INTRODUCTION
Thank you for your purchase of the ROLLS RA235 Stereo 35 Watt Power Amplifier. The RA235 is a virtually indestructible single rack space ampli- fier intended for musicians and studio owners alike. The unit is ideal for home studio applications or wherever a clean, efficient, medium wattage amp is required. Please read the following manual carefully to achieve the best results from this product.
INSPECTION
1. Unpack and Inspect the RA235 package
Your RA235 was carefully packed at the factory in a protective carton. Nonetheless, be sure to examine the unit and the carton for any signs of damage that may have occurred during shipping. 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.
DESCRIPTION
FRONT PANEL
| VOLUME 1 | VOLUME 2 |
|
PWR | CLIP | CLIP | R A 2 3 5 |
|
|
|
PWR: This LED indicates that the RA235 is receiving power.
VOLUME 1/VOLUME 2: Adjusts the output level of that channel.
CLIP: This LED indicates the channel circuitry is overloading.
REAR PANEL |
|
|
| ||
|
| SERIAL NUMBER |
| CHANNEL 2 INPUT | |
120 VAC | MODEL RA235 |
|
| O U T P U T S | |
50/60 Hz 15 VA | 235- | CHANNEL TWO | CHANNEL ONE | ||
| |||||
| CAUTION |
|
|
| |
| RISK OF ELECTRIC SHOCK | WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. |
|
|
|
|
MADE IN U.S.A. | DO NOT OPEN | TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK. |
|
| ||
| NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL RISQUE DE CHOC - NE PAS ENLEVER | CHANNEL 1 INPUT | ||||
CHANNEL INPUTS: 1/4" and RCA connectors. Connect the RCA jacks to the output of a line level device such as a tuner, cassette player, or CD player. Note: Do not directly connect the output of a phono player as those devices require special equalization.
Connect the unbalanced 1/4" jacks to the output of a mixer or preamplifier.
For MONO operation, plug one mono RCA connector between the two RCA jacks. Either Channel One or Channel Two 1/4" inputs may be used as the mono input.
INSTALLATION
Mount your RA235 into a safe and sturdy rack. Connect the outputs of
your signal source to the input(s) of the RA235, and connect the outputs to your speakers. Observe the polarities as indicated in the Rear Panel descriptions and the diagram below.
THIS DIAGRAM IS A CONNECTION EXAMPLE ONLY. DO NOT USE BOTH THE RCA AND 1/4" INPUTS AT THE SAME TIME.
Plug the RA235 power cord in to a properly grounded AC power source and press the Power switch up, so the red part of the switch is showing, to apply power to the unit.
BURN WARNING! - THE FRONT PANEL OF THE RA235 IS THE HEAT DISTRIBUTION FOR THE OUTPUT STAGE, IT WILL VARY BETWEEN 180 TO 200 DEGREES FAHREN-
HEIT.STEREO
MIXER
HIFITUNER
|
| SERIAL NUMBER |
| CHANNEL 2 INPUT |
120 VAC | MODEL RA235 |
|
| O U T P U T S |
50/60 Hz 15 VA |
| 235- | CHANNEL TWO | CHANNEL ONE |
|
|
| ||
| CAUTION |
|
|
|
| RISK OF ELECTRIC SHOCK |
| WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. |
|
|
|
|
