display CHEVROLET TRAIL BLAZER 2002 1.G Repair Manual

3-47
If your vehicle has the Bose radio, your audio system
allows you to choose from four different equalization
settings: talk, driver, normal and spatial. These settings
can be used while listening to the radio or the CD player.
Press the AUTO EQ button to scroll through your
choices. Select TALK when listening to non
-musical
material such as news, talk shows, sports broadcasts and
books on tape. This settings makes spoken words sound
very clear. Select DRIVER to give the driver the best
possible sound qualities. Select NORMAL to enhance
the stereo effect. Select SPATIAL to make the listening
space seem larger. When AUTO EQ NORMAL is
displayed, the system will provide the best overall Bose
performance. The radio saves separate AUTO EQ
settings for each preset and source.Adjusting the Speakers
AUDIO (Balance/Fade): The AUDIO control
adjusts balance and fade. To adjust balance, press the
AUDIO control until BAL appears on the display.
Turn the control to adjust the sound to the left or right
speakers. The middle position balances the sound
between the speakers.
To adjust fade, press and hold the AUDIO control until
FAD appears on the display. Turn the control to adjust
the sound to the front or rear speakers. The middle
position balances the sound between the speakers.
To set the balance and fade to the middle position, select
balance or fade and press and hold the AUDIO control.
The radio will beep once and will set the display level to
the middle position.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when
tone or speaker controls are not active. The radio
will produce one beep and CENTERED will appear
on the display.

3-48
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS mode gives you many useful new
features. With RDS, the radio can do the following:

Seek only to stations with the types of programs you
want to listen to,

seek to stations with traffic announcements,

receive announcements concerning local and
national emergencies, and

receive and display messages from radio stations.
RDS features are only available for use on FM stations
which broadcast RDS information. The RDS features of
your radio rely upon receiving specific RDS information
from these stations. These features will only work when
the RDS information is available. In rare cases, a radio
station may broadcast incorrect information that will
cause the radio features to work improperly. If this
happens, please contact the radio station.
When you are tuned to an RDS station, the station
name will appear on the display, instead of the
frequency. Most RDS stations provide their station
name, the time of day and a Program Type (PTY) for
their current programming.P-TYPE: This button is used to turn on and off
Program Type (PTY) selections. PTY and the light next
to the button will turn on. The last selected PTY will
appear on the display for five seconds.
Turn the TUNE RCL P
-TYPE control to select the PTY
you want to listen to. Press the SEEK SCAN arrows to
find radio stations for the PTY you want to listen to. The
last PTY selected will be used for seek or scan modes.
If a station with the selected PTY is not found, NONE
FOUND will appear on the display. If both P
-TYPE and
TRAF are on, the radio will search for stations with
traffic announcements and the selected PTY.
To use the P
-TYPE interrupt feature, press and hold the
P
-TYPE button until you hear a beep on the PTY you
want to interrupt on. When you are listening to a compact
disc, the last selected RDS FM station will interrupt play
if that selected program type format is broadcast.
AM FM: The AM FM button operates the alternate
frequency feature. Alternate frequency allows the radio
to switch to a stronger station with the same program
type. Press and hold AM FM for two seconds to turn
alternate frequency on. AF ON will appear on the
display. The radio may switch to stronger stations.
Press and hold AM FM again for two seconds to turn
alternate frequency off. AF OFF will appear on the
display. The radio will not switch to other stations.

