Onkyo HT-R550, Руководство по обслуживанию

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TX-SR505/505E
OPERATION CHECK-3
CONTROL OF POWER SUPPLY (OUTPUT SENSOR AND THERMAL SENSOR)
T e s t - _
T e s t - 4 - 0 0
T e s t - 4 - 3 6
C l e a r
Turn off
Blinks
V e r . 1 . 0 1 / 0 7 2 1 9 A
<Ex.>
<Ex.>
T : 2 5 C / 7 7 F
C l e a r
Turn off
T e s t - 4 - 3 6
FM STEREO
[When]
1. Exchange power transistors (Q6050 - Q6056, Q6060 - Q6066).
2. Exchange power amplifier PC board ass'y (NAAF-8779).
3. Exchange thermal sensor PC board ass'y (NAETC-8781).
<Note>
No output. No input.
[Procedure]
Output sensor
1. Press and hold down CD button, then press STANDBY/ON button while the unit is powered on.
" Test - _ " is displayed only for 5 seconds.
2. Press AUX button while " Test - _ " is displayed.
The unit will be in the state of " Test-4-00 ".
3. Repeatedly press + (TONE) button until " Test-4-36 " is displayed.
4. At this time, confirm that the red characters of " FM STEREO " is displayed.
And, confirm that the relays RL6901 and RL6902 are turned off in 2 or 3 seconds.
5. Press + (TONE) button and confirm that the red characters of " FM STEREO " is displayed.
And, confirm that the relays RL6901 and RL6902 are turned off in 2 or 3 seconds.
6. Press STANDBY/ON button.
Thermal sensor
1. Press and hold down DISPLAY button, then press STANDBY/ON button when the unit is powered on.
The microprocessor version will be displayed for 3 seconds.
2. Press TONE button while the version is displayed.
3. Confirm that the displayed temperature is within +/-20 C from the ambient temperature.
4. Press STANDBY/ON button.
T e s t - 4 - 3 7
FM STEREO