Pioneer DVR-A03 Service Manual page 43

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6.1 TEST MODE
6.1.1 Sending Test Mode Commands
To operate this unit directly in Test mode, connect the COM port of the personal computer with CN301 in the DVD ATAPI MAIN Assy via
interface.
To send commands, use RS-232C general-purpose communication software (e.g. WTERM, CCT). Communication protocols are as follows:
Baud rate : 38400 (fixed)
Character length : 8 bit
Stop bit : 1 bit
Parity : none
Flow control : none
Others : LSB 1st
A
DVR ATAPI MAIN ASSY
TE
L 13942296513
6.1.2 Disc Selection
To set the 4.7GB DVR mode, enter the code "5DT" from the communication software.
This operation calls as "Selects 4.7R mode".
It becomes each disc mode when entering the following codes.
Enter code
"0DT" : "Selects CD-ROM mode"
"1DT" : "Selects CD-R mode"
"2DT" : "Selects CD-RW mode"
"3DT" : "Selects DVD-ROM (Single) mode"
"4DT" : "Selects DVD-ROM (Dual) mode"
"7DT" : "Selects DVD-RWmode"
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SIDE B
CN301
Fig.2 Connection diagram of the personal computer
Mode
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COM
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Communication
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Personal
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DVR-A03
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