Yamaha DRX-1, Руководство по обслуживанию

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DRX-1
DRX-1
18
2.4 Trade Mode
UNPLUG THE RECORDER
IF TRADE MODE OFF
PRESS 2 KEYS
SIMULTANEOUSLY
PLUG THE RECORDER
RECORDER IS IN TRADE MODE
WHEN PRESSING FRONT
KEYS, THE RECORDER
DOESN'T RESPOND
<STOP> + <OPEN/CLOSE>
UNPLUG THE RECORDER
IF TRADE MODE ON
PRESS 2 KEYS
SIMULTANEOUSLY
PLUG THE RECORDER
RECORDER IS IN NORMAL MODE
WHEN PRESSING FRONT
KEYS, THE RECORDER
WILL RESPOND
<STOP> + <OPEN/CLOSE>
Fig. 4
2.5 Virgin Mode
If you want that the recorder starts up in Virgin mode,
follow this procedure:
• Unplug the recorder
• plug the recorder again while you keep the STAND BY/
ON key pressed
• the set starts up in Virgin mode.
3. Menu and Command Mode Interface
3.1 Nuclei Numeration
Each nucleus has a unique number of four digits. This
number is the input of the command mode.
[ XX YY ]
Nucleus number
Nucleus group number
Fig. 5
The following groups are defined:
Group number Group name
0 Basic / S cripts
1 Host decoder (Sti5508 and memory)
2 Audio / video encoder (DVDR only)
3 VSM (DVDR only)
4 NVRAM
5 Front Panel
6 Basic Engine
7 Analogue board (DVDR only)
8 DVIO (DVDR only)
9 Loop nuclei (DVDR only)
10 Library sub nuclei (I2C nuclei)
11 User interface
12 Furore (SACD only)
13 DAC (SACD only)
14 Miscellaneous
3.2 Error Handling
Each nucleus returns an error code. This code contains
six numerals, which means:
[ XX YY ZZ ]
Error code
Nucleus number
Nucleus group number
Fig. 6
The nucleus group numbers and nucleus numbers are the
same as above.
3.3 Command Mode Interface
Set-Up Physical Interface Components
Hardware required:
• Service PC
• one free COM port on the Service PC
• special cable to connect DVD recorder to Service PC
The service PC must have a terminal emulation program
(e.g. OS2 WarpTerminal or Procomm) installed and must
have a free COM port (e.g. COM1). Activate the terminal
emulation program and check that the port settings for the
free COM port are: 19200 bps, 8 data bits, no parity, 1 stop
bit and no flow control. The free COM port must be
connected via a special cable to the RS232 port of the
DVD recorder. This special cable will also connect the test
pin, which is available on the connector, to ground (i.e.
activate test pin).
Code number of PC interface cable: 3122 785 90017
Activation
Plug the recorder to the mains and the following text will
appear on the screen of the terminal (program):
DVD Video Recorder Diagnostic Software version 84
Basic SDRAM Data bus test passed
Basic SDRAM Address bus test passed
Basic SDRAM Device test passed
(M) enu, (C) ommand or (S) 2B-interface? [M] : @ C
DD:>
Fig. 7
The first line indicates that the Diagnostic software has
been activated and contains the version number. The next
l i n e s a r e t h e s u c c e s s f u l r e s u l t o f t h e S D R A M
interconnection test and the basic SDRAM test. The last
line allows the user to choose between the three possible
interface forms. If pressing C has made a choice for
Command Interface, the prompt ("DD>") will appear. The
diagnostic software is now ready to receive commands.
The commands that can be given are the numbers of the
nuclei.