Yamaha DP-U50 Manual de serviço - Página 7
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G Starting DIAG
While the opening message appearing at the power ON is on display, press the "DSP" key 3 times; quickly at
the first and second times and keep pressing it at the third time until the DIAG function is started.
G Display when DIAG function is started
First, "DIAG" appears on the FL display of the main unit, followed by the version of the
microcomputer for 1 second (e.g., 1.000f), the checksum of the microcomputer for 2 seconds
(e.g., 7720) and finally the DIAG menu (e.g., 1: ALL). Also, all the function LED segments light
up.
DIAG started
When there is no protection function history (*1)
D I A G
TE
L 13942296513
Version of the microcomputer
1 . 0 0 0 f
Checksum of microcomputer
7 7 2 0
www
DIAG menu
.
1 :
A L L
http://www.xiaoyu163.com
Some seconds
later
1 second
later
2 seconds
later
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
(*1) When there is a history of the protection function
recorded, the type of the last protection function in the
record appears.
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
m
DP-U50
9 9
9 9
6