For 1990-2009 cars

### Delco® System

The DELCO® entertainment system consists of an electronically tuned AM-FM stereo receiver with cassette and six speakers. The speakers are arranged as follows:

1. The 6.5 in. front side door speakers (mid-range) mounted in the lower front doors
2. The 2 in. front side door tweeters (high frequency) mounted to the upper front doors
3. The 3.5 in. rear side door speakers (high/mid-range) mounted in the lower rear side doors

On the DELCO® systems, the radio performs all processing and amplification functions, and amplifies the system speakers directly.

The DELCO® radio is located in the center of the I/P and provides all operator interface to the radio and cassette (or CD changer if equipped) functions. The I/P dimmer lamp control controls the incandescent bulbs which provide the backlighting.

The park lamp input controls the LED enunciators dimming. The Vacuum Tube Fluorescent (VTF) display indicates the time of day, the radio frequency, or the CD track information. The I/P cluster supplies the Pulse Width Modulated (PWM) signal to control the VTF.

The radio internally grounds the speakers in all DELCO® music systems.

The improper installation of add-ons such as tape players, CBs, etc., may damage the system.

### Button Control Functions

• | (1) DSPL -- Pressing this button will display either the time of day or the current station being played.

• | (2) Preset Stations -- The six preset buttons can be preset for up to 18 stations, 6 each of the AM, FM1, and FM2 bands. Preset the stations as follows:

- | Select the desired band using the BAND button.

- | Tune to the desired station.

- | Press and hold one of the six preset buttons until a chime sounds. (The display channel number and the audio will return.)

- | Holding the button for longer than two seconds will activate the fast seek mode.

• | (3) FADE

- | Lightly press the knob in order to extend outward.

- | Turn the knob clockwise or counterclockwise in order to move the sound to the RH or LH speakers.

- | The middle knob position is a detent and balances the speakers.

• | (4) BAL

- | Lightly press the knob in order to extend outward.

- | Turn the knob clockwise or counterclockwise in order to move the sound to the RH or LH speakers.

- | The middle knob position is a detent and balances the speakers.

• | (5) SCAN

- | Press and hold this button for 2-3 seconds or until the display shows PSCAN.

- | Each of the presets will be scanned for a few seconds and will continue until the button is pressed again.

• | (6) TREBLE

- | Lightly press the knob in order to extend outward.

- | Rotate the knob clockwise or counterclockwise in order to increase or decrease the treble response of the music.

• | (7) TUNE/SEEK

- | Press this button until a chime is heard in order to tune to the next higher or lower frequency.

- | If the button is held for more than two seconds after the chime, the radio will go into the fast tune mode.

- | Release the button when the desired station is reached.

• | (8) BASS

- | Lightly press the knob in order to extend outward.

- | Rotate the knob clockwise or counterclockwise in order to increase or decrease the bass response of the music.

• | (9) BAND

- | Press up for access to the FM1 and FM2 bands.

- | Press down for access to the AM band.

• | (10) PWR/VOL Knob

- | Press the volume knob in order to turn the radio ON or OFF.

- | Turn the knob clockwise/counterclockwise in order to turn the volume up or down. The knob is designed to turn infinitely.

• | (11) SOURCE -- Press this button in order to toggle between the radio, cassette, and CD functions.

• | HR/MIN (Clock)

- | Press DSPL until the clock is displayed.

- | Press and hold HR or MIN until the time display begins to change.

- | Release the button when you reach the correct time.

- | There is a two second delay before the clock goes into the time-set mode.

### Delco-Bose® System

The DELCO-BOSE® entertainment system consists of the following components:

• | Electronically tuned AM-FM stereo receiver with cassette and CD (incl. mini-CD capability)

• | Speaker amplifier (mounted under the rear parcel shelf)

• | Signal processor (mounted under the rear parcel shelf)

• | 6.5 in. front side door speakers (mid-range) mounted in the lower front doors

• | 2 in. front side door tweeters (high frequency) mounted to the upper front doors

• | 3.5 in. rear side door speakers (high/mid-range) mounted in the lower rear side doors

• | 6.5 in. rear speakers (low frequency) mounted under the rear parcel shelf

On DELCO-BOSE® systems, the radio passes the line level output audio signals to the radio signal processor for processing, and then to the radio speaker amplifier for amplification to the speakers. The single amplifier powers all of the speakers.

