Sony RDR-VX521, Service Manual

Page: 63 / 139

2-21
1) The replacement time of parts is not life of parts.
2) The table 2-1 is that the VCR Set is in normal condition (normal temperature, normal humidity).
The checking period may be changed owing to the condition of use, runtime and environmental conditions.
3) Life of the Cylinder Ass’y is depend on the condition of use.
4) See exploded view for location of each parts.
<Table 2-1>
∆
: Cleaning O : Check and replacement in necessary
◆
: Add Oil
T
A
P
E
P
A
T
H
S
Y
S
T
E
M
D
R
I
V
I
N
G
* Parts Name
Checking Period
Remark
500 1000 1500 2000 2500 3000 3500 4000 4500 5000
POST TENSION
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
SLANT POST S, T
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
#8 GUIDE SHAFT
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
CAPSTAN SHAFT
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
#9 GUIDE POST
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
#3 GUIDE POST
∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆ ∆
GUIDE ROLLER S, T
∆ ∆ ∆
O O O O O O O
CYLINDER ASS’Y
∆
O O O O O O O O O
FE HEAD
∆ ∆ ∆
O O O O O O O
ACE HEAD
∆
O O O O O O O O O
PINCH ROLLER
∆
O O O O O O O O O
POST REEL S, T
◆ ◆ ◆ ◆ ◆
SLEEVE TENSION
◆ ◆ ◆ ◆ ◆
POST CENTER
◆ ◆ ◆ ◆ ◆
LEVER IDLE BOSS (2Point)
◆ ◆ ◆ ◆ ◆
CAPSTAN MOTOR PULLEY
∆ ∆ ∆ ∆ ∆
O O O O O
BELT PULLEY O O O O O O O
HOLDER CLUTCH ASS’Y
∆
O O O O O O O O O
GEAR CENTER ASS’Y O O O O O O O O O
GEAR IDLE (2Point) O O O O O O O O O
LOADING MOTOR O O O O O O O O O
BAND BRAKE ASS’Y O O O O O O O O O
BRAKE T ASS’Y O O O O O O O O O
S
Y
S
T
E
M
- Periodic time of applying oil
(Apply oil after cleaning)
- The excessive applying oil may
be the cause of malfunction.
- To clean the parts, use patch and
alcohol (solvent).
- After cleaning, use the video tape
after alcohol is gone away
completely.
- We recommend to use oil [EP-50]
or solvent.
- One or two drops of oil should be
applied after cleaning with
alcohol.
B
R
A
K
E S
Y
S
T
E
M
2-5 THE TABLE OF CLEANING, LUBRICATION AND REPLACEMENT TIME ABOUT PRINCIPAL
PARTS