Sony Betacam SX DNW-A100 Maintenance Manual page 183

For Automatic Adjustment Failure
The circuit in which failure occurred can be traced to some
degree by the trouble message displayed together when
message "# ADJUST INCOMPLETE #" is displayed
during execution of adjustment menus A000 to A011.
n
The trouble message display indicates that no adjustment
could be performed because the circuit described in this
manual does not operate normally. Moreover, other
circuits (e.g., control signal system) in which failure
actually occurred may also exist.
A000 : A000-A008 ADJUST
Refer to the description of A001 to A008.
A001 : S REEL FG DUTY
When "S REEL FG AMP TROUBLE" is displayed
8
Check the S reel FG amplifier circuit on the MS-50
board.
When "S REEL DRIVER TROUBLE" is displayed
8
Check the S reel motor driver circuit on the DR-315
board.
A002 : T REEL FG DUTY
When "T REEL FG AMP TROUBLE" is displayed
8 Check the T reel FG amplifier circuit on the MS-50
board.
When "T REEL DRIVER TROUBLE" is displayed
8 Check the T reel motor driver circuit on the DR-315
board.
A003 : CAPSTAN FG DUTY
When "CAPSTAN FG AMP TROUBLE" is displayed
8
Check the capstan FG amplifier circuit on the MS-
50 board.
8
Check the capstan motor driver circuit on the DR-
315 board.
A004 : S REEL OFFSET/FRICTION
A006 : S REEL TORQUE
"# S REEL TROUBLE #" is displayed in these menus.
8 Execute the S reel FG duty adjustment (A001 : S
REEL FG DUTY) again.
8 Check the S reel motor driver circuit on the DR-315
board.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
A005 : T REEL OFFSET/FRICTION
A007 : T REEL TORQUE
"# T REEL TROUBLE #" is displayed in these menus.
8
Execute the T reel FG duty adjustment (A002 : T
REEL FG DUTY) again.
8
Check the T reel motor driver circuit on the DR-315
board.
A008 : S/T TENSION OFFSET
When "S REEL DRIVER TROUBLE" is displayed
8 Check the S tension detection circuit on the MS-50
board.
8 Check the S reel motor driver circuit on the DR-315
board.
When "T REEL DRIVER TROUBLE" is displayed
8 Check the T tension detection circuit on the MS-50
board.
8 Check the T reel motor driver circuit on the DR-315
board.
A010 : CAPSTAN FREE SPEED
Confirm whether the played back tape is alignment tape
SR2-1 (for a 525/60 system), SR2-1P (for a 625/50
system), CR2-1B (for DNW-A100/A50/A45 at 525/60
system), or CR2-1B PS (for DNW-A100P/A50P/A45P at
625/50 system).
When "CAPSTAN SERVO TROUBLE" is displayed
8 Execute the capstan FG duty adjustment (A003 :
CAPSTAN FG DUTY) again.
8 Check the capstan FG amplifier circuit and CTL
amplifier circuit on the MS-50 board.
When "CAPSTAN DRIVER TROUBLE" is displayed
8 Check the capstan motor driver circuit on the DR-
315 board.
A011 : RF SWITCHING POS.
Confirm whether the played back tape is alignment tape
SR2-1 (for a 525/60 system) or SR2-1P (for a 625/50
system).
4-2. TAPE Maintenance Mode (M0)
4-2-7. SERVO ADJUST Mode (A0)
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