Onkyo TX-SR674, Руководство по обслуживанию

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TX-SR674/674E/8467
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 7
C l e a r
Turn off
T e s t - 4 - 3 7
FM STEREO
Blinks
V e r . 0 . 5 0 / 0 5 1 3 1 a
<Ex.>
<Ex.>
T : 2 5 C / 7 7 F
C l e a r
Turn off
Output sensor
1. Press and hold down the CD button, then press the STANDBY/ON button while the unit is Power ON.
" Test - _ " is displayed only for 5 seconds.
2. Press the VIDEO 3 button while " Test - _ " is displayed.
The unit will be in the state of " Test-4-00 ".
3. Repeatedly press TONE
+
button until " Test-4-37 " is displayed.
4. At this time, confirm that the red characters of " FM STEREO " is displayed.
And, check relay RL6901 and RL6902 are turned off in 2 or 3 seconds.
5. Press the STANDBY/ON button.
[Procedure]
<Note>
No output. No input.
[When]
1. Exchange power transistors (Q6050 - Q6056, Q6060 - Q6066).
2. Exchange power amplifier PC board ass'y (NAAF-8911).
3. Exchange thermal sensor PC board ass'y (NAETC-8913).
Thermal sensor
1. Press and hold down the DISPLAY button, then press the STANDBY button when the unit is power ON.
" V e r . 0 . 5 0 / 0 5 1 3 1 a "
is displayed only for 2 seconds.
2. Press the TONE button while " Ver.0.50/05131a " is displayed.
3. Confirm that the displayed temperature is /-20 degree C from the ambient temperatures.
4. Press STANDBY/ON button.