The radio internally grounds the speakers in all DELCO-BOSE® music systems. Improper installation of add-ons such as tape players, CBs, etc., may damage the system.

The 1x24 dot matrix Vacuum Tube Fluorescent (VTF) display has the capability to show all messages in the default language of English and in French, German, Japanese Katikana and Spanish.

Backlighting for the radio is provided by incandescent lamps behind the buttons and the trimplate (PWR and VOL) inserts. The PWM signal for incandescent backlighting is supplied from the vehicle lighting center and connected directly to the lamps via pins E5 and F5 of the main connector.

When a cassette or CD is not loaded, the halo light surrounding the openings will be lit. When a cassette or CD is loaded, the halo light will extinguish.

### Radio Data Systems (RDS)

RDS is the European standard for providing information inaudibly via an FM subcarrier band. The US has adopted a similar standard called the Radio Broadcast Data System (RBDS). This feature is not available in the AM or weather modes, however the feature is available when the radio is playing a cassette or CD.

RDS features are only available for use on FM stations which broadcast RDS information. RDS information includes the ability to seek for stations with the type of programming desired, traffic announcements, emergency broadcasts and searches for a stronger station (with the same program type) when a station is too weak for listening.

### Theft Protection

Theftlock mode will activate if a valid VIN is stored in the radio and it does not match the last reported VIN via Class 2 communication. DTC B1780 will set and the DTC will store to radio memory.

If a valid VIN is stored in the radio memory, and a VIN is not reported since battery power for the radio was received, theftlocked mode will activate. As in the previous event, DTC B1780 will set and store to radio memory.

When theftlock is active, and the radio is installed in a different vehicle with the same power mode, the radio will display: Locked - THEFTLOCK Active. If a radio, with theftlock active, is installed in a different vehicle with a different power mode, the radio display will be blank.

DTC B1780 will automatically clear when the radio receives the correct VIN or it may be cleared with the scan tool.

Use the scan tool to clear a previous VIN from radio memory. Once the memory is clear, and the radio is powered up, the radio will automatically capture the vehicle's VIN via the Class 2 communication loop and store it to memory.

### Media Cooling

If the temperature of the cassette or the CD reaches 60° C while the radio is on, an internal cooling fan will come on to cool the cassette or CD. When the temperature has been reduced to 50° C the fan will shut off.

### Preset Defaults

Band | Preset | Default
--- | --- | ---
FM1 | P1 | 87.75
| P2 | 88.1
| P3 | 92.3
| P4 | 98.1
| P5 | 100.5
| P6 | 107.9
FM2 | P1 | 90.1
| P2 | 95.1
| P3 | 99.7
| P4 | 102.5
P5 | 105.5
P6 | 107.7
AM | P1 | 530
P2 | 600
P3 | 1000
P4 | 1400
P5 | 1600
P6 | 1710
FM1 PTY | P1 | Adlt Hit
P2 | Classical
P3 | News
P4 | Public
P5 | Rock
P6 | Country
FM2 PTY | P1 | Jazz
P2 | Oldies
P3 | Religious Music
P4 | Soft Rock
P5 | R & B
P6 | Top 40

### Program Type (PTY) List

PTY List | Description
--- | ---
Adlt Hit | Adult Hits
Any | Any
Classicl | Classical
Cls Rock | Classic Rock
College | College
Country | Country
Info | Information
Jazz | Jazz
Language | Language
News | News
Nostalga | Nostalgia
Oldies | Oldies
Persnlty | Personality
Public | Public Radio
R & B | Rhythm and Blues
Rel Music | Religious Music
Rel Talk | Religious Talk
Rock M | Rock Music
Soft | Easy Listening
Soft Rock | Soft Rock
Sports | Sports
Talk | Talk
Top 40 | Top 40
Weather | Weather

### Button Control Functions

• | (1) HR or HM--Press the orange RDS Shift/Select button followed by one of these buttons to display the time for the current station.

| The clock time feature allows the radio clock to be automatically updated by the RDS system. The radio will receive the time from an RDS station and store it to memory. This allows the radio to display the current time when requested by the operator without waiting for an update from the station.

| To display the station's clock time, press the orange RDS Shift/Select button then, within five seconds, press and hold either the HR or MN buttons for 2 seconds.

| If the HR or MN button is pressed again within that five seconds, the vehicle clock will be updated with the new time via a Class 2 message.

| If station time was not available, the radio will display NO STATION TIME.

