Page 1
4-235-103-13(2)
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-RG4SR
MHC-RG30T
MHC-RG20/DX10
MHC-RG11
© 2001 Sony Corporation
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WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
To avoid electrical shock, do not open the cabinet.
Refer servicing to qualified personnel only.
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.
INFORMATION
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
For the customers in North America
ENERGY STAR
®
is a U.S.
registered mark.
As an ENERGY STAR® Partner,
Sony Corporation has determined
that this product meets the ENERGY
®
STAR
guidelines for energy
efficiency.
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Table of Contents
Parts Identification
Main unit ............................................... 4
Remote Control ..................................... 5
Getting Started
Hooking up the system .......................... 6
Inserting two R6 (size AA) batteries
into the remote ................................ 8
Setting the time......................................9
Saving the power in standby mode........ 9
CD
Loading a CD ...................................... 10
Playing a CD
— Normal Play/Shuffle Play/
Repeat Play ................................... 10
Programing CD tracks
— Program Play ............................ 11
Using the CD display .......................... 12
Tuner
Presetting radio stations....................... 12
Listening to the radio
— Preset Tuning ........................... 13
Sound Adjustment
Adjusting the sound ............................. 17
Selecting the sound effect.................... 17
Selecting the surround effect ............... 17
Other Features
Enhancing video game sound
— Game Sync ...............................18
Falling asleep to music
— Sleep Timer .............................. 18
Waking up to music
— Daily Timer .............................. 18
Optional Components
Connecting a video game machine...... 19
Additional Information
Precautions .......................................... 20
Troubleshooting................................... 22
Messages ............................................. 24
Specifications ...................................... 24
Tape
Loading a tape ..................................... 14
Playing a tape ...................................... 14
Recording to a tape
— CD Synchro Recording/
Recording Manually...................... 15
Timer-recording radio programs .........16
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Parts Identification
The items are arranged in alphabetical order. Refer to the pages indicated in parentheses for details.
Main unit
12
wk
wj
wh
wg
wf
wd
ws
AUDIO jacks wd (19)
CD wk (10 – 12, 15)
CD SYNC qh (15)
Deck A ws (14)
Deck B qs (14 – 16)
DISC 1 – 3 4 (10, 11)
DISC SKIP EX-CHANGE 3
(10, 11)
Disc tray 5 (10)
DISPLAY w; (12)
EFFECT ON/OFF qd
(17)
GAME wg (18 – 20)
3456 7
qdqfqgqhqjqkqlw;wa
GAME EQ ql (17, 18, 20)
GROOVE 8 (17)
MOVIE EQ 7 (17)
MUSIC EQ 2 (17)
PHONES jack 0
REC PAUSE/START qg (15)
TAPE A/B wh (14, 15)
TUNER/BAND wj (12, 13, 15)
VIDEO jack wf (19, 20)
VOLUME control 9
BUTTON DESCRIPTIONS
?/1 (power) 1
Z OPEN/CLOSE 6
Z (deck B) qa
M (fast forward) qf
. (go back) qj
> (go forward) qj
X (pause) qj
H (play) qj
x (stop) qj
m (rewind) qk
Z (deck A) wa
8
9
0
qa
qs
4
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Remote Control
wa
w;
ql
qk
qj
qh
qg
Parts Identification
12 3 4
5
6
7
8
9
q;
qa
qs
qd
qf
CD ql (10 – 12, 15)
CLEAR w; (11)
CLOCK/TIMER SELECT 2
(16, 19)
CLOCK/TIMER SET 3 (9, 16,
18)
DISPLAY 6 (12)
D.SKIP 7 (10)
ENTER qg (9, 11 – 13, 16, 18,
19)
EQ +/– qf (17)
GAME 0 (18 – 20)
GROOVE qd (17)
ON/OFF qh (17)
PLAY MODE wa (10, 11)
PRESET +/– 5 (13)
REPEAT 8 (11)
SLEEP 1 (18)
STEREO/MONO 8 (13)
SURROUND qa (17)
TAPE A/B 9 (14, 15)
TUNER MEMORY qj (12, 13)
TUNER/BAND qk (12, 13)
TUNING +/– 5 (12, 13)
VOL +/– qs
BUTTON DESCRIPTIONS
?/1 (power) 4
M (fast forward) 5
. (go back) 5
> (go forward) 5
X (pause) 5
N (play) 5
m (rewind) 5
x (stop) 5
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Getting Started
Hooking up the system
Perform the following procedure 1 to 5 to hook up your system using the supplied cords and
accessories.
