The Mitsubishi LT-5V is a high-quality turntable designed for optimal audio playback. This instruction book provides comprehensive details on its specifications, usage, and maintenance, ensuring users can achieve the best performance from their device.
Function Description:
The LT-5V is a logic-controlled linear tracking record player. Its primary function is to accurately reproduce audio from vinyl records. The linear tracking mechanism ensures that the tonearm maintains a constant tangent to the record groove, minimizing tracking error and improving sound quality. The turntable features automatic operation for starting and stopping playback, as well as repeat play functionality. It also includes a disc clamper to secure records during playback and a dust cover for protection.
Important Technical Specifications:
Phono Motor Section:
- Drive System: Belt drive
- Motor: PLL DC servo motor
- Platter:
- Size: 30.4 cm (12")
- Weight: 1.3 kg (2.9 lb)
- Material: Aluminum diecast
- Platter Speed:
- Selection: 33-1/3, 45 r.p.m.
- Adjustment: Automatic, ±3.0%
- Wow and Flutter: ±0.045% (Wrms)
- Signal to Noise Ratio: 65 dB (IEC-B), 76 dB (DIN-B)
Tonearm Section:
- Type: Straight universal type, static balanced
- Overall Length: 22.3 cm (8-3/4")
- Effective Length: 18.0 cm (7-1/12")
- Overhang: 14 mm (9/16")
- Tracking Error: ±0.1°
- Head Shell: GFRP (6.2 g)
Cartridge Section:
- Model: AT-12E (Audio Technica)
- Type: Dual moving magnet
- Stylus: 0.4 x 0.7 mil elliptical diamond
- Recommended Tracking Force: 1.5 g
- Output Level (1 kHz, 5 cm/sec): 3.5 mV
- Frequency Response: 15 ~ 26,000 Hz
- Channel Separation (1 kHz): 23 dB
General:
- Power Consumption: 14 W
- Dimensions (W x H x D): 466 x 430 x 200 mm (18-3/8 x 16-15/16 x 7-7/8")
- Weight: 12.5 kg (27.5 lb)
Usage Features:
- Automatic Playback: The turntable automatically starts playing a record when the "START" button is pressed. The tonearm lifts, moves to the outer groove, and gently lowers onto the record.
- End of Play: At the end of a record, the tonearm automatically lifts, returns to the arm rest, and the platter stops rotating.
- Stop Function: Pressing the "STOP" button during playback will cause the tonearm to return to the arm rest and the platter to stop.
- Repeat Play: The "REPEAT" button allows for continuous playback of the same record. The repeat indicator lights up when active.
- Lift/Cue Function: The "LIFT/CUE" button allows users to lift and lower the tonearm at any point on the record, providing manual control over playback. When the tonearm is in the UP position, it can be moved inward or outward using the directional buttons.
- Mid-Record Start: Users can initiate playback at a specific point on a record by holding the "START" button to move the tonearm, releasing it at the desired position, and then pressing "LIFT/CUE" to lower the tonearm.
- Rotational Speed Adjustment: The platter's rotational speed can be finely adjusted using dedicated knobs while observing stroboscope patterns through the stroboscope window. The turntable automatically selects 33-1/3 r.p.m. for 30 cm (12") records and 45 r.p.m. for 17 cm (7") records. A "SPEED RESET" button is available for manual speed switching if needed.
- Lead-in Position Adjustment: A screw is provided to adjust the lead-in position of the tonearm, ensuring the stylus drops correctly onto the record groove.
- Tracking Force Adjustment: The tracking force can be adjusted using a weight on the tonearm, with a scale to ensure precise setting. The recommended tracking force for the supplied AT-12E cartridge is 1.5g.
- Stylus Height Adjustment: This adjustment ensures the stylus tip is at the correct height to prevent damage during automatic playback, especially when changing cartridges. An overhang gauge is provided for accurate measurement.
- Disc Clamper: A disc clamper is used to secure the record on the center shaft, preventing it from falling.
- Leg Adjustment: The height of the turntable's legs can be adjusted to ensure horizontal placement, which is crucial for accurate tonearm movement.
Maintenance Features:
- Cleaning:
- Dust Cover: Wipe lightly with a soft cloth to prevent static electricity. For heavy dirt, wash with soap and water.
- Stylus: Remove dust from the stylus tip with a soft brush, brushing from the inside out. Avoid touching the stylus tip with fingers.
- Electronic Control Parts: Wipe the light emitter and prisms with a soft cloth, being careful not to damage them.
- Cabinet: Wipe with a soft cloth. For heavy dirt, use a weak solution of mild soap and water, wrung out dry. Avoid volatile materials like alcohol, thinner, or benzine.
- No Lubrication Needed: The turntable bearings are pre-lubricated with special oil and do not require additional lubrication. Any attempt to oil the unit may cause damage.
- Safety Precautions:
- Always use the correct A.C. power source.
- Do not plug/unplug the power cord with wet hands.
- Prevent water or foreign objects from entering the unit.
- Handle the power cord with care, avoiding sharp bends or twists.
- Do not touch the inside of the unit due to high voltages; all repairs should be done by authorized service dealers.
- Disconnect power at the first sign of trouble (unusual noise, odor, or malfunction).
- Avoid direct sunlight, air conditioners, or dusty/humid areas for placement.
- Place the unit on a level and rigid surface to prevent howling and ensure accurate tonearm movement.
- Provide at least 7.5 cm (3 inches) of space above the unit for the dust cover to open.
- Ensure all connections are made securely before plugging in the power cord.
- Turn off the amplifier power before making connections to prevent speaker damage.
- Use clean records to prevent stylus wear and record groove damage.
- Special handling is required for transparent, colored, badly warped, or 25 cm (10 in.) records, often requiring a black sheet under the record.
- In case of power failure, do not manually move the tonearm; press the "STOP" button once power is restored.
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