Sony TCM-40DV, Service Manual

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– 17 – – 18 – – 19 – – 20 –
• IC Block Diagrams
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
IC501 MM1251BFBE
BOOSTER
CIRCUIT
NC CT
GND
OUT
NC VCC VS HYS
2 1 3 4
6 7 8 5
+
–
+
–
IC601 LB1877V-TLM
COMPARATOR
S/S
VREF
IN+
WB
VB
UB
PRE DRIVER
SOFT SWITCH
WAVEFORM DETECT
COMMUNICATION
STARTING LOGIC
OSC
CIRCUIT
STARTING
DETECT
CURRENT
CONTROL
REFERENCE
VOLTAGE
POWER
SUPPLY
BIAS
SPEED CONTROL
REFERENCE VOLTAGE
OUTPUT
BIAS
DIRECTION
CONTROL
SPEED
CONTROL
13
VSP 14
OUT
15
FC 16
LB 17
VCC 18
DR 19
UOUT 20
12
11
4
WOUT
2
PGND 3
VOUT 1
5
6
OSC 7
COM 8
GND 9
R1 10
+
–
(2) MECHANISM DECK SECTION-1
(MT-40-118)
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
1 3-318-382-31 SCREW (1.7), TAPPING
2 3-345-648-51 SCREW (M1.4), TOOTHED LOCK
* 3 A-3021-227-A MAIN BOARD, COMPLETE
4 3-008-612-01 TERMINAL, PLUS
5 3-924-750-01 TERMINAL, MINUS
6 3-924-744-01 SPRING (CLAW DETECTION), TENSION
7 3-018-311-01 CLAW, ERASING PREVENTION
8 3-018-310-11 BUTTON (PAUSE)
9 4-969-980-21 SCREW (IB LOCK)
10 3-578-101-41 PLATE, ORNAMENTAL
11 3-018-307-62 CABINET (FRONT)
12 A-3021-225-A LED BOARD, COMPLETE
13 3-936-424-01 SPRING, CASSETTE
14 4-017-441-01 CUSHION (B)
* 15 3-924-757-01 BRACKET (SPEAKER)
16 3-924-761-01 STRAP
17 3-018-309-11 LID, BATTERY CASE
18 3-018-308-51 CABINET (REAR)
19 3-018-312-01 FOOT (A)
20 3-334-565-11 SCREW (B1.7X10), TAPPING
21 3-023-856-01 FOOT (B)
22 3-907-531-01 SCREW
23 3-831-441-99 SPACER, KNOB
24 X-3377-425-1 LID SUB ASSY, CASSETTE (including MIC101)
25 3-026-183-01 CUSHION (BATTEY CASE LID)
26 3-318-382-04 SCREW (1.7), TAPPING
27 1-672-147-11 CONNECTION FLEXIBLE BOARD
SP901 1-505-838-11 SPEAKER (3.6cm)
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 X-3370-386-1 PINCH ROLLER ASSY
52 3-925-146-01 BUTTON (FF) ( ) )
53 3-925-147-01 BUTTON (REW) ( 0 )
54 3-925-148-01 BUTTON (PLAY) ( ( )
55 3-925-145-11 BUTTON (REC) ( r )
56 3-936-409-01 BUTTON (STOP) ( p )
57 1-548-582-11 COUNTER, TAPE (SMALL TYPE)
58 3-924-625-01 LEVER (HEAD)
59 3-924-645-01 BRACKET (HEAD)
60 3-924-685-01 SPRING (AZIMUTH), COMPRESSION
61 3-704-197-31 SCREW (IB LOCK)
62 3-375-135-01 SCREW (1.4), SPECIAL
63 3-376-177-01 SCREW (M1.4X3.8)
64 3-925-107-01 SPRING (IDLER), COMPRESSION
65 3-924-637-01 GEAR (FF)
66 3-924-673-01 GEAR (S REEL)
67 3-924-674-01 SPRING (B. T), COMPRESSION
68 3-924-641-01 GEAR (T REEL)
69 3-936-582-03 SPRING (GROUND), TORSION
70 3-924-681-01 BELT (CAPSTAN)
71 1-649-600-11 MOTOR FLEXIBLE BOARD
72 3-376-407-01 SCREW (M1.4) (MOTOR)
73 3-034-903-01 SPRING (POWER TENSION), TENSION
74 3-348-160-11 SCREW (M1.4X1.6), PRECISION PAN
75 3-018-522-01 COUNTER, BRACKET
76 3-924-675-01 PULLEY (COUNTER)
77 3-924-683-01 BELT (COUNTER)
78 3-376-407-01 SCREW (M1.4)
80 3-561-685-01 SHEET (C), INSULATING
81 4-969-980-21 SCREW (IB LOCK)
HRP901 1-500-073-51 HEAD, MAGNETIC (RECORD/PLAYBACK)
M901 1-698-875-11 MOTOR, DC (CAPSTAN/REEL) (WITH PULLEY)
(1) CABINET SECTION
3
23
23 23 2
1
4
5
22
21 20
19
18
17
16
1
14
13
15
23
SP901
24
(including MIC101)
9
7
6
11
10
8
12
23
26
27
25 MT-40-118
63 62
61
60
59
58
74
64
65
66
67
69
68
M901
70
81
73
77
76
52
53
54
55
56
75
78
51
HRP901
57
72
71