9
1
2
3
4
1
2
3
4
C
D
F
A
B
E
DVR-541H-S
2. Simple Diagnosis of DV
Symptoms
Location in the
Debug Screen
Items to be Checked, and Conditions
Possible causes
DV
1
DV
1
2
1
1
1
2
1
Check the initDV indication:
OK:
Initialization of DV related LSI (IC102, IC108) appropriately completed.
NG:
Initialization of DV related LSI (IC102, IC108) has not been completed
properly. Defective communication with DV related LSI (IC102, IC108)
and Host u-com (IC1001)
Defective IC102(
1394Link & DVcodec
)/ IC108(1394PHY),
improper connection between IC102 / IC108, defective
soldering, defective power supply, etc.
Check the number of DV devices when one DV device is connected to the
recorder:
01
: The connected DV device is correctly identified.
Other than 01
: The connected DV device is not correctly identified.
Defective DV terminals, improper connection of the
DV-terminal board, defective IC108(1394PHY), defective
cables, an IEEE 1394 device other than the DV device
connected.
No picture nor sound for
DV input
No operation for DV input
DV
8
Check of DV decoding when the recorder channel is set to DV:
Yes:
The recorder is in the process of a DV input operation
No:
The recorder is not executing a DV input operation
Defective IC102(1394Link & DVcodec), defective
soldering, defective power supply, etc.
DV
0
Check DEC:
525-60:
An NTSC DV signal is input from the DV device.
625-50:
A PAL DV signal is input from the DV device.
No:
No DV signal is input from the DV device.
Defective DV terminals, improper connection of the
DV-terminal board, defective source device
defective IC102(1394Link & DVcodec), IC108(1394PHY)
Note:
As to a model having the Input Line System
setting, if the setting and the actual input signal
system do not match, no picture appears.
DV input recording
impossible
DV
0
Check CGMS:
Recording cannot be performed for a copy-protected
source.
No picture for DV input
DV
1
Check the initVE indication:
OK:
Initialization of DV specific VideoEncoder (IC101) appropriately completed.
NG:
Defective communication with DV specific VideoEncoder (IC101) and
HOST u-com (IC1001).
Initialization of DV specific VideoEncoder (IC101) has not been
completed properly.
Defective IC101(
DV specific VideoEncoder
), defective
soldering, defective power supply, etc.
1
No sound for DV input
DV
-
Check SF:
32 khz: An audio signal with 32-kHz sampling frequency is being input.
48 khz: An audio signal with 48-kHz sampling frequency is being input.
44 khz: An audio signal with 44.1-kHz sampling frequency is being input.
An audio signal with 44.1-kHz sampling frequency is
muted.
