Sony SLV-E120AE, Service Manual

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5-1
1-1. REGULAR CHECKS AND
MAINTENANCE ITEMS
To obtain full function and maximum performance from
the set, and to stop it getting dirty or scratched, we
recommend that you carry out the following maintenance
procedures and regular checks. The maintenance checks
described in the following section should also be carried
out without fail after carrying out any repairs to the set.
1-1-1. REGULAR CHECKS
1. MAINTAINING AND CHECKING THE MECHANISM
NOTE: OIL AND GREASE
• Always use the specified brands of oil and grease. If you
use a grease with the wrong viscosity, for example, this
can lead to all sorts of problems. Be careful to keep the
oil and grease free of dust and foreign bodies.
• A “drop” of oil is the amount of oil remaining on the tip of
a rod with a diameter of 1.5mm after it is dipped in oil to
a depth of 1cm and then taken out.
Fig.1-1-1
SECTION 5
ADJUSTMENTS
Clean Check Oil
Hours of use (H)
Part maintained 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Remarks
Tape guide
ACE head, full erase head
Tape path
Cylinder (drum)
system
Cleaner roller assembly
Pinch roller
Reel table
Drive Reel belt
system Relay gear, Pulley shaft, Gear shaft
Loading motor
Back tension
Perform- Brake system
ance
checks
FWD, REW, PLAY torque,
REV torque
( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )
The life of parts varies
enormously, depending
on the environment in
which the part is used.
Playback tension torque:
30 to 50g/cm
FWD: 600g/cm or over
REW: 600g/cm or over
PLAY (SP mode):
80 to I 40g/cm
REV: 120 to 220g/cm
1-1-2. CLEANING
1. Cylinder (Drum) (See Fig.1-1-1 )
Moisten a chamois with methyl alcohol and clean the video
head (including the Hi-Fi audio head) and the tape path
surface of the cylinder. Be sure to wipe horizontally in
relation to the video head. If you wipe vertically, or use
excessive force, you can damage the video head.
2. Tape Path System / Reel Drive System
Clean the pinch roller, the capstan shaft, the tape guides,
the FE head, the ACE head, the reel table, the pulley and
the reel belt with a soft cloth, or chamois, moistened with
methyl alcohol.
Tape path surface
Video head
Cylinder
(Drum)
SLV-E120AE/E220AE/UY/VP1/VP2/E270CP/VC1/VC2/E280CP/UX/VC1/VC2