3-49
Setting PTY Preset Stations
The six numbered pushbuttons let you return to your
favorite Program Types (PTYs). These buttons have
factory PTY presets. You can set up to 12 PTYs
(six FM1 and six FM2) by performing the
following steps:
1. Press AM FM to select FM1 or FM2.
2. Press P
-TYPE, if it is not already on.
3. Turn the TUNE RCL P
-TYPE control to
select a PTY.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the PTY you set will return.
5. Repeat the steps for each pushbutton.
Radio Announcements
(Alert): Warns of national or local emergencies. You will
not be able to turn off alert announcements. ALERT!
appears on the display when an alert announcement plays.
When an alert announcement comes on the tuned radio
station, you will hear it, even if the volume is muted or a
compact disc is playing. If the compact disc player is
playing, play will stop for the announcement and resume
when the announcement is finished.INFO: If the current station has a message, INFO will
appear on the display. Press this button to see the
message. If the whole message does not appear on the
display, parts of the message will appear every three
seconds until the message is completed. To see the parts
of the message faster than every three seconds, press this
button again. A new group of words will appear on the
display. Once the complete message has been displayed,
INFO will disappear from the display until another new
message is received.
TRAF: Press this button to receive traffic
announcements. The traffic announcement brackets will
appear on the display. TRAF will appear on the display
if the tuned station broadcasts traffic announcements.
If the current tuned station does not broadcast traffic
announcements, the radio will seek to a station that
does. When the radio finds a station that broadcasts
traffic announcements, it will stop. If no station is found,
NONE FOUND will appear on the display.
When a traffic announcement comes on the tuned radio
station or a related network station, you will hear it,
even if the volume is muted or a compact disc is
playing. If the compact disc player was being used, the
compact disc will stay in the player and resume play at
the point where it stopped.

3-50
Playing a Compact Disc
LOAD CD
: Press this button to load CDs into the
compact disc player. This compact disc player will
accommodate up to six discs.
To insert one disc do the following:
1. Turn the ignition on.
2. Press and release the LOAD CD button.
3. Wait for the light, located to the right of the slot, to
turn green.
4. Load a disc. Insert a disc partway into the slot, label
side up. The player will pull the disc in.
When the disc is inserted, the CD symbol will be
displayed. If you select an EQ setting for your disc,
it will be activated each time you play a disc.
If the radio is on or off, the disc will begin to
play automatically.
To insert multiple discs do the following:
1. Turn the ignition on.
2. Press and hold the LOAD CD button for two seconds.
You will then hear a beep and the light, located to the
right of the slot, will begin to flash.3. Once the light stops flashing and turns green, load a
disc. Insert a disc partway into the slot, label side up.
The player will pull the disc in.
Once the disc is loaded, the light will begin flashing
again. Once the light stops flashing and turns green
you can then load another disc. The disc player takes
up to six discs. Do not try to load more than six.
When a disc is inserted, the CD symbol will be
displayed. If more than one disc has been loaded, a
number for each disc will be displayed. If you select
an EQ setting for your disc, it will be activated each
time you play a disc.
If the radio is on or off, the last disc loaded will
begin to play automatically.
4. To load more than one disc but less than six,
complete Steps 1, 2 and 3. When you have finished
loading discs, with the radio on or off, press the
LOAD CD button to cancel the loading function.
The radio will begin to play the last CD loaded.
As each new track starts to play, the track number will
appear on the display.

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Playing a Specific Loaded Compact Disc
For every CD loaded, a number will appear on the radio
display. To play a specific CD, first press the CD AUX
button to start playing a CD. Then press the numbered
pushbutton that corresponds to the CD you want to play.
A small bar will appear under the CD number that is
playing, and the track number will appear.
If an error appears on the radio display, see ªCompact
Disc Messagesº later in this section.
LOAD CD
: This button will eject a disc or discs, if
you have multiple discs loaded. To eject a disc or discs
from the disc player perform one of the following steps:

Press and release the LOAD CD eject button to eject
the disc that is currently playing, or

to eject all of the discs, press the LOAD CD eject
button for two seconds, you will hear a beep, and
the light will flash to let you know when a disc is
being ejected.
When the LOAD CD eject button is pressed, the
receiver will eject the disc and REMOVE CD will be
displayed. You can now remove the disc. If the disc
is not removed, after 25 seconds, the disc will be
automatically pulled back into the receiver.If you try to push the disc back into the receiver, before
the 25 second time period is complete, the receiver will
sense an error and will try to eject the disc several times
before stopping. Do not repeatedly press the LOAD CD
eject button to eject a disc after you have tried to push
it in manually. The receivers 25
-second eject timer will
reset at each press of eject, which will cause the receiver
to not eject the disc until the 25
-second time period
has elapsed.
Once the player stops and the disc is ejected, remove the
disc. After removing the disc, press the VOLUME PWR
control off and then on again. This will clear the
disc
-sensing feature and enable discs to be loaded into
the player again.
REV: Press and hold this button to reverse quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.
FWD : Press and hold this button to advance quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.