• | (2) TONE--Press and release this button until the desired tone control is found.

• | (4) LEVEL--After selecting the desired tone control, press the plus or minus symbol on this button to achieve the desired level of tone.

• | (3) SPEAKER--Press and release this button until the desired Balance and Fade control is found.

• | (4) LEVEL--After selecting balance or fade, press the plus or minus symbol on this button to achieve the desired amount of balance or fade.

• | (5) RDS SHIFT/SELECT (Orange rectangular button in lower right hand corner)--Press to use the alternate RDS functions located on the six numbered pushbuttons.

• | (6) < PTY >--With the RDS on, press the orange RDS Shift/Select button followed by < or >. The Program Type (PTY) Seek and Scan feature identifies a station by the current program being broadcast (such as News, Rock, Country, etc.). The PTY can be selected by pressing either of the PTY buttons within five seconds of pressing the orange RDS Shift/Select button.

| This will allow the user to scroll through the PTY list in alphabetical order. The last PTY viewed becomes the active PTY. The program type (PTY) , used in conjunction with SEEK and SCAN, allows the user to seek or to scan to stations matching the active PTY.

| If PTY is on, but the radio is not tuned to an RDS station, a SEEK or SCAN will cause the radio to stop on an RDS station with a PTY of ANY.

| When a SEEK is performed and both PTY and Traffic Announcement (TA) are on, the radio will stop only on a station that matches the active PTY and is also broadcasting TAs. If no stations are found with the selected PTY and TA, the SEEK will terminate and return to the original station. The display will indicate NONE FOUND for 3 seconds.

• | (7) PRESETS--Six numbered pushbuttons allow for storage of up to 24 stations in memory (six AM, six FM1, six FM2 and six weather) and 12 PTYs (six FM1 and six FM2).

| Presets are stored in non-volatile memory and do not require resetting after battery disconnect.

• | (8) PTY--This button toggles on and off Program Type (PTY) scans.

• | (9) MSG--With the RDS on, if the current station displays a message, MSG will appear on the display. Press the orange RDS Shift/Select button followed by this button to view the message. If the whole message does not appear on the display, parts of the message will display every three seconds until the whole message has been displayed. To view the parts of the message faster, push the MSG button again. Once the message has been completely displayed, the MSG will disappear from the display. Each message can only be read once.

• | (10) TA--Press the orange RDS Shift/Select button followed by this button to receive traffic announcements. The TA icon will display.

| The Traffic Announcements (TA) / Traffic Program (TP) feature allows the system to receive traffic announcements even with the volume muted or when using the cassette or CD player. If the current tuned station broadcasts a traffic announcement the TP icon will be illuminated. The volume will default to a preset volume of two full blocks of the volume display for traffic announcements.

| If PTY (program type) is on and TA is enabled, the radio will perform a SEEK for a station with a TA and the selected program type (PTY). If no stations are found with the selected program type and broadcasting a TA, the radio will continue to SEEK to a station with a TA. This will result in the PTY being changed to the new station's program type (PTY) whether the user wanted this program type or not.

| If while in the tuner mode and listening to an RDS station with TA on and the TP of the station quits or is out of range, the radio will not automatically search for a new TP.

| ALERT appears on the display when a local or national emergency is broadcast. You will not be able to turn off ALERT announcements. The radio will default to TA volume for alert broadcasts, volume may be increased by turning the PWR/VOL knob. Alert announcements will be audible even if the cassette or CD is in use. If the radio tunes to a related network station for the alert announcement, it will return to the original station when the announcement is over. Cassette or CD operation will continue when the announcement is finished.