Surround speaker (Right)*
FM antenna
2
1
Front speaker (Right)
* MHC-RG4SR only
1 Connect the front speakers.
Connect the speaker cords to the SPEAKER
jacks as shown below.
Insert only the stripped portion
R
L
+
–
Red/Solid
(3)
+
Black/Stripe (#)
AM loop antenna
3
Surround speaker (Left)*
4
5
Front speaker (Left)
2 Connect the surround speakers.
(MHC-RG4SR only)
Connect the speaker cords to the
SURROUND SPK OUT PUT jacks as
shown below.
Insert only the stripped portion
R
+
Red/Solid
(3)
Black/Stripe (#)
L
+
–
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3 Connect the FM/AM antennas.
Set up the AM loop antenna, then connect
it.
Jack type A
AM loop antenna
Extend the FM lead antenna
horizontally
5 Connect the power cord to a wall outlet.
The demonstration appears in the display.
When you press ?/1, the system turns on
and the demonstration automatically ends.
If the supplied adapter on the plug does not
Getting Started
fit your wall outlet, detach it from the plug
(only for models equipped with an adapter).
To connect optional components
See page 19.
F
To attach the front speaker pads
M
7
5
Attach the supplied front speaker pads to the
bottom of the speakers to stabilize the speakers
A
and prevent them from slipping.
M
Jack type B
AM loop antenna
Extend the FM lead antenna
horizontally
FM75
COAXIAL
AM
4 For models with a voltage selector, set
VOLTAGE SELECTOR to the local
power line voltage.
120V220V230 - 240V
Notes
• Keep the speaker cords away from the antennas to
prevent noise.
• Do not place the surround speakers on top of a TV.
This may cause distortion of the colors in the TV
screen.
• Be sure to connect both left and right surround
speakers. Otherwise, the sound will not be heard.
continued
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Hooking up the system (continued)
Inserting two R6 (size AA)
Positioning the speakers (MHCRG4SR only)
1 Place the front speakers at an angle of
45 degrees from your listening
position.
Front
speaker
(L)
Surround
speaker
(L)
45º
Front
speaker
(R)
Surround
speaker
(R)
2 Place the surround speakers facing
each other at about 60 to 90 cm above
your listening position.
Surround
speaker
60 to 90 cm
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.
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.
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Setting the time
Saving the power in
1 Press ?/1 to turn on the system.
2 Press CLOCK/TIMER SET on the
remote.
Proceed to step 5 when “CLOCK” appears
in the display.
3 Press . or > repeatedly to select
“SET CLOCK”.
4 Press ENTER on the remote.
5 Press . or > repeatedly to set the
hour.
6 Press ENTER on the remote.
The minute indication flashes.
7 Press . or > repeatedly to set the
minute.
8 Press ENTER on the remote.
Tip
If you made a mistake or want to change the time,
start over from step 2.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
standby mode
Press DISPLAY repeatedly when the
system is off. Each time you press the
button, the system switches cyclically as
follows:
Demonstration t Clock display t Power
Saving Mode
Tips
• ?/1 indicator lights up even in the Power Saving
Mode.
• The timer works even in the Power Saving Mode.
Note
You cannot set the time in the Power Saving Mode.
To cancel the Power Saving Mode
Press DISPLAY once to show the
demonstration or twice to show the clock
display.
Getting Started
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CD
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.
When you play a CD
single (8 cm CD),
place it on the inner
circle of the 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.
1 Press CD.
2 Press PLAY MODE on the remote
repeatedly until the mode you want
appears in the display.
Select To play
ALL DISCS
(Normal Play)
1DISC
(Normal Play)
ALL DISCS
SHUF
(Shuffle Play)
1DISC SHUF
(Shuffle Play)
PGM (Program
Play)
All CDs in the disc tray
continuously.
The CD you have selected
in original order.
The tracks on all CDs in
random order.
The tracks on the CD you
have selected in random
order.
The tracks on all CDs in the
order you want them to be
played (see “Programing
CD tracks” on page 11).
Playing a CD
— Normal Play/Shuffle Play/Repeat Play
This system lets you play the CD in different
play modes.
Disc tray number
Disc presence
indicator
Track
number
Playing time
3 Press H (or N on the remote).
Other Operations
To Do this
Stop play Press x.
Pause Press X. Press again to resume
Select a track During play or pause, press >
Find a point
in a track
Select a CD in
stop mode
play.
(to go forward) or . (to go
back).
During play, press and hold M
(to go forward) or m (to go
back). Release it when you find the
desired point.
Press DISC 1 – 3 or DISC SKIP
EX-CHANGE (or D.SKIP on the
remote).
