Yamaha TF1, Service Manual

Page: 148 / 372

TF5/TF3/TF1
148
HAAD22 AXR0[7](A6) of DSP#4(IC401) –>
OMNI1-8(11 th ) of CN705
SD_HA2(6
th
) of CN702 –>
AXR2[1](B7) of DSP#2(IC201)
HAAD31 AXR0[8](B6) of DSP#4(IC401) –>
OMNI9-16(13 th ) of CN705
SD_HA3(6
th
) of CN703 –>
AXR2[2](A7) of DSP#1(IC101)
HAAD32 AXR0[8](B6) of DSP#4(IC401) –>
OMNI9-16(13
th
) of CN705
SD_HA3(6 th ) of CN703 –>
AXR2[2](A7) of DSP#2(IC201)
HAAD41 AXR0[8](B6) of DSP#4(IC401) –>
OMNI9-16(13
th
) of CN705
SD_HA4(6 th ) of CN704 –>
AXR2[3](D8) of DSP#1(IC101)
HAAD42 AXR0[8](B6) of DSP#4(IC401) –>
OMNI9-16(13 th ) of CN705
SD_HA4(6 th ) of CN704 –>
AXR2[3](D8) of DSP#2(IC201)
AMUTE /MUTEOUT[4](72
nd
) of CPLD(IC802) –>
/A-MUTE(2 nd ) of CN705
7-7-2. ANA_UVLO
* Implemented in the MAINCOM circuit board test
[Contents]
Inspect the connection between the UVLO signal from PS
circuit board.
Connect the 10
th
pin of CN901 or TL901 to GND for a
moment and judge by detecting analog outputs are muted.
[Procedure]
<GUI>
Set [UVLO] to LOW level.
ABORT
Since popup dialog as shown in the above fi gure is displayed
on the screen, connect the 10 th pin of CN901 or TL901 to
GND.
If operation is detected, popup dialog will be closed
automatically.
When popup dialog does not close in spite of having operated
it, it failed in the inspection.
Push the
[ABORT]
button to close the popup dialog.
7-8. LCD
The example of a screen of the product test.
7-8-1. LCD
[Contents]
Inspect the LCD by checking the test pattern displayed on it.
[Procedure]
<GUI>
Check whether eight kinds of test patterns mentioned later
are displays as speci
fi cation. If a
[TOUCH AND TURN]
knob is turned clockwise, the next screen will be displayed,
and it is displayed that the previous screen turns a
[TOUCH
AND TURN]
knob counterclockwise. Or if the right half of
an LCD screen is touched, it will go to the next screen, and if
a left half is touched, it can also return to a precious screen.
<TEST PATTERN>
1) Out frame 1dot
2) H character