Connection - Yamaha NS-BP300 Service Manual

● Connection
* Disconnect the power cable of this unit from the AC outlet.
1. Set the switch (SW301) of RS232C conversion adaptor to the "FLASH UCOM" position. (Fig. 1)
2. Connect the writing port (CB104 of FUNCTION P.C.B.) located on the rear panel of this unit to the serial port (RS232C)
of the PC with RS232C cross cable, RS232C conversion adaptor and flexible flat cable as shown below. (Fig. 3)
Note: Do not use the RS232C conversion adaptor (Part No.: WR492800), which is used for updating BD-940/
DVD-840/CD-640, otherwise the update will not proceed.
PC
Serial port (RS232C)
RS232C cross cable
RS232C conversion adaptor
SW301
FLASH
OTHER
UCOM
Fig. 1
This unit
Writing port
(FUNCTION P.C.B. CB104)
Flexible flat cable (9P)
R-840/NS-BP300
21