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3.7.11 Error Rate Monitoring
The error rate-monitoring screen is displayed when the PB EQ
is adjusted or the error rate is measured. The screen shows the
error rate every second during PB EQ adjustment. With the er-
ror rate measurement, it shows the error rate measurement
result after about 20 seconds of measurement.
1
Error rate display window
Shows the error rate per video/audio or CH-1/CH-2 as well
as the total error rate.
2
Sync block counter display window
Shows the amount of sync blocks played by the head as a
percentage. When it reaches 100%, “OK” is displayed and
a graph is displayed bule. The error rates are measured when
this display shows “OK”.
3
Error rate measurement status display window
Depending on the load to the PC, “CH1 Reset” or “CH2
Reset” may be displayed frequently. In such a case, leave
the PC idle (without operating the mouse, etc.). The error
rates are measured when “Reset” is not displayed (when
“CH1 Detect” or “CH2 Detect” is displayed).
3.7.12 ROM Tools
This section describes the seven functions of the ROM Tools in
processing the EEPROM data.
1
File reading
Read the ROM data saved in the PC files. It is provided as
standard with the adjustment software, for use as initial data.
When the PC files are read, the file names are displayed in
the ROM file display window.
2
File saving
The ROM data read by the ROM Tools can be saved in a PC
file. This function is used for temporary backup of ROM data
before adjustment. If the adjustment fails and the data be-
comes erroneous, use the backup to restore the original data.
3
Data read from VCR
The ROM data in the VCR can be read. The ROM file display
window shows “Current VCR data” in this case.
4
Data write in VCR
The ROM data read by the ROM Tools can be written in the
VCR. When the initial data is written, it is required to re-
adjust the DV circuit and re-set the IEEE1394 ID (see 3.7.13).
5
Data comparison
Note: When the ROM data is written in the VCR, be sure
to turn the main unit and adjustment software OFF
once.
The ROM data read by the ROM Tools is compared with
data contained in a PC file or with the VCR data, and any
differences are displayed in red characters. “Comp. value”
shows the data used in the comparison. It shows “(“ when
the comparison data does not exist. To cancel comparsion,
clik
5
'.
6
Data editing
The ROM data read by the ROM Tools can be edited on a
per-address basis. To edit data, click the [New value] of the
required address data. To write the data in the VCR, click the
“V” marking. To cancel editting, click the “
” marking.
7
Data output
The ROM data read by the ROM Tools can be output at a
printer or as a text file.
Fig. 3-7-12 (Error Rate Monitoring Screen)
Fig. 3-7-14
3-22
Fig. 3-7-13 (Error Rate Measurment)
(1) Error Rate Monitoring
The following screen appears when [
View] under the [Error
Rate Monitor] tab is clicked.
1
2
3
(2) Error Rate Measurement
The following screen appears when [
View] under the [Error
Rate
Check] tab is clcked. To start the measurement, click
[Start] button. After a while the measurement result is dis-
played “
1
”.
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