If "check region code" is still displayed, using your remote, press disply, disc menu, play in that sequence quickly
Aiwa HT-DM150
Turn on the player (without a disc inserted)
Press ENTER
Press 8, 4, 2, 6, 9
Press ENTER again
Aiwa HT-DV50 / XD-DV50
Press ON/OFF on the player
Press and hold MENU, TOP MENU, OSD
After approx. 3 secs "Factory" is displayed
Release the keys
Turn on the player
Aiwa HT-DV90
Press DVD/CD
Press OPEN
Press C, 2, 5, 8, 0, C ("Testmode" is displayed) Onscreen display shows current RC
Press Up ("14 02" is displayed (02 is RC))
Press 1, 4, 0 and X (X = region; 0 = codefree)
Press ENTER
Press RETURN ("Testmode" is displayed)
Press C ("EEP CLR and EEP ERR" is displayed)
Insert a DVD
Press RETURN
Aiwa XD-520KS / XD-DV520 / XD-DV520 KS
Turn on the player (without a disc inserted)
Open the disc tray
Press MENU
Press 1, 6, 7
Current region is displayed
Press MUTE
"All" is dislayed
Turn the player off
Aiwa XD-AX10
You need an OneForAll remote (URC 7030)
Press "DVD" on the player
Press and hold MAGIC
Enter 0, 5, 3, 3
Press and hold MAGIC again
Enter 9, 9, 4
Press MAGIC
Press "1-5" and enter the following code
Repeat from step 4 until all 5 keys are programmed: Key 1: 189 // Key 2: 255 // Key 3: 095 // Key 4: 221 // Key 5: 079
Turn on the player (standby /without a disc inserted)
Press "1-5"
Player turns on
Press "1-5" again
Player turns off
Aiwa XD-DV170
Possibly only works with RC 4!
Plug the player in, but don't turn it on ("Off" is displayed)
Press and hold MENU
Press and hold TOP MENU
Press and hold POWER
Press all 3 buttons for 3 secs and then release them "Factory" is displayed
Turn on the player
Aiwa XD-DV290 / XD-DV370 / XR-DV370 KN
Press PAUSE
Press 3, 1, 4, 1, 5, 9
Press the button for the desired RC (0=codefree)
Press PAUSE
Turn the player off
Aiwa XD-DV480
Plug the player in and turn it on with the remote "No Disc" is displayed
Press PAUSE, 8, 9, 2 and 6 "CODE__" is displayed
Press 0 2x within 5 secs
Press PAUSE and POWER
Aiwa XD-DW1 / XD-DW5 / XD-DW7
Turn on the player
Insert a disc
Open the disc tray, take the disc out, close the disc tray, press STOP instantly
Press 8, 7, 2, 0 and >> For selection of a specific RC replace >> with Code (1-6). If this doesn't work, press 1 insted of 2 in step 4!
Aiwa XR-DV525
Unplug hte player
Press and hold DVD/CD
Plug the player in
Press FFW
"Factory" is displayed
Release the keys
Aiwa XD-DV520
Using the open button on the machine, open the disc tray. Make sure it's empty. Make sure you can see the dvd on your TV screen
Press MENU on remote (not top menu), you should see the on screen pictoral graphics on your TV screen
Using the remote, press 1, 6, 7
On the screen you should see over the top of the graphics "region
1-6" (I have not tried, but you might be able to set one region by
pressing remote number from 1 to 6)
Press MUTE button and next to "region 1-6" you should see "all"
Then use the remotes POWER OFF button and the dvd should close the (empty) tray
Restart the unit, put in a region disc and it should play it!
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