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Related Manuals for Channel D Lino C 3.0
Summary of Contents for Channel D Lino C 3.0
- Page 1 Channel D Lino C 3.0 Balanced Transimpedance Direct-Coupled Wide Bandwidth Low Distortion Low Noise Precision Phono Preamplifier For Low Output Moving-Coil Phono Cartridges Optional Moving-Magnet and Voltage-Mode MC Inputs Installation and Use Manual...
- Page 2 QUICK START 1. Allow your Lino C to fully acclimate to ambient temperature for a few hours before removing it from the inner plastic bag. 2. Current mode phono preamplifiers use balanced input wiring. Balanced wiring consists of a twisted pair of two independent conductors inside a shield, for a total of three independent conductors.
- Page 4 Channel D Lino C 3.0 Installation and Use Manual 3C7 7 ; % www.channel-d.com 1TS S X 1TU WNLM a % % % 1MFSS Q 2 /QQ NLM X...
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Page 5: Table Of Contents
Table of Contents Page Getting Started Signal Connections Optional Moving Magnet Input Optional Voltage-Mode Moving Coil Input Power Up Power Down About the Lino C Rechargeable Battery Power Supply “Off the Grid” (OTG) Mode Lino C Configuration Bottom Chassis Cover) Gain / Damping Battery Power Supply Auxiliary Settings Optional signal conditioning settings and inputs: 16 Hz High Pass Filter, MONO, POLARITY... - Page 6 The high precision (guaranteed better than ± 0.1 dB) RIAA EQ accuracy provides standard RIAA- corrected phono preamplifier outputs with outstanding quality. The low impedance AGM battery based power supply with proprietary Channel D - developed charging, maintenance and galvanic isolation circuitry provides outstanding “off the grid” isolation from power supply related noise and interference issues that preamplifiers with conventional power supplies must...
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Page 7: Getting Started
Lino C 3.0 rear panel shown above with optional Moving Magnet and Voltage Mode Moving Coil Inputs MC Transimpedance Input (also applies to optional Voltage Mode input) •... -
Page 8: Signal Connections
The balanced outputs also can be configured to bypass the RIAA EQ for connection to the balanced inputs of a professional audio interface, for use with Channel D’s Pure Vinyl™ software (for Mac computers) for applying RIAA compensation. (Consult the Pure Vinyl software User Guide for more information.) -
Page 9: Optional Moving Magnet Input
Optional Moving Magnet Input Signal Inputs • The Moving Magnet inputs are balanced, but use RCA input connectors. Input cables can be standard unbalanced coaxial cables, or balanced, shielded twisted pair. If using shielded twisted pair balanced cable, note that the capacitance can be 40 - 50 pF per foot, and this would need to be added to the capacitive load switch settings. -
Page 10: Optional Voltage-Mode Moving Coil Input
Optional Voltage - Mode Moving Coil Input Signal Inputs • The Lino C second MC inputs are balanced, requiring balanced cables for optimal performance. An internal jumper setting is provided to configure the input for Unbalanced operation; however even when using a coaxial input cable, better results are usually obtained by keeping the input configured for Balanced operation. -
Page 11: Power Up
Power Up • Connect the 5 volt power adapter to the power input jack on the back of the Lino C, and then connect the line to utility power. The Lino will activate after several seconds. A faint click may be heard as the internal relays are engaged. -
Page 12: Off The Grid (Otg) Mode
In answer to user inquiries: the performance of the Lino C will not be improved by substituting a battery for the power adapter. The Lino C depends on having a relatively stable 5 volt (within ± 0.2 volt) DC input. This is not possible to achieve with any type of battery chemistry without also providing additional voltage regulation. -
Page 13: Lino C Configuration Bottom Chassis Cover) Gain / Damping
Lino C Configuration - Bottom of Chassis The internal signal routing of the Lino C is configurable. The factory “out of the box” settings are preconfigured for the most common usage scenario, or can be changed to suit your preferences. Unplug the power supply from the jack on the back of the Lino C before changing the GAIN, DAMPING or BALANCED OUT settings. - Page 14 • If the levels are too low, increase the gain on the Lino C. (For monitoring / playback, if the output levels of your interface can be adjusted independently of the input levels, use the +4 dBu setting for the output.) (2) Balanced Output Signal Connectors (BAL OUT) Balanced Output Phono Stage (factory setting): slide the two DIP switches to the RIAA position.
