ONKYO HTR8230
Manual de Servicio

HT-R8230 OPERATION CHECK-1
DC VOLTAGE DETECTION PROTECTORS
[NOTE1] Limit time to apply voltage is 0.5 to 1.0 seconds each channel. When protection operation does not occur at once, try several times. [NOTE2] Don't connect speakers or any load. Don't short speaker terminals. 1. Set the unit to test mode " Test-1-00 " . 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON.

Te st - _
1-2. Press the DVD button, while the display of " Test - _ " has come out. Unit will be in the state of " Test-1-00 ".

Te st - 1-00
2. Apply DC voltage (+1.5 to +3V) to MULTI CHANNEL (FL, FR, SL, SR, C, SW) terminal, each channel. 3. Check that " Protect " is display come out. 4. Apply DC voltage (-1.5 to -3V) to MULTI CHANNEL (FL, FR, SL, SR, C, SW) terminal, each channel. 5. Check that " Protect " is display come out. 6. Press the STANDBY/ON button.
Disappears

Clear

CURRENT DETECTION PROTECTORS
[NOTE] In the state of test mode" Test-4-29 ", the pulse waveform output for checking from speaker terminal automatically. Therefore, oscllator is unnecessary. 1. Set the unit to test mode " Test-4-29 " 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power ON.

Te st - _
1-2. Press the VIDEO 3 button, while the display of " Test - _ " has come out. Unit will be in the state of " Test-4-00 ".

Te st - 4- 00
1-3. Repeat and press SPEAKERS B button until the display of " Test-4-29 " comes out.

Te st - 4-29
2. Connect the lord resister (3 ohms) to the speaker terminals. 3. Check the not displayed " Protect " and speaker relays not turn OFF. 4. Check the each speaker terminals. 5. Connect the lord resister (1.5 ohms) to the speaker terminals. 6. Check the displayed " Protect " and speaker relays turn OFF immediately. 7. Check the each speaker terminals. 8. Press the STANDBY/ON button.
Disappears

C lear