Sony TCM-23DV - Manual (Page 12)

• IC Block Diagram
IC101 LA4168ML-TE-L
+ – + – + – +
–
21 22 23 24 25 26 27 28 29 30
2 3 5 4 6 7 8 9 10 1 11 12 13 14 15
16 17 18 19 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