Yamaha Tyros3 Service Manual page 106

Tyros3
<LINE-A>
The sine wave A3 note sound (about 441.4 Hz) is produced
with PAN at center.
<LINE-B>
The sine wave about 1378 Hz is produced with PAN at R
(repetition of sound production for 3 seconds and no sound
for 0.5 second).
Displayed Message:
０４７：ＤＧＡ（ＴＧ） Ｃｈｅｃｋ
０４７：ＤＧＡ（ＴＧ） Ｃｈｅｃｋ
−−
ＬＩＮＥ−Ａ
０４７：ＤＧＡ（ＴＧ） Ｃｈｅｃｋ
−−
ＬＩＮＥ−Ｂ
Supplement:
You may feel that TAB switches does not respond well when
you depress, because, the unit can not respond during a sound
is outputted from LINE-B (about 3 second period).
Sound is stopped when the test item is quit.
106
Test 48
Function: Keyboard Type check
Description:
Judges connected keyboard type and indicated keyboard
name.
Displayed Message:
Selected screen
Checking LINE-A
Supplement:
Checking LINE-B The keyboard name will be indicated in case of NG as well.
Test 49
Function: Touch check
Description:
Press the C3 key and press that until after touch will be
activated.
Indicates initial touch (velocity)/after touch value of 0 to 127
decimally on the LCD.
Result will be OK if MAX (sine wave C3 note sound is produced)
" MIN_(sine wave C4 note sound is produced) are detected.
０４８：ＫｅｙｂｏａｒｄＴｙｐｅ Ｃｈｅｃｋ
０４８：ＫｅｙｂｏａｒｄＴｙｐｅ Ｃｈｅｃｋ
ＯＫ
（ＦＳＸ６１）
０４８：ＫｅｙｂｏａｒｄＴｙｐｅ Ｃｈｅｃｋ
ＮＧ
（ＧＨ３）
Selected screen
In case of OK
In case of NG