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To Do this
Switch to CD
function from
another source
Remove a CD Press Z OPEN/CLOSE.
Exchange other
CDs while
playing
Play repeatedly
(Repeat Play)
* You cannot select “REP” and “ALL DISCS
SHUF” at the same time.
**When you select “REP 1”, that track is repeated
endlessly until “REP 1” is canceled.
Note
The play mode cannot be changed while playing a
disc. To change the play mode, press x first to stop
play.
Press DISC 1 – 3 (Automatic
Source Selection). However, if a
CD is used in a program, play does
not start even if you press CD 1 –
3.
Press DISC SKIP EX-CHANGE.
Press REPEAT on the remote
during play until “REP” or “REP
1” appears.
REP*: For all the tracks on the CD
up to five times.
REP 1**: For a single track only.
To cancel playing repeatedly, press
REPEAT until “REP” or “REP 1”
disappears.
3 Press one of DISC 1 – 3 to select a CD.
To program all the tracks on a CD at once,
proceed to step 5 with “AL” displayed.
4 Press . or > until the desired
track appears in the display.
Disc tray number
Total playing time
(including selected track)
Track number
5 Press ENTER on the remote.
The track is programed. The program step
number appears, followed by the total
playing time.
6 Program additional discs or tracks.
To program Repeat steps
Other discs 3 and 5
Other tracks on the
same disc
Other tracks on other
discs
4 and 5
3 to 5
CD
Programing CD tracks
— Program Play
You can make a program of up to 32 tracks
from all the CDs in the order you want to play
them.
1 Press CD, then place a CD.
2 Press PLAY MODE on the remote
repeatedly until “PGM” appears in the
display.
7 Press H (or N on the remote).
Other Operations
To Do this
Cancel Program
Play
Clear a track from
the end
Clear the entire
program
Press PLAY MODE on the
remote repeatedly until “PGM”
and “SHUF” disappear.
Press CLEAR on the remote in
stop mode.
Press x once in stop mode or
twice during play.
continued
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Programing CD tracks (continued)
Tips
• The program you made remains after Program Play
finishes. To play the same program again, press CD,
then press H (or N on the remote).
• “--.--” appears when the total CD program time
exceeds 100 minutes, or when you select a CD track
whose number is 21 or over.
Using the CD display
You can check the remaining time of the
current track or the entire CD.
Press DISPLAY repeatedly.
During normal play
Playing time of the current track t Remaining
time of the current track t Remaining time of
current CD t Clock display (for eight
seconds) t Effect status
In stop mode
During Program Play mode when there is a
program:
The last track number of the program and the
total playing time t Total number of
programed tracks (for eight seconds) t Clock
display (for eight seconds) t Effect status
Tuner
Presetting radio stations
You can preset up to 20 stations for FM and 10
stations for AM.
1 Press TUNER/BAND repeatedly to
select “FM” or “AM”.
2 Press and hold m or M (or TUNING –
or + on the remote) until the frequency
indication starts to change, then
release it.
Scanning stops automatically when the
system tunes in a station.
3 Press TUNER MEMORY on the remote.
A preset number appears in the display.
The stations are stored from preset number
1.
Preset number
4 Press ENTER on the remote.
“COMPLETE” appears.
The station is stored.
5 Repeat steps 1 to 4 to store other
stations.
To tune in a station with a weak
signal
Press m or M (or TUNING – or + on the
remote) repeatedly in step 2 to tune in the
station manually.
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To set another station to an existing
preset number
Start over from step 1. After step 3, press .
or > (or PRESET – or + on the remote)
repeatedly to select the preset number you want
to store the other station.
You can preset a new station in the selected
preset number.
To erase a preset station
1 Press and hold TUNER MEMORY on the
remote until a preset number appears in
the display.
2 Press . or > (or PRESET – or + on
the remote) repeatedly to select the preset
number you want to erase.
Select “ALL ERASE” when you want to
erase all the preset stations.
3 Press ENTER on the remote.
“COMPLETE” appears.
When you erase a preset number, the preset
number decreases by one and all preset
numbers following the erased one are
renumbered.
To change the AM tuning interval
(except for the European and Middle
Eastern models)
The AM tuning interval is factory-set to 9 kHz
(10 kHz in some areas). To change the AM
tuning interval, tune in any AM station first,
then turn off the system. While holding down
TUNER/BAND, turn the system back on.
When you change the interval, all the AM
preset stations are erased. To reset the interval,
repeat the same procedure.
