Sony DNW-A75 Maintenance Manual page 124

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4-2. TAPE Maintenance Mode (M0)
4-2-4. RF CHECK Mode (C1)
C12 : REC CH CONDITION
C12:REC CH CONDITION
1
Auto Check (Push SET)
ch
RSLT
ch
RSLT
2
A1
B1
A5
B5
NA
NB
3
*
ALL
This menu displays the error condition for each channel in
three steps (GRN, YEL, and RED) when recording on the
tape recorded in Betacam SX format in the insert REC and
crash REC modes.
In the insert REC mode, checks using each PB signal from
the advance PB heads (A1, A5, B1, and B5) by tracking.
In the crash REC mode, checks using each PB signal from
the confidence PB heads (CNFA and CNFB).
m
. During normal operation, the tape is played back by non-
tracking. Therefore, the condition for each channel
cannot be checked using a CH CONDITION indicator.
. If abnormality exists in the servo system, this menu does
not function properly.
4-34
Description of superimposed display
1 The display in this line changes. Each display and its
meaning are described below.
Auto Check (Push SET) : Press the SET button to
Insert Check Tape :
Auto Tracking... :
Auto Checking... :
Auto Check Complete : Check is completed.
Auto Check Failure :
Condition NG :
2 To check the condition for single channel, select a
channel name using an * mark.
After the check of the channel is completed, the
condition (GRN, YEL, or RED) will be displayed on
the right of the channel name.
Even if the check fails, "RED" will be displayed.
m
. "RSLT" indicates the result.
. "NA" indicates CNFA.
. "NB" indicates CNFB.
3 To check the conditions for all channels, select "ALL"
using the * mark.
During the check, the condition in each channel is
displayed in area 2.
After the check for all channels is completed, "GRN"
is also displayed on the right of "ALL" when the
conditions for all channels are GRN. If there is at least
one channel whose condition is YEL or RED, the
worst condition is displayed on the right of "ALL".
initiate the check.
Insert a tape for check.
Tracking is in an optimiza-
tion process.
Check is in progress.
Check failure
Error condition defect
DNW-A75/A75P

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