marantz slt 12 manual

The Marantz SLT-12 is a professional turntable system featuring direct drive motor technology, precision tonearm, adjustable tracking force, anti-skating control, pitch adjustment, quartz lock system, and multiple speed settings. Designed for audiophiles and professional use with high-quality audio reproduction capabilities. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Direct drive motor, precision tonearm, adjustable counterweight, anti-skating dial, pitch control, start/stop buttons, speed selector.

Feature	Description
Direct Drive Motor	High-torque motor for stable rotation
Precision Tonearm	Low-mass design for accurate tracking
Adjustable Counterweight	For precise tracking force calibration
Anti-Skating Control	Prevents tonearm drift during playback
Pitch Control	±8% adjustable pitch variation
Quartz Lock System	Maintains precise rotational speed
Speed Selector	33 1/3, 45, and 78 RPM settings
Start/Stop Buttons	Electronic control for smooth operation
Strobe Indicator	Visual speed verification system
RCA Outputs	Standard audio outputs for amplification

Installation

Unpack and inspect contents. Place on stable, level surface.

1. Install platter: Place platter on center spindle ensuring proper alignment.
2. Mount tonearm: Remove transit screws and secure tonearm assembly.
3. Install cartridge: Carefully mount cartridge to headshell with proper alignment.
4. Connect to audio system: Use RCA cables to connect to amplifier/phono input.
5. Connect power: Plug into appropriate AC power source.

WARNING! Handle cartridge and stylus with care to avoid damage. Ensure turntable is level for optimal performance.

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 (1.5-2.0g typical).
3. Adjust anti-skating: Set to match tracking force value.
4. Set speed: Select appropriate RPM for record being played.
5. Verify speed: Use strobe indicator to confirm accurate rotation.

CAUTION! Always handle records by edges. Keep stylus clean and replace when worn.

Specifications

• Drive System: Direct drive DC brushless motor
• Speeds: 33 1/3, 45, 78 RPM
• Wow & Flutter: Less than 0.025% WRMS
• Signal-to-Noise: Greater than 78dB
• Tonearm: Static balanced S-shaped tonearm
• Effective Length: 237mm
• Tracking Force: 0-3g adjustable
• Power Requirements: 120V AC, 60Hz
• Dimensions: 450mm x 370mm x 150mm
• Weight: 8.5kg

Controls and Settings

Front Panel: POWER, START/STOP, SPEED SELECTOR, PITCH CONTROL.

Tonearm Controls: LIFT LEVER, COUNTERWEIGHT, ANTI-SKATING DIAL, HEADSHELL LOCK.

Speed Selection: 33/45/78 RPM buttons with LED indicators. Pitch Control: ±8% adjustment range with center detent. Start/Stop: Electronic buttons for smooth operation. Strobe: Built-in strobe pattern for speed verification.

Connecting to Audio Systems

RCA Outputs: Standard phono level outputs. Ground Terminal: For system grounding.

1. Turn off all equipment before connecting.
2. Connect RCA cables to amplifier PHONO inputs.
3. Attach ground wire to amplifier ground terminal.
4. Ensure all connections are secure.
5. Power on amplifier before turntable.

Tip: Use high-quality interconnects for best audio performance.

Playing Records

Supports all standard vinyl record formats.

1. Clean record: Use anti-static brush before playback.
2. Select speed: Choose appropriate RPM for record.
3. Lift tonearm: Use cueing lever to raise tonearm.
4. Position stylus: Move tonearm to lead-in groove.
5. Lower tonearm: Gently lower using cueing lever.
6. Adjust volume: Set appropriate listening level.
7. End playback: Lift tonearm at record end and return to rest.
8. Stop platter: Press STOP button.

WARNING! Never move tonearm manually without engaging cueing lever. Always store records vertically.

Maintenance Features

Strobe Verification: Built-in strobe for speed accuracy. Cueing Damping: Hydraulic cueing for gentle lowering. Auto Return: Automatic tonearm return at record end (where applicable).

Care & Cleaning

Unplug before cleaning. Use soft, lint-free cloth for dusting. Clean stylus with specialized brush.

CAUTION! Do not use solvents or abrasive cleaners. Keep away from direct sunlight and moisture.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Connection/input selection	Check RCA connections; ensure PHONO input selected; verify ground connection.
Speed fluctuation	Pitch control/stability	Reset pitch control to center; check for obstructions; verify power stability.
Tonearm not tracking	Tracking force/balance	Re-balance tonearm; verify tracking force setting; check anti-skating.
Motor not starting	Power/mechanical	Check power connection; ensure platter rotates freely; inspect belt (if applicable).
Excessive noise	Grounding/stylus	Verify ground connection; clean stylus; check cartridge connections.

Reset: Power cycle unit if electronic issues occur.

Service: Contact authorized Marantz service centers for technical support.