Denon PMA 350 Service Manual

The Denon PMA 350 is a high-quality integrated amplifier designed for audiophiles. It features a robust power output, multiple input options, and advanced circuitry to ensure superior sound quality. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Operating the Amplifier 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Integrated amplifier, multiple audio inputs, tone control, headphone output, remote control.

Feature	Description
Power Output	High-quality sound with robust power delivery
Input Options	Multiple inputs for various audio sources
Tone Control	Adjustable bass and treble settings
Headphone Output	Dedicated output for private listening
Remote Control	Convenient control from a distance

Installation

Unpack and inspect contents. Place the amplifier on a stable surface.

Connect audio sources: Use RCA cables for input connections.
Connect speakers: Ensure proper polarity when connecting speaker wires.
Plug into AC power.

WARNING! Amplifier can get hot; ensure proper ventilation.

First-Time Setup

Power on the amplifier; follow on-screen prompts if applicable.

Select input source: Use the INPUT button on the remote.
Adjust volume: Use the VOLUME knob or remote control.
Set tone controls: Adjust bass and treble to preference.

CAUTION! Ensure speakers are connected before powering on.

Specifications

Power Output: 70W per channel (8 ohms).
Frequency Response: 5 Hz - 100 kHz.
Total Harmonic Distortion: < 0.01%.
Input Sensitivity: 150 mV (line).
Signal-to-Noise Ratio: 100 dB.
Dimensions: 430 x 350 x 120 mm.
Weight: 8 kg.

Controls and Settings

Access controls via the front panel or remote. Key controls include POWER, INPUT, VOLUME, and TONE.

Remote: POWER, INPUT selection, VOLUME control, MUTE.

Audio settings: Adjust bass, treble, and balance as needed.

Connecting Devices

Connect audio sources using RCA cables. Ensure all connections are secure.

Turn off the amplifier and devices before connecting.
Match cables to ports correctly.
Select input via the INPUT button on the remote.

Tip: Use high-quality cables for optimal sound quality.

Operating the Amplifier

Use the remote or front panel to control playback and settings.

Power on the amplifier.
Select the desired input source.
Adjust volume and tone settings as needed.

WARNING! Avoid excessive volume levels to prevent speaker damage.

Maintenance

Regularly clean the amplifier with a dry cloth. Avoid using liquids.

CAUTION! Ensure the amplifier is unplugged before cleaning.

Regulatory Information

Complies with FCC regulations for residential use. For support, visit www.denon.com or contact customer service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Incorrect input/source	Check input selection and connections.
Distorted sound	Overdriven volume	Reduce volume and check speaker connections.
Remote not working	Batteries	Replace batteries in the remote control.
Amplifier overheating	Poor ventilation	Ensure adequate space around the amplifier.

Reset: Unplug for 10 seconds to reset.

Service: Contact Denon support for further assistance.