Contents

Table of Contents
- Getting Started
- Step 1: Hooking up the system
- Step 2: Setting up your speakers
- Step 3: Setting the time
- Step 4: Presetting radio stations
- Saving the power in standby mode
- Basic Operations
- Playing a CD
- Recording a CD
- Listening to the radio
- Recording from the radio
- Playing a tape
- Recording from a tape
- The CD Player
- Using the CD display
- Playing the CD tracks repeatedly
- Playing the CD tracks in random order
- Programming the CD tracks
- Playing CDs without interruption
- The Tape Deck
- Recording on a tape manually
- Recording a CD by specifying track order
- DJ Effects
- Looping part of a CD
- Flashing part of a CD
- Sound Adjustment
- Adjusting the sound
- Selecting the audio emphasis
- Changing the spectrum analyzer display
- Selecting surround effects
- Enjoying Dolby Pro Logic Surround sound
- Adjusting the graphic equalizer
- Making a personal audio emphasis file
- Other Features
- Using the Radio Data System (RDS)
- Singing along: Karaoke
- Falling asleep to music
- Waking up to music
- Timer-recording radio programs
- Optional components
- Connecting audio components
- Connecting a VCR
- Connecting a DVD player
- Connecting external antennas
- Additional Information
- Precautions
- Troubleshooting
- Specifications
- Index

Sony MHC-GRX90AV Operating Instructions

Pages 60

Year 1999

Language(s)

of 60

Sony MHC-GRX90AV Specification

The Sony MHC-GRX90AV is a versatile mini hi-fi component system designed to deliver powerful audio performance and extensive media compatibility. It features a three-disc CD changer capable of playing standard audio CDs, CD-Rs, and CD-RWs, allowing for uninterrupted music playback. The system includes dual cassette decks, enabling users to play and record audio tapes, a feature that appeals to those who appreciate analog media. Its tuner supports AM/FM bands with 30 presets, providing easy access to favorite radio stations. The MHC-GRX90AV boasts an impressive total power output, driven by its integrated amplifier, which ensures robust sound quality with clear highs and deep bass, making it suitable for both casual listening and parties. The speaker system is equipped with high-performance woofers and tweeters, designed to deliver a balanced and powerful audio output across various genres. Sony's proprietary sound enhancement technologies, such as Mega Bass and Groove, further enhance the listening experience by boosting low-frequency response and overall audio impact. The system includes multiple connectivity options, such as auxiliary inputs for external devices, allowing users to connect smartphones, MP3 players, or other audio sources seamlessly. The design of the MHC-GRX90AV is both functional and stylish, with an intuitive control panel and remote control for easy operation. A digital display provides clear feedback on settings and track information. This audio system is a fusion of traditional and modern audio features, catering to diverse user needs with its blend of powerful sound, media flexibility, and user-friendly design.

Sony MHC-GRX90AV F.A.Q.

How do I reset the Sony MHC-GRX90AV to factory settings?

To reset the Sony MHC-GRX90AV to factory settings, turn off the system and unplug it from the power source for a few minutes. Then, plug it back in and hold down the "STOP" button on the main unit until "RESET" appears on the display.

What should I do if there is no sound coming from the speakers?

Ensure that the audio cables are properly connected to the system and the speakers. Check the volume level on the unit and make sure it's not muted. Also, verify that the correct audio source is selected.

How can I clean the CD player lens on the Sony MHC-GRX90AV?

To clean the CD player lens, use a CD lens cleaning disc available at electronics stores. Follow the instructions provided with the cleaning disc to safely clean the lens.

What is the best way to maintain the cassette deck functionality?

Regularly clean the heads and pinch rollers with a cotton swab lightly moistened with isopropyl alcohol. Avoid using excessive force and ensure tapes are stored properly to prevent damage.

How do I connect external devices to the Sony MHC-GRX90AV?

Use the auxiliary input jacks located on the back of the unit to connect external devices. Select the appropriate input source using the function button on the unit or remote control.

Why does the system display "PROTECT" and shut down?

The "PROTECT" message indicates an issue with the speaker connections or an internal fault. Check that the speaker wires are not short-circuited and are properly connected. If the problem persists, consult a qualified technician.

What should I do if the remote control is not functioning?

First, replace the batteries in the remote control. Ensure there are no obstructions between the remote and the unit. If the issue persists, try resetting the remote by removing the batteries, pressing all the buttons, and reinstalling the batteries.

How can I improve FM radio reception on the Sony MHC-GRX90AV?

Ensure the FM antenna is fully extended and positioned for the best reception. If necessary, reposition the antenna or use an external FM antenna for better signal strength.

What is the correct way to set the clock on the Sony MHC-GRX90AV?

Press the "CLOCK/TIMER" button until the clock display flashes. Use the "TUNING +/-" buttons to set the hour and press "ENTER" to confirm. Repeat for the minutes and confirm again.

How do I troubleshoot if the display is not working?

Check if the unit is properly connected to a power source. If the display is still not working, try resetting the unit by unplugging it for a few minutes. If the issue continues, professional service may be required.