Marantz 6370Q Manual

The Marantz 6370Q is a high-quality belt-drive turntable featuring quartz-controlled direct drive system, adjustable pitch control, strobe illumination, anti-skate adjustment, viscous-damped cueing, S-shaped tonearm, and removable hinged dust cover. Designed for audiophile-grade vinyl playback with precision speed accuracy and minimal wow and flutter. Below are key sections for safety, features, installation, setup, operation, and maintenance.

Features at a Glance

Key components: Quartz-controlled direct drive motor, S-shaped tonearm, adjustable counterweight, anti-skate control, pitch adjustment, strobe disc, viscous-damped cueing lever, removable dust cover.

Feature	Description
Quartz-controlled drive	Precise speed accuracy with quartz lock
Pitch control	±8% adjustable pitch variation
Strobe illumination	Visual speed verification with strobe dots
Anti-skate adjustment	Prevents tonearm drift across record
Viscous-damped cueing	Smooth lowering and raising of tonearm
S-shaped tonearm	Low-mass design for optimal tracking
Removable dust cover	Hinged acrylic cover for protection
Speed selection	33⅓ and 45 RPM operation
Strobe dots	33⅓ (black) and 45 (red) RPM indicators
Power switch	Integrated start/stop control

Installation

Unpack and inspect contents. Place on stable, level surface away from vibrations.

1. Install platter: Place platter on spindle, ensure proper seating.
2. Mount belt: Carefully stretch drive belt around motor pulley and platter.
3. Install dust cover: Attach hinges to base, secure dust cover.
4. Connect to amplifier: Use RCA cables to phono input.
5. Connect power: Plug into AC outlet.

WARNING! Handle tonearm with care; avoid dropping or applying excessive force. Keep away from magnetic fields.

First-Time Setup

Power on turntable; perform initial calibration.

1. Balance tonearm: Adjust counterweight until tonearm floats horizontally.
2. Set tracking force: Rotate counterweight to recommended force for cartridge.
3. Set anti-skate: Match anti-skate setting to tracking force.
4. Verify speed: Check strobe dots under illumination for proper speed.
5. Cartridge alignment: Ensure proper cartridge alignment using protractor.

CAUTION! Use proper tracking force to prevent record and stylus damage.

Specifications

• Drive System: Quartz-controlled direct drive
• Speeds: 33⅓ and 45 RPM
• Wow and Flutter: ≤0.025% (WRMS)
• Signal-to-Noise Ratio: ≥78dB (DIN B)
• Tonearm: S-shaped static balanced
• Effective Length: 222mm
• Overhang: 15mm
• Tracking Force Range: 0-3g
• Power Requirements: 120V AC, 60Hz
• Dimensions: 450×360×150mm (W×D×H)
• Weight: 6.5kg

Controls and Settings

Front panel controls: POWER, START/STOP, SPEED SELECT (33/45). Tonearm adjustments: Counterweight, anti-skate dial, cueing lever, height adjustment.

Speed Control: Quartz lock ensures precise speed; pitch control for fine adjustment. Strobe illumination for visual speed verification.

Tonearm Setup: Counterweight rotation for tracking force, anti-skate matching, cueing lever for gentle lowering/raising. Height adjustment for proper VTA.

Connecting to Audio System

RCA outputs: Connect to phono input of amplifier/receiver. Ground wire: Attach to ground terminal.

1. Turn off amplifier before connecting.
2. Connect RCA cables to phono input (red/white).
3. Attach ground wire to ground terminal.
4. Select phono input on amplifier.

Tip: Ensure proper grounding to eliminate hum; keep cables away from power cords.

Playing Records

Supports 12-inch and 7-inch vinyl records.

1. Select speed: Choose 33⅓ or 45 RPM based on record.
2. Clean record: Use anti-static brush before playing.
3. Start platter: Press START/STOP button.
4. Cue record: Lift cueing lever, position stylus over record lead-in.
5. Lower stylus: Gently lower cueing lever to engage groove.
6. Stop play: Lift cueing lever at end of side, return tonearm to rest.

WARNING! Never move tonearm manually while stylus is in groove. Always use cueing lever.

Maintenance Features

Strobe verification: Check speed accuracy using illuminated strobe dots. Anti-skate calibration: Prevents uneven stylus wear. Cueing damping: Protects records and stylus from impact.

Care & Cleaning

Unplug before cleaning. Use soft cloth for dust cover; mild cleaner for stubborn marks. Clean records regularly with proper record cleaning system.

CAUTION! Never use solvents on dust cover; avoid touching stylus with fingers; replace stylus when worn.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Marantz; all rights reserved. For support, visit www.marantz.com or contact authorized service centers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Connections/input selection	Check RCA and ground connections; select phono input on amplifier.
Speed inaccurate	Quartz lock/pitch control	Reset pitch to zero; ensure quartz lock engaged; check strobe.
Tonearm drift	Anti-skate setting	Adjust anti-skate to match tracking force; level turntable.
Hum/buzz	Grounding issues	Ensure ground wire connected; check cable routing away from power.
Platter not turning	Belt drive/power	Check belt installation; ensure power connected; verify start button.

Service: Contact authorized Marantz service center; www.marantz.com