Test 40 (Att); Test 50 (Mute); Test 60 (Mode Sw); Test 70 (Unit Id Sw) - Yamaha PC9501N Service Manual

2-3-3-4. TEST 40 (ATT)

The screen shown below appears on the monitor, and judgment is made automatically.
>> 40: ATT TEST
ATT=-6dB
VSP(CH A) : 14.64 V --<OK>
VSP(CH B) : 14.75 V --<OK>
When the TEST 40 result is OK, the message shown below appears on the monitor.
------------------<TEST40:OK>
The test program proceeds to TEST 50 automatically after TEST 40.

2-3-3-5. TEST 50 (MUTE)

The screen shown below appears on the monitor, and judgment is made automatically.
>> 50: MUTE TEST
MUTE ON
VSP(CH A) : 0.00 V --<OK>
VSP(CH B) : 0.00 V --<OK>
When the TEST 50 result is OK, the message shown below appears on the monitor.
------------------<TEST50:OK>
The test program proceeds to TEST 60 automatically after TEST 50.

2-3-3-6. TEST 60 (MODE SW)

The screen shown below appears on the monitor.
>> 60: MODE SW TEST
MODE:STEREO
MODE:BRIDGE
Switch the MODE SW in the order of STEREO -> BRIDGE -> PARALLEL.
When the TEST 60 result is OK, the screen shown below appears on the monitor.
MODE:STEREO
MODE:BRIDGE
MODE:PARALLEL
------------------<TEST60:END>
The test program proceeds to TEST 70 automatically after TEST 60.

2-3-3-7. TEST 70 (UNIT ID SW)

The screen shown below appears on the monitor.
>> 70: UNIT ID SW TEST
-00000
-00001
Switch the AMP SW ID1, ID2, ID4, ID8 and ID16 to ON in order.
The screen shown below appears on the monitor.
>> 70: UNIT ID SW TEST
-00000
-00001
-00011
-00111
-01111
-11111
When the TEST 70 result is OK, the message shown below appears on the monitor.
------------------<TEST70:END>
The test program proceeds to TEST 80 automatically after TEST 70.
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