OPERATION CHECK-3
CONTROL OF POWER SUPPLY (OUTPUT SENSOR AND THERMAL SENSOR)
TX-SR603X/603E/8360
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 the hold down the
CD
button , then press the
STANDBY/ON
button when the unit is Power ON.
" Test - _ "
is displays it only for
5
seconds.
2. Press the
VIDEO 3
button, while the character of
" Test - _ "
is displayed.
Unit will be in the state of "
Test-4-00
".
3. Repeatedly press
TONE
+
button until the character of
" Test-4-37 "
is displayed.
4. Adjusts
MASTER VOLUME
to Max. position.
At this time, check the character of
" FM STEREO "
displayed.
And, check relay RL6901 and RL6902 are
turned off
in 2 - 3 seconds.
5. Press the
STANDBY/ON
button.
[Procedure]
<Note>
No output. No input.
[When]
1. Exchange power transistors (Q6050 - Q6066).
2. Exchange power amplifier PC board ass'y (NAAF-8523).
3. Exchange thermal sensor PC board ass'y (NAETC-8526).
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 displays it only for
2
seconds.
2. Press the
TONE
button, while the character of
" Ver.0.50/05131a "
is displayed.
3. Check the displayed temperature is +/-20 C of the ambient temperatures.
4. Press
STANDBY/ON
button.
