Sony SRW-1 Operation Manual page 93

Audio
Problem
• No sound.
• AUDIO PLL UNLOCK
appears.
Cannot input AES/EBU.
• Noise.
• "PB FREQ MISMATCH"
appears.
• No audio input to SRPC-
1 analog input.
• "NO EXT SDI INPUT"
appears.
No analog audio input.
Want to output a test
signal.
Test signal is not output.
Timecode
Problem
Character timecode values
of video monitor output are
wrong. (23.98 is set, but
frames counted to 29, for
example.)
• Frequent timecode
interpolation.
• "PB FREQ MISMATCH"
appears.
Cause
The display of the SDI or AES/EBU
meter is flashing, and the input is
invalid.
Mode switching.
Non Audio setting.
Volume is turned down.
AES/EBU is not locked to the video.
No 48kHz input.
Not enabled.
Wrong sampling frequency.
Playback at wrong frequency.
SYSTEM >FORMAT >SELECT FPS
is set to "ON" or "VTR".
No HD SDI signal input.
Electret condenser microphone is
not powered on.
This can be done with menu
settings.
Test signals are turned off when the
unit is powered off and on.
Cause
Monitor output switch is set to AUTO
(pulldown output).
The tape playback section was
recorded at a different frequency.
Steps to take
Set up the input device to output SDI or AES/EBU audio.
To prevent noise and damage to audio monitor equipment,
audio is turned off when switching modes.
No audio is output when Non Audio mode is selected. A
white box in the meter display indicates "Non Audio".
When there is no sound from the headphones, even though
the meters are moving, check to be sure that the volume is
set to an appropriate level.
Lock the equipment on the AES/EBU input side to the video
of the SRW-1.
Input 48kHz audio to the AES/EBU input.
Set up the input device to enable AES/EBU.
Set the matched 1.000/1.000 and 1.000/1.001 formats.
Noise occurs when the playback frequency is different from
the recorded frequency, because of the difference in the
number of audio samples. Switch the playback format to
match the recorded frequency.
Audio is not correctly recorded during SR Motion recording.
Input the correct HD SDI signal.
Set to +48V ON (except for internal battery powered types).
Select 1kHz under SYSTEM >TEST SG > AUDIO.
Select the test signal again.
Steps to take
By default the monitor output is set to AUTO (pulldown
mode), so that character timecode is also displayed as
pulldown timecode. To change this to actual line timecode
display, set VIDEO >PD(MON) >OUTPUT to THRU.
Interpolation is performed periodically for timecode
recorded at a different frequency. The recorded frequency
can be displayed as the PB format at the bottom of the
control panel display by pressing the FUNC+HOME
buttons.
93
Troubleshooting