Aiwa CSD-TD51, CSD-TD53, CSD-TD52 Electrical Adjustment, Cassette Deck Motor Cassette Deck Head

Page 18

ELECTRICAL ADJUSTMENT

D TUNER C.B

 

567

 

 

L003 (MW BAR ANT)

TC001

2

L004

L051

123

 

1

 

 

3

 

 

 

TP2(VT)

TC051

 

 

 

 

 

 

+

 

 

 

 

L005

L006

 

 

C039

 

 

 

 

 

 

 

TP1(DET)

 

4

 

IC001

16

21

 

 

 

 

1

 

IC002

1

 

 

 

 

L007

 

 

 

89

B CD C.B

IC404

SFR430

#

CN401

A MAIN C.B

 

IC801

 

 

 

 

CN801

 

CN201

L801

 

 

@

CASSETTE DECK MOTOR

CASSETTE DECK HEAD

E H.P. C.B

 

 

 

 

 

J251 PHONES

0

!

0!

 

 

 

 

 

< TUNER SECTION >

1.FM VT Adjustment

Settings : • Test point : TP2 (VT)

• Adjustment location :

L006

Method : Set to FM 108.0MHz and adjust L006 so that the test point voltage becomes 6.0V ± 0.05V.

2.MW VT Adjustment

Settings : • Test point : TP2 (VT)

• Adjustment location :

L004

Method : Set to MW 1000kHz (U), MW 999kHz (EZ,K) and adjust L004 so that the test point voltage becomes 3.75V ± 0.05V.

3.LW VT Adjustment <EZ,K> Settings : • Test point : TP2 (VT)

 

• Adjustment location :

L051

 

Method : Set to LW 288kHz and adjust L051 so that the

 

test point voltage becomes 4.5V ± 0.05V.

4.

FM Tracking Adjustment

 

 

L005

98.0MHz

5.

MW Tracking Adjustment <U>

 

 

L003

600kHz

 

TC001

1400kHz

6.

MW Tracking Adjustment <EZ,K>

 

 

L003

603kHz

 

TC001

1404kHz

7.

LW Tracking Adjustment <EZ,K>

 

 

L003

153kHz

 

TC051

288kHz

8.AM IF Adjustment <U>

Settings : • Test point : TP1(DET)

 

Adjustment location :

L007

Method :

Adjust L007 so that the output level at 1400kHz

 

becomes maximum.

 

9. AM IF Adjustment <EZ,K>

 

Settings :

Test point : TP1 (DET)

 

 

Adjustment location :

L007

Method :

Adjust L007 so that the output level at 1404kHz

 

becomes maximum.

 

< DECK SECTION >

10.Tape Speed Adjustment

Settings : • Test tape : TTA–100

Test point : J251 (PHONES jack)

Adjustment location : SFR of deck motor

Method : Play back the test tape and adjust SFR so that the frequency counter reads 3000Hz ± 30Hz.

11.Head Azimuth Adjustment

Settings : • Test tape : TTA–320

Test point : J251 (PHONES jack)

Adjustment location : Azimuth adjustment

screw

Method : Play back the 8kHz signal of the test tape and adjust screw so that the output becomes maximum.

12.Bias frequncy Adjustment

L801..................................................................85kHz±0.5kHz

< CD SECTION >

13.FE Balance Adjustment

Settings : • Test point : IC401 PIN58 (VR), IC401 PIN 20 (FE)

• Adjustment location : SFR430

Method : Playback the disc and adjust SFR430 so that the test point voltage becomes 0V.

PRACTICAL SERVICE FIGURE

<TUNER SECTION >

<FM SECTION >

Sensitivity:

Less than 18dB (87.5MHz)

(THD 3%)

Less than 18dB (98.0MHz)

 

Less than 18dB (108.0MHz)

Signal to Noise Ratio:

More than 66dB (at 98.0MHz)

(Input 60dB)

(EXCEPT U)

 

More than 58dB (at 98.0MHz)

 

(U)

Distortion:

Less than 3% (at 98.0MHz)

(Input 60dB)

 

Intermediate frequency:

10.7MHz

Stereo separation:

More than 20dB

< AM SECTION >

Sensitivity:

Less than 48dB (at 600kHz)

(S/N 10dB)

Less than 46dB (at 1000kHz)

 

Less than 44dB (at 1400kHz)

Distortion:

Less than 3%

(Input 74dB)

 

Intermediate frequency:

450kHz

< LW SECTION >

Sensitivity:

Less than 60dB (at 153kHz)

