Your Convertible Amp uses L.E.D.'s because L.E.D.'s will last up to 10 times 
longer than regular bulbs. Under normal usage. your L E.D.'s should last 10 
years or more. 
 

6) VOLUME, CHANNEL 1 (RED): 

This control sends the signal volume from the 

channel ' preamp to the power amplifier. For the cleanest signal, turn the volume 
up high and keep the Overdrive low (but not off). For the dirtiest signal, turn the 
volume down (but not off) and the Overdrive up high. 
 

7) OVERDRIVE, CHANNEL 2 (GREEN): 

This control operates exactly the same 

way as the Channel 1 (Red) Overdrive. With two sets of Volume and Overdrive 
controls you can set the one channel with a clean rhythm sound and a distorted 
lead on the other. 
 

8) CHANNEL 2 INDICATOR (GREEN): 

When your amp is in channel 2 and the 

power is on, this L.E.D. will glow. 
 
 
 
 
 

Summary of Contents for Convertible 60 WATT

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Page 2: ...t versatility many unique and exclusive features are built in This manual will show you the easy way of getting a wide variety of great sounds just by properly setting up the amp Enjoy it If you have any comments about the design of your amp I d like to hear from you If you have any ideas for modules or other related products please write me at the address below Thank you P S If you haven t mailed...

Page 3: ...nd packing material for evidence of damage if it has occurred Packing Materials The original box and packing materials are specially designed to protect your amp during shipment SAVE ALL PACKING MATERIALS In the unlikely event that your amp needs to be returned to the factory the original box and packing material will be necessary for shipment These are carrier approved packing materials and they ...

Page 4: ...ts Front Panel Controls Page 4 5 Rear Panel Controls Page 6 7 Preamp Modules Page 8 9 Module Arrangements Page 10 11 Changing Modules Page 12 Tubes Page 13 Trouble Shooting Page 14 15 Blank Module Arrangements Page 16 ...

Page 5: ...advantage of the independent volume and overdrive controls The optional Seymour Duncan footswitch with built in L E D will glow only when you re playing in the red channel Some amps produce a loud pop through their speakers when channel switching The Convertible Amp uses a channel switching circuit built into the preamp that is isolated from other electronics No annoying pops will occur when chang...

Page 6: ...nnel preamp to the power amplifier For the cleanest signal turn the volume up high and keep the Overdrive low but not off For the dirtiest signal turn the volume down but not off and the Overdrive up high 7 OVERDRIVE CHANNEL 2 GREEN This control operates exactly the same way as the Channel 1 Red Overdrive With two sets of Volume and Overdrive controls you can set the one channel with a clean rhyth...

Page 7: ...db Turning the dial counter clockwise Cuts the level of low end response 13 REVERB This control lets you set the amount of reverberation you want in your sound Turn the reverb control clockwise to increase the amount of reverb and counterclockwise to decrease All the way counterclockwise is off Effects Loop Use this circuit with your effects for the least amount of hiss In older design amps player...

Page 8: ... and replacing the cap you can plug the amp back into the wall To remove the fuse cap simply use a small blade screwdriver and turn the cap counterclockwise To replace the fuse cap make sure the fuse is snugly seated in the cap push fuse and cap into the fuse hole and turn the fuse cap clockwise using a small blade screwdriver Fuses do not wear out they do not deteriorate with age Fuses are protec...

Page 9: ...tible Speaker that is built into the 60 watt Combo is an 8 ohm speaker You can use both speaker jacks at the same time with different speakers The Convertible Amp s strong transformer can handle any load with no damage 5 SLAVE Use this jack for patching the output signal of the amp directly into a mixer tape recorder or another amp Just use a regular guitar cord from the Slave Out to the guitar in...

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Page 14: ... green L E D channel is located on the left as you look at the rear of the amp This channel is optimized for rhythm playing by the internal electronics in the amp To remove and replace modules follow the steps under Changing Modules Here is the way that modules are arranged when 60 watt Convertible amps are shipped Below are just some of the module arrangements you can try for different sounds You...

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Page 16: ...p its handle 3 Align the module plug to be installed in front of the receptacle in the channel you have selected 4 Slowly insert the module into the receptacle Apply moderate pressure until You feel the module is seated snugly 5 Repeat steps 2 through 4 for the other channel s module if you want to replace that one too When you have finished changing modules double check both modules to ensure the...

Page 17: ... and overdrive controls off 2 Remove guitar cord from input jack 3 Listen for hum level 4 Turn bias balance control clockwise for lowest hum If hum increases while turning clockwise turn the control counter clockwise until the hum reaches its lowest audible level If you re transporting your amp often and subjecting it to rough handling there are other power tubes that will better withstand the abu...

Page 18: ...nvolved in a touring schedule and you want to avoid tube related problems bring some extra tubes with you for all your equipment TROUBLESHOOTING The following table should enable you with little or no knowledge of electronics to isolate the cause of some problems you may experience with your amplifier and the steps required for repair Most causes of impaired amplifier performance are due to minor ...

Page 19: ...nt are down 5 Increase settings and listen 6 Defective center driver tube 12AX7 6 Replace 1 2AX7 7 Module s not installed in rear of unit 7 Install modules 8 Effects hooked up backwards 8 Properly hook up effects with effects loop 9 Defective tube in module 9 Replace module tube Loud amplifier hum 1 Instrument connecting cable not properly grounded 1 See that connecting cable is plugged into instr...

Page 20: ...Reverb output wires not connected to reverb tank 2 Ensure output wires properly connected to reverb tank No reverb sound 3 Defective internal spring reverb unit 3 Replace reverb spring 4 Defective reverb Send or Return circuits 4 Return to dealer or factory 5 Springs are stuck 5 Tap the reverb tank with your hand Channel selector Footswitch does not change channels 1 Channel selector on amplifier ...

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