OWNER'S MANUAL
ELECTRONICALLY-TUNED
AM/FM/MPX RADIO WITH
AUTO-REVERSE CASSETTE PLAYER,
CD CHANGER CONTROLS
AND QUARTZ CLOCK
Model GM-250
6 FM/AM BAND SELECTOR
Each time this button is pressed, the radio band is changed. The indication AM,
FM1 or FM2 will appear on the display panel according to your selection.
7 MANUAL UP/DOWN TUNING
SEEK TUNING
To manually select a radio station, momentarily press the Up Tuning (
) side of
) side of
the button 7 to advance the unit one digit higher or the Down Tuning (
the button to tune downward. Pressing either side of the button for longer than 0.5
second will activate the Seek Tuning function and cause the radio to search for
stationsautomatically. Theradiowillseekthenextstationandstopatthatfrequency.
Continuing to hold the button will cause the radio to tune rapidly in the selected
direction until the button is released.
8 AUTO-STORE TUNING (AS)
PRE-SET SCAN TUNING (PS)
During radio operation, press this button momentarily to scan the five stations pre-
set into the memories of the AM band or the ten pre-set memories of the FM bands.
The unit will stop at each pre-set station for 5 seconds before continuing to the next
pre-set station (the channel indicator number on the display panel will flash). Press
the button again momentarily to stop the Pre-Set Scan operation and remain on the
selected frequency.
Pressing the button for longer than 1 second will activate the Auto-Store Tuning,
whichwillautomaticallyscanthebandandenteruptofivestrongstationsintothepre-
set memory positions of that band. If you have already set the pre-set memories to
your favorite stations, activating the Auto-Store feature will erase those stations and
enterthenewstrongstations. Thisfeatureismostusefulwhentravelinginanewarea
where you are not familiar with the local stations.
9 STATION PRE-SET MEMORIES
To set any of the 5 pre-set memory buttons, use the following procedure:
1. Turn the unit on and select the desired band.
2. Selectthefirststationtobepre-setusingtheManualTuning 7 orSeek functions.
3. Press the pre-set button to be set and continue to hold the button in. The volume
will be muted for approximately 2 seconds and then return. The station is now set
into that pre-set-button. To recall that station, press the button momentarily.
4. Repeat the above procedure for the remaining 4 pre-sets on the band and for the
other 2 bands of the unit.
bl LIQUID CRYSTAL DISPLAY PANEL
The Liquid Crystal Display (LCD) panel displays the frequency, time and activated
functions.
NOTE: It is a characteristic of LCD panels that, if subjected to cold temperatures for
an extended period of time, they will take longer to illuminate than under
-2-
normal conditions. In addition, the visibility of the numbers on the LCD may
slightlydecrease. TheLCDread-outwillreturntonormalwhenthetempera-
ture increases to a normal range.
bmCASSETTEDOOR
Hold the cassette with the exposed tape edge to the right and insert into the cassette
door. Depress fully until the cassette is engaged and begins playing. When the
cassette reaches the end of the side of the tape being played, the unit will
automaticallychangedirectionofplayasshownbythearrowindicationonthedisplay
panel and play of the other side of the cassete will begin.
NOTE:ObservecassetteoperationCautionsinCareandMaintenancesectionofthis
manual.
bnFAST-FORWARDBUTTON(FF)
Pushing the Fast-Forward button will cause the tape to move rapidly in the forward
direction of play. To stop Fast-Forward movement, lightly push the Rewind Button
bo untiltheFast-Forwardbuttondisengages.
boREWINDBUTTON(REW)
PushingtheRewindbuttonwillcausethetapetomoverapidlyinthereversedirection
ofplay. TostopRewindmovement,lightlypresstheFast-Forwardbutton bn untilthe
Rewind button disengages.
bpPROGRAMSELECTOR
To manually reverse tape direction and play the other side of a cassette, lightly press
boththeFast-Forward bn andRewind bo buttonsatthesametime. Thechangeof
direction will be shown by the arrows on the LCD panel.
bqEJECTBUTTON
Tape playback is stopped and the cassette is ejected by pressing this button, which
also has the function of switching over to radio operation.
brMODESELECTOR
Thisbuttonisusedtoselecttheaudiosourceinplay. Duringtapeplay, itcanbeused
to change to radio play without ejecting the cassette. Similarly, it can then be used
to go back to tape operation from radio play.
