Sony XR-C900RDS Car Stereo Manual

The Sony XR-C900RDS is a high-performance car stereo featuring a detachable front panel, CD/MP3/WMA playback, AM/FM tuner with 30 presets, 4x50W max power output, 3-band parametric EQ, Bass Boost, Loudness, and preamp outputs for external amplifiers. It includes a wireless remote control, security code protection, and compatibility with various audio sources. 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. Playing Media 8. Security Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable front panel, Wireless Remote Control, ISO connector harness, mounting sleeve, and user manual.

Feature	Description
Detachable Front Panel	For theft prevention; removable faceplate
CD/MP3/WMA Playback	Plays audio CDs, MP3, and WMA files from CD-R/RW
AM/FM Tuner	30 station presets (18 FM, 12 AM)
Power Output	4 x 50W max (4 x 22W RMS)
EQ & Sound Controls	3-band parametric EQ, Bass Boost, Loudness
Preamp Outputs	Front & rear RCA outputs for external amplifiers
Security Code	Anti-theft protection with user-set code
Wireless Remote	Included for convenient control
Illumination	Green button illumination matches dash lighting
Audio Input	AUX input for external audio sources

Installation

Unpack and inspect contents. Ensure vehicle is parked with ignition off.

Disconnect vehicle battery: Remove negative terminal to prevent short circuits.
Prepare wiring: Connect ISO harness to vehicle wiring using crimp connectors or solder.
Mount sleeve: Insert into dashboard opening; secure with bent tabs.
Connect antenna: Plug vehicle antenna cable into rear of unit.
Connect speakers: Ensure correct polarity (+/-) for each channel.
Insert unit: Slide into mounting sleeve until it clicks into place.
Reconnect battery: Restore power to test unit.

WARNING! Incorrect wiring can damage the unit or vehicle electrical system. Follow wiring diagram precisely.

First-Time Setup

Power on unit; follow prompts for initial configuration.

Set security code: Enter a 4-digit code via buttons; store in safe place.
Tuner setup: Auto-scan for stations; store favorites in presets.
Sound adjustment: Configure EQ, Bass, Loudness to preference.
Clock setting: Set time via CLOCK button and numeric keys.
Detach faceplate: Practice removal for security when leaving vehicle.

CAUTION! Do not forget security code; unit will be locked without it.

Specifications

Power Supply: 12V DC, negative ground.
Output Power: 50W x 4 max (22W x 4 RMS).
Tuner: FM/AM with 30 presets.
Frequency Response: 20Hz - 20kHz.
Signal-to-Noise Ratio: >90dB.
Supported Media: CD, CD-R/RW, MP3, WMA.
Preamp Outputs: Front & rear (2V).
Dimensions: DIN size (178mm x 50mm x 160mm).
Operating Temp: -10°C to +60°C.

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE, BAND, DISC LOAD/EJECT, MENU, numeric buttons.

Remote: POWER, VOLUME, SOURCE, TRACK UP/DOWN, PRESET UP/DOWN, MUTE, MENU.

Audio Settings: BASS, MID, TREBLE (adjustable via EQ menu), Bass Boost (0-10), Loudness (On/Off). Tuner: Manual/auto seek, preset memory. CD/MP3: Repeat (1/All), Random, Scan, Intro. Display: Dimmer (On/Off), Clock display. Security: Code entry, reset procedure.

Connecting Devices

External Amplifier: Use RCA preamp outputs. AUX Input: 3.5mm jack for portable players.

Turn off unit and disconnect battery before making connections.
Connect RCA cables from preamp outputs to amplifier inputs.
Plug AUX cable into front/rear input (if available).
Select source via SOURCE button (TUNER, CD, AUX).

Tip: Use shielded cables for preamp connections to reduce noise.

Playing Media

Supports audio CDs, MP3/WMA files on CD-R/RW.

Insert disc: Press EJECT, load CD label-side up.
Play: Press SOURCE to select CD; playback starts automatically.
Track navigation: Use >>| and |<< for next/previous; numeric keys for direct track access.
MP3 folder navigation: Use >>| and |<< to skip folders.
Repeat/Random: Press RPT or RDM during playback.
Scan: Press SCAN to sample each track for 10 seconds.
Eject: Press EJECT to remove disc.

WARNING! Do not use damaged or irregular-shaped discs. Avoid extreme temperatures.

Security Features

Security Code: Set via menu; unit locks if power disconnected without code entry. Detachable Faceplate: Remove when leaving vehicle to deter theft.

Care & Cleaning

Disconnect battery before cleaning. Use soft, dry cloth for faceplate and unit. For stubborn dirt, dampen cloth slightly with water.

CAUTION! Do not use solvents or abrasive cleaners. Keep liquids away from unit.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. ICES-003: Complies with Canadian EMI regulations. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit does not power on	Power/ground connection	Check battery connection; verify fuse; ensure ground wire secure.
No sound from speakers	Wiring/settings	Check speaker connections; verify volume not muted; test each channel.
CD will not play	Disc/format issue	Ensure disc is clean, not scratched; verify MP3/WMA format compatibility.
Poor radio reception	Antenna connection	Check antenna cable connection; ensure antenna is fully extended.
Unit requests code	Power interruption	Enter 4-digit security code; if forgotten, contact Sony support.

Reset: Disconnect battery for 10 minutes to reset unit (will require code entry).

Service: 1-800-222-7669; www.sony.com/electronics/support