3-52
RPT: With repeat, you can repeat one track or an entire
disc. To use repeat, do the following:

To repeat the track you are listening to, press and
release the RPT button. RPT will appear on the
display. Press RPT again to turn it off.

To repeat the disc you are listening to, press and hold
the RPT button for two seconds. RPT will appear on
the display. Press RPT again to turn if off.
RDM: With random, you can listen to the tracks in
random, rather than sequential order, on all of the discs
or on one disc. To use random, do the following:

Press and release the RDM button to play the tracks
on all of the discs that are loaded, in random order.
RDM will appear on the display. Press RDM to turn
it off.

To play the tracks on the disc you are listening to in
random order, press and hold RDM for more than
two seconds. You will hear a beep and RDM will
appear on the display. Press RDM again to turn
if off.AUTO EQ: Press AUTO EQ to select the desired preset
equalization setting while playing a compact disc. The
equalization will be automatically set whenever you
play a compact disc. For more information on AUTO
EQ, see ªAUTO EQº listed previously in this section.


SEEK SCAN: To seek, press the left arrow while
playing a CD to go to the start of the current track, if
more than ten seconds have passed. Press the right arrow
to go to the next track. If you press the button more than
once, the player will continue moving backward or
forward through the disc.
To scan one disc, press and hold either SEEK SCAN
arrow for more than two seconds until SCAN appears on
the display and you hear a beep. Use SEEK SCAN to
listen to each track of the currently selected disc for ten
seconds. The sound will mute while scanning. SCAN
will appear on the display. Press either SEEK SCAN
arrow again, to stop scanning.
To scan all loaded discs, press and hold either SEEK
SCAN arrow for more than four seconds until DISC
SCAN appears on the display and you hear a beep. Use
DISC SCAN to listen to the first track, for ten seconds
for each disc loaded. The sound will mute while
scanning to the next track. DISC SCAN will appear on
the display. Press either SEEK SCAN arrow again, to
stop scanning.

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TUNE RCL P-TYPE: Press this control to see how
long the current track has been playing. To change what
is normally shown on the display (track or elapsed
time), press the control until you see the display you
want, then hold the control until the display flashes.
AM FM: Press this button to play the radio when a disc
is in the player.
Using Song List Mode
The integrated 6
-disc CD changer has a feature
called song list. This feature is capable of saving
20 track selections.
To save tracks into SONG LIST perform the
following steps:
1. Turn the disc player on and load it with at least one
disc. See ªLOAD CDº mentioned previously for
more information.
2. Check to see that the disc changer is not in song list
mode. S
-LIST should not appear in the display. If
S
-LIST is present, press SONG LIST to turn it off.
3. Select the desired disc by pressing the numbered
pushbutton and then use the SEEK SCAN right
arrow button to locate the track that you want to
save. The track will begin to play.4. Press and hold the SONG LIST button for two
or more seconds to save the track into memory.
When SONG LIST is pressed a beep will be heard
immediately. After two seconds of pressing SONG
LIST continuously, two beeps will sound to confirm
that the track has been saved.
5. Repeat Steps 3 and 4 for saving other selections.
If you attempt to save more than 20 selections, S
-LIST
FULL will appear on the display.
To play the song list, press SONG LIST. One beep will
be heard and S
-LIST will appear on the display.
The recorded tracks will begin to play in the order that
they were saved.
You may seek through the song list by using the SEEK
SCAN arrows. Seeking past the last saved track will
return you to the first saved track.
To delete tracks from SONG LIST perform the
following steps:
1. Turn the disc player on.
2. Press SONG LIST to turn song list on. S
-LIST will
appear on the display.
3. Press the SEEK SCAN arrows to select the desired
track to be deleted.

