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• IC Block Diagram
IC101 LA4168ML-TE-L
+
–
+
–
+
–
+
–
21
222324
2526272829
30
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
1819
20
300k
EQ
MIC
2.2k
30k
2k
PAUSE
POWER
MIC
VCC
Vref
R/P
R, F
GVN
VOX
SPEED
ALC
VOX
20k
REC
1
2
PRE GND
EQ IN
MIC IN
Vref OUT
MIC VCC
R, F OUT
LED DRIV
E
R/P SW
PAUSE
P/R MUTE
GVN CONT
GVN Vref
Vs
GVN GND
GVN OUT
PRE NF
PRE OUT
REC IN
REC OUT
ALC CONT
VOX CONT
VOX DELAY
GNV SPEED UP
AUT STOP CONT
AUT STOP IN
PWR IN
PWR OUT1
PWR GND
PWR OUT2
Vcc
(1) CABINET SECTION
SECTION 7
EXPLODED VIEWS
• 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 num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑↑
Parts Color Cabinet's Color
Ref. No. Part No. Description Remark
Ref. No. Part No. Description Remark
– 15 –
– 16 –
1 3-318-382-31 SCREW (1.7), TAPPING
2 3-345-648-01 SCREW (M1.4), TOOTHED LOCK
* 3 A-3021-314-A MAIN BOARD, COMPLETE
4 3-924-741-01 TERMINAL, PLUS
5 3-936-973-01 TERMINAL, MINUS
6 3-924-744-01 SPRING (CLAW DETECTION), TENSION
7 3-924-743-01 CLAW, ERASING PROTECTION
8 3-334-565-41 SCREW (B1.7), TAPPING
9 3-924-745-01 BAR, GROUND
10 3-924-740-01 HOLDER, MICROPHONE
11 3-924-763-01 CUSHION (MICROPHONE)
12 3-924-742-21 KNOB (VOR)
13 3-939-590-26 SCREW (IB LOCK)
14 3-578-101-31 PLATE, ORNAMENTAL
15 3-019-364-33 CABINET (FRONT) (20DV: 1E/23DV: 1E)
15 3-019-364-43 CABINET (FRONT) (20DV: 1E/23DV: 1E)
16 3-924-739-01 SPRING, CASSETTE
17 X-4952-666-1 LID ASSY, CASSETTE
18 4-017-441-01 CUSHION (B)
* 19 3-924-757-01 BRACKET (SPEAKER)
20 3-328-319-01 STRAP, HAND
21 3-924-749-21 LID, BATTERY CASE
22 3-924-747-21 KNOB (PAUSE)
23 3-019-597-11 CABINET (REAR)
24 3-318-203-92 SCREW (B1.7X9), TAPPING
25 3-366-890-51 SCREW (IB LOCK)
26 3-831-441-99 CUSHION
28 3-831-441-11 CUSHION, CABINET UPPER 10X7X0.5
* 29 1-676-967-11 SW BOARD
SP901 1-505-838-11 SPEAKER (3.6cm)
MIC101 1-542-136-11 MICROPHONE, ELECTRET CONDENSER
28
13
12
14
15
16
22
1
7
6
10
11
MIC101
MT-20DV-118
9
8
5
4
1
26
2
26
26
3
25
24
23
21
20
1
18
19
26
17
SP901
26
26
not
supplied
not
supplied
29
• Abbreviation
1E: No indication of country of origin