WM-FS111
6-4. IC BLOCK DIAGRAMS
— 17 — — 18 —
IC1 TA2111F-(EL)
IC301 LA4571M-T1
IC601 LB1979V-TLM
FM IN
RF GND
AGC
GND2
TU-IND
ST-IND
QUAD
1
2
AM L/CUT
AM/FM MIX
3
4
5
VCC2
AM IF
FM IF
6
7
8
9
10
11
12
LPF1 M/XST
L-OUT
R-OUT
13
14
15
AM OSC
FM OSC
RF VCC
FM RF
AM IN
20
21
22
23
24
DET OUT
AFC
18
19
LPF2 AM/XFM
MPX IN
16
17
FM
IF
FM
RF
FM
IF
AM
IF
AF
FM DET
LEVEL
DET
ST/MO
FM/AM
TUNE
LED
FM
MUTE
ST
LED
AM DET
FM OSC
AM OSC
FM MIX
AM MIX
AGC
VCO
DIVIDE
DECODE
20
19 18 17 16 15 14 13 12 11
1
2 3 4 5 6 7 8 9 10
CORRENT DETECT
OUTPUT
PRE
DRIVER
MIX
WAVEFORM
DETECT
CURRENT/MOTIVE
LOGIC
SOFT
SW
REFERENCE VOLTAGE
FOR SPEED CONTROL
MOTIVE POWER
DETECT
POWER SUPPLY
BIAS
REFERENCE
VOLTAGE
OSCILLATOR
CIRCUIT
SPEED
DETECT
FC GND
FC
RI
OUT
VSP
IN+
VREF
S/S
COM
OSC
WB
VCC
NC
U OUT
V OUT
W OUT
P-GND
VB
UB
GND
7-1. HOLDER CASSETTE ASSY SECTION
1
2
1
8
9
6
3
4
5
4
7
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
1 3-386-373-01 SCREW, TAPPING
2 X-3377-167-1 CASSETTE SUB ASSY, HOLDER (YELLOW)
2 X-3377-168-1 CASSETTE SUB ASSY, HOLDER (BLACK) (CND)
2 X-3377-169-1 CASSETTE SUB ASSY, HOLDER (BLUE) (CND)
3 X-3369-989-1 ARM ASSY
4 3-318-203-62 SCREW(B1.7 × 4), TAPPING
5 3-032-167-01 SCALE, DIAL (US,CND,MX)
5 3-032-167-11 SCALE, DIAL (AEP,E)
6 7-624-101-04 STOP RING 1.2 (E TYPE)
7 3-032-144-01 COVER(CASSETTE)
8 3-318-203-82 SCREW(B1.7 × 7), TAPPING
* 9 1-672-324-11 HEADPHONE BOARD
NOTE:
• -XX, -X mean standardized parts, so they may
have some differences from the original one.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
• The mechanical parts with no reference number
in the exploded views are not supplied.
• Abbreviation
CND : Canadian model
MX : Mexican model
SECTION 7
EXPLODED VIEWS
When indicating parts by reference number,
please include the board name.
• Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE)←Cabinet’s Color
1
2
3
4
5
6
7
8
9
10
13
14
15
20 11
12
18
19
16
17
GND
Vref
Power
mute
Ripple
Filter
Pre
mute
Vcc
GND
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