3-54
4. Press and hold the SONG LIST button for two
seconds. When pressing SONG LIST one beep will
be heard immediately. After two seconds of pressing
the SONG LIST button continuously, two beeps will
be heard to confirm that the track has been deleted.
After a track has been deleted, the remaining tracks are
moved up the list. When another track is added to the
song list, the tracks will be added to the end of the list.
To delete the entire SONG LIST perform the
following steps:
1. Turn the disc player on.
2. Press SONG LIST to turn song list on. S
-LIST will
appear on the display.
3. Press and hold SONG LIST for more than four
seconds. A beep will be heard, followed by two
beeps after two seconds and a final beep will be
heard after four seconds. S
-LIST EMPTY will
appear on the display indicating that the song list
has been deleted.If a disc is ejected, and the song list contains saved
tracks from that disc, those tracks are automatically
deleted from the song list.
To end SONG LIST mode, press the SONG LIST
button. One beep will be heard and S
-LIST will be
removed from the display.
Compact Disc Messages
(Check CD): If this message appears on the
radio display, it could be due to one of the
following conditions:

The road is too rough. The disc should play when the
road is smoother.

The disc is dirty, scratched, wet or upside down.

The air is very humid. If so, wait about an hour and
try again.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer. If your radio
displays an error message, write it down and provide it
to your dealer when reporting the problem.

3-55 Rear Seat Audio (If Equipped)
This feature allows rear seat passengers to listen to any
of the music sources including AM
-FM, cassette tapes
or CDs and to use automatic tone control. The rear seat
passengers can only control the music sources that the
front seat passengers are not listening to. For example,
rear seat passengers may listen to a cassette tape or CD
through headphones while the driver listens to the radio
through the front speakers. The rear seat passengers
have control of the volume for each set of headphones.
The front seat audio controls always override the rear
seat audio controls.This feature is intended for rear seat passengers.
The following functions are controlled by the rear seat
audio system buttons:
PWR: Press this button to turn the rear seat audio
system on or off. The rear speakers will be muted when
the power is turned on unless you have a Bose


equipped vehicle. You may operate the rear seat audio
functions even when the primary radio power is off.
VOL: Turn the knob clockwise to increase volume and
counterclockwise to decrease volume. The left VOL
knob controls the left headphone and the right VOL
knob controls the right headphone.
PROG: With a cassette tape in the player and the radio
playing, press this button to play a cassette tape. Press
PROG to switch between the tape and compact disc if
both are loaded. Press PROG again to return to the radio
when a cassette tape or compact disc is playing. The
inactive tape or CD will remain safely inside the radio
for future listening.
SEEK: Press the SEEK button to tune to the next
station and stay there. The display will show your
selection. The sound will mute while seeking.
Press and hold the SEEK button to seek through
your preset radio stations set on your primary radio
pushbuttons. The display will show your selections.

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The SEEK button is inactive if the AM FM mode on
the front radio is in use.
While listening to a cassette tape, press the SEEK button
to hear the next selection on the tape. Press and hold the
SEEK button to go to the other side of the tape. The
SEEK button is inactive if the tape mode on the front
radio is in use.
While listening to a CD, press the SEEK button to
hear the next selection on the CD. The SEEK button
is inactive if the CD mode on the front radio or the
CD changer is in use.
Theft-Deterrent Feature RDS Radios
THEFTLOCK
is designed to discourage theft of your
radio. The feature works automatically by learning a
portion of the Vehicle Identification Number (VIN).
If the radio is moved to a different vehicle, it will not
operate and LOCKED will be displayed.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK is armed.
With THEFTLOCK activated, your radio will not
operate if stolen.
Audio Steering Wheel Controls (If Equipped)
If your vehicle has this
feature, certain radio
functions can be
operated by using the
controls on your
steering wheel.
AM/FM: Press this control to tune to the next radio
station. When playing a cassette tape or compact disc,
press AM/FM to switch to the radio.
(Program): Press this control to tune to the next
preset radio station. When playing a cassette tape, press
program to hear the other side of a tape that is playing.
When using the CD changer, this control will seek to the
next selection.
(Volume): Press the up or down arrow to increase
or decrease volume.