NOTE: To prevent damage to cassette tape and/or mechanism, it is recommended
that the cassette be ejected if it will not be played for prolonged periods.
bsTIME/FREQUENCYSELECTOR(T/F)
During radio operation, push this button to call the time display on the incorporated
quartz clock. Pressing the button again will return to frequency display.
During CD changer operation, push this button to call the time display or return to the
disc and track number indications.
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btRE-SETBUTTON
A re-set button is located on the front panel which must be activated by a pen tip or
other thin object as it is recessed to prevent accidental engagement. The re-set
circuitry is provided to protect the microprocessor circuitry and should only be
activated under the following circumstances as it will erase the time and station pre-
set memories.
1. Upon initial installation after all wiring is completed.
2.Ifthereisamalfunctionofanyoftheswitchesontheunit,pressingthere-setbutton
may clear the system and return to normal operation.
SETTING THE CLOCK
1. Switch the vehicle ignition on and the radio on".
2. If the radio frequency is shown on the LCD panel bl, press the Time/Frequency
Selector (T/F) bsmomentarily so that the time display is shown.
3. With the time display on the LCD panel, press and hold the Time/Frequency
Selector (T/F) bs for approximately 2 seconds until the time display begins
flashing.
4. Within 5 seconds of the display beginning to flash, press the Down Tunin
)
side of the button 7to adjust the hours, then the Up Tuning (
) side of the
button to adjust the minutes to the correct time.
5. After setting the correct time, press the Time/Frequency Selector (T/F) again or
wait 5 seconds for the display to stop flashing.
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CD CHANGER CONTROLS
Built into this radio are controls to operate an optional 10-disc or 6-disc CD changer.
Please check with your SPS/Audiovox or Prestige car stereo specialist for recom-
mendations of the models that will work with this radio.
Adjustmentofaudiofunctions(volume,tone,balance,andfader)operateinthesame
manner during CD play as they do for radio/cassette play. The following controls will
operate the CD changer when it is installed and connected to this radio. Refer to the
owners manual included with the CD changer for instructions on the installation and
correct loading and use of the CD magazine.
buMODESELECTOR(MODE)
With the CD changer connected to the unit, this button is used to select CD changer
operation. To choose CD mode, press the button until the DISC and TRACK
indicationsappearonthedisplaypanel. PresstheModebuttonagaintochangeback
to radio or tape operation.
cl & cm DISC SELECT (
DISC
)
These buttons are used to select the desired disc for play. To advance to a higher
number disc, press the
button cl . To return to a lower number disc, press
button cm . The number of the disc in play will be shown on the display
the
panel.
cn TRACK SELECT (
TRACK
)
This button is used to quickly select the beginning of a particular track. Tap the
Forward Track Select ( ) side of the button or Backward Track Select (
)
side of the button to locate the desired track as shown by the track number on the
display panel.
co CUE/REVIEW FUNCTIONS (
) (
)
High-speed audible search to any section of the disc can be made by the Cue and
Reviewfunctions. PressandholdtheCue( ) sideofthebutton toadvancerapidly
in forward direction or the Review (
backward direction.
) side of the button to advance rapidly in the
When the Cue (
on the disc is reached or the Review (
) side of the button is held down and the end of the last track
) side of the button is held down until the
beginning of the first track is reached, the unit will enter the Pause mode (
flash on the display panel) until the button is released.
will
cpPAUSESELECTOR
Pressing this button will temporarily stop play of the disc (the
indication will flash
onthedisplaypanel). Pressthebuttonagaintoresumeplayofthediscfromthepoint
at which it had stopped.
cqTRACK/DISCSCAN(SCAN)
WhentheScanbutton cq ispressed,theSCANindicationwillappearonthedisplay
panel and the first 10 seconds of each track on the disc will be played in order. When
adesiredtrackisreached, presstheScanbutton cq againandplayofthattrackwill
continue (SCAN will disappear from the display panel). The Track Scan mode will
also be cancelled by activating any other disc function (Select, Cue, Review, Shuffle
or Repeat).