| |
MADE IN U.S.A. |
| DO NOT OPEN |
| TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT NOT REMOVE BACK. |
|
|
|
| |
|
|
| NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL RISQUE DE CHOC - NE PAS ENLEVER | CHANNEL 1 INPUT |
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SCHEMATIC |
|
|
|
|
|
|
|
|
|
|
|
| |
| R C A | P C |
|
| C 3 |
|
|
|
|
|
|
| |
| J 1 A |
| P 1 |
|
| 1 U |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| V+ |
|
|
|
| |
|
|
|
|
|
| R 1 | R 2 |
| 1 |
|
|
| |
|
|
|
|
|
| 1 0 K |
|
|
|
| |||
| P H O N E | P 1 0 0 K |
|
| 1 K |
|
| U 1 |
|
|
| ||
| 1 / 4 |
|
|
|
|
| 3 |
|
|
| |||
| J 2 |
|
|
|
|
|
|
| 4 |
|
|
| |
|
|
|
|
|
|
|
| C 4 V- |
|
|
|
| |
|
|
|
|
|
|
|
|
| 7 |
|
|
| |
C H A N N E L | 1 |
|
|
|
|
| 2 2 0 P F |
|
|
| |||
|
|
|
|
|
| 8 |
|
|
| ||||
|
|
|
| R 5 |
|
|
| C 5 |
|
|
|
|
|
|
|
|
|
| L 1 |
|
|
|
|
|
| ||
|
|
|
| 1 0 K |
|
|
| L M 3 8 7 5 |
|
|
| ||
| R E D 1 |
| C L I P |
| 0 . 7 u2 H7 P F |
|
|
|
| ||||
| H D R 2 | D 2 |
|
|
| R 3 |
|
|
|
| |||
|
|
| A |
|
|
|
|
|
|
| |||
|
| 1 | R 6 L D R R |
|
|
| 4 7 K R 4 |
|
|
| |||
| B L K | A | 1 K |
|
|
|
| 1 K |
|
|
| ||
|
|
| H D R 2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| C 6 |
|
|
| |
| R C A | P C |
|
| C 7 |
|
| 4 7 U |
|
|
| ||
|
|
| 1 U |
|
|
|
|
|
|
| |||
| J 1 B |
|
|
|
|
|
|
|
|
|
|
| |
|
|
| P 2 |
|
|
|
|
| V+ |
|
|
|
|
|
|
| P 1 0 0 K |
| R 7 | R 8 |
| 1 U 2 |
|
|
| ||
| P H O N E |
| 1 0 K | 1 K |
| 3 |
|
|
| ||||
| 1 / 4 |
|
|
|
|
|
|
|
|
| |||
| J 3 |
|
|
|
|
|
|
|
| 4 |
|
|
|
|
|
|
|
|
|
|
|
| V- |
|
|
|
|
|
|
|
|
|
|
| 2 2 0 P FC 8 | 7 |
|
|
| ||
|
|
|
|
|
|
|
|
|
| 8 |
|
|
|
C H A N N E L | 2 |
|
|
|
|
| C 9 |
|
|
|
|
| |
|
|
|
| R 1 1 |
|
| L 2 | 2 7 P F | L M 3 8 7 5 |
|
|
| |
|
|
|
| 1 0 K |
|
| 0 . 7 u H |
|
|
|
|
| |
|
|
|
| C L I P |
|
|
|
|
| R 9 |
|
|
|
| R E D 1A |
| D 3 |
|
|
| R 1 0 |
|
|
| |||
|
|
|
|
| 4 7 K 1 K |
|
|
| |||||
|
| H D R 2 | R 1 L2 D R R |
|
|
|
|
|
|
|
| ||
|
| 1 |
| 1 K |
|
|
|
|
| C 1 0 |
|
|
|
| B L K H D R 2 |
|
|
|
|
|
|
|
|
| |||
|
|
| A |
|
|
|
|
|
| 4 7 U |
|
|
|
| S W 1 | T 1 |
|
| V+ |
| R 1 3 |
|
|
| |||
| 2 - 0 0 - 4 8 8 0 |
|
|
|
|
|
|
| |||||
|
|
| 4 |
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
| |
3 | S W S P S T | C P 8 0 1 0 |
| C 2 | 2 2 K |
|
|
| |||||
| A C ? |
|
|
|
| C 1 14 7 0 0 U F |
|
|
| ||||
|
|
|
|
|
|
| 5 0 3 |
|
|
|
|
| |
| 2 |
|
| 2 | B R 1 1 |
|
|
| D 1 |
|
|
| |
|
|
|
|
|
|
|
| C 1 |
| L D R R |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
1 | A C P L U G |
|
| C 1 3 |
| 4 7 0 0 U F | ROLLS CORPORATION |
| |||||
|
|
|
|
| 5 0 3 |
|
|
|
| ||||
|
|
|
|
| 3 |
|
|
|
|
| 5143 South Main Street |
| |
|
|
|
|
|
|
|
|
| C 1 2 |
| Salt Lake City, Utah84107 |
| |
|
|
|
|
|
|
| V- |
| 5 0 3 | Title POWER AMPLIFIER RA235 |
|
| |
|
|
|
|
|
|
|
|
|
| Size: | Document Number: | Rev: |
|
|
|
|
|
|
|
|
|
|
| Ba | RA235.SCH |
|
|
|
|
|
|
|
|
|
|
|
| Date: | Sheet 0 of | 0 | |
