User manual CARVIN X-AMP

[. . . ] ______________________________________________________________ CARVIN X-AMP Tube Guitar Amplifiers OPERATION MANUAL Manual 96-00100 Revision 2. 0 Dec 1990 Covers the Following Models X-50B, X-100B X60, XT112, XV112, XV212 (800)854-2235 __________________________________________________________________ CONTENTS Section 1 Description Your New X-AMP Table of Contents Receiving Inspection For the New Owner Quick Start Up Quick Start Up Detail Control Descriptions Front Controls Rear Controls Understanding the X-Amp How to Set Your X-Amp The X-AMP Design Specifications Specifications Service and Technical Information Trouble Shooting Schematic Diagrams Warranty Information Warranty and Service Information Page 1-1 1-2 1-3 2-1 3-1 3-2 4-1 4-2 5-1 6-1 6 7-1 2 3 4 5 6 7 Receiving Inspection INSPECT YOUR X-AMP FOR ANY DAMAGE which may have occurred during shipping. If any damage is found, notify the shipping company and call CARVIN immediately. In the event you have to reship your amp, always use the original carton and packing material. This will provide the best possible protection for your unit during shipment. [. . . ] If you are using a guitar with "High Output" humbucking pickups, try "cutting" your 'Mid" control a bit and adjust the rest of the tone controls to your liking. You may want to use the "Pull Bright" for this type of setup. The "Pull Bright" is most effective between 2 and 3" on the "Rhythm" control. Most players tend to use the extra gain available in the "Hi Lead" setting so pull the Master "Hi Lead" control outward. Set your "Lead Drive at about "5" to start with and adjust your "Master" control to a volume level comparable to your "Rhythm" volume. Do this level matching by "ear" not by the numbers on the controls. Now, go to the "Graphic EQ" and make the final adjustment's to your "Lead" tone. Again, the Graphic EQ is an active circuit so a little adjustment goes a long way. The thing to remember when using your X-Amp is that it is highly responsive and many of the tendencies to extreme settings acquired by using "passive" type tone circuits will need to be re-learned to get the ultimate benefit from your X-Amp. EXAMPLES OF X-AMP CONTROL SETTINGS In order to get your "sound" from the X-amp you will probably need to spend a bit of time trying various combinations of amp settings and guitar settings. We have put together the following "recipes" for various sounds which we hope will get you started. In order to get the sounds described below set the controls as described and then set your RHYTHM or MASTER volume control for the volume you want. Use your "lead" pickup for the "Marshall" type distortion and your "rhythm" pickup for "Boogie" type distortion. BRIGHT LEAD DRIVE LEAD SW BASS OFF OFF 5 ON OFF 5 OFF ON--2 ON 6 ON ON--10 ON 7 OFF ON--10 ON 6 MID TREB 5 5 5 7 5 5 4 7 5 8 PRES 5 7 5 7 3 CLEAN RHYTHM BRIGHT RHYTHM SLIGHTLY DISTORTED LEAD "MARSHALL" DISTORTION "BOOGIE" DISTORTION X-Amp Design (technical description) (Refer to schematic diagram) Signal input to the X-Amp is by way of either the High or Lo input jacks. These are shorting type jacks with input resistor arrangement (R62 & R63) such that the LO input is attenuated 6 dB with respect to the HI input when either jack is used alone. If both jacks are used simultaneously then they each will have the same sensitivity. If an outboard effects is patched into the loop then A4(B) drives the effects input and the effects output returns to A5(B) via Q10. If no effects is patched in then the send signal feeds the return by way of R160. FET switches Q9 and Q10 toggle in response to the EFF 1 button on the FS36 footswitch. The send and return levels are varied simultaneously by the effects level switch. The signal returned from the effects loop is processed through two tone control stages at A1(A and B) and then fed to both the reverb drive amp IC3 (A and B) and the reverb return summing amp A2(A). When the front panel tone controls are set to "5" these stages have a flat frequency response and unit gain. [. . . ] Put the Service Number on the carton and be sure to include a full description of every problem when returning your unit. Pack the amp in its original carton using all its packing material and return it by UPS pre-paid. Units with physical damage, missing parts, or damage from improper service are not serviceable. · CALL BEFORE RETURNING If in doubt about a malfunction, please call our service department (toll-free) and we will help you determine if your unit i s defective to avoid costly shipping. · REPAIRS UNDER WARRANTY(1Year) 1 . Include a copy of the original invoice to verify your warranty along with a full description of the problem(s). [. . . ]