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Page 15: Battery Power Supply Auxiliary Settings
Green with the function off. The front panel LED indicators automatically adjust brightness in response to ambient light levels, becoming quite dim in a darkened room. The standard Lino C 3.0 is supplied without the indicators and engraved labels for those who prefer an uncluttered front panel. -
Page 16: 16 Hz High Pass Filter, Mono, Polarity
Measured Frequency Response (4 Hz to 4 kHz frequency range shown) of Optional 16 Hz 18 dB / Octave High Pass (Rumble) Filter Optional Signal Modifier and Input Selector Switches • 16 Hz HPF: Activates the 16 Hz 18 dB / Octave high pass (rumble) filter. Use with warped records to preserve signal headroom and avoid low frequency woofer excursions. -
Page 17: Charging / "On Grid" Signal Port
(8) Charging / On Grid Signal Port: A 2.5 mm barrel type connector jack is provided on the bottom of the preamplifier. When the Lino C is playing music (signal present) the jack (tip contact) will have 5 volts. When the Lino C is in charging mode (or powered down), 0 volts is supplied at the jack tip contact. The 0 volts is referenced to chassis ground (circuit common), which is connected to the “barrel”... -
Page 18: Agm Rechargeable Battery
The AGM battery is capable of supplying over 50 amperes of peak current. The battery is conditioned and kept float-charged by a proprietary circuit developed by Channel D, rather than use an "off the shelf" microprocessor based conditioning and monitoring circuit (which is necessary for Li-ion), which would introduce unwanted noise. - Page 19 The replacement battery should be at ambient room temperature before installing. If you don’t wish to perform the battery replacement yourself, the Lino C can be shipped to Channel D for battery replacement. Please contact Channel D for shipping information and pricing, and a Return Material Authorization number.
- Page 20 End-User Battery Replacement Instructions Important Safety Notice: when replacing batteries, hazardous voltages aren’t present, but the battery is capable of supplying large currents (similar to an electric arc welder). This high current capability is important to the superior audio performance of the Lino C, but also necessitates caution.
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Page 21: Opening The Lino C Chassis / Removing The Lid
Opening the Lino C Chassis / Removing the Lid 1. Disconnect the power adapter and all signal connections from the Lino C. 2, Place a soft cloth under the work area to keep from marring the finish on the Lino C. Opening the chassis of the Lino C requires removing a total of 6 fasteners. - Page 22 Reassembling the Lino C: 1. Position the lid so that the groove inside the rear edge of the cover is above the protruding tongue on the rear panel. Carefully guide the lid so that the machined tongue is inserted. When correctly positioned, the bottom of the back chassis plate will rest on the base, almost flush with the back edge of the base.
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Page 23: Specifications
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Page 24: Sample Riaa Accuracy Graph
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Page 25: Troubleshooting
APPENDIX - Troubleshooting Troubleshooting / Problem: There is a clicking sound emanating from the Lino C / or the power indicator LED cycles off and on (or doesn’t come on at all) / or the Lino C is not producing any audio signal. Diagnosis: The internal battery is depleted. - Page 26 If not, and the GREEN LED stays extinguished only with the signal inputs disconnected (follow the steps listed under Solution above), there is an issue with the signal connections to the turntable that must be corrected for the Lino C to operate properly. Please contact Channel D if you need assistance.
- Page 27 Troubleshooting Questions Question: Where is the serial number for my Lino C? Answer: The serial number can be found in four places: 1. On the shipping document / packing list 2. On the printed graph of RIAA accuracy measurement supplied with your Lino C 3.
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Page 28: Lino C Galvanic Isolation Block Diagram
R&D efforts. These functions (presuming one already possesses expertise in battery technology) are nearly trivial to implement via software with a digital microcontroller; consider that Channel D also is well-versed in designing and developing digital computer software (after all, the “D” stands for digital)! However, we believe that incorporating computerized digital circuitry into a very sensitive analog component that’s responsible for amplifying extremely low level signals is inadvisable. -
Page 29: Battery Circuit Board Description
Appendix: Battery Circuit Board and Auxiliary Settings - IMPORTANT: Disconnect the power adapter from the rear of the Lino C to power it down before making changes to configuration settings. - Use the supplied nonconductive stylus for changing any switch settings. Protection Fuse Position for Battery Bypass The battery may be bypassed and the Lino C operated without the battery by moving the circuit protection fuse to the sockets labelled NOBATT. - Page 30 White LED - Lino C is in Charge Mode / Battery Charging This LED will always be extinguished in Off The Grid Mode. Blue LED - Power Activated (battery is connected to the Lino C preamplifier circuitry via a power relay) This LED will always be illuminated whether or not the Lino C is in Off The Grid Mode.
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Page 31: Using An Iot Relay For Automation Of Off The Grid Mode
6. Plug the Lino C power supply two prong utility cord into the “Normally On” outlet on the AC/DC Control Relay. (Note: unlike the Lino C 2.0, the Lino C 3.0 doesn’t require a “priming” step.) 7. Very Important: confirm proper operation by the illumination of the green Switch Active LED on the AC/DC Control Relay.