User manual PROCEED BPA3

[. . . ] BPA 2 & B PA 3 Power Amplifiers PR O C E E D WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. REFER SERVICING TO QUALIFIED PERSONNEL. The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Marking by the "CE" symbol (shown left) indicates compliance of this device with the EMC (Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards of the European Community. The information contained in the manual is subject to change without notice. The most current version of this manual will be posted on our web site at http://www. madrigal. com. 2 Important Saf ety Instructions Please read all instructions and precautions carefully and completely before operating your Proceed power amplifier. 1. ALWAYS disconnect your entire system from the AC mains before connecting or disconnecting any cables, or when cleaning any component. This product is equipped with a three-conductor AC mains power cord which includes an earth ground connection. [. . . ] (Getting the wires mixed up won't damage anything, but the sound will be lacking in bass and the imaging will be quite poor and unstable. ) 5 CONNECT THE AC CORD TO THE BPA AND TO YOUR AC OUTLET The AC receptacle for the power cord is located on the right side of the rear panel, as seen from the front. The BPA will initially power up in standby mode. 6 TURN ON THE BPA BY PRESSING THE POWER BUTTON Pressing the latching power button on the front panel of the BPA 2 and BPA 3 will connect the amplifier to the AC mains. If the indicator light does not light, the amplifier is either not receiving AC power or its protection circuitry has been engaged. 8 7 SLOWLY RAISE THE VOLUME ON YOUR PREAMPLIFIER Congratulations!Y should now be able to enjoy your favorite music while ou reading the rest of this manual. It contains much valuable information about your new amplifier which we could not possibly fit onto these two pages. ) 9 Special Design Features Congratulations on your purchase of a Proceed BPA!While your new amplifier is straightforward in its use, it includes several design features which are responsible for its outstanding performance. A few of these are given below. Multiple monaural design Consistent with the finest amplifiers, your Proceed BPA is a true "multiple monaural" design. Each audio channel has its own, dedicated power supply--including a separate 300VA toroidal transformer for each channel. In either case, a power relay will cause the amplifier to be disconnected from the AC mains. In addition, the AC input to each transformer is fused to protect against excessive current conditions such as driving shorted outputs. Finally, inrush limiting prevents premature aging of power supply components during power-up, and switches off-line once the power supply has been charged. 10 2 triple monaural amplifier power HPA 1 Front Panel 1 POWER BUTTON Pressing the latching power button connects the amplifier to the AC mains, turning it on. Power consumption when fully on and at idle is approximately 140 watts for the BPA 2 and 210 watts for the BPA 3. At your option, you may also toggle the BPA between a standby mode and fully on by connecting its remote turn on jack to the corresponding remote turn on output on a Proceed control unit such as the AVP . When first powered up, the BPA will always go to fully on, regardless of the signal present at its remote turn-on jack. If the control unit then turns on, the amplifier will remain on; thereafter, the two will remain in sync. If power is removed from the BPA, it will automatically re-sync with the control unit in the course of normal operation. No user intervention is required, beyond simply turning the system on and off from the control unit. Power consumption in standby mode is significantly reduced from fully "on"--just a few watts for the circuitry which controls the turn-on procedure. Note that if the amplifier has been disconnected from the AC mains power by depressing the front panel power button, it cannot respond to a remote turn-on command from a control unit. 2 INDICATOR LIGHT The indicator light glows either amber or red, depending on the operational status of your BPA. When the indicator light is glowing red, the unit is in standby (see 1 above). If the indicator light is completely off, the amplifier is not receiving power. Check your AC connections and the rear-panel AC fuse. 12 7 4 3 2 PR O C E E D BPA3 R b + outputs ­ made in u. s. a. trigger inputs + outputs ­ + outputs ­ mains fuse 100-120VAC: T8A 250V (slo-blo) 3AB 200-240VAC: T4A 250V (slo-blo) 3AG input select input select input select channel 1(right) w h e n vi ewe d f ro m t h e f ro n t channel 2(center) w h e n vi ewe d f ro m t h e f ro n t channel 3(left) w h e n vi ewe d f ro m t h e f ro n t ~ ac mains 6 5 1 Rear Panel Caution! Turn the volume on your preamplifier all the way down before attempting to connect anything to your Proceed BPA 2 or BPA 3. 1 AC MAINS RECEPTACLE Connect the AC power cord (included in the accessory pack) to the I. E. C. standard AC receptacle on the rear panel of the BPA, then to the AC mains outlet. Warning! The Proceed BPA has been safety-tested and is designed for operation with a three-conductor power cord. [. . . ] If your Proceed component must be serviced, please contact your dealer. Your dealer will then decide whether the problem can be remedied locally, or whether to contact Madrigal for further service information or parts, or to obtain a Return Authorization. The Madrigal Technical Services Department works closely with your dealer to solve your service needs expediently. Important! Return authorization must be obtained from Madrigal's Technical Services Department BEFORE a unit is shipped for service. It is extremely important that information about a problem be explicit and complete. A specific, comprehensive description of the problem helps your dealer and the Madrigal Technical Services Department locate and repair the difficulty as quickly as possible. [. . . ]