Sony GX20, GX30 User Manual

4-239-872-14(1)

Mini Hi-Fi
Component
System

Operating Instructions

Owner’s Record

The model and serial numbers are located on the rear panel of the unit. Record the serial
number in the space provided below. Refer to them whenever you call upon your Sony
dealer regarding this product.

Model No. Serial No.

MHC-GX40/GX30/GX20
MHC-RG110/RG33/RG22
MHC-RL3

© 2002 Sony Corporation

1

WARNING

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

To prevent fire, do not Cover the ventilation of the
apparatus with news papers, table-cloths, curtains,
etc. And don’t place lighted candles on the apparatus.

To prevent fire or shock hazard, do not place objects
filled with liquids, such as vases, on the apparatus.

Do not install the appliance in a confined space,
such as a bookcase or built-in cabinet.

This appliance is classified as
a CLASS 1 LASER product.
This label is located on the
rear exterior.

Don’t throw away the battery with
general house waste, dispose of it
correctly as chemical waste.

NOTICE FOR THE CUSTOMERS IN THE
U.S.A.

This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the
product’s enclosure that may be of
sufficient magnitude to constitute a
risk of electric shock to persons.

This symbol is intended to alert the
user to the presence of important
operating and maintenance
(servicing) instructions in the
literature accompanying the
appliance.

CAUTION

The use of optical instruments with this product will
increase eye hazard.

WARNING

This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the
interference by one or more of the following
measures:

– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and

receiver.

– Connect the equipment into an outlet on a circuit

different from that to which the receiver is
connected.

– Consult the dealer or an experienced radio/TV

technician for help.

CAUTION

You are cautioned that any changes or modifications
not expressly approved in this manual could void
your authority to operate this equipment.

Note to CATV system installer:

This reminder is provided to call the CATV system
installer’s attention to Article 820-40 of the NEC that
provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be
connected to the grounding system of the building, as
close to the point of cable entry as practical.

NOTICE FOR THE CUSTOMERS IN
CANADA

CAUTION

TO PREVENT ELECTRIC SHOCK, DO NOT USE
THIS POLARIZED AC PLUG WITH AN
EXTENSION CORD, RECEPTACLE OR OTHER
OUTLET UNLESS THE BLADES CAN BE FULLY
INSERTED TO PREVENT BLADE EXPOSURE.

Except for European models

ENERGY STAR

registered mark.
As an

ENERGY STAR

®

is a U.S.

®

Partner,
Sony Corporation has determined
that this product meets the

®

STAR

guidelines for energy

ENERGY

efficiency.

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2

Table of Contents

List of Button Locations
and Reference Pages

Main unit ............................................... 4

Sub woofer ............................................ 5

Remote Control ..................................... 6

Getting Started

Hooking up the system .......................... 7

Inserting two R6 (size AA) batteries

into the remote ................................ 9

Setting the clock .................................. 10

CD

Loading a CD ...................................... 10

Playing a CD — Normal Play/

Shuffle Play/Repeat Play...............11

Programing CD tracks

— Program Play ............................ 12

Tuner

Presetting radio stations....................... 13

Listening to the radio — Preset Tuning/

Manual Tuning .............................. 15

Using the Radio Data System

(RDS)* .......................................... 16

Tape

Loading a tape .....................................16

Playing a tape ...................................... 17

Recording to a tape — CD Synchro

Recording/Recording Manually .... 18

Timer-recording radio programs .........19

Sound Adjustment

Using the sub woofer........................... 20

Adjusting the sound ............................. 20

Selecting the sound effect.................... 20

Selecting the surround effect ............... 20

Display

Turning off the display

— Power Saving Mode ................. 21

Using the CD display .......................... 21

Other Features

Enhancing video game sound

— Game Sync ...............................22

Mixing video game sound with other

sound source — Game Mixing ..... 22

Falling asleep to music

— Sleep Timer .............................. 22

Waking up to music — Daily Timer ... 23

Optional Components

Hooking up video game machine ........ 24

Troubleshooting

Problems and remedies........................ 25

Messages ............................................. 26

Additional Information

Precautions .......................................... 27

Specifications ...................................... 28

* European model only

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3

List of Button Locations and Reference Pages

How to use this page

Use this page to find the location of buttons and other
parts of the system that are mentioned in the text.

Main unit

ALPHABETICAL ORDER

A – E

AUDIO jacks ws (24)
CD wj (11, 12, 18)
CD SYNC 7 (18)
Deck A w; ( 1 6, 17)
Deck B qh (16 – 19)
DISC 1 – 3 0 (11, 12)
DISC SKIP/EX-CHANGE qa (10,

11)
Disc tray 9 (10)
DISPLAY 2 (16, 21)
EFFECT ON/OFF qj (20 )

123 549

G – Z

GAME wf (22, 24)
GAME EQ ql (20, 24)
GAME MIXING 4 (22)
GROOVE 6 (20)
MOVIE EQ 5 (20)
MUSIC EQ 3 (20)
PHONES jack qf
REC PAUSE/START 8 (18)
TAPE A/B wg (16, 18)
TUNER/BAND wh (13 – 15, 18)
VIDEO jack wd (24)
VOLUME control qd

Illustration number

r

TUNER/BAND wh (13 – 15, 18)

Name of button/part Reference page

67

RR

BUTTON DESCRIPTIONS

?/1 (power) 1
Z OPEN/CLOSE qs
Z (deck B) qg
M qk
. qk
> qk
X qk
H qk
x qk
m qk
Z (deck A) wa

