Sony TC-RX50 - Exploded Views

TC-RX50/RX50ES |
SAFETY CHECK-OUT TABLE OF CONTENTS
After
correcting
the
original
service
problem,
Section
Title
|
Page
perform the following safety. check before releasing SECTION] GENERAL
the set to the customer:
Check the antenna terminals, metal trim, ‘‘metallized”’ 1-1. Location of Controls ....................... 3
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
SECTION2 MECHANICAL ADJUSTMENTS
LEAKAGE
TEST
2-1.
Torque
Measurement
......................
4
The
AC
leakage
from
any
exposed
metal
part
to
earth
ground
and
from
all
exposed
metal
parts
to
any
SECTION3
ELECTRICAL
ADJUSTMENTS
exposed
metal
part
having
a
return
to
chassis,
must
not
exceed
0.5mA
(500
microampers).
Leakage
3-1.
Record/Playback
Head
Azimuth
current
can
be
measured
by
any
one
of
three
Adjustment
.......--.0ccccccccccccceccceee.
4
methods.
3-2.
Speed
Adjustment
................
0.00.00
ee.
5
1.
A
commercial
leakage
tester,
such
as
the
Simpson
229
or
RCA
WT-540A.
Follow
the
3-3.
Playback
Level
Adjustment
................
5
manulacturers”
mstructions
to-use-
these
instru:
3-4.
Record
Bias
Adjustment
....................
6
ments.
|
2.
A
battery-operated
AC
milliammeter.
The
Data
#9.
Record
Level
Adjustment.
.¢ve+
+4.
ees
6
Precision 245 digital multimeter is suitable for
this
job.
SECTION4
DIAGRAMS
3. Measuring the voltage drop across a resistor by
means
of
a
VOM
or
battery-operated
AC
volt-
4-1.
Printed
Wiring
Board
......................
8
meter.
The
“limit”
indication
is
0.75
V,
so
4-2.
Schematic
Diagram
................--
00000.
1]
analog
meters must
have
an
accurate
low-
voltage scale. The Simpson 250 and Sanwa @ Semiconductor Lead Layouts .................. 7
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
SECTIONS EXPLODED VIEWS
suitable.
(See
Fig.
A)
5-1.
Cabinet
Section
..............
0.000
cece
eee
e.
15
o-2.
Front
Panel
Section
.....................00.
16
To
Exposed
Metal
0-3.
Mechanism
Section(1)
..................00..
17
Parts
on
Set
0-4.
Mechanism
Section(2)
..................00..
18
SECTIONG
ELECTRICAL
PARTS
LIST
............
19
— Earth Ground
Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.