DTR-6.5
Confirmation of protection circuit
1. Confirmation of speaker relay
Confirm that the speaker relays turn ON approximately 5 seconds after the power switch is turned ON.
Confirm that the speaker relays turn OFF immediately after the power switch is turned OFF.
2. How to enter Test Mode
1. To enter a test mode (Test 1 to 4), when the unit is turned on,
hold down "CD" + "DISPLAY" buttons and then press "STANDBY/ON" button.
2. Press the respective designated buttons and make sure that your target mode starts.
Button Message to be shown
to be pressed on the Front display
Test-1 "DVD" "Test-1-00"
Test-2 "VIDEO 1" "Test-2-00"
Test-3 "VIDEO 2" "TUNER 82"
Test-4 "VIDEO 3" "Test-4-00"
To move to the next step, press the right arrow key.
When you enter Test-3, it is necessary to press this button once to see "Test-3-00" is shown.
To move to the previous step, press the left arrow key.
To exit, press "STANDBY/ON" button.
3.Confirmation of protection circuit
Check of Voltage detection
1. Enter Test-4 mode.
2. Press and release the right arrow key repeatedly until "TEST-4-21" is shown on the Front display.
3. See your unit automatically start to check each channel.
During the check, the message on the display is changing as follows:
Channel 1st Message 2nd Message
FL+ TEST-4-21 Protect OK
FR- TEST-4-22 Protect OK
C+ TEST-4-23 Protect OK
SL- TEST-4-24 Protect OK
SR+ TEST-4-25 Protect OK
SBL- TEST-4-26 Protect OK
SBR+ TEST-4-27 Protect OK
When the whole check is completed, "TEST-4-35" is shown.
4. Exit from the test mode.
Check of Current detection
1. Enter Test-4 mode.
2. Press and release the right arrow key repeatedly until "TEST-4-35" is shown on the Front display.
3. Connect a 3 ohm hollow resistor to a speaker terminal for each channel and
make sure that the speaker relay would not cut off.
4. Connect a 1.5 ohm hollow resistor to a speaker terminal for each channel and
make sure that the speaker relay would cut off.
5. Exit from the test mode.
Right arrow key
Left arrow key
Mode
Standby
Zone 2
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