Yamaha T3n Service Manual page 41

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5. Data port inspection
5-1. Preparation
5-1-1. Connection
Connect the serial port of Windows PC and the DATA PORT of the power amplifier via the communication converter as shown
below.
Windows PC
Note:
• Operation of the communication converters listed below has already been confirmed.
Communication converter
RS-232/485 converter SI-30 (manufactured by LINEEYE)
RS-232/485 converter SI-35 (manufactured by LINEEYE)
Connection diagram of RJ-45 cable
5-2. Setting
Start up the terminal software (Hyper Term, Tera Term, etc.) of the PC and make settings as follows.
Bit rate
Data length
Stop bit
Parity
Communication control
5-3. Inspections
5-3-1. Initial setting
Set the GAIN switch at the 26 dB position.
Make connections as described under 5-1-1 connection and with the terminal software started up, turn on the power to the
amplifier and press twice the return key of the Windows PC keyboard within 15 seconds.
Input 1 kHz, 0 dB sine wave to the input terminal and check that the monitor screen appears as shown below.
<<<<< PC-N Series Amplifier Test Program >>>>
- FIRMWARE VERSION:V*.**
- TEST PROGRAM VERSION:V*.**
5-3-2. REMOTE, MODEL ID check
Using the keyboard of Windows PC, press the return key once and check that REMOTE LED lights up. The monitor screen
appears as shown below (for T5n).
MODEL ID:10(T5n)[YAC526]
#
MODEL ID: 10 (T5n), MODEL ID: 11 (T4n), MODEL ID: 12 (T3n)
RS-232C
Straight cable
- 4
+ 5
GND 7 or 8
← Converter
38400 bps
8 bit
1 bit
None
None
RS-232C ⇔ RS-485
RJ-45
Cable
Communication
converter
DIP SW state
DIP SW: 1-5=ON
DIP SW: 1-3=ON, 4=OFF, 5=ON
RJ-45 Metal contact point face
Amplifier →
*.**: Version No.
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