7-8
DNW-7/90/90WS
6
1
2
5
3
4
8
7
7-2-2. Periodic Check List
Replacement time shown in the following list is not the guarantee term parts. Use this list as guidelines
for the maintenance and inspection. The replacement time of the parts varies depending on the operation
environment and conditions of the unit.
n
The parts marked with “
↓
” will be replaced at the same time when the part pointed by “
↓
” is replaced.
As for replacement procedures for the parts shown in the table, refer to the maintenance manual Part2
Volume1, Section3.
Mode A : Drum running hour
Mode B : Tape running hour
No.
Item
Mode
Inspection hours (h)
Replacement parts
2000
4000
6000
Part name
Part No.
1
Upper drum
A
R
R
↓
Upper drum assy DJR-15-R
A-8311-299-
2
Slip ring
A
R
R
↓
Slip ring assy (RP)
A-8311-292-
3
Brush for slip ring
A
R
R
↓
Brush assy (RP)
A-8311-293-
4
Drum
A
_
_
R
Drum assy DJH-15A-R
A-8311-298-
5
VH cleaner
A
R
R
R
VH cleaner assy
A-8278-366-
6
Tension regulator band
B
_
R
_
Tension regulator band assy
X-3678-683-
7
Reel drive gear
B
_
R
_
Reel drive gear assy
A-8278-365-
8
Pinch roller
B
R
R
R
Pinch roller assy
X-3678-926-
The “R” mark in this table indicates the replacement timing of parts.
.
Check sometimes the deformation of the eye cap of the viewfinder, and the reduction of the emission
current of the CRT. Replace them as necessary.
.
Replace the lithium battery on the TC-80 board every five years.
7-2. Periodic Check