Tip
The preset stations are retained for half a day even if
you unplug the power cord or if a power failure
occurs.
Listening to the radio
— Preset Tuning
Preset radio stations in the tuner’s memory first
(see “Presetting radio stations” on page 12).
1 Press TUNER/BAND repeatedly to
select “FM” or “AM”.
2 Press . or > (or PRESET – or + on
the remote) repeatedly to tune in the
desired preset station.
Preset number Frequency*
* When only one station is preset, “ONE
PRESET” appears in the display.
To listen to non-preset radio stations
Use manual or automatic tuning in step 2.
For manual tuning, press m or M (or
TUNING – or + on the remote) repeatedly. For
automatic tuning, press and hold m or M
(or TUNING – or + on the remote).
Tips
• When an FM stereo program has static noise, press
STEREO/MONO repeatedly until “MONO”
appears. There will be no stereo effect, but the
reception will improve.
• To improve broadcast reception, adjust the supplied
antennas.
CD/Tuner
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Tape
Loading a tape
1 Press TAPE A/B repeatedly to select
deck A or B.
2 Press Z.
3 Insert a tape in deck A or B with the
side you want to play/record facing
forward.
With the side
you want to
play/record
facing forward.
Playing a tape
You can use TYPE I (normal) tape.
1 Load a tape.
To play both decks in succession, press
PLAY MODE on the remote repeatedly
until “RELAY” (Relay Play)* appears in
the display.
2 Press H (or N on the remote).
The tape starts playing.
To Do this
Stop play Press x.
Pause Press X. Press again to
Fast-forward
or rewind
Remove
the cassette
Searching for the beginning of the
current or the next track (AMS)*
To go forward
Press > during playback.
“TAPE A (or TAPE B) >> +1” appears.
To go back
Press . during playback.
“TAPE A (or TAPE B) << –1” appears.
* AMS (Automatic Music Sensor)
Note
The AMS function may not operate correctly under
the following circumstances:
– When the unrecorded space between songs is less
than 4 seconds long.
– When the system is placed near a television.
resume play.
Press m or M.
Press Z.
14
* After the playback of the front side of deck A,
deck B plays the front side, then stops.
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Recording to a tape
— CD Synchro Recording/Recording Manually
You can record from a CD, tape or radio. You can use TYPE I (normal) tapes. The recording level is
adjusted automatically.
Steps Recording from a CD
(CD Synchro Recording)
Recording from a CD/tape/radio manually
1 Load a recordable tape into deck B.
2 Press CD.
3 Load the CD you want to record.
Press CD, TAPE A/B or TUNER/BAND.
Load the CD or tape, or tune in the
station you want to record.
4 Press CD SYNC. Press REC PAUSE/START.
Deck B stands by for recording.
“REC” flashes.
5 Press REC PAUSE/START.
Recording starts.
To stop recording
Press x.
Tip
For recording from the radio:
If noise is heard while recording from the radio, move
the respective antenna to reduce the noise.
Press REC PAUSE/START, and then start
playing the desired source.
Note
You cannot listen to other sources while recording.
Tape
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Timer-recording radio programs
You can record a preset radio station from a
specified time.
To timer-record, you must first preset the radio
station (see “Presetting radio stations” on page
12) and set the clock (see “Setting the time” on
page 9).
1 Tune in the preset radio station (see
“Listening to the radio” on page 13).
2 Press CLOCK/TIMER SET on the
remote.
“SET DAILY” appears.
3 Press . or > repeatedly to select
“SET REC”, then press ENTER on the
remote.
“ON” appears and the hour indication
flashes in the display.
4 Set the time to start recording.
Press . or > repeatedly to set the
hour, then press ENTER on the remote.
The minute indication starts flashing.
Press . or > repeatedly to set the
minute, then press ENTER on the remote.
5 Repeat step 4 to set the time to stop
recording.
The start time appears, followed by the stop
time, the preset radio station to be recorded
(e.g., “TUNER FM 5”), then the original
display appears.
6 Load a recordable tape into deck B.
7 Press ?/1 to turn off the system.
When the recording starts, the volume level
is set to minimum.
To Do this
Check the
setting
Cancel the
timer
Notes
• If the system is on at the preset time, the recording
will not be made.
• When you use the Sleep Timer, Daily Timer and
Timer-recording will not turn on the system until
the Sleep Timer turns it off.
Press CLOCK/TIMER SELECT
on the remote and press . or
> repeatedly to select “SEL
REC”. Then, press ENTER on the
remote. To change the setting, start
over from step 1.
Press CLOCK/TIMER SELECT
on the remote and press . or
> repeatedly to select “TIMER
OFF”, then press ENTER on the
remote.
