9-23
DVW-250/250P
9-5. RF System Adjustment
9-5-14. Manual Adjustment
Perform the following manual settings of parameters when
the specifications are not met in the Channel Condition
Check (Sections 9-5-10 to 9-5-12).
Before this adjustment, Save the adjustment data
(Refer to Section 9-5-13).
Method of parameter changing
(Change the parameter to minimize the error flags.)
1.
On the DIAG menu, open the PAGE of the channel
concerned.
Example)
PAGE : <TEST><RF><A/Ech>
2.
Select the item using the UP/DOWN button, and push
the SET button.
3.
Change the data using the UP/DOWN button, and
push the SET button.
Perform the following adjustment when section “9-
5-10. REC CONFI Channel Condition Check” is not
completed. (Check the error flags during this step.)
1.
Change the REC data of the nonconforming channels.
2.
Check the REC CONFI channel condition of the
nonconforming channels. (Refer to Section 9-5-10.)
3.
Repeat the steps 1 and 2 until the following specifica-
tion is met.
Specification
: Only leftmost square on the LCD
lights up.
4.
If not, adjust as follows.
5.
Change the PHASE data of the nonconforming
channels.
6.
Check the channel conditions (REC CONFI, Align-
ment Tape Playback) of the nonconforming channels.
(Refer to Sections 9-5-10 and 9-5-12.)
7.
Repeat the steps 5 and 6 until the following specifica-
tion is met.
Specification
: Only leftmost square on the LCD
lights up.
8.
If not, adjust as follows.
9.
Change the AMP data of the nonconforming channels.
10. Check the channel conditions (REC CONFI, Align-
ment Tape PB) of the nonconforming channels.
(Refer to sections 5-5-10 and 5-5-12.)
11. Repeat the steps 9 and 10 until the following specifica-
tion is met.
Spec : Only leftmost square on the LCD lights up.
12. Check the Self REC/PB channel condition of the
nonconforming channels. (Refer to section 5-5-11.)
Perform the following adjustment when section
“9-5-11. Self REC/PB Channel Condition Check”
and/or section
“9-5-12. Alignment Tape Playback Channel Condition
Check” is not completed. (Check the error flags
during this step.)
1.
Change the PHASE data of the nonconforming
channels.
2.
Check the channel conditions (REC CONFI, Align-
ment Tape Playback) of the nonconforming channels.
(Refer to Sections 9-5-10 and 9-5-12.)
3.
Repeat the steps 1 and 2 until the following specifica-
tion is met.
Specification
: Only leftmost square on the LCD
lights up.
4.
If not, adjust as follows.
5.
Change the AMP data of the nonconforming channels.
6.
Check the channel conditions (REC CONFI, Align-
ment Tape PB) of the nonconforming channels.
(Refer to sections 5-5-10 and 5-5-12.)
7.
Repeat the steps 5 and 6 until the following specifica-
tion is met.
Spec : Only leftmost square on the LCD lights up.
8.
Check the Self REC/PB channel condition of the
nonconforming channels. (Refer to Sections 9-5-11.)
After adjustment is completed, save the adjustment
data .(Refer to Section 9-5-13.)
VIDEO
VIDEO
AUDIO
SWITCHING GAP
EDIT GAP
ERROR FLAGS
TP12 :
TP13 :
C HEAD
E HEAD
D HEAD
F HEAD
G HEAD
H HEAD
A HEAD
B HEAD
C HEAD
D HEAD
TP11/MB-601 :
NG
GOOD
