Yamaha AP-U70 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).

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.

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.

2. EGAV

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).

AP-U70