Marantz TA-100 Manual

The Marantz TA-100 is a high-performance audio cassette deck featuring advanced Dolby noise reduction systems, three-head configuration for superior recording and playback quality, manual bias and EQ calibration, auto-reverse functionality, metal tape compatibility, and professional-grade transport controls. Designed for audiophiles and recording enthusiasts with precision mechanics and exceptional sound reproduction capabilities. Below are key sections for operation, features, connections, maintenance, and troubleshooting.

Features at a Glance

Key components: Three-head configuration (erase, record, playback), Dolby B/C noise reduction, auto-reverse mechanism, manual bias calibration, metal/normal/CrO2 tape selection, professional transport controls.

Feature	Description
Three-head configuration	Separate record and playback heads for superior sound quality
Dolby B/C NR systems	Advanced noise reduction for improved dynamic range
Auto-reverse mechanism	Automatic tape direction reversal for continuous playback
Manual bias calibration	Precise adjustment for optimal recording with any tape type
Metal tape compatibility	Supports metal, normal, and chromium dioxide tapes
Professional transport	Direct drive motor with quartz-locked speed control
Peak level meters	LED meters with peak hold for accurate level monitoring
Timer functions	Record/playback timer with external control capability
Headphone output	Front panel headphone jack with volume control
Remote control ready	Compatible with Marantz remote control systems

Installation & Setup

Unpack and inspect contents. Place on stable, level surface away from heat sources and magnetic fields.

1. Connect audio outputs: Use RCA cables to connect LINE OUT to amplifier inputs.
2. Connect audio inputs: Use RCA cables to connect LINE IN from source components.
3. Connect power cord: Plug into appropriate AC power outlet.
4. Demagnetize heads: Use head demagnetizer before first use and periodically.
5. Clean transport: Use isopropyl alcohol and cotton swabs to clean heads, capstan, and pinch roller.

WARNING! Keep away from strong magnetic fields. Allow proper ventilation around unit.

Basic Operation

Power on unit; allow 30 seconds for system stabilization.

1. Insert cassette: Press EJECT, insert tape with exposed tape facing forward.
2. Select tape type: Set TAPE SELECTOR to match cassette type (Normal, CrO2, Metal).
3. Noise reduction: Engage Dolby B or C as needed for recording/playback.
4. Transport controls: Use PLAY, STOP, PAUSE, FF, REW, RECORD buttons.
5. Auto-reverse: Enable for continuous playback; disengage for manual control.

CAUTION! Never force cassette into mechanism. Keep fingers clear of transport area.

Specifications

• Frequency Response: 20Hz-21kHz (Metal tape)
• Signal-to-Noise Ratio: 72dB (Dolby C)
• Wow & Flutter: 0.025% WRMS
• Heads: 3 (erase, record, playback separate)
• Motor: DC servo-controlled direct drive
• Tape Speed: 4.76 cm/s ±0.5%
• Inputs: Line x2 (200mV/47kΩ), Mic x1 (0.5mV/10kΩ)
• Outputs: Line x2 (0.5V/2.2kΩ), Headphone (8-600Ω)
• Power Requirements: 120V AC, 60Hz, 25W
• Dimensions: 430 x 125 x 355mm (WxHxD)
• Weight: 7.5kg

Controls and Functions

Front Panel: POWER, EJECT, TRANSPORT controls, TAPE SELECTOR, DOLBY NR, METER MODE, HEADPHONE jack with volume.

Recording Controls: RECORD, PAUSE, INPUT SELECTOR, BIAS ADJUST, REC LEVEL, PEAK HOLD.

Playback Features: AUTO-REVERSE, MEMORY STOP, REPEAT, MPX FILTER, TAPE MONITOR.

Calibration: Manual bias adjustment, recording level calibration, azimuth alignment capability.

Recording Features

Professional-grade recording capabilities with manual calibration.

1. Source selection: Choose LINE or MIC input for recording source.
2. Bias calibration: Use test tone and meters to optimize bias for tape type.
3. Level setting: Adjust REC LEVEL for optimal recording levels (0dB nominal).
4. Dolby calibration: Record with Dolby tone for proper NR alignment.
5. Monitor: Use TAPE/SOURCE switch to compare source and recorded signal.
6. Timer recording: Set external timer for automatic recording start/stop.

Tip: Always use the same tape type for calibration and recording.

Playback Features

High-quality playback with advanced features for critical listening.

1. Auto-reverse: Continuous playback without manual tape flipping.
2. Memory function: Set counter to zero and enable memory for auto-stop.
3. Repeat play: Continuous playback of entire tape or selected section.
4. Dolby decoding: Match NR setting to recording condition.
5. Headphone monitoring: Private listening with independent volume control.
6. Peak meters: Monitor playback levels with peak hold function.

WARNING! Always use proper Dolby settings matching the recording.

Maintenance & Care

Regular maintenance ensures optimal performance and longevity.

1. Head cleaning: Clean heads, capstan, pinch roller every 50 hours of use.
2. Demagnetization: Demagnetize heads monthly with professional demagnetizer.
3. Belt inspection: Check drive belts annually for wear and proper tension.
4. Lubrication: Apply specified lubricants to moving parts as needed.
5. Storage: Store in cool, dry place with power disconnected when not in use.

CAUTION! Unplug unit before cleaning. Use only approved cleaning solutions.

Technical Information

Professional specifications and technical data for service and integration.

• Wow & Flutter: 0.025% WRMS (DIN 45507)
• Fast Wind Time: 90 seconds for C-60 cassette
• Input Sensitivity: Line: 200mV, Mic: 0.5mV
• Output Level: Line: 0.5V (0dB), Headphone: 30mW (8Ω)
• Separation: 40dB at 1kHz
• Crosstalk: 60dB at 1kHz
• Total Harmonic Distortion: 1.5% at 0dB
• Bias Frequency: 105kHz
• MPX Filter: 19kHz notch filter for FM recording

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound output	Connections/monitor	Check audio cables; verify tape monitor position; test headphones
Poor recording quality	Bias/head condition	Recalibrate bias; clean and demagnetize heads; check tape type
Tape won't play	Transport/belts	Check for obstruction; inspect drive belts; verify cassette orientation
Speed variation	Motor/belt wear	Clean capstan/pinch roller; check belt tension; service motor
Auto-reverse not working	Sensor/mechanism	Clean optical sensors; check reverse mechanism; reset unit
High noise level	Dolby/tape quality	Verify Dolby settings; use quality tape; check head azimuth

Reset: Disconnect power for 30 seconds to reset microprocessor.

Service: Contact authorized Marantz service center for technical support.