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Sound Adjustment
Adjusting the sound
You can reinforce the bass and create a more
powerful sound.
Press GROOVE.
“GROOVE” appears in the display and the
volume switches to power mode.
Press again to cancel GROOVE.
Selecting the sound effect
To cancel the effect
Press EFFECT ON/OFF (or ON/OFF on the
remote).
Sound effect options
“SURR” appears if you select an effect with
surround effects.
MUSIC EQ
Effect
ROCK
POP
Standard music sources
Selecting the effect from the music
menu
Press MUSIC EQ, MOVIE EQ or GAME EQ
(or EQ +/–* on the remote) repeatedly to
select the preset you desire.
The preset name appears in the display.
See the chart “Sound effect options”.
* You can select all of the effects in order.
MOVIE EQ
Effect
MOVIE Soundtracks and special listening
situations
GAME EQ
Effect
GAME PlayStation 1, 2 and other video
game music sources
Selecting the surround effect
Press SURROUND on the remote.
“SURR” appears in the display.
Press again to cancel SURROUND.
Tape/Sound Adjustment
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Other Features
Enhancing video game sound
— Game Sync
You need to connect a video game machine
(see “Connecting a video game machine” on
page 19).
Press GAME.
Tips
• In the standby mode, the system automatically turns
on.
• The GAME EQ is automatically selected.
• These operations cannot be performed in the Power
Saving Mode.
Falling asleep to music
— Sleep Timer
You can set the system to turn off after a
certain time, so that you can fall asleep to
music.
Press SLEEP on the remote.
Each time you press the button, the minute
display (the turn-off time) changes cyclically as
follows:
AUTO* t 90 MIN t 80 MIN t 70 MIN
t … t 10 MIN t OFF
* The system turns off when the current CD or tape
finishes playback (for up to 100 minutes).
Other Operations
To Press
Check the
remaining time
Change the
time to turn off
Cancel the Sleep
Timer function
SLEEP on the remote once.
SLEEP on the remote
repeatedly to select the time you
want.
SLEEP on the remote
repeatedly until “SLEEP OFF”
appears.
Waking up to music
— Daily Timer
You can wake up to music at a preset time.
Make sure you have set the clock (see “Setting
the time” on page 9).
1 Prepare the music source you want to
play.
• CD: Load a CD. To start from a
specific track, make a program (see
“Programing CD tracks” on page 11).
• Tape: Load a tape with the side you
want to play facing forward.
• Radio: Tune in the preset station you
want (see “Listening to the radio” on
page 13).
2 Adjust the volume.
3 Press CLOCK/TIMER SET on the
remote.
“SET DAILY” appears.
4 Press ENTER on the remote.
“ON” appears and the hour indication
flashes.
5 Set the time to start playing.
Press . or > repeatedly to set the
hour, then press ENTER on the remote.
The minute indication flashes.
Press . or > repeatedly to set the
minute, then press ENTER on the remote.
6 Repeat step 5 to set the time to stop
playing.
7 Press . or > repeatedly until the
music source you want appears.
The indication changes as follows:
t
TUNER y CD PLAY
t
TAPE PLAY
T
T
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8 Press ENTER on the remote.
The type of timer (“DAILY”), followed by
the start time, stop time, and the music
source, appear, then the original display
appears.
9 Press ?/1 to turn off the system.
Other Operations
To Do this
Check the setting Press CLOCK/TIMER
SELECT on the remote and
press . or > repeatedly
to select “SEL DAILY”, then
press ENTER on the remote.
Change the setting Start over from step 1.
Cancel the timer Press CLOCK/TIMER
SELECT on the remote and
press . or > repeatedly
to select “TIMER OFF”, then
press ENTER on the remote.
Tip
The system turns on 15 seconds before the preset
time.
Notes
• When you use the Sleep Timer, the Daily Timer
will not turn on the system until the Sleep Timer
turns it off.
• You cannot activate the Daily Timer and Timer-
recording at the same time.
Optional Components
Connecting a video game machine
Connect the video output of the video game
machine to the VIDEO jack, and the audio
output to the AUDIO jacks on the front panel
of the system. Connect the VIDEO OUT jack
on the rear panel of the system to the video
input of a TV using the optional video cable.
To listen to the sound of the connected video
game machine, press GAME.
To the video output of the video game machine
Other Features/Optional Components
To the audio output of the video game machine
continued
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Connecting a video game machine
(continued)
To the video input of a TV
Notes
• The video game machine image may appear on the
TV screen even if the system is turned off.
