Audio/Video Check Mode (C2) - Sony Betacam SX DNW-A100 Maintenance Manual

For Check Failure
Change the playback portion on the tape, then recheck.
If no check failure occurs again, a trouble is considered to
exist in the previously played back portion.
Confirmation of cassette tape
Check failure occurs if the no-recorded portion is played
back or the recording format is not in Betacam SX.
Moreover, check failure will also occur on the tape record-
ed by the failled Betacam SX VTR. Confirm that the tape
can be correctly played back by the other normal operating
Betacam SX VTR.
If no trouble is found on the played back tape
The possible cause below are considered.
. Heads clogging
8 Perform steps (1) to (5) of "For Condition NG" on
previous page.
. VTR's servo system adjustment defect or circuit defect
8 Readjust the servo system. (A0 : SERVO ADJUST)
8 Check the servo system. (C03 : REEL/CAPSTAN
MOTOR & FG CHECK)
. Brush slip ring assembly defect or its part installation/
connection defect
8 Replace or reinstall the brush slip ring assembly.
(Refer to the maintenance manual part 2, volume-
1.)
. Harness (between EQ-56 board and drum assembly)
connection defect
. RF system adjustment defect
8 Readjust the RF system. (A1 : RF ADJUST)
. EQ-56 board defect
. Drum assembly defect
DNW-A100/A50/A45
DNW-A100P/A50P/A45P

4-2-4. AUDIO/VIDEO CHECK Mode (C2)

The C2 : AUDIO/VIDEO CHECK mode has four menus
that are useful for checking audio and video systems.
C2 : AUDIO/VIDEO CHECK
C20 : SYSTEM EE
C21 : VIDEO TEST SG
C22 : MULTI LOOP (10TIMES)
C23 : AUDIO TEST SG
Menu Tree of Audio/Video Systems Check Mode
4-2. TAPE Maintenance Mode (M0)
4-2-4. AUDIO/VIDEO CHECK Mode (C2)
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