Sony TCM-22DV Section Exploded Views, Cabinet Section, IC Block Diagram IC101 LA4168ML-TE-L

Page 12

SECTION 7

EXPLODED VIEWS

• IC Block Diagram

IC101 LA4168ML-TE-L

 

 

 

 

 

 

 

 

 

 

 

 

PRE GND

EQ IN

MIC IN

Vref OUT

MIC VCC

R, F OUT

LED DRIVE

R/P SW

PAUSE

P/R MUTE

GVN CONT

GVN Vref

Vs

GVN GND

GVN OUT

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

 

 

2.2k

 

 

 

 

 

PAUSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

Abbreviation

1E: No indication of country of origin

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.

 

 

 

30k

 

 

 

 

 

 

 

 

 

 

 

GVN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

 

 

 

 

 

 

 

+ –

+ –

– +

 

 

 

 

+

Vref

 

 

 

R/P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALC

VOX

 

 

 

 

 

 

 

 

 

 

 

20k

 

 

 

 

 

 

 

 

 

 

 

 

MIC

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ

REC

 

 

 

 

 

 

 

 

 

R, F

 

 

 

 

 

 

 

 

VOX

SPEED

 

 

 

 

1

POWER

2

 

 

300k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

 

9

10

11

12

13

14

15

PRE NF

PRE OUT

REC IN

REC OUT

ALC CONT

VOX CONT

VOX DELAY

GNVSPEED UP

 

STOP CONT

AUT STOP IN

PWR IN

PWR OUT1

PWR GND

PWR OUT2

Vcc

(1)CABINET SECTION

 

13

12

14

 

16

15

not supplied

MIC101

11 28

10

7

9

6

8

17

29

1

26

 

SP901

 

26

 

 

 

19

 

18

 

 

 

 

 

 

1

22

 

 

 

 

not

21

20

 

supplied

 

 

AUT

MT-20DV-118

5

3

26

4

1

26

2

26

26

23

25

24

Ref. No.

Part No.

Description

Remark

13-318-382-31 SCREW (1.7), TAPPING

23-345-648-01 SCREW (M1.4), TOOTHED LOCK

*3 A-3021-314-A MAIN BOARD, COMPLETE

43-924-741-01 TERMINAL, PLUS

53-936-973-01 TERMINAL, MINUS

63-924-744-01 SPRING (CLAW DETECTION), TENSION

73-924-743-01 CLAW, ERASING PROTECTION

83-334-565-41 SCREW (B1.7), TAPPING

93-924-745-01 BAR, GROUND

103-924-740-01 HOLDER, MICROPHONE

113-924-763-01 CUSHION (MICROPHONE)

123-924-742-21 KNOB (VOR)

133-939-590-26 SCREW (IB LOCK)

143-578-101-31 PLATE, ORNAMENTAL

153-019-364-33 CABINET (FRONT) (20DV: 1E/23DV: 1E)

Ref. No.

Part No.

Description

Remark

163-924-739-01 SPRING, CASSETTE

17X-4952-666-1 LID ASSY, CASSETTE

184-017-441-01 CUSHION (B)

*19 3-924-757-01 BRACKET (SPEAKER)

203-328-319-01 STRAP, HAND

213-924-749-21 LID, BATTERY CASE

223-924-747-21 KNOB (PAUSE)

233-019-597-11 CABINET (REAR)

243-318-203-92 SCREW (B1.7X9), TAPPING

253-366-890-51 SCREW (IB LOCK)

263-831-441-99 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

15 3-019-364-43 CABINET (FRONT) (20DV: 1E/23DV: 1E)

– 15 –

– 16 –

Image 12
Contents Specifications NEWTable of Contents Mechanical AdjustmentsDiagrams Section Servicing NotesSection General Location of ControlsSection Disassembly Cabinet REAR, Cassette LIDMain BOARD, Mechanism Deck MT-20DV-118 BeltInstallation Main Board Section Mechanical Adjustments Torque MeasurementTape Tension Measurement Section Electrical Adjustments Tape Speed AdjustmentRecord/Playback Head Azimuth Adjustment Test TapeSection Diagrams Block DiagramSignal Path Play Record Printed Wiring Boards Semiconductor LocationSW Board Schematic Diagram See page 15 for IC Block Diagram IC Block Diagram IC101 LA4168ML-TE-L Section Exploded ViewsCabinet Section Mechanism Deck MT-20DV-118 110 109 112 116 101 107 120 Section Electrical Parts List Main Main SW
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TCM-21DV, TCM-20DV, TCM-22DV specifications

The Sony TCM-20DV, TCM-21DV, and TCM-22DV are compact cassette tape recorders that exemplify the brand's commitment to quality audio capture and practical design. These models cater to a diverse audience, including students, journalists, and hobbyists, who need reliable recording devices for various purposes, from lectures and interviews to personal dictations.

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The TCM-22DV, the flagship model in this trio, takes the capabilities even further. It incorporates a dynamic microphone that captures clear and crisp audio, making it particularly effective in noisy environments. The TCM-22DV also offers advanced sound processing technologies that enhance playback fidelity, ensuring that recordings sound as close to the original source as possible. Furthermore, it features a built-in speaker that allows for convenient playback without the need for headphones.

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In conclusion, the Sony TCM-20DV, TCM-21DV, and TCM-22DV serve distinct user needs while displaying the brand's dedication to quality audio recording. With lightweight, portable designs, various features, and enhancements, these tape recorders remain relevant in an age of digital technology, continuing to offer reliable and effective audio solutions.