Sony HDW-750 Maintenance Manual page 517

4. The adjustment results of all channels are displayed.
When the adjustment ends normally :
"GRN" is displayed in the ALL column.
RF CHECK MENU
C11:PB CH CONDITION
COMPLETE
CH RSLT
A GRN
C GRN
E GRN
G GRN
→
ALL GRN
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When the adjustment fails: "CONDITION NG" is displayed, check
the followings in the order as shown below again.
1. Change the playback position of the alignment and perform the
check again.
→ When no abnormality is found, this is the end of the check.
2. Perform cleaning with the use of a cleaning tape and repeat the
above check.
→ When no abnormality is found, this is the end of the check.
3. Perform cleaning with the use of a cleaning tape again and repeat
the above check.
→ When no abnormality is found, this is the end of the check.
4. Perform cleaning with the use of a cleaning cloth (referring to
Section 2-1) and repeat the above adjustment again.
→ When no abnormality is found, this is the end of the check.
If the check fails still, check the following possible causes.
. Defective adjustment of the servo system, or servo circuit is
defective.
. Defective adjustment of the RF playback system.
. The playback heads inside the drum assembly were worn out.
. Defective adjustment of tape run system, or part mounting is
defective.
. EQ-88 board is defective.
. Drum assembly is defective
2 To check the desired channel only 2 2 2 2
1. Insert the alignment tape (HR5-1A: Part No. 8-960-076-01).
n
Select the portion of the alignment tape that has 30 seconds of
continuous recording.
2. Select the desired channel to check and press the rotary encoder.
3. The check result appears in the selected channel only. (It is not
displayed in the ALL column.)
HDW-750/750CE V1
CH RSLT
B GRN
D GRN
F GRN
H GRN
When the adjustment fails :
"CONDITION NG" is displayed. The worst result is
displayed in the ALL column.
RF CHECK MENU
C11:PB CH CONDITION
CONDITION NG
CH RSLT CH
A GRN B
C YEL D
E GRN F
G GRN H
→
ALL RED
RF CHECK MENU
C11:PB CH CONDITION
COMPLETE
CH RSLT
A
C
→
E GRN
G
ALL
11-3. Contents of Menus
RSLT
GRN
RED
GRN
GRN
CH RSLT
B
D
F
H
11-15