Sony TCM-20DV, TCM-22DV, TCM-21DV Printed Wiring Boards, Semiconductor Location, SW Board

Page 10

TCM-20DV/21DV/22DV/23DV

6-2. PRINTED WIRING BOARDS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

A

MAIN BOARD (COMPONENT SIDE)

B

C

R201

R125

R115

S104

VOR

OFF L H

+ C133

R135

 

J101

 

J102

MIC

 

EAR

(PLUG IN POWER)

 

MAIN BOARD (CONDUCTOR SIDE)

MIC101

D101

MIC

BATT

 

 

C101

C147

BLK

RED

RV101

R118

C144

VOL

C143

 

 

 

 

 

–2

 

C146

 

 

 

 

 

 

 

 

 

–1

 

 

 

 

 

 

 

S101

 

 

 

 

 

(REC/PB)

 

 

 

 

 

REC

PB

 

 

 

 

–3

–6

R103

C148

R102

R105

C136

R133

 

 

 

 

 

 

 

C134

 

C107

+

+

R106

 

 

 

C137

 

 

 

 

D

R127

 

 

 

 

 

R126

 

 

 

 

 

Q112

 

 

 

 

E

E C B

 

 

 

 

R144

Q108

 

Q109

 

 

R604

B C E

 

 

 

 

B C E

 

 

 

 

 

S105

 

Q107

 

 

 

 

 

 

PAUSE

 

B C E

 

B C E

R123

OFF

 

 

 

 

 

Q110

 

 

R141

 

 

 

 

 

ON

 

C138

 

 

 

 

 

 

 

F

 

R136

 

 

 

 

 

 

 

 

RV602

SPEED

CONTROL

G

H

 

 

 

 

 

 

• Semiconductor Location

 

 

 

 

 

 

 

 

 

Ref. No.

Location

Ref. No.

Location

 

 

 

 

 

 

 

 

 

D101

A-13

Q105

G-6

I

 

 

 

Q106

F-9

 

IC101

E-11

Q107

F-3

 

 

 

 

Q108

E-3

 

 

Q101

D-13

Q109

E-3

 

 

Q102

D-14

Q110

F-3

 

 

Q103

D-10

Q111

C-7

C113

R143

 

C139

 

 

 

Q111

C130

B C E

 

R116

 

 

 

R117

 

 

 

 

 

 

B C E

R138

Q105

R139

 

 

 

 

 

 

–2

 

 

 

 

 

–5

 

 

 

C104

 

C105

 

 

 

 

 

 

 

C145

 

 

 

 

 

 

 

 

 

 

 

 

 

R104

 

 

 

 

 

R134

 

 

 

 

 

 

–1

 

 

 

 

 

–4

 

 

 

 

 

 

 

Q102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

C112

R112

R113

R111

R101

C102

Q101

 

C2

B1

E1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

Q104

 

 

1

 

 

 

2

E

C

B

R129

 

 

 

 

 

 

 

 

 

 

 

C127

 

 

B2

C1

 

 

C140

 

B C E

 

 

 

 

 

 

 

 

 

E2

HRP901

C124

 

 

R110

C108

 

 

+

 

 

 

 

 

 

 

 

 

 

 

R132

 

(REC/PB HEAD)

 

 

 

 

 

 

 

 

 

 

 

C141

 

 

 

C103

 

 

 

 

+

R119

R137

C111

+

R109

C109

R108

 

1

 

 

30

 

C106

 

 

 

 

 

R131

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R130

 

 

C123

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q103

C110

R114

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HE901

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(ERASE HEAD)

 

 

C114

C116

 

 

 

 

 

 

 

 

 

 

C142

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C122

 

 

 

 

 

 

 

 

 

 

IC101

 

R122

 

 

 

 

 

 

C149

 

 

 

 

+

 

 

 

C117

 

 

 

 

 

 

 

C132

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C118

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C120

R142

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

Q106

 

 

 

 

 

 

 

15

 

 

16

 

RV601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C121

 

 

 

 

 

 

 

 

 

 

 

R603

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C119

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

C128

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(POWER)

 

 

 

 

 

 

 

DRY BATTERY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIZE “AA”

C129

 

 

 

 

 

 

 

R606

R607

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(IEC DESIGNATION R06)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2PCS. 3V

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R610

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RV603

 

 

 

 

 

 

 

THP601

R609

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R602

 

THP602

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SP901

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SPEAKER)

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M901

(CAPSTAN/REEL)

M

BLK

RED

Q104

D-10

Q112

E-2

JNote on Printed Wiring Boards:

X: parts extracted from the component side.

Y: parts extracted from the conductor side.

z : Through hole.

b: Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

 

Caution:

 

K

Pattern face side:

Parts on the pattern face side seen from

(Conductor Side)

the pattern face are indicated.

 

Parts face side:

Parts on the parts face side seen from

 

(Component Side)

the parts face are indicated.

 

 

 

C125

+

SW BOARD

CN101

DC IN 3V

BLK

BLK

BRN

S601

REC TIME

DOUBLE NORMAL

+

C126

BRN

–1

–2

1-676-967-

11

05

11

1-676-966-

(11)

11

1-676-966-

(11)

– 11 –

– 12 –

Image 10
Contents Specifications NEWDiagrams Table of ContentsMechanical Adjustments Section Servicing NotesSection General Location of ControlsSection Disassembly Cabinet REAR, Cassette LIDMain BOARD, Mechanism Deck MT-20DV-118 BeltInstallation Main Board Torque Measurement Section Mechanical AdjustmentsTape Tension Measurement Record/Playback Head Azimuth Adjustment Section Electrical AdjustmentsTape Speed Adjustment Test TapeBlock Diagram Section DiagramsSignal Path Play Record Semiconductor Location Printed Wiring BoardsSW Board Schematic Diagram See page 15 for IC Block Diagram Section Exploded Views IC Block Diagram IC101 LA4168ML-TE-LCabinet Section Mechanism Deck MT-20DV-118 110 109 112 116 101 107 120 Section Electrical Parts List Main Main SW
Related manuals
Manual 2 pages 54.28 Kb Manual 2 pages 53.96 Kb

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.

The TCM-20DV, the entry-level model, offers straightforward functionality with user-friendly controls. It features a built-in microphone and a simple button layout, allowing users to start recording quickly and effortlessly. This model supports normal and high-speed playback, enabling fast review of recorded material. The TCM-20DV is powered by two AA batteries, making it an accessible and portable option for on-the-go recordings.

Moving up the line, the TCM-21DV introduces additional features that enhance the user experience. It retains the solid build quality and portability of its predecessor while adding a headphone jack for private listening and an external microphone input for improved audio quality. This model also includes an automatic shut-off feature, which conserves battery life by turning off the device when idle for a specific duration. The TCM-21DV is well-suited for more demanding recording tasks, thanks to these enhancements.

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.

All three models are built with durable materials, ensuring longevity and robustness for everyday use. Their design emphasizes ease of use, featuring intuitive controls and lightweight construction that make them comfortable to handle and transport.

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.