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CDP-338ESD/608ESD
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TABLE OF CONTENTS
Section
Title
Page
Remote commander
f
Remote control system
Infrared control
1.
Power requirements
3 V DC with two batteries size AA
1-1.
Location of Controls............................ 3
(IEC designation R6)
Dimensions
67 Х20Х175 mm (w/h/d)
2.
.................... 4
(22/,X 9/4
X7 inches)
Weight
135 g (4.7 oz)
3.
Including batteries
3-1.
Circuit Boards Location ........................ 7
3-2.
Printed Wiring Boards.......................... 9
Supplied accessories
3-3.
Schematic Diagram............................ 13
Connecting cord
1
3-4.
Semiconductor Lead Layouts
.................. 18
(2 phono plugs -
2 phono plugs)
Remote commander
1
4.
EXPLODED VIEWS
Size AA batteries
2
4-1.
қына
РЫНА, 21
Screws
_
4
4-2.
.......................... 22
4-3.
Chassis Section................................ 23
Design and specifications subject to change without notice.
4-4,
Mechanism Section ............................ 24
4-5,
................ 25
5.
...................... 26
SAFETY
CHECK-OUT
f
3.
Measuring the voltage drop across a resistor by
means
of a VOM
or battery-operated
AC volt-
meter.
The
"limit"
indication
is 0.75 V, so
analog
meters
must
have
an
accurate
low-
voltage
scale.
The Simpson
250 and Sanwa
SH-63Trd
are examples of a passive VOM
that
is suitable.
Nearly all battery operated
digital
multimeters
that
have
a
2V
AC
range
are
suitable.
(See Fig. A)
After
correcting
the original
service
problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, "metallized"
knobs, screws, and all other exposed metal parts for
AC leakage.
Check leakage as described below.
LEAKAGE
TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed
metal part having a return
to chassis, must -
not
exceed
0.5 mA
(500
microampers).
Leakage
current
can
be
measured
by
any
one
of three
methods.
To Exposed Metal
Parts on Set
AC
(o EVI.
;
. ? 5
V.
l.
A
commercial
leakage
tester,
such
as
the
Simpson
229
or RCA
WT-S40A.
Follow
the
manufacturers'
instructions to use these instru-
ty
A battery-operated AC milliammeter.
The Data
Precision
245 digital multimeter is suitable for
this job.
f
Ó...
.-...................-...-...-....-.-...........-.-.-.-..-...-.-....-.........-........-....-.-..-Á..-.-.-.-..-....-.-.-.-.......-...-...................-..-......-...-....-....
SERVICING NOTE
NOTES
ON HANDLING
THE
OPTICAL
РІСК-
UP BLOCK
OR BASE
UNIT
The
laser
diode
in the optical
pick-up
block
may
suffer electrostatic breakdown because of the poten-
tial difference generated by the charged electrostatic
Fig. A.
Using an АС voltmeter to check АС leakage.
CAUTION
Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.
load, etc. on clothing and the human
body.
.
NOTES
ОМ
LASER
DIODE
EMISSION
CHECK
During repair, pay attention to electrostatic break-
The laser beam on this mode] is concentrated so as to be
down
and
also use
the
procedure
in the
printed
focused on the disc reflective surface by the objective
matter which is included in the repair parts.
lens in the optical pick-up block. Therefore, when check-
The flexible board is easily damaged and should be
ing the laser diode emission, observe from more than 30
handled with care.
cm away from the objective lens.
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