Kenwood Car Stereo System DPX 502U User Manual

CD/USB Receiver Firmware Update Guide  
Introduction  
Firmware Update Procedure  
This document describes the procedure and precautions for upgrading the  
CD/USB receiver firmware.  
If an error occurs while you are updating the firmware, the CD/USB receiver may  
become unusable. Be sure to read the following procedure and precautions  
carefully before updating the firmware.  
<Model group A&B>  
1. Connect theUpdate Mediato the CD/USB receiver.  
2. When the audio file starts playing orNO MUSICappears, press the [MENU]  
button to enter menu mode.  
3. Press the control knob up/down and selectF/W UP.  
4. Press the control knob for at least 1 second to start the update.  
“UPDATINGappears during update andCOMPLETEappears when complete. It  
takes approximately 40 seconds to load the updater.  
5. When audio file starts playing orNO MUSICappears once more, refer to  
“Checking the Firmware Versionabove and check that firmware versionVER  
2.72orVER 4.13is displayed.  
Target Models  
This updater cab be used to update the firmware of the CD/USB Receiver.  
Target models are grouped as follows by the difference of firmware version.  
<Model group A>  
KDC-MP435U, KDC-X491, KDC-W4737U, KDC-W4737UY, KDC-MP4036U,  
KDC-MP535U, KDC-X591, KDC-W6537U, KDC-W6537UY, KDC-MP5036U, DPX502,  
DPX502U, DPX502UY, DPX-MP5100U, DPX-U77, U525, KDC-MP7080U,  
KDC-MP8080U  
<Model group B>  
KDC-W4537UA, KDC-W4537UG, KDC-W4537UAY, KDC-W4537UGY, KDC-MP436U  
<Model group C>  
KDC-MP735U, KDC-X791, KDC-X891, KDC-W7537U, KDC-W7537UY, KDC-X7006U,  
KDC-X8006U, U727, KDC-MP9080U  
<Model group D>  
KDC-X991, KDC-W9537U, KDC-W9537UY, KDC-X9006U, U929  
<Model group C&D>  
1. Connect theUpdate Mediato the CD/USB receiver.  
2. When the audio file starts playing orNo Music Dataappears, press the [FNC]  
button to enter function control mode.  
3. Turn the control knob to displayMENUand then press.  
4. Press the control knob up/down to displayF/W Updateand then press.  
“UPDATING? NO/YESappears.  
5. Press the control knob to the right to selectYESand then press to start the  
update.  
“Updatingappears during update andCompleteappears when complete. It  
takes approximately 40 seconds to load the updater.  
6. When audio file starts playing orNo Music Dataappears once more, refer to  
“Checking the Firmware Versionabove and check that the firmware versionF/  
W Version: 2.72orF/W Version: 4.13is displayed.  
The update procedure differs for each model group.  
Target Firmware  
This updater can be used to update the following firmware versions:  
Precautions  
USB memory is recommended as the update media.  
Update cannot be performed to a CD media.  
When using an digital audio player to perform update, be sure to set the player  
to MSD (mass storage device) mode. Player that cannot be set to MSD mode  
cannot be used for update.  
Update may not be possible with some multicard reader and memory card  
combination.  
The firmware updater may be used by copying it to a device containing audio  
files.  
Be sure to park the vehicle in a safe place before updating. Keep the engine  
running in order to prevent battery from running out.  
Do not turn off the engine or CD/USB receiver power, or remove the USB  
device while updating. Update cannot be performed correctly and the CD/USB  
receiver may become unusable.  
<Model group A, B, C>  
Ver 02.71 or earlier  
<Model group D>  
Ver 04.10 or earlier  
Refer toChecking the Firmware Versionbelow for information on how to check  
the firmware version.  
By executing this updater, the firmware version will becomeVer 02.72for Model  
group A, B, C orVer 04.13for Model group D.  
Firmware Updater Information  
<Model group A, B, C>  
Program name (size): player01.rom (Approx. 820KB)  
<Model group D>  
Program name (size) : player02.rom (Approx. 980KB)  
Creating the Update Media  
Create the update media on your PC.  
1. Download player01.rom or player02.rom to your PC and copy it to the top  
directory of the USB device.  
Be sure to copy player01.rom/player02.rom to the top directory of the USB  
device. Update cannot be performed if it is copied inside a folder.  
Checking the Firmware Version  
<Model group A&B>  
1. Press the [SRC] and selectSTANDBY(Standby mode).  
2. Press the [MENU] button to enter the menu mode.  
3. Press the control knob up/down to select the menu itemF/W VER.  
4. Pressing the control knob left or right, displays the firmware version.  
<Model group C&D>  
1. Press the [SRC] and selectSTANDBY(Standby mode).  
2. Press the [FNC] button to enter the function control mode.  
3. Turn the control knob to displayMENUand then press.  
4. Turning the control knob and selectingF/W Versiondisplays the firmware  
version.  
CDUSB_R_FWverup_en  
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