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WhentheScanbutton cq ispressedandheldlongerthan2seconds, theDISCand
SCAN indications will appear on the display panel and the first 10 seconds of the
firsttrackoneachdiscwillbeplayed. Whenadesireddiscisreached,presstheScan
button cq again and play of the disc will continue (DISC and SCAN will disappear
from the display panel). The Disc Scan mode will also be cancelled by activating any
other disc function (Select, Cue, Review, Shuffle or Repeat).
crTRACK/DISCREPEAT (RPT)
WhentheRepeatbutton cr ispressed,theRPTindicationwillappearonthedisplay
panelandplayoftheselectedtrackwillbecontinuallyrepeateduntiltheTrackRepeat
mcqodeorisSchaunffcleelclesd bfuynpcrteiosnsisn(gRthPeTRweilpl edaistabpuptteoanrcfrormagthaeindoisrpblyayacptaivnaetiln).g the Scan
When the Repeat button cr is pressed and held longer than 2 seconds, the DISC
and RPT indications will appear on the display panel and play of the selected disc
willbecontinuallyrepeated. TheDiscRepeatmodecanbecancelledbypressingthe
RepeatbuttoncragainorbyactivatingtheScan cq orShuffle cs functions (DISC
and RPT will disappear from the display panel).
csTRACK/DISCSHUFFLE(SHF)
WhentheShufflebutton cs ispressed,theSHFindicationwillappearonthedisplay
panel andthetracksonthediscwillbeplayedinarandom, shuffledorder. TheTrack
Select button cn will also select tracks in the shuffled order instead of the normal
progression. TheTrackShufflemodecanbecancelledbypressingtheShufflebutton
againorbyactivatingtheScan cq orRepeat cr functions(SHF willdisappearfrom
the display panel).
When the Shuffle button cs is pressed and held longer than 2 seconds, the DISC
and SHF indications will appear on the display panel and the discs in the magazine
will be played in a random, shuffled order as well as the tracks on each disc. When
all the tracks on the selected disc have been played, the next disc will be chosen in
shuffled order and its tracks will be played in shuffled order. The Disc Shuffle mode
canbecancelledbypressingtheShufflebutton cs againoractivatingtheScan cq
or Repeat cr functions (DISC and SHF will disappear from the display panel).
ERROR SIGNS
If a problem should develop while operating the CD changer, the following error sign
indications may appear on the display panel.
E:01 Indicates abnormal disc changer function. Consult your car stereo
specialist or service facility for further assistance.
E:02 Indicates excessive temperature conditions. The error sign will go
offandplaywillresumewhenthechangertemperaturereturnstothe
normal range.
E:07 Indicated disc may be loaded in the magazine upside-down. Re-
load disc properly if necessary. May also indicate that the disc is
dirty in which case, clean the disc and re-load it. If this does not
restore correct operation, consult your car stereo specialist or
service facility for further assistance.
- - -
Magazine is not loaded in the changer.
0 0 0 No discs are loaded in the magazine.
1:- -
Nodiscisloadedinmagazinetray#1.(2:--indicationfortray#2,etc.)
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CARE AND MAINTENANCE
The radio portion of your new sound system does not require any maintenance. We
recommend you keep this manual for future reference on how to set the clock and for
general reference of the many features found in this unit.
As with any cassette player, the cassette section of this sound system does require
aminimumofmaintenancetokeepitingoodworkingcondition. Thefollowingsimple
careandmaintenancesuggestionsshouldbefollowedtopreventmalfunctionsofthe
cassette system.
CASSETTE CARE:
1. Purchase a cassette cleaning kit from your local retail store. Use it! At least every
20 to 30 hours of operation you must clean the cassette mechanism. A dirty
cassette player will have a poor sound.
2. Do not use cassettes that exceed 45 minutes of play on each side.
3. Do not insert a cassette that appears to be broken, twisted or dirty or with loose
or torn labels on it.
4. Alwayskeepyourcassettesawayfromdirectsunlightorexposuretosub-freezing
conditions. If a cassette is cold, allow it to warm up before use.
5. Do not keep a cassette in the player when not in use.
6. Before inserting a cassette in the player, check that the tape is tightly wound on
the reels. Take up any excess slack using a pencil to turn the drive hub in the
cassette (see diagram below).
Audiovox Corporation, Hauppauge, N.Y. 11788
Form No. 128-4761
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