Tech Specs - PRS Guitars
Contents
1. Singlecut Mira and the SE are all registered trademarks of Paul Reed Smith Guitars Custom 24 Modern Eagle SE Custom SC 245 SC 250 Starla Tonare Sewell Blue Sierra and Angelus are all trademarks of Paul Reed Smith Guitars The Birds and New Birds are copyrighted by PRS Guitars2. assure there are no cherry red components 3 within the tube Tubes today can have a wide variety of tolerances and although very rare if Weight the power tubes show any signs of over current they should be replaced Head 30 lbs 3 6kg Fuses x12 Combo 42 lbs 19kg There are 5 fuses installed in the amplifier Only of these the main input fuse is accessible and replaceable by the user There are 4 fuses internally for added safety 2 of these fuses are d repl ble by th Th 4f lly for added safety 2 of these f Dimensions high voltage fuses and 2 fuses are for the lower filament voltages In all cases labels indicate the type and rating of the fuse Replacement fuses MUST BE THE SAME TYPE AND RATING If Head 24 5in X I2in X I2in they are not you can permanently damage your amplifier Please contact your local PRS dealer ix 2 Combo 99 Sin X 20in X 9 5in or the PRS accessories web site for information on ordering replacement fuses Instructions for Qualified Service Technician Replacement of internal fuses requires removal of the back panel and removal of the chassis First ensure the power cord is not plugged in then remove the back panel with a screwdriver Loosen the 4 screws holding the chassis to the top of the cabinet Ensure the reverb cords are unplugged then check that all components are cool so that burns do not occur Then slide the chassis straight out of the back of the cabinet NOTE Capacitors may retain an elect
3. Service Notes Tech Specs Tubes Tubes are consumables as they have a given usable lifespan They are part of the heart of the tone so keeping correctly operating tubes is essential Tubes can fail catastrophically or gradually and it s good to know what to Look for if they start to go bad Periodically inspect 30 Am them and Look to see if anything inside the tube is glowing cherry red other than the normal P orange glow of the filament This would indicate a situation where the tube is conducting more current than it is capable of handling and most likely about to fail Two other conditions Max Power Usage 200 Watts to observe are filaments not glowing or a miniature fireworks display inside the tube Any Pre Amp Tubes 2 each I2AX7 2 each I2AT7 of the above conditions indicate serious problems with the tube and should be taken care of immediately Tubes quite often are the cause of spurious noise in the amp Microphonic tubes Power Tube 4 each EL84 will squeal or rattle with the vibrations of the cabinet If suspected tap each tube lightly with a pencil with the amp powered up the suspect tube will let you know Note that there is a Power Tubes should be purchased as matched sets Use only tubes in quads normal metallic clinking when doing this but a microphonic tube will be quite loud ge that are factory matched Failure to use matched tubes can Lead to tube failure PRS 30 Guitar Am plifier and amplifier damage or
4. abnormal operation Instructions for Qualified Service Technician To install the tubes check that the power cord User s Manual is not plugged in then remove the metal back panel with a screwdriver and notice the tube sockets Looking from the back install the Power tubes EL84s in the left sockets In each Main Fuses case align the pins correctly with the socket The I2AX7 and I2AT7 preamp tubes can then be placed in the 9 pin sockets to the right of the power tubes Please refer to the tube chart 100V 50Hz 60Hz 1 64 250V Type 20mm x 5mm inside the amplifier for proper pre amp tube locations Be aware of the pin alignment with these as there is only one way they can fit We utilize tube sockets that allow relative ease 120V 60Hz 1 6A 250V 20mm x Smm of tube installation but never force tubes into the sockets if there becomes a problem Also 230V 50Hz A 250V 20mm x 5mm never torque the tubes only gently rock them from side to side during insertion or removal After tube installation place the cylindrical spring tension preamp tube covers over the Filament Fuses 2 each 6A 250V Type 3AG preamp tubes and the spring retainers over the power tubes Bt Fuses 2 each 500mA 440V Type 3AG Since all the tubes in this model are self biasing replacing power and preamp tubes will i not require any adjustment under normal circumstances However after power tube Reverb 3 Spring Medium Decay Tube Driven replacement initially inspect the tubes often to
5. er On Standby Off Switch 3 position switch to ramp up the power on the amplifier Turn the amp off in the down position then switch to standby in the middle position then switch up to turn the amp on Jewel Power Indicator Power indicator If the jewel is Lighted the amp is on This does not indicate the standby setting of the amp Note An amplifier may be plugged in and on but a malfunctioning or burnt out indicator will not show the amp is on Check the power cord and Power Switch if the jewel light is not on If these are connected correctly then check the main fuse If the main fuse burns out check for proper speaker connections If the fuses continue to blow the amplifier may need servicing Rear Panel Controls EAKER JACKS seri No TS vc SP lt NOT EXPOSE AVIS POUR REDUIRE LE PaE DINGO OU DE OEN RAPET ALA LNE OU LAAT 4a TAN enZ 200W 8o ruse 2A 250 167 IMPEDANCE SPKR CAUTION CHASSIS SURFACE HOT ATTENTION SUPERFICIE DE CHASSIS CHAUDE SELECTOR OUT Fuse Blown fuses may indicate that the amplifier needs servicing Use only the type and rating specified on the back of the amplifier See the section on Service Notes for proper fuse servicing and replacement Speaker Jacks Get into the habit of checking these first The jacks include a connection for 4 8 and 16 ohm loads There is an extension EXT included in parallel with the speaker out jack Use the extension speaker jack fo