8

wj
wh
wg

wf
wd

0
qa

qs

qd

ws

qf

wa
w;

qg
qh

qjqkql

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4

Sub woofer

(MHC-GX40 only)

List of Button Locations and Reference Pages

ALPHABETICAL ORDER

A – Z

Indicator 1 (20)
ON/OFF 2 (20)

1

2

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5

Remote Control

ALPHABETICAL ORDER

A – G

CD ql (11, 12, 18)
CLEAR w; (12)
CLOCK/TIMER SELECT 2

(19, 23)

CLOCK/TIMER SET 3 (10, 19,

23)
DISPLAY 6 (16, 21)
D.SKIP 7 (11)
ENTER qg (10, 12 – 14, 19, 23)
EQ +/– qf (20)
GAME 0 (22, 24)
GROOVE qd (20)

O – Z

ON/OFF qh (20)
PLAY MODE wa (11, 12, 17)
PRESET +/– 5 (13 – 15)
REPEAT 8 (11)
SLEEP 1 (22)
STEREO/MONO 8 (15)
SURROUND qa (20)
TAPE A/B 9 (16, 18)
TUNER MEMORY qj (13, 14)
TUNER/BAND qk (13 – 15, 18)
TUNING +/– 5 (13 – 15)
VOL +/– qs

12 34

wa

w;
ql
qk

qj
qh

BUTTON DESCRIPTIONS

?/1 (power) 4
M 5
. 5
> 5
X 5
N 5
m 5
x 5

5

6
7
8

9
q;
qa
qs

qg

qd

qf

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6

Getting Started

Hooking up the system

Perform the following procedure 1 to 5 to hook up your system using the supplied cords and
accessories.

FM antenna

Getting Started

AM loop antenna

Front speaker (Right)
* MHC-GX40 only

1 Connect the front speakers.

Connect the speaker cords to the SPEAKER
jacks as shown below.

Insert only the stripped portion

R

+

Red/Solid
(3)

Black/Stripe (#)

L

+
–

Sub woofer speaker*

Front speaker (Left)

2 Connect the sub woofer speaker.

(MHC-GX40 only)

Connect the speaker cords to the SUB
WOOFER OUT jack and SUB WOOFER
CONTROL jack as shown below.

SUB WOOFER OUT jack

SUB WOOFER CONTROL jack

continued

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7

Hooking up the system (continued)

3 Connect the FM/AM antennas.

Set up the AM loop antenna, then connect
it.

Jack type A

AM loop antenna

Jack type B

AM loop antenna

Extend the FM lead antenna
horizontally

Extend the FM lead antenna
horizontally

4 For models with a voltage selector, set

VOLTAGE SELECTOR to the local
power line voltage.

Depending on the model, the VOLTAGE
SELECTOR may differ.

*

220V230 - 240V

120V

* Saudi Arabian model: 120 – 127 V

5 Connect the power cord to a wall outlet.

The demonstration appears in the display.

F

M

7

5

When you press ?/1, the system turns on
and the demonstration automatically ends.

If the supplied adapter on the plug does not
fit your wall outlet, detach it from the plug

A

M

(only for models equipped with an adapter).

To connect optional components

See page 24.

To attach the front speaker pads

Attach the supplied front speaker pads to the
bottom of the speakers to stabilize the speakers

F

M

C

O

A

M

and prevent them from slipping.

7

5

A

X

IA

L

Note

Keep the speaker cords away from the antennas to
prevent noise.

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8

Placing the sub woofer (MHC-GX40
only)

Since the human ear cannot detect the direction
and position where the bass sound being
reproduced by a woofer (below 150 Hz) comes
from, you can place the woofer wherever you
like in your room. To obtain a better bass
reproduction, we recommend you to place the
woofer on a solid floor where the resonance is
unlikely to occur.

Notes

• Always place the woofer vertically, keeping a few
centimeters from away the wall.

• If the woofer is placed in the center of a room, the
bass could be extremely weakened. This is due to
the influence of the standing wave of the room. If
this happened, move the woofer away from the
center of a room or eliminate the cause of the
standing wave, by placing a bookshelf on the wall,
etc.

When carrying this system

Perform the following procedure to protect
the CD mechanism.

1 Make sure that all discs are removed

from the system.

2 Press ?/1 to turn off the system.
3 Unplug the power cord.

Inserting two R6 (size AA) batteries into the remote

e

E

E

e

Tip

With normal use, the batteries should last for about
six months. When the remote no longer operates the
system, replace both batteries with new ones.

Note

If you do not use the remote for a long period of time,
remove the batteries to avoid possible damage from
battery leakage.

Getting Started

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9

CD

Setting the clock

1 Press ?/1 to turn on the system.
2 Press CLOCK/TIMER SET on the

remote.

3 Press . or > on the remote

repeatedly to set the hour.

4 Press ENTER on the remote.

The minute indication flashes.

5 Press . or > on the remote

repeatedly to set the minute.

6 Press ENTER on the remote.

The clock starts working.

To adjust the clock

1 Press CLOCK/TIMER SET on the remote.
2 Press . or > on the remote to select

“CLOCK SET”, then press ENTER on the
remote.

3 Do the same procedures as step 3 to 6

above.

Note

The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

Loading a CD

1 Press Z OPEN/CLOSE.

The disc tray opens.

2 Place a CD with the label side up on the

disc tray.

To insert additional discs, press DISC
SKIP/EX-CHANGE to rotate the disc tray.

3 Press Z OPEN/CLOSE to close the disc

tray.

10

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