User manual ROLLS RA200

LIMITED WARRANTY This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow the exclusion or limitation of special, incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. RA200 100 WATT/CHANNEL POWER AMPLIFIER VOLUME 1 VOLUME 1 0 10 1 5 30 10 0 0 10 1 5 30 10 0 PROTECT WATTS WATTS ROTECT POWER RA200 MOSFET POWER AMPLIFIER ROLLS CORPORATION SALT LAKE CITY, UTAH 6/99 OWNERS MANUAL INTRODUCTION Thank you for your purchase of the ROLLS RA200 Power Amplifier. The RA200 is a stereo 100 Watt per channel MOSFET power amplifier. It bridges to 200 Watts into eight ohms. It is intended for professional audio applications such as recording studios and small live performances. INSPECTION 1. Unpack and inspect the RA200 box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. 2. Please complete the Warranty Registration Card and return it to the factory. INSTALLATION Connect the power cord to an AC power source, connect the input to the signal source and to the RA200 via the RCA or 1/4" input jacks. Speakers may be connected by using the 1/4" output jacks, or the dual banana posts. Turn the Volume controls fully counterclockwise (off), and turn on the power switch, the power LED should light. With the program material running, slowly increase the Volume controls until the desired level of sound is present. There is a one second turn-on delay provided to prevent possible speaker damage in case all equipment is on a signal power strip. 4A 120V - 2A 230 V OUTPUT 2 OUTPUT 1 and , depending on the load demand, it may become very hot if drawn upon heavily. SPECIFICATIONS Power Output, Stereo: Input Connectors: Output Connectors: Sensitivity: THD: S/N Ratio: Power Bandwidth: Damping Factor: Slew Rate: Phase Shift: Input Impedance: Power: Size: Weight: 100 Watts RMS/ch. 4 W 70 Watts RMS/ch. 8 W Bridged - 200 Watts RMS 8 W 1/4" TRS balanced and RCA 1/4" and 5-way binding posts <1 VRMS for full output <.08% (1kHz @ 1 Watt) 106 dBU DC - 30 kHz +/- 1dB > 150 100 Volts/microSecond <10 Deg., 20Hz - 20kHz 10 KW Balanced 120 VAC 60Hz 2.5A 230 VAC 50Hz 19" x 3.5" x 7.5" (48 x 9 x 19 cm) 12 lbs (5.5 kg) OUTPUT 1 SERIAL NUMBER BRIDGE NORMAL C O R P O R A T IO N MADE IN U.S.A. SCHEMATIC + CHANNEL 2 INPUT CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE LID. NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL MAINS POWER WARNING For continued protection against risk of fire, replace only with same type and rating of fuse. + OUTPUT 2 WARNING: CHANNEL 1 INPUT To reduce the risk of electric shock or fire do not expose this device to rain or moisture. CHANNEL 1 R1 10K C1 .001 R5 33K Lo Cut 1458 2 R9 10K R8 470 P1 P100K R6 1K 6 5 Q1 J113 C17 1U C4 120PF R7 100K R12 6.8K P2 500 2 R13 1K Q2 2N3904 R14 150 R15 10K VrR51 10K Lo Cut C7 .001 1458 2 Q15 J113 R50 470 R52 10K Q7 2N3904 C11 50PF Vr+ Vr+ 6A R54 10K 7 R53 R49 100K R55 6.8K 1K F3 6A Q17 R62 470 V+ R61 2N3906 .1 1N4148 D11 R63 2K Q18 