• See “Selecting the sound effect” on page 17 for
video game sound effects.
• If you press GAME while the system is off, the
system turns on, the function switches to GAME,
and the equalizer also switches to the GAME EQ.
• If you press GAME while the system is on, the
function switches to GAME and the equalizer
automatically switches to the GAME EQ in the
same manner.
Additional Information
Precautions
On operating voltage
Before operating the system, check that the operating
voltage of your system is identical with the voltage of
your local power supply.
On safety
• The unit is not disconnected from the AC power
source (mains) as long as it is connected to the wall
outlet, even if the unit itself has been turned off.
• Unplug the system from the wall outlet (mains) if it
is not to be used for an extended period of time. To
disconnect the cord (mains lead), pull it out by the
plug. Never pull the cord itself.
• Should any solid object or liquid fall into the
component, unplug the system and have it checked
by qualified personnel before operating it any
further.
• The AC power cord must be changed only at a
qualified service shop.
On placement
• Place the system in a location with adequate
ventilation to prevent heat build up.
• Do not place the system in an inclined position.
• Do not place the system in locations where it is:
— Extremely hot or cold
— Dusty or dirty
— Very humid
— Subject to vibrations
— Subject to direct sunlight.
• Use caution when placing the unit or speakers on
surfaces that have been specially treated (with wax,
oil, polish, etc.) as staining or discoloration of the
surface may result.
On heat build up
• Although the system heats up during operation, this
is not a malfunction.
• Place the system in a location with adequate
ventilation to prevent heat build-up in the system.
• If you continuously use this system at a large
volume, the cabinet temperature of the top, side and
bottom rises considerably. To avoid burning
yourself, do not touch the cabinet.
• To prevent a malfunction, do not cover the
ventilation hole for the cooling fan.
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On operation
• If the system is brought directly from a cold to a
warm location, or is placed in a very damp room,
moisture may condense on the lens inside the CD
player. Should this occur, the system will not
operate properly. Remove the CD and leave the
system turned on for about an hour until the
moisture evaporates.
• When you move the system, take out any discs.
If you have any questions or problems concerning
your stereo system, please consult your nearest Sony
dealer.
Notes on CDs
• Before playing, clean the CD with a cleaning cloth.
Wipe the CD from the center out.
• Do not use solvents.
• Do not expose the CD to direct sunlight or heat
sources.
Note on CD-R playback
Discs recorded on CD-R drives may not be played
back because of scratches, dirt, recording condition or
the drive’s characteristics. Besides, the discs, which
are not yet finalized at the end of recording, cannot be
played back.
Cleaning the cabinet
Use a soft cloth slightly moistened with mild
detergent solution.
To save a tape permanently
To prevent a tape from being accidentally recorded
over, break off the cassette tab from side A or B as
illustrated. If you later want to reuse the tape for
recording, cover the broken tab with adhesive tape.
Before placing a cassette in the tape
deck
Take up any slack in the tape. Otherwise the tape may
get entangled in the parts of the tape deck and become
damaged.
When using a tape longer than 90
minutes
The tape is very elastic. Do not change the tape
operations such as play, stop, and fast-winding
frequently. The tape may get entangled in the tape
deck.
Cleaning the tape heads
Clean the tape heads after every 10 hours of use.
Be sure to clean the tape heads before you start an
important recording or after playing an old tape. Use
a separately sold dry-type or wet-type cleaning
cassette. For details, refer to the instructions of the
cleaning cassette.
Demagnetizing the tape heads
Demagnetize the tape heads and the metal parts that
have contact with the tape every 20 to 30 hours of use
with a separately sold demagnetizing cassette. For
details, refer to the instructions of the demagnetizing
cassette.
Optional Components/Additional Information
Tab of side B Tab of side A
Break off the
cassette tab
of side A
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Troubleshooting
If you have any problem using this system, use
the following check list.
First, check that the power cord is connected
firmly and the speakers are connected correctly
and firmly.
Should any problem persist, consult your
nearest Sony dealer.
General
The display starts flashing as soon as you plug
in the power cord even though you haven’t
turned on the system (see step 5 of “Hooking up
the system” on page 7).
• Press DISPLAY twice when the system is turned
off. The demonstration disappears.
The clock setting/radio presetting/timer is
canceled.
• The power cord is disconnected or a power
failure occurs longer than half a day.
Redo the following:
—“Setting the time” on page 9
—“Presetting radio stations” on page 12
If you have set the timer, also redo “Waking up
to music” on page 18 and “Timer-recording radio
programs” on page 16.
There is no sound.
