•
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 "
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
IC2 (LA1805)
PIN
FM
MW/SW1/SW2
PIN
FM
MW/SW1/SW2
IC101 (TA8189N)
PIN
PLAY
REC
PIN
PLAY
REC
NOTES ON SCHEMATIC DIAGRAM
" (
) are important for
1
2
3
1.6V
1.6V
5.8V
0.2V
1.7V
1.7V
6.5V
1.4V
13
14
15
1.1V
2.1V
1V
1.8V
0V
1.9V
1.8V
1.8V
1
2
3
0V
0V
1.3V
1.3V
0V
0V
1.3V
1.3V
13
14
15
0.9V
0V
1.3V
2.1V
0.9V
0V
1.3V
2.1V
REF. NO.
SW1
SW101
SW102
SW103
SW401
SW501
SW501A
SW502
SW503
SW504
SW601
FRONT
VIEW
E B C
KTA1271 Y
KTC3199 GR
KTC3203 Y
Figure 5 TYPES OF TRANSISTOR AND LED
VOLTAGE
4
5
6
7
1.6V
0V
10.7V
1.7V
0V
10.7V
16
17
18
19
1.6V
1.6V
0.4V
1.7V
1.6V
1.1V
4
5
6
7
1.4V
1.4V
0V
1.4V
1.4V
0V
16
17
18
19
1.4V
5.2V
2.1V
1.5V
5.2V
0V
– 5 –
DESCRIPTION
BAND SELECTOR
RECORD/PLAYBACK
BEAT CANCEL
DUBBING SPEED/MIC/
FM MODE
SURROUND
FUNCTION SELECTOR
TAPE 2 MAIN
TAPE 1 MAIN
TAPE 2 PLAY
TAPE 2 DIRECTION
VOLTAGE SELECTOR
8
9
10
0V
2.4V
2.4V
0V
2.4V
2.4V
20
21
22
5.8V
5.8V
0.5V
6.3V
6.3V
1.7V
8
9
10
0V
2.1V
1.3V
0V
2.1V
1.3V
20
21
22
1.4V
1.3V
1.3V
1.4V
1.3V
1.3V
WF-1100W
POSITION
FM
PLAYBACK
A
MIC/FM MONO
ON
CD/LINE
OFF
OFF
OFF
A
AC220-240V
FRONT
VIEW
333ID
11
12
5.1V
0.9V
6.4V
0.9V
23
24
1.6V
1.4V
1.7V
1.6V
11
12
0V
0V
0V
0V
23
24
0V
0V
0V
0V