Advertisement
SL-PD687
MESCHEMATIC DIAGRAM (Parts list on pages 46, 47, 52, 53.)
(This schematic diagram may be modified at any time with development of new technology.)
Note:
sit
: Voltage adj. switch in "240V" position.
(For (GC) area only.)
(110V ++ 127V ++ 220V ++ 240V)
© S551
: Disc tray "Open/Close" detector switch.
° S601
: Time mode (TIME MODE) switch.
* $602
: Spiral (SPIRAL) switch.
* S603
: Random mode (RANDOM MODE) switch.
* $604
: Repeat (REPEAT) switch.
$607
: Stop (I) switch.
* $608
: Pause (BM) switch.
*S609
__: Play (+) switch.
*S610~S614: Disc (DISC 1~5) switches.
(S610: 1, S611: 2, S612: 3, S613: 4, S614: 5)
©8615: Disc skip (DISC SKIP) switch.
+ $616
Program mode (PROGRAM MODE) switch.
* $617, 618 : Search (SEARCH) switches.
(S617: 4-4, S618: PP)
* S619, 620 : Skip (SKIP) switches.
(S619: Kd, S620: PPI)
+621
: Loading drawer open/close
(A OPEN/CLOSE) switch.
* $631
: Power "STANDBY
/ON"
(POWER, STANDBY
ON) switch.
* S651~S662:
Numeric (1~10, 0, > 10) switches.
$651: (1), S652: (2), S653: (3), S654: (4),
$655: (5), S656: (6), S657: (7), S658: (8),
$659: (9), S660: (10), S661:
(> 10), S662: (0)
° $701
: Rest detector.
¢ Terminal guide of IC's, transistors and diodes.
*The
voltage
value
and
waveforms
are
the
reference
voltage of this unit measured by DC electronic voltmeter
(high Impedance)
and
oscilloscope
on
the
basis
of
chassis.
Accordingly,
there
may
arise
some
error
in voltage
values and waveforms depending upon the internal
impedance of the tester or the measuring unit.
* The parenthesized
are the values of voltage generated
during playing (Test disc 1kHz, L+R, OdB), others are
voltage values in stop mode.
Important safety notice:
Components
identified
by
A
mark
have
special
characteristics
important
for
safety.
Furthermore,
special parts which
have purposes of fire-retardant
(resistors),
high-quality
sound
(capacitors),
low-noise
(resistors),
etc.
are
used
as
occation
calls.
When
replacing
any
of components,
be
sure
to
use
only
manufacturer's specified parts shown in the parts list.
*The
supply part number
is described
alone in the
replacement parts.
Part No.
| Production Part No. | Supply Part No.
Ic11
[_LM2940T5M
LM2940T5
Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
* Cover the parts boxes made of plastics with aluminum foil.
* Ground the soldering iron.
* Put a conductive mat on the work table.
* Do not touch the pins of IC or LSI with fingers directly.
es
BA4S558FHTT1
'AN8802SCE1V
'AN389SE1
MN66271RA.
UPD78044A058
BAG247N
24
°
io
:
1
2
LM2940TSM
2SA1309A1QST
28D2037EFTA
28B1238QSTV6
PT381TB
28C3311A1QST
28D1862QRTV6
2SD1450RSTTA
UN4112AITA
'
UNA114TA
Commods
7
UN4212AITA,
8<
~ anode
1. Vin
ci
UN4214AITA.
e
ca——a
Sd
.
UN4215TA
jout
2SB709sTW
MA4051MTA
MA4100MTA
RLIN4003NO2
MAI65TA
CO, Catnode
MA4O62MTA
MA4270MTA
5 a
MA4068HTA,
ca
Ca
ca
c
a
MA4091MTA.
4
Cathode
Cathode
c 4 Cathode
Le)
MAOS6MTA
Z
"
4
8
e€
Anode
Anode *
'Anode
Anode
GL380TB
RCDHC-278N
RSQGP1S53V
SG-2068
LNO18304P
18S291TA
c
ZE.
<SS>
> cathode
Anode
Z
'atnode
ag
alec
alec
fete
Carne
A
a
'Co
Ca
A—@—ca
N
Co
c
Ca
4 —@—
co
3
c
=
2
nose
2. OAKCE
Anode
Advertisement
