6-18
2. Simple Diagnosis of DV
Possible causes
Defective IC102 (1394Link & DVcodec)/
IC108 (1394PHY), improper connection between IC102 /
IC108, defective soldering, defective power supply, etc.
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.
Defective IC102 (1394Link & DVcodec), defective
soldering, defective power supply, etc.
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.
Recording cannot be performed for a copy-protected
source.
An audio signal with 44.1-kHz sampling frequency is
muted.
Defective IC101 (DV specific VideoEncoder), defective
soldering, defective power supply, etc.
Symptoms
No operation for
DV input
No picture nor
sound for DV
input
DV input
recording
impossible
No sound for
DV input
No picture for
DV input
1
2
1
2
1
1
1
Location in the
Debug Screen
DV1
DV1
DV8
DV0
DV0
DVqa
DV1
Items to be Checked, and Conditions
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)
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.
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.
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.
Check CGMS:
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.
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.
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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