Rf Check Mode (C1) - Sony DNW-A75 Maintenance Manual

4-2. TAPE Maintenance Mode (M0)

4-2-4. RF CHECK Mode (C1)

4-2-4. RF CHECK Mode (C1)
The C1 : RF CHECK mode is used to check the PB RF
system based on an Betacam SX format.
Two menus are available.
C1 : RF CHECK
C11 : PB CH CONDITION
C12 : REC CH CONDITION
Menu Tree of RF System Check Mode
C11 : PB CH CONDITION
RF CHECK MODE
C11:PB CH CONDITION
1
Auto Check (Push SET)
ch RSLT ch RSLT
A1 B1
2 A2 B2
A5 B5
A6 B6
NA NB
3
*
ALL
This menu displays the error condition for each channel in
three steps (GRN, YEL, and RED) when a tape recorded in
Betacam SX format is played back by tracking.
C11 checks using each PB signal from the PB heads (A1,
A2, A5, A6, B1, B2, B5, B6, CNFA, and CNFB channels).
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.
4-30
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 SR5-1 :
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 at a time,
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 an alignment tape.
Tracking is in an optimiza-
tion process.
Check is in progress.
Check failure
Error condition defect
DNW-A75/A75P