Service manual

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SD-EX200
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the CD section, the CD is stopped.
• Parts marked with “ 1 ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
REF. NO DESCRIPTION POSITION
SW4 PICKUP IN ON—OFF
SW601 VOLUME DOWN ON—OFF
SW602 VOLUME UP ON—OFF
SW604 SKIP/TUNING UP ON—OFF
SW606 AUX ON—OFF
SW607 TUNER (BAND) ON—OFF
SW608 STOP ON—OFF
TYPES OF TRANSISTOR AND LED
2SB709 AR
2SD601 AR
KRA102 S
KRC102 S
KRC104 S
KRC107 S
KTA1504 GR
KTC3875 GR
AG01Z
AK09
DS1SS133
EK19
D1NL20U
B
(3)
E
(1)
C
(2)
TOP
VIEW
KDS226
MA132WA
MA132WK
TOP VIEW
TOP VIEWTOP VIEW
2SK246 GR
KTA1023 Y
KTA1266 GR
KTA1270 Y
KTA1271 Y
KTC2874 B
VIEW
FRONT
E C B
VIEW
FRONT
123
(S)(G)(D)
(1)(2)(3)
SFPW56
GD1N4004
MA111
D5SB60
AC AC
VIEW
FRONT
FRONT
VIEW
304BC2E9
304HT2P
304VT2E2
A503BC2E
SARS03
KTC3199 GR
KTC3203 Y
KRA107 M
KRC102 M
KRC104 M
KRC107 M
VIEW
FRONT
Cathode Anode
FMLG22S
1. Anode
2. No Contact
3. Cathode
REF. NO DESCRIPTION POSITION
SW609 ON/STAND-BY ON—OFF
SW610 OPEN/CLOSE ON—OFF
SW611 BASS/TREBLE ON—OFF
SW612 SKIP/TUNING DOWN ON—OFF
SW615 PLAY/PAUSE ON—OFF
SW771 CD DOOR OPEN/CLOSE ON—OFF