• | (11) RDS--Press the orange RDS Shift/Select button followed by this button to turn on the RDS. The RDS display will turn on. The RDS display will also turn on if one of the RDS functions has been pressed on. If tuned to a station broadcasting RDS information, the station's call letters and Program Type (PTY) will replace the station's frequency on the display. Press BAND to recall the frequency and program type displays. If the station becomes weak, RDS will search for a stronger station in the network.

| To enable the REGION function for station searches within a network, press the orange RDS Shift/Select button, then, press and hold the RDS button for 2 seconds. REGION: ON will appear on the display. Press RDS to turn the REGION function off.

| Press the orange RDS Shift/Select button followed by this button to shut off all RDS functions.

• | (12) BAND--Press to select AM, FM1, FM2 or weather.

• | (13) SCAN--Press for less than 2 seconds to scan radio stations. The radio will stop at a station and stay for 5 seconds, then go on to the next station. Press again to stop scanning.

• | (13) PRESET SCAN--Press and hold for more than 2 seconds until you hear a beep. The radio will go to the first stored preset station, stop for five seconds, then go on to the next preset. Press again to stop scanning.

• | (14) TUNE-SEEK--Press to move to the next higher or lower station. Press and hold to continue moving up or down through the band.

• | (15) SOURCE--Press to switch between audio sources, such as the CD changer and the radio.

• | (16) PWR/VOL-- Press lightly to turn the system off and on. Turn to the left or right to increase or decrease the volume.

### Playing a Cassette

#### Cassette Loading

The cassette player is the auto loading type. When a cassette is inserted the specified distance, the mechanism takes over and completes the loading operation.

Insertion Force | 1.0 - 3.0 N
Loading Take Over Position | 3 - 7 mm from trimplate
Eject Distance | 11 - 15 mm from trimplate

#### Cut Tape Feature

The radio has a cut tape feature to allow the use of a cleaning tape. This feature is enabled by turning off radio power and pressing and holding the SOURCE button for approximately 2 seconds. The tape icon will flash 3 times to acknowledge the feature is enabled. The cut tape feature remains enabled until the tape is ejected.

#### Clean Tape Feature

The radio keeps track of the length of time the cassette has been played. After 50 hours of playing time, the radio will display CLEAN TAPE for approximately 3 seconds when a tape is played. This can be cleared by pressing and holding the tape eject button for approximately 3 seconds. The radio will then display CLEAN TAPE MESSAGE CLEARED for approximately 3 seconds.

#### Button Control Functions

• | (2) SIDE--Press this button to change the side of the tape that is playing.

• | (3) SCAN--Press this button to listen to a selection for a few seconds. The tape will go to a selection, stop for a few seconds, then go to the next selection. Press this button again to stop scanning.

• | (4) TUNE-SEEK--Press this button to seek to the next or previous selection on the tape. The tape must have at least three seconds of silence between each selection for this function to work. The radio will not play during this time.

• | (5) RW--Press to rewind the tape rapidly. The radio will play while the tape is rewinding. Press this button again to return to playing speed.

• | (6) FF--Press to fast forward to another part of the tape. The radio will play while the tape advances. Press this button again to return to playing speed.

### Playing a CD

#### CD Loading

The CD player is the auto loading type. When a CD is inserted the specified distance, the mechanism takes over and completes the loading operation.

Insertion Force | 1.0 N max on initial insertion 5.0 N max from eject position
Loading Take Over Position | 73 - 77 mm from trimplate
Eject Distance | 48 - 52 mm from trimplate

#### Button Control Functions

• | (1) RDM--Press to hear tracks in random order rather than sequentially. Press this button again to turn off random play.

• | (3) SCAN--Press this button to listen to selection for a few seconds. The tape will go to a selection, stop for a few seconds, then go to the next selection. Press this button again to stop scanning.

• | (4) TUNE-SEEK--Press to seek to the next or previous selection.

• | (5) RW--Press and hold the left arrow to reverse the CD.

• | (6) FF--Press and hold the right arrow to fast forward the CD.