• Turn VOLUME clockwise.
• The headphones are connected.
• Insert only the stripped portion of the speaker
cord into the SPEAKER jack. Inserting the vinyl
portion of the speaker cord will obstruct the
speaker connections.
• There is no audio output during timer recording.
There is severe hum or noise.
• A TV or VCR is placed too close to the stereo
system. Move the stereo system away from the
TV or VCR.
“0:00” (or “12:00 AM”) flashes in the display.
• A power interruption occurred. Set the clock and
timer settings again.
The timer does not function.
• Set the clock correctly.
“DAILY” and “REC” do not appear when you
press CLOCK/TIMER SET.
• Set the timer correctly.
• Set the clock.
The remote does not function.
• There is an obstacle between the remote and the
system.
• The remote is not pointing in the direction of the
system’s sensor.
• The batteries have run down. Replace the
batteries.
There is acoustic feedback.
• Reduce the volume.
The color irregularity on a TV screen persists.
• Turn off the TV set once, then turn it on after 15
to 30 minutes. If the color irregularity still
persists, place the speakers farther away from the
TV set.
“PROTECT” and “PUSH POWER” appear
alternately.
• A strong signal was input. Press ?/1 to turn off
the system, leave the system turned off for a
while, then press ?/1 again to turn on the
system. If “PROTECT” and “PUSH POWER”
appear alternately even after the system is turned
on again, press ?/1 to turn off the system and
check the speaker cord.
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Speakers
Sound comes from one channel or unbalanced
left and right volume.
• Check the speaker connection and speaker
placement.
Sound lacks bass.
• Check that the speaker’s + and – jacks are
connected correctly.
There is excessive wow or flutter, or the sound
drops out.
• The capstans or pinch rollers are dirty (see
“Cleaning the tape heads” on page 21).
Noise increases or the high frequencies are
erased.
• The record/playback heads are magnetized (see
“Demagnetizing the tape heads” on page 21).
CD Player
The CD tray does not close.
• The CD is not placed properly.
The CD will not play.
• The CD is not lying flat in the disc tray.
• The CD is dirty.
• The CD is loaded label side down.
• There is moisture on the CD.
Play does not start from the first track.
• The player is in program or shuffle mode. Press
PLAY MODE repeatedly until “PGM” or
“SHUF” disappears.
Tape Deck
The tape does not record.
• No tape in the cassette holder.
• The tab has been removed from the cassette (see
“To save a tape permanently” on page 21).
• The tape has reeled to the end.
The tape does not record nor play or there is a
decrease in sound level.
• The heads are dirty (see “Cleaning the tape
heads” on page 21).
• The record/playback heads are magnetized (see
“Demagnetizing the tape heads” on page 21).
The tape does not erase completely.
• The record/playback heads are magnetized (see
“Demagnetizing the tape heads” on page 21).
Tuner
There is severe hum or noise (“TUNED” or
“STEREO” flashes in the display).
• Adjust the antenna.
• The signal strength is too weak. Connect the
external antenna.
A stereo FM program cannot be received in
stereo.
• Press STEREO/MONO repeatedly until
“MONO” disappears.
If other troubles not described above
occur, reset the system as follows:
1 Unplug the power cord.
2 Plug the power cord back in.
3 Press x, DISPLAY, and ?/1 at the same
time.
4 Press ?/1 to turn on the system.
The system is reset to the factory settings. All
the settings you made are cleared.
Additional Information
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Messages
Specifications
One of the following messages may appear or
flash in the display during operation.
NO DISC
• There is no CD on the disc tray.
OVER
• You have reached the end of the CD.
