WF-1100W
– 5 –
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
SW501A
TAPE 2 MAIN
OFF
SW502
TAPE 1 MAIN
OFF
SW503
TAPE 2 PLAY
OFF
SW504
TAPE 2 DIRECTION
A
SW601
VOLTAGE SELECTOR
AC220-240V
REF. NO.
VOLTAGE
Figure 5 TYPES OF TRANSISTOR AND LED
333ID
VIEW
FRONT
KTA1271 Y
KTC3199 GR
KTC3203 Y
VIEW
FRONT
E B C
IC2 (LA1805)
PIN
FM
MW/SW1/SW2
1.6V
1.7V
1.6V
1.7V
5.8V
6.5V
0.2V
1.4V
1.6V
1.7V
0V
0V
10.7V
10.7V
0V
0V
2.4V
2.4V
2.4V
2.4V
5.1V
6.4V
0.9V
0.9V
1
2
3
4
5
6
7
8
9
10
11
12
1.1V
0V
2.1V
1.9V
1V
1.8V
1.8V
1.8V
1.6V
1.7V
1.6V
1.6V
0.4V
1.1V
5.8V
6.3V
5.8V
6.3V
0.5V
1.7V
1.6V
1.7V
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
1.3V
1.3V
1.4V
1.4V
1.4V
1.4V
0V
0V
0V
0V
2.1V
2.1V
1.3V
1.3V
0V
0V
0V
0V
1
2
3
4
5
6
7
8
9
10
11
12
0.9V
0.9V
0V
0V
1.3V
1.3V
2.1V
2.1V
1.4V
1.5V
5.2V
5.2V
2.1V
0V
1.4V
1.4V
1.3V
1.3V
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/SW1/SW2
