Yamaha DP-U50 Service Manual page 13

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5. V-MAX
Sets the main volume to 0dB.
6. V-MID60
Set the main volume to -20dB.
7. V-MID55
Sets the main volume to -25dB.
8. V-MID52
Sets the main volume to -28dB.
9. V-MID49
Sets the main volume to -31dB.
10. V-MID29
Sets the main volume to -51dB.
11. V-MID1
Sets the main volume to -79dB.
12. V-MIN
Sets the main volume to -80dB.
13. RETURN
Returns the menu to the main menu (5. AD).
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6. USB
(USB loop back test)
1. START [Remote control code : 7B—1C (A)]
Starts the loop back of USB.
2. STOP [Remote control code : 7B—1D (B)]
Stops the loop back of USB.
3. RETURN
Returns the menu to the main menu (6. USB).
* This menu is used for the factory inspection before
shipping.
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7. INIT
(Memory initialization)
1. MEMORY (Memory reset reservation)
Reserves the backup RAM to be reset to the factory
setting before shipping.
Actual initialization is executed when the power is turned
on with the DIAG function cancelled.
2. CANCEL (Cancellation of memory reset reservation)
Makes the memory reset reservation invalid. RAM
initialization is not executed.
3. RETURN
Returns the menu to the main menu (7. INIT).
8. VER
(Version information)
1. SHV
Displays the version information of the microcomputer
(IC436).
The final alphabet indicates the version of the boot area. If
the rewrite version is different, it is not transmitted
properly.
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2. EGAV
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Displays the version information of the gate array (IC475:
LC27287B).
3. ChckSum
Displays the checksum information of the microcomputer
(IC436).
4. RETURN
Returns the menu to the main menu (8.VER).
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