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. [. . . ] 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. It is intended for professional audio applications such as recording studios and small live performances. 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. 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. 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. [. . . ] 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 [. . . ]