User manual ROLLS MO2020

[. . . ] MO2020 TESTOSCILLATOR Signal Generator SINE/SQUARE WAVE GENERATOR TESTOSCILLATOR MO2020 FREQUENCY 500 1K 3K 10K 24K 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. [. . . ] This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. MO2020 TESTOSCILLATOR The MO2020 is a signal generator for electronic testing in the audio frequency range. It has a 1/4" unbalanced sine wave output, and a 1/4" unbalanced square wave output. For external control or sweeping of the frequency range, a 1/4" VCO input is provided to receive 1. 2 to 5 volts dc. · Freququency range from 20Hz to 24kHz · 1/4" unbalanced Outputs · Sine and Square wave outputs · -10 dB pad for referencing · Power Loop-Through for connection to additional unit Salt Lake City, Utah 8/99 MO2020 TESTOSCILLATOR SINE OUT 250 VCO INPUT 1. 2 - 5 VDC NORMAL -10 dB OUTPUT PAD PAD 100 20 Hz Owners Manual SQR LEVEL +7 DC DC IN LOOP 12 - 16 VDC SINE LEVEL +5 SQR OUT PWR -O dB +11 O -O dB +14 O + - INTRODUCTION Thank you for your purchase of the MO2020 Testoscillator. The MO2020 is designed to provide a sine wave, or square wave via 1/4" unbalanced jacks, for testing audio devices. The units frequency output varies from 20Hz to 24kHz. DESCRIPTION FRONT PANEL Output Pad: When depressed, the output level is dropped by 10 dB. Frequency: Varies the frequency generated by the MO2020 from 20Hz to 24kHz. PLEASE NOTE: THE FREQUENCY MARKINGS ON THE MO2020 ARE APPROXIMATE AND MAY VARY. FOR ACCURATE FREQUENCY SELECTION, USE A RELIABLE FREQUENCY COUNTER. Sine Level: Controls the output level of the Sine Out jack. SQR Level: Controls the output level of the SQR (square) Out jack. [. . . ] DC In: For connection to the included Rolls power supply. SPECIFICATIONS Output Level: Output Impedance: THD (Sine): Size: Power: +11 dB Sine +14 dB Square 100 <1% 4. 25" x 3. 75" x 1. 75" 12 - 16 Volts DC 50 mA SCHEMATIC Sheet 1 of 1 SQUARE OUT S IN E O U T ROLLS CORPORATION 5143 South Main Street Salt Lake City, UT 84107 U5A S IN E L E V E L P100K P H O N E 1 /4 2J4 P H O N E 1 /4 J3 P5 LM 13600 R7 330 C23 47U 1 13 14 50P. 4560 C7 10U 4 . 7 K RR8 330 C4 10K U3A R25 R24 4560 7 820P. 8 7 R21 3 . 3 K C2 VCC VCC 4560 U4A R27 100K LM 13600 VCO INPUT 1. 2 - 5 VDC 4 3 6 5 SINE OUT SQR OUT R19 100K R10 10K 2 R18 100K 820P. R9 3 . 3 K C21 1U U1B LM 13600 P2 W 100K 13 14 SINE/SQUARE WAVE GENERATOR VCC R3 30 3 R17 47K TESTOSCILLATOR . REQUENCY O P3 50K 7812 U2 330 LM 13600 VCC R31 VCC U1A 250 P H O N E 1 /4 J2 OUTPUT PAD FREQUENCY 500 1K 3K 10K SINE LEVEL +5 SQR LEVEL +7 R1 330 VCC 1N 4001 2 3 1 4 3 1 . 2 -5 V C O N T R O L R2 330 JA P D C 2 3 1 18VD C J1 100 20 Hz 24K PWR -O dB +11 O -O dB +14 O MO2020 TESTOSCILLATOR 12 TO JA P D C J5 1 5 2 D1 1K NORMAL D2 1N 751A -10 dB 8 7 R20 12K 1 LO C9 1K U. R22 10K PAD T R IM I R16 47K 2 G 6 16 12 R33 10K 15 MO2020 C1 D3 LDRG 9 10 3 C10 47U C8 1U 4 + - R5 4560 DC DC IN LOOP 12 - 16 VDC R6 330 U3B 7 P4 P100K 1 SQ U AR E LEVEL R13 100K VCC R11 10K 2 R15 100K 3 6 5 U5B Size Document Number: Ba M O 2 0 2 0 . S C H Date: 22-Apr-1999 68U . TAN T 120P. Testoscillator MO2020 R12 4 . 7 K C6 820P. SW 1A DPDT 100K R14 C3 0 / -1 0 9 10 1 3 R30 1K R32 3 . 3 K 3 . 3 K R26 R26B 6 . 8 K U4B R28 1K R23 100K R29 470 C5 Rev. A 8 8 4 6 16 12 1 5 15 2 11 11 [. . . ]