Sound Drops Out with CD or DVD Playback Remote Not Working External Amplifier(s) Shut Down (often or prematurely) Remotely Connected External Amplifier(s) Do Not Turn Off With PRE-1 “Hum” Noises Other Probable Causes of Speaker Noise Problems with the whole A/V System...
Do not install the PRE-1 on any stand, shelf, or other piece of furniture that is unable to support its weight. If a cart is used to move the PRE-1, use caution to avoid injury from tip-over.
The power cable for the PRE-1 should be unplugged from the outlet during severe electrical storms, or when unused for a long period of time. Only replace the fuse in the PRE-1 with a fuse of proper value and voltage rating.
It is important to save all the packing materials and the boxes in case your PRE-1 ever needs to be moved or shipped back to the factory for service. Make sure you keep your sales receipt. It is the only way...
PRE-1 Features Precision low noise phono input with moving magnet or moving coil capability Seven stereo inputs with precision instrumentation grade relay switching Microprocessor controlled pure analog signal path Full remote control operation Gold plated discrete RCA connectors for all inputs and outputs ...
12. Power Button and standby LED The power button is a non-latching momentary button that 3. Tuner Source Selection Button turns the PRE-1 on or off. On indicates with a blue LED. Selects a properly connected Tuner as input source. Off indicates with red LED.
This rocker switch provides the master power for the PRE-1. Magnet. After it is in the ON position, the PRE-1 can be turned on 3. AUDIO Section (from left to right) manually from the front panel switch, remote control, or •...
3. Source Selection Buttons These buttons select the various PRE-1 source inputs. LEDs on the front panel of the PRE-1 will light in corre- spondence with the selected input. • CD - selects CD player input as source.
Connect the Left output on the CD player to When connecting to amplifiers and speakers, make sure the Left input of the CD INPUT section of the PRE-1, and to use the properly labeled connections. the Right output on the CD player to the Right input of the Check to make sure that you have connected the CD INPUT section of the PRE-1.
• If the hum persists, disconnect all the source compo- nents one at a time from the back of the PRE-1 until you identify the problem. (Ground loop isolators are available for audio lines and video. Ask Sherbourn...
Frequency Response: 5Hz - 80kHz +/- 0.05 dB a separate line. 5Hz - 250kHz +/- 1 dB • If the hum is heard from within the PRE-1 and not through the speakers, this may also be caused by Maximum Line Out Level: 9V RMS interference on the AC or DC lines.
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(1) receivers (including the SR-8100, SR-8200, and SR-120), preamp/processors (including the PT-7030, PT-7020C4, and PT-7020), preamplifiers (including the PRE-1), and the CD-1 CD Player (with the exception of the slot load CD engine) are covered by this warranty for five (5) years from the date of retail purchase by the original purchaser;...
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“RMA” written before the number. Parcels arriving without an RMA number on the outside of the box will be refused. Sherbourn Technologies, LLC Attn: Repair Department 131 Southeast Parkway Court...
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