(S/N 10dB)

Less than 56dB (at 198kHz)

 

Less than 52dB (at 288kHz)

Distortion:

Less than 3%

(Input 80dB)

 

Intermediate frequency:

450kHz

< CASSETTE SECTION >

Tape speed:

3000Hz±60Hz

Wow & flutter:

Less than 0.3% (JIS RMS)

Take-up torque:

30-60g-cm (FWD)

FF torque:

55-140g-cm

Rew torque:

55-140g-cm

S/N ratio:

More than 35dB

Distortion:

Less than 3.0% (PB)

Noise (PB):

Less than 1mV

 

(AC/DC, MIN)

Erasing Ratio (W/FILTER):

More than 45dB

27

28

Image 18
Contents CSD-TD51 CSD-TD52 CSD-TD53 Specifications Model EZ Model Protection of Eyes from Laser Beam During Servicing VaroitusElectrical Main Parts List Conn ASSY, 4P TP-ME Conn ASSY, 2P DoorConn ASSY,6P CD-ME COIL, 10UHLCD,HLC7365 ZCH-4 Conn ASSY,4P TU-FRConn ASSY,4P KEY LED,934ID REDLCD Display Transistor IllustrationWIRING-1 MAIN/CD Schematic DIAGRAM-1 Main Schematic DIAGRAM-2 CD WIRING-2 Motor IC Block Diagram Motor C.BWIRING-3 FRONT/HP/BATT1/BATT2/KEY BATT1 C.B BATT2 C.BSchematic DIAGRAM-3 FRONT/KEY Front C.BSchematic DIAGRAM-4 Tuner U WIRING-4 Tuner U WIRING-5 Tuner EZ, K Schematic DIAGRAM-5 Tuner EZ/K Electrical Adjustment Practical Service FigureCassette Deck Motor Cassette Deck Head IC Description RFS TESSlof SLCIset DefiVvss VvddSbsy XvddXvss EflgKeyo RSTVSS1 GND CD SWMechanical Exploded View 1/1 Mechanical Parts List 1/1 Tape Mechanism Exploded View 1/1 Tape Mechanism Parts List 1/1 CD Mechanism Exploded View 1/1 CD Mechanism Parts List 1/1 ACCESSORIES/PACKAGE List11, Ikenohata 1-CHOME, TAITO-KU, Tokyo 110, Japan TEL03 3827

CSD-TD52, CSD-TD53, CSD-TD51 specifications

The Aiwa CSD-TD51, CSD-TD53, and CSD-TD52 are a triumvirate of compact stereo cassette players that evoke nostalgia while integrating modern technology for an enhanced audio experience. These models, crafted with precision by Aiwa, a brand renowned for its dedication to quality audio equipment, cater to both audiophiles and casual listeners alike.

Starting with the CSD-TD51, this model is characterized by its dual cassette deck design, allowing users to play and record from one cassette to another effortlessly. It features high-speed dubbing, which significantly reduces the time taken to create duplicates of favorite tapes. The CSD-TD51 includes a built-in AM/FM tuner that offers a wide range of radio stations, providing access to various music genres and talk shows. Its robust speakers deliver rich sound quality, making it ideal for both intimate listening sessions and larger gatherings.

Moving on to the CSD-TD52, this model adds a modern twist with a sleek, compact design that fits beautifully into any room setting. The CSD-TD52 also supports both cassette playback and recording, ensuring that users can enjoy old favorite tapes or create mixes from their current collections. Notably, the incorporation of a digital clock and programmable memory adds convenience, allowing users to set times for playback and manage their listening experience more effectively. The sound quality remains a hallmark, with enhanced bass response, thanks to the innovative speaker system integrated within the unit.

Finally, the CSD-TD53 serves as the flagship of this trio, featuring advanced audio technologies such as Dolby Noise Reduction, which minimizes tape hiss for a cleaner sound. This model also includes additional features such as a CD player, expanding the listening options to include CDs and tapes alike. The CSD-TD53 supports various media formats, making it a versatile addition to any home or personal audio setup. With an elegant design and user-friendly interface, the CSD-TD53 is perfect for those who appreciate vintage tape technology while also wanting contemporary features.

Overall, the Aiwa CSD series is a testament to the brand's commitment to quality sound and design. These models not only revitalize the classic cassette experience but also incorporate features that cater to today's technology-driven music lovers, ensuring that timeless tunes are accessible in a modern format. Whether you are a nostalgic user or a new fan of cassette culture, these Aiwa models deliver a unique blend of past and present in one compact audio solution.