Data Port Inspections; Connection Diagram Of The Rj-45 Cable; Setting; Initial Setting - Yamaha PC9501N Service Manual

2.

DATA PORT inspections

2-1. Preparation
Connect the serial port of Windows PC and the DATA PORT of the power amplifier via the communication converter as
shown below.
PC9501N
Note: Following communication converters have been proved for their operation.
Communication converter
RS-232/485 converter SI-30 (manufactured by LINEEYE)
RS-232/485 converter SI-35 (manufactured by LINEEYE)

Connection diagram of the RJ-45 cable

+ 5
– 4
GND 7 or 8
Converter

2-2. Setting

Start up the terminal software (Hyper Term, Tera Term, etc.) of the PC and make settings as follows.
Bit rate
Length
Stop bit
Parity
Communication control None
2-3. Inspection

2-3-1. Initial setting

Make connections described in "2-1. Preparation" section and start up the terminal software. Turn on the power of the power
amplifier and press the return key of the Windows PC keyboard twice quickly (at 0.5-second intervals) within 15 seconds.
Feed 1 kHz, 0 dBu sine wave to the input terminal, then check that the screen shown below appears on the monitor.
<<<<< PC-N Series Amplifier Test Program >>>>
- FIRMWARE VERSION: V*.**
- TEST PROGRAM VERSION: V*.**
• "V*.**" indicates the version number.
• If the screen shown above does not appear, turn off the power of the power amplifier and shut down the terminal software.
Then make settings shown above again.
2-3-2. REMOTE and MODEL ID inspections
Press the return key of the Windows PC keyboard once, then check that the REMOTE LED lights up. The screen shown
below appears on the monitor.
MODEL ID : 5 (PC9501N)
#
RS-485⇔RS-232C
Communication
RJ-45
Cable
38400 bps
8 bit
1 bit
None
RS-232C
converter
Straight cable
DIP SW setting
DIP SW: 1-5=ON
DIP SW: 1-3=ON, 4=OFF, 5=ON
RJ-45
Amplifier
PC9501N
Windows PC
Metal contact point face
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