The remote control displays "standby" but the buttons do not respond (except for 5, 9, and SEL) - how to restore the connection?

Q: The remote control displays "standby" but the buttons do not respond (except for 5, 9, and SEL) - how to restore the connection?

This symptom indicates a radio communication (RF) failure between your remote control and the DM 90.2 speaker . Here’s why and how to fix it: Why this happens: "standby" on the remote control = the device is in standby mode (normal) OK and other buttons do not respond = the remote control is not communicating in RF with the DM 90.2 Buttons 5 and 9 work = they change the language of the remote control itself , not that of the speaker "dm90#" with SEL = you see the system identifier, but RF pairing is not established Solution - Re-pairing the remote control: Make sure the DM 90.2 is on (check the green light on the speaker, not on the remote control) On the remote control, press EXIT + M simultaneously Select "RF learn" with the arrows and confirm with OK Choose "new device" Completely turn off the DM 90.2 (unplug it from the power source) for at least 1 minute Plug back in and turn on the DM 90.2 Wait for the message "Installation successful" on the remote control Assign a name to the system (e.g., "living room") and confirm After this procedure, the OK, Volume, Mute, Power buttons, and directional arrows should become operational again. If the problem persists, reduce the distance between the remote control and the speaker to less than 10 meters and try again.

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Accepted Answer

This symptom indicates a radio communication (RF) failure between your remote control and the DM 90.2 speaker. Here’s why and how to fix it:

Why this happens:

"standby" on the remote control = the device is in standby mode (normal)
OK and other buttons do not respond = the remote control is not communicating in RF with the DM 90.2
Buttons 5 and 9 work = they change the language of the remote control itself, not that of the speaker
"dm90#" with SEL = you see the system identifier, but RF pairing is not established

Solution - Re-pairing the remote control:

Make sure the DM 90.2 is on (check the green light on the speaker, not on the remote control)
On the remote control, press EXIT + M simultaneously
Select "RF learn" with the arrows and confirm with OK
Choose "new device"
Completely turn off the DM 90.2 (unplug it from the power source) for at least 1 minute
Plug back in and turn on the DM 90.2
Wait for the message "Installation successful" on the remote control
Assign a name to the system (e.g., "living room") and confirm

After this procedure, the OK, Volume, Mute, Power buttons, and directional arrows should become operational again. If the problem persists, reduce the distance between the remote control and the speaker to less than 10 meters and try again.

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