Yamaha SilentPiano U1-Silent Instrukcja serwisowa - Strona 29
Przeglądaj online lub pobierz pdf Instrukcja serwisowa dla Instrument muzyczny Yamaha SilentPiano U1-Silent. Yamaha SilentPiano U1-Silent 49 stron. Owners manual
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•CONFIRM THE SYMPTOMS
In order to get more information or replacing parts about these models, Yamaha service desk reqires the correct model
name and serial number. (Sometimes electorical serial number and the sensor or tone generator version.) Refer to the
sticker on the bottom of the switch box under the keybed. (Fig. 10)
The sensor board and the tone generator version will be shown by using TEST MODE 2.
TEST MODE 2
Hold A#, C#, D# (2, 5, 7 keys) simultaneously and
turn on the power unitl it clicks, then release keys.
The number of notes show the versions.
Sensor version: An ascending scale in C major, starting on the lowest C.
Sensor Version: An descending scale in C major, starting on the highest C.
• GRAY-SCALE KEY SHUTTER
Shutter base is not glued and can be removed with a pliers
• DIP SWITCH ON MN BOARD
Silent pianos include a 4-bit DIP-switch on the MN board. During normal use the switch bits (SW1 to SW4) are
generally all set to OFF, but during servicing or maintenance you can use them to execute function checks as
described below. Please turn power OFF before changing the DIP-switch settings, and then turn power back ON to
activate the new settings.
SW1
Always OFF
SW2
SENSOR TEST MODE
SW2 + SW3
DEMO PEFORMANCE
SW4
Always OFF
Fig. 10
(Ex. "Do" and "Re" mean version 2)
(Ex. "Do" and "Si" mean version 2)
How to replace shutter and shutter base
Fig. 11
No use
Forces the silent piano into Sensor Test mode.
Use this feature if for some reason you are unable start up test mode
using the keyboard.
Starts demo playback.
Allows you to check the state of the tone-generator. (Operation is not
affected by the sensors.)
No use
Key Shutter (V7978300)
SILENT SB SERIES
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