Yamaha TYROS 2 Service Manual page 84

Tyros2
49 049:Pedal 3 Chk
54 054:MIDI Chk
55 055:Loop Send/Return Chk
56 056:Sub Out Chk
57 057:VIDEO OUT NTSC RGB
58 058:VIDEO OUT PAL RGB
59 059:RGB Chk
84
Checks the pedal 3.
When the test is executed, the LCD shows "No Pedal".
Connect the FC-7 to the [ASSIGNABLE FOOT PEDAL] jack (3) and
execute the test with the pedal completely released.
Confirm that the LCD shows "Pedal 3 Up" at that time.
When the pedal is depressed, confirm that the LCD shows "Pedal 3 Down"
and the note of C3 sounds.
When the pedal is released, confirm that the LCD shows "Pedal 3 Out"
and the note of G3 sounds.
Disconnect the pedal from the jack and confirm that the LCD shows "OK"
and the note of C4 sounds.
Checks the MIDI.
Connect 'IN' and 'OUT' of the [MIDI A] jack, 'IN' and 'OUT' of the [MIDI B]
jack respectively via a MIDI cable and execute the test.
Confirm that the LCD shows "MIDI-A Check OK" and the note of C3 sounds.
Also, confirm that the LCD shows "MIDI-B Check OK" and the note of C4
sounds.
Checks the Loop Send/Return.
Connect a level meter to the [LINE OUT] jack (MAIN L/L+R, R) with a load
of 10k ohm and set the [MASTER VOLUME] knob to maximum.
At that time, confirm that the LCD shows "LOOP SEND NOT Inserted"
and the level meter reads the following value.
L+L/R: +9.5 2dBu
Then, connect a plug to the [AUX OUT/ LOOP SEND L/L+R] jack.
At that time, confirm that the LCD shows "LOOP SEND Inserted" and the
level meter reads the following value.
L+L/R: -75.0dBu or less
Detects a plug insertion at the Sub Out
When executing the test, confirm that the LCD shows "No Sub1,No SUB2".
Insert a plug into the [LINE OUT] jack (SUB1) and confirm that the note of
C3 sounds and the LCD shows "Sub1 In".
Disconnect the plug from the [LINE OUT] jack (SUB1) and confirm that the
note of C4 sounds and the LCD shows "Sub1 OK".
Insert a plug into the [LINE OUT] jack (SUB2) and confirm that the note of
C3 sounds and the LCD shows "Sub2 In".
Disconnect the plug from the [LINE OUT] jack (SUB2) and confirm that the
note of C4 sounds and the LCD shows "OK".
Checks VIDEO OUT(NTSC RGB).
Connect the video input jack of a TV set and the [VIDEO OUT] jack of the
product, and execute the test.
Confirm the red, blue and green bars are displayed on the monitor.
Checks VIDEO OUT(PAL RGB).
Connect the video input jack of a TV set and the [VIDEO OUT] jack of the
product, and execute the test.
Confirm the red, blue and green bars are displayed on the monitor.
Checks RGB OUT.
Connect the video input jack of a RGB monitor and the [RGB OUT] jack of
the product, and execute the test.
Confirm the red, blue and green bars are displayed on the monitor.
MO
TR
OWNE
BEDIE
MODE