Gemini sound p 700 service manual
This is the 11 pages manual for gemini sound p 700 service manual.
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Extracted text from gemini sound p 700 service manual (Ocr-read)
Page 1
introduction Congratulations on purchasing this Gemini P-700 Power Amplifier! Youve made a really wise choice because this state-of-the-art amplifier has the latest features and technology and is backed by a three-year warranty! We know youre anxious to hook everything up and start mixing beats and cranking up the volume on those hot dance tracks, but we suggest reading this instruction manual first as there are some really cool features on this amplifier that we wouldnt want you to miss! features - State-of-the-art circuitry for the finest sound quality and reliability - High output power to drive professional speakers without clipping but also tame enough for home use - Protection Circuitry (short circuit, thermal cut- off, sub/ultrasonic frequency filters, turn-on delay, main fuse, secondary fuses) - Unbalanced stereo inputs with RCA type jacks - Ground lift switch for achieving the quietest possible operation - Large blue-light illuminated VU meters to give you greater control… and they look really cool - Ultra-modern design with professional 19 rack mounts. - Front-to-rear airflow with variable speed fan control for maximum cooling and quietest possible operation. - Variable speed fan for quieter operation with softer music and home use. - Compact 2U well balanced enclosure - Steel reinforced chassis construction for durability and longevity. Common sense Some of these things go without saying, but were going to say them anyway! - Read all operating instructions before using this equipment. - To reduce the risk of electrical shock, do not open the unit. There are NO USER REPLACEABLE PARTS INSIDE. For all repairs or service questions please contact the Gemini Service Department or your authorized dealer to speak to a qualified Gemini Sound Products technician. - Be sure to allow adequate front and rear ventilation to avoid possible heat damage to your equipment. - Be sure that AC power is OFF and all level controls are set to MINIMUM before making connections. This will eliminate any chance of unexpected loud buzzes, pops or clicks that could damage your speakers. - DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. - Operators of electronic equipment should never be in contact with water - Keep your power amplifier grounded for maximum safety by always using a 3-prong plug. If you are using an extension cord, always use a 3-prong cord as well. - DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY CONTROLS OR SWITCHES.
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hook it up Okay, lets get connected! REAR PANEL Input Section: Input Jacks (1) Your amplifier has unbalanced stereo RCA type jacks, with the tip of the jack being positive (+) and the sleeve part being negative (-)/ground. Connect the output of your mixer here. Output Section: Disconnect unit from the AC power source before making any connections. Pay close attention to polarity when connecting your speakers. (Connect the positive wire to the red terminal and the negative wire to the black terminal). Connecting your speakers using the wrong polarity will not damage your speakers, but will impact the quality of the sound (lack of bass and incorrect stereo image). Speaker Outputs (3): the speaker output connectors are terminals that will accept a standard banana plug, or bare wire. Make sure that all the connections are clean when using bare wire connections. If any strands of wire from one connector touch the connector next to it, the sound will distort, and your amplifier will overheat. ✰ NOTE: Total speaker impedance must not be lower than 4Ω (Ohm) per channel AC Power Section: - Fuse (4): replace with proper type and rating. - AC Inlet (6) is used to attach the power cord to the unit. - AC line voltage switch (5) allows reconfiguring amplifier for either 110-120 V or 220-240 V AC lines. - Ground Lift Switch (2) is used to lift the ground from the chassis. (See the Ground Lift Switch Instructions for more detail.) FRONT PANEL - Power Switch (10): turns the unit on and off. - Power LED (9): the power LED lights when the power is on. If the power LED does not light, refer to the trouble-shooting guide. - Level Controls (7): control the input levels for each channel. - Large blue-light illuminated VU meters (8) display the output level of each channel. operation Stereo Operation The unit has two channels for stereo operation. Each channel provides a separate signal at the speaker outputs. The following instructions are for use with 4 Ω or 8 Ω speakers of matched power ratings. 1. With the power OFF, connect your input cables to the Channel A and Channel B inputs using the RCA INPUT JACKS (1) 2. Connect your speakers to the Channel A and Channel B SPEAKER OUTPUTS (3). (The total speaker load must be at least 4 Ω per channel.) 3. With the LEVEL CONTROLS (7) of both channels set to zero (fully counterclockwise), turn the POWER SWITCH (10) ON. Okay, now try playing some music and/or talking into your microphone, and set the level of your input as high as you think youll need it. This way it will be as high above the amplifiers noise floor as possible so youll get the best possible sound with the least amount of noise. 4. Now adjust your LEVEL CONTROLS for each channel to your desired listening level. You also have the choice of keeping the volume of both speakers equal, or for certain situations you can adjust the volume so one side will be louder than the other.