6. important controls on the amp Depending on the output of your pickups you can find your sweet spot at various locations on the sweep There will be a point in which actual volume stops increasing and the tone becomes thicker and more compressed Each guitar will react differently and exploring this control should be a source of great enjoyment Reverb The reverb knob controls the amount of reverb added to the guitar signal at the output Adjust to your liking Treble The treble control is very sensitive and should be used with discretion Like all three knobs there are no numbers to encourage you to set the amp with your ears It affects the gain and distortion of the amp and can work effectively with the bright switch to produce more mid 60 s American scooped mid bell tones Just roll back the treble to say II o clock and flip on the bright switch Middle Controls the Mid EQ tone Bass The bass control is more useful in clean settings and should be used a Little more sparingly when overdriving the amp Back off the bass to say 9 o clock when initially experimenting with overdrive Another thing to explore is to turn this control all the way up to phase cancel certain frequencies for interesting tonal effects Consider the bass all the way up at about 3 o clock If you like to hang in that sweet spot try the control at about o clock and adjust the treble to taste Master Controls the overall volume of the amplifi
7. plifier tone as well as their playing What s interesting is that when spoke to these artists about trying the amps they all said the same thing Sure l U use them if love them In a real way amplifiers are musical instruments They are the devices that amplify the sound of the player s hands the guitar and possibly the pedal board They must share many qualities They must work they have to have a beautiful balance of bass midrange and treble the highs should be sweet not harsh they should be easy to operate and be highly musical In addition amps should clean up really well when you turn your guitar down The final quality that Doug and looked for are amps that sound good no matter where the knobs are It is a rare quality that we insisted on hope this hand crafted amplifier gives you years of enjoyment musical results and pride in ownership appreciate your confidence Using your PRS Amplifier IMPORTANT Before using your amplifier refer to the IMPORTANT SAFETY INSTRUCTIONS insert supplied with the product Powering Up Make sure your speaker cabinet is connected to the correct speaker output impedance jack with a high quality speaker cable Do not use guitar cords 2 Make sure the power cord is connected to the correct grounded outlet 3 Make sure there is at Least 6 inches of clearance behind the amplifier to allow for proper cooling Never place the amplifier against a wall or other eq
8. r adding a like speaker Load being careful to calculate the total impedance for the two loads For example two l6 ohm loads would total 8 ohms and two 8 ohm loads would total 4 ohms Do not connect an 8 ohm Load along with a 4 ohm or l6 ohm Load in the jack This procedure halves the reflected impedance of each and will not allow ideal operating conditions If you are using more than one speaker they must be the same impedance For example use two 4 ohm speakers or two 8 ohm speakers Never use 2 different speaker impedances You should not mix and match The maximum number of speakers you can safely connect is 2 Always ensure that the speaker impedance matches the correct impedance selection since this amp is designed to be played wide open Mismatching impedances from a lower tap to a higher speaker impedance stresses the amp more than going into a lower impedance mismatch and can cause arcs on the tube sockets failure of power tubes or even failure of the output transformer Confirm that the speaker cabinet you are using matches to the correct impedance selection on the back of the amp Note The total speaker impedance must be determined before connecting to the speaker jacks 2009 PRS Guitars All rights reserved Paul Reed Smith PRS the PRS Logo the PRS Paul Reed Smith logo the Paul Reed Smith signature the bird inlays the headstock bird the PRS headstock shape the PRS body shape the PRS scoop design
9. ric charge and can be dangerous even when the unit is off unplugged and has not been played for an extended period of time USE CAUTION Locate the fuse holders and remove them and check for continuity Blown fuses can indicate a failure condition and should be treated as though a problem exists Check the label for the proper type and rating After all fuses have been replaced and the amp is tested as acceptable and safe reinstall the chassis by working in reverse Be sure to plug the reverb cords back into place agrare A few years ago was at the Dallas Vintage Guitar Show and my band was scheduled to perform a few times A friend said Hey You need an amp to play through and have a friend who makes great amps He took me to the booth of a Texas amp builder Doug Sewell Loved the way his amps sounded and after barely saying hello Doug and were inside rewiring the amp was going to play through Since that day Doug and have spent years rewiring and Listening to every single possible variation to finalize the circuits Our goal was to have highly usable and musical amplifiers am not an amp collector am an amplifier user who keeps the amps am presently playing through That said after Doug and got several of the prototypes finalized sold some of my old coveted Live and studio amps because ours sounded considerably better The next step was to take the prototypes to musicians who are known for their am
10. uipment and keep it clear of other heat sources such as other amplifiers or stoves Make sure there are no flammable items such as curtains behind the amp Do not drape items over the amps that can prevent proper cooling Do not set drinks or other liquids on top of the amp that can spill into the amp 4 To increase the life of the tubes set the Standby switch to the STANDBY position before powering on Turn the POWER switch on and let the amplifier warm up for 2 minutes before setting the standby switch to ON If this is the first time you are turning on the amp check to see if all of the tubes are glowing 5 Plug in the guitar cable turn the volume knob down and turn the standby switch on and wait a few seconds for the bias to settle Bring the volume up and play some tunes PRS 30 Amplifier Front Panel Controls Qa oWOQOD O sgg On OFF INPUT BRIGHT VOLUME REVERB TREBLE MIDDLE BASS MASTER Input 4 standard guitar cord Bright Switch The bright switch adds shimmer in the clean settings It allows high frequencies to be unattenuated by the volume pot As previously stated to achieve bell like cleans back off the treble and employ the bright switch Also if you are using a distortion pedal use the bright switch with discretion because it will add sizzle to the higher frequencies If you are trying to achieve smooth fat lead tones the bright switch should be off Volume The volume is one of the most
Download Pdf Manuals
Related Search