MPSA06 R64 330 Q19 2N3904 C12 R65 R66 22K 1K R67 10K R68 51 R81 10K 2N3904 Q27 D19 LDRG Q20 IRF9540 R79 10K R78 10K 2N3904 Q26 D18 LDRG VF2 R31 .1 R30 470 R32 1K 51 Q9 2N3906 HEATSINK D14 1N4148 D15 1N4148 D16 1N4148 Q25 D17 LDRY R100 4.7K U1B Vr+ C5 Vr+ 50PF R11 10K 1458 7 R10 1K 6A Q3 2N3906 D1 1N4148 R22 2K R23 22K Q4 MPSA06 R16 150K D2 1N4148 R25 330 R26 330 C6 .002 1 2 R27 100 Q10 IRF540 R34 V+ 3 4 R17 150K D3 1N4148 R28 2K Q8 MPSA56 R29 22K H4B HD4 H4C HD4 H4D HD4 HD4 R42 33K H4A R40 10K R41 100K Q14 D10 LDRR 2N3904 R38 10K R39 100K R19 R20 470 1K C3 .01 V+ F1 R18 .1 R21 10K Q5 2N3904 R24 51 R36 10K R37 100K Q6 IRF9540 D4 D5 D6 R102 Q11 4.7K 2N3904 D7 LDRY V+ RISQUE DE CHOC - NE PAS ENLEVER J1 1 2 3 U1A BRIDGING To bridge the RA200, first ensure the power is off. Move the Bridging switch to the "Bridge" position. The Channel 1 Volume control will be the master volume, Channel two Volume is inactive. Connect the input to Channel 1 input, then connect the load (speakers) to the two positive (red) banana jacks. Make no connections to the black posts. The level meters will both light, and the output power into 8 ohms is the sum of the LEDs that light. FAULT PROTECTION The fault protection in the RA200 limits the current to the output stage in the faulted channel and turns on all the LEDs in that channel. This mode is entered whenever the output stage is called upon for too much power, it may also be fooled by impedances lower than four ohms - which may cause the output stage to overheat and burn up the MOSFETs. Since the RA200 is convection cooled, the unit radiates heat from the rear panel R2 10K 3 1 1N4148 1N4148 1N4148 R35 10K C2 470PF 4 8 1 2N3904 Q12 D8 LDRG 5 2N3904 Q13 VrR4 33K R3 1K Vr+ J4A RCAX2 1 R103 1M H1D D9 LDRG 32 3 J4B RCAX2 2 Vr- R104 1M SW2A DPDT H?A HCN2 1 1 R105 1M 1 D25 1N4148 3 4 H?A HCN2 100 3 H1E R47 33K CHANNEL 2 R43 10K R44 10K C8 470PF R45 1K J2 1 2 3 8 U2A 3 1 5 1458 C9 .01 6 5 U2B R33 10K V+ 4 1 VrR46 33K D26 R87 22K R88 10K Vr+ R90 10K 1N4148 D24 LDRR P101 P100K H1A H1B H?A H?A HCN2 HCN2 SW2B C10 DPDT 120PF 4 NORMAL 5 6 R48 1K 2 1 R80 100K 1 1 BRIDGE P102 500 PROTECT R91 Q29 2N3904 R89 470 t Q30 2N3904 10K R92 1M Vr- SET P2 & P102 FOR 1 - 2 mV ACCROSS R11 & R111 R56 1K Q16 2N3904 R57 150 R58 10K R59 150K 5 R82 100K .002 R69 330 R60 150K VrQ31 Vr+ 2N3904 D22 ZD12V -12V C16 10U D12 1N4148 R72 1K R74 10K R71 2K R73 22K Q21 MPSA56 R70 100 Q23 IRF540 R75 51 R83 10K 2N3904 R84 100K 2N3904 Q28 D20 LDRR 32 R101 V+ R98 C13 6800UF R94 22K T1 C18 C14 6800UF D21 RED R95 1K R96 V10K C15 10U 1K R99 10K THERMISTOR 10K@23c 4 AMP F5 SW1 100 HEATSINK Q22 2N3906 D13 1N4148 V+ R85 33K 4 J3 SW SPST 503 CP8010 2 BR1 1 R93 3.3K Q32 Vr2N3906 Q24 2N3904 R76 470 ROLLS CORPORATION 5968 S 350 W Murray, UT 84107 R77 .1 Title Size: Rb Date: RA200 Amp Board Document Number: ra200.sch Sheet Rev: C 1 of 1 D23 3 PLUG AC MALE MAINS TRANSFORMER ZD12V 12V LAST R72 C15 V- F4 6A 22 August 2002