GX-CD1200W
– 18 –
NOTES ON SCHEMATIC DIAGRAM
• Resistor:
To differentiate the units of resistors, The 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 an ohm resistor. The resistor designated “Fusible” is a
fuse type resistor.
• 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),(RH),(UJ): Temperature compensation
(ML): Mylar type
(S): Styrol type
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the
chassis with no signal given.
• Schematic diagram and Wiring Side of P.W. Board for this
model are subject to change for improvement without prior
notice.
• Parts marked with “ ” ( ) 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.
DESCRIPTION POSITION
SW1 BAND SELECTOR FM
SW101 RECORD/PLAYBACK PLAYBACK
SW102 BEAT CANCEL A
SW103 DUBBING SPEED/MIC/ MIC/FM MONO
FM MODE
SW401 SURROUND ON
SW501 FUNCTION SELECTOR CD/LINE
SW601 VOLTAGE SELECTOR AC220-240V
SW702 PICKUP IN OFF
SW902 TAPE 2 MAIN OFF
SW901 TAPE 1 MAIN OFF
SW903 TAPE 2 PLAY OFF
SW904 TAPE 2 DIRECTION A
REF. NO.
VOLTAGE
Figure 18 TYPES OF TRANSISTOR AND LED
333ID213
VIEW
FRONT
KTA1266 GR
KTA1271 Y
KTC3199 GR
KTC3203 Y
KRA102 M
VIEW
FRONT
E C B
KTD2058 Y
E C B
IC2 (LA1805)
PIN
FM
MW/SW
1.6V
1.6V
1.6V
1.6V
7.2V
8V
0.5V
0.8V
1.6V
1.6V
0V
0V
7.6V
7.6V
0V
0V
2.3V
2.4V
2.3V
2.4V
6.5V
8V
0.9V
0.9V
12345 6789101112
1V
0V
2.2V
1.8V
1V
1.5V
1.7V
1.7V
1.6V
1.7V
1.6V
1.6V
0.4V
0.7V
7.2V
8V
7.2V
8V
0.5V
1.6V
1.6V
1.6V
1.4V
1.6V
13 14 15 16 17 18 19 20 21 22 23 24
IC101 (TA8189N)
PIN
PLAY
REC
0V
0V
0V
0V
1.3V
1.3V
1.4V
1.4V
1.4V
1.4V
1.3V
1.3V
0V
0V
0V
0V
1.8V
1.8V
1.3V
1.3V
0V
0V
0V
0V
12345 6789101112
0.9V
0.9V
0V
0V
1.3V
1.3V
1.8V
1.8V
1.4V
1.4V
7.4V
7.4V
1.4V
0V
1.4V
1.4V
1.4V
1.4V
1.3V
1.3V
0V
0V
0V
0V
13 14 15 16 17 18 19 20 21 22 23 24
PIN
PLAY
REC
PIN
FM
MW/SW
IC202/203 (LB1403N)
PIN
LED OFF
LED ON
7.7V
1V
7.7V
1V
7.7V
1V
7.7V
1V
0V
0V
7.7V
1V
0V
2.4V
0V
0V
8.6V
8.6V
12345 6789