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Perform following steps (5) through (19) when the specification in step (3) is not satisfied.
METAL adjustment [to step (16)]
(5) Playback the bowtie signal portion (17:00 to 19:00) of the alignment tape CR5-1B or CR5-1B PS.
(DNW-A22: CR5-1B, DNW-A22P: CR5-1B PS)
(6) Observe the 12.5T (PAL: 10T) portion of bowtie signal, adjust so that the waveform satisfies the
specification.
Adjustment points: Field 1: 1RV500/TBC-24(B-1)
Field 2: 1RV504/TBC-24(C-1)
If the specification is not satisfied by adjusting RV500, perform steps (7) through (10) after setting
RV500 to the mechanical center.
n
RV504 is not equipped on the TBC-24 board of board number suffixes 11 and 12.
Therefore, adjust RV500 only.
Perform following steps (7) through (10) when the specification in step (6) is not satisfied.
(7) Playback the bowtie signal portion (17:00 to 19:00) of the
alignment tape CR5-1B or CR5-1B PS again.
(8) Enter the maintenance mode, then enter A37 : TBC VR.
(9) Change the data value of item "SQ C RZ" within +2 or _2.
(10) Perform step (6) again.
Data save [to step (15)]:
Perform the data save only when SQ C RZ's data value of
A37 : TBC VR is changed.
(11) To exit A37 : TBC VR, press the MENU button on
the lower control panel.
(12) Enter A3F : NV-RAM CONTROL, then execute
"SAVE ALL ADJUST DATA".
(13) Check that the message "Save Complete" is displayed
on the video monitor.
(14) To exit A3F : NV-RAM CONTROL, press the
MENU button once.
(15) To exit the maintenance mode, press the MENU
button three times again.
(16) Eject the alignment tape CR5-1B/CR5-1B PS.
DNW-A22/A22P
Spec.
OK
OK
NG
Y lag
behind
chroma
12.5 T (for NTSC)
10 T
(for PAL)
NG
Y lead
chroma
RV201
RV200
RV501
RV500
TBC-24 board (suffix-13 and higher)
RV201
RV501
RV500
RV504
RV500 and RV504 on TBC-24 Board
6-6. TBC-23 Board Replacement
TBC-24 board (suffix-11 and 12)
RV300
RV101
RV300
RV101
6-85
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