AUDIO POWER SPECIFICATIONS:
(MHC-RG4SR USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 100 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(MHC-RG30T USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 75 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(MHC-RG20 USA model only)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
with 6 ohm loads both channels driven, from
120 – 10,000 Hz; rates 60 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 50 W)
(6 ohms at 1 kHz, 30 W)
(6 ohms at 1 kHz, 30 W)
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Amplifier section
Canadian models:
MHC-RG30T
Continuous RMS power output (reference)
75 + 75 watts (6 ohms at
1 kHz, 10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 50 W)
MHC-RG20
Continuous RMS power output (reference)
60 + 60 watts (6 ohms at
1 kHz, 10% THD)
Total harmonic distortion less than 0.07%
(6 ohms at 1 kHz, 30 W)
European model:
MHC-RG20/RG11
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Music power output (reference)
95 + 95 watts (6 ohms at
1 kHz, 10% THD)
Other model:
MHC-DX10
The following measured at AC 120, 220, 240 V
50/60 Hz
DIN power output (rated) 40 + 40 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
50 + 50 watts (6 ohms at
1 kHz, 10% THD)
Inputs
GAME (AUDIO) IN (phono jack):
voltage 450 mV,
impedance 47 kilohms
Outputs
PHONES (stereo mini jack):
accepts headphones of
8 ohms or more
Front speaker: accepts impedance of 6 to
16 ohms
Surround speaker (MHC-RG4SR only):
accepts impedance of 6 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=780 nm)
Emission duration:
continuous
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassette
Wow and flutter ±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
Pan-American models: 530 – 1,710 kHz (with the
interval set at 10 kHz)
531 – 1,710 kHz (with the
interval set at 9 kHz)
European and Middle Eastern models:
531 – 1,602 kHz (with the
interval set at 9 kHz)
Other models: 531 – 1,602 kHz (with the
interval set at 9 kHz)
530 – 1,710 kHz (with the
interval set at 10 kHz)
Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz
continued
Additional Information
25
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Specifications (continued)
Speaker
North American model:
Front speaker SS-RG4 for MHC-RG4SR
Speaker system 2-way, 2-unit,
Speaker units
Woofer: 13 cm, cone type
Tweeter: 5 cm, cone type
Nominal impedance 6 ohms
Dimensions (w/h/d)
Mass Approx. 3.1 kg net per
North American and European models:
Front speaker SS-RG20 for MHC-RG20
Speaker system 2-way, 2-unit,
Speaker units
Woofer: 13 cm, cone type
Tweeter: 5 cm, cone type
Nominal impedance 6 ohms
Dimensions (w/h/d)
Mass Approx. 2.9 kg net per
Front speaker SS-RG11 for MHC-RG11
Speaker system 2-way, 2-unit,
Speaker units
Woofer: 13 cm, cone type
Tweeter: 5 cm, cone type
Nominal impedance 6 ohms
Dimensions (w/h/d)
Mass Approx. 2.9 kg net per
Front speaker SS-RG30T for MHC-RG30T
Speaker system 3-way, 3-unit, bass-reflex
Speaker units
Sub Woofer: 13 cm, cone type
Woofer: 13 cm, cone type
Tweeter: 5 cm, cone type
Nominal impedance 6 ohms
Dimensions (w/h/d)
Mass Approx. 4.0 kg net per
Surround speaker SS-RS60 for MHC-RG4SR
Speaker system Full range, bass-reflex
Speaker units
Full range: 8 cm, cone type
Nominal impedance 16 ohms
Dimensions (w/h/d)
Mass Approx. 1.0 kg net per
bass-reflex type
Approx. 200 × 325 × 223 mm
speaker
bass-reflex type
Approx. 200 × 325 × 223 mm
speaker
bass-reflex type
Approx. 200 × 325 × 223 mm
speaker
type
Approx. 215 × 325 × 254 mm
speaker
type
Approx. 180 × 101 × 198 mm
speaker
Other models:
Front speaker SS-DX10 for MHC-DX10
Speaker system 2-way, 2-unit,
Speaker units
Woofer: 13 cm, cone type
Tweeter: 5 cm, cone type
Nominal impedance 6 ohms
Dimensions (w/h/d)
Mass Approx. 2.9 kg net per
bass-reflex type
Approx. 200 × 325 × 223 mm
speaker
General
Power requirements
North American models: 120 V AC, 60 Hz
European models: 230 V AC, 50/60 Hz
Australian models: 230 – 240 V AC,
Mexican models: 120 V AC, 50/60 Hz
Other models: 120 V, 220 V or
Power consumption
USA models:
MHC-RG4SR: 160 watts
MHC-RG30T: 115 watts
MHC-RG20: 95 watts
Canadian models:
MHC-RG30T: 115 watts
MHC-RG20: 95 watts
European model:
MHC-RG20/RG11: 85 watts
Other model:
MHC-DX10: 85 watts
Dimensions (w/h/d)
Mass
North American models:
HCD-RG4SR: Approx. 8.7 kg
HCD-RG30T: Approx. 8.2 kg
HCD-RG20: Approx. 7.8 kg
European model:
HCD-RG20/RG11: Approx. 8.1 kg
Other model:
HCD-DX10: Approx. 8.2 kg
Supplied accessories: AM loop antenna (1)
Design and specifications are subject to change
without notice.
50/60 Hz
230 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
1.0 watts (at the Power
Saving Mode)
Approx. 280 × 325 × 421 mm
Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Front speaker pads (8)
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Sony Corporation Printed in China
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