MZ-E505

6-7. SCHEMATIC DIAGRAM – MAIN Board (3/3) – • See page 25 for Waveform. See page 31 for IC Block Diagrams.

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B4

B6

B5

B3

B2

 

B1

 

(3/3)

 

 

 

 

 

 

 

 

 

 

 

 

R811

TP815

CN801

 

 

 

 

 

(LED ADJ)

6P

 

 

 

 

 

1

 

 

 

 

 

 

 

C1

 

 

 

 

 

 

LEDVDD

LED R PWM

LED R PWM

LED G PWM

LED G PWM

SET KEY

SET KEY1

XWK1

WK DET

C803

SWITCH

BOARD

C201

R9221

150k

C104

C204

C101

6800p

6800p

1

C2

C302

0.1

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C102

R107

C106

10

22

220

 

 

2.5V

 

 

R103

R106

 

4.7k

6.8k

 

R203

R206

 

4.7k

6.8k

 

C202

R204

C203

220

2.5V

10

0.22

C3

R819

1M

FB801

 

RMC DTCK

R817 100

 

C4

RMC KEY

 

C5

 

 

FB802

C6

R818

 

100

 

 

 

D855

MAZZ068H01S0

S808

HOLD

OFF ON

XHOLD SW

S809

(OPEN/CLOSE DETECT)

OPEN

C804

0.01

TAP801

 

 

R205

 

 

100k

 

R301

R105

 

33

100k

RB301

C301

 

33k

10

 

X4

6.3V

 

C303

1

R303

220k

HEADPHONE AMP

IC301

TA2131FL(EL)

C304

4.7 6.3V

R302

6.8k

C305

2.2

C306

22 4V

D201

D101

C351

C854

C853

02DZ2.4-Z

02DZ2.4-Z

100p

0.1

6800p

(TPH3)

(TPH3)

 

 

 

470p

Q301

2SC4738F

-Y/GR(TPL3)

REFERENCE

VOLTAGE

SWITCHING

C851

0.1

GND

XHP STB

MUTE

BEEP

J301

RVDD

DATA

KEY

RGND

COM

L

R

C994

100p

C955

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0.1

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Image 30
Sony MZ-E505 service manual RMC Dtck

MZ-E505 specifications

The Sony MZ-E505 is a portable mini-disc player that emerged in the early 2000s as part of Sony's innovative move towards digital audio solutions. This compact device combines functionality, versatility, and cutting-edge technology, making it a popular choice among music enthusiasts. The MZ-E505 stands out due to its sleek design and impressive features, setting the standard for portable audio players of its time.

One of the main characteristics of the MZ-E505 is its lightweight design, weighing approximately 160 grams. Its portability is complemented by an elegant, user-friendly interface, which includes a simple set of buttons for easy navigation through tracks and folders. The device features a bright LCD display that shows essential information such as track number, time elapsed, and battery life, ensuring users remain informed while on the go.

The MZ-E505's standout feature is its mini-disc technology, allowing users to record and playback high-quality audio. Mini-discs, introduced by Sony in the 1990s, offer an advanced storage solution that can hold up to 74 minutes of high-fidelity stereo sound on the standard format. The player also supports LP2 and LP4 modes, enabling users to double or quadruple the recording capacity, which is perfect for those who require more space for their music collections.

In terms of sound quality, the MZ-E505 utilizes Sony’s ATRAC (Adaptive Transform Acoustic Coding) compression technology, which ensures that audio playback is clear and precise. The device is equipped with a 20-second shock protection mechanism to prevent interruptions during playback, giving users peace of mind while enjoying their favorite tracks during activities like jogging or commuting.

Battery life is another crucial aspect, and the MZ-E505 doesn’t disappoint. It features a rechargeable battery that can provide up to 10 hours of continuous playback on a full charge. Additionally, users have the option to utilize standard AA batteries as an alternative power source.

The MZ-E505 also incorporates a variety of connectivity options, including an analog line-in for direct recording from external sources. This feature was particularly appealing for audiophiles who wanted to create their mix compilations.

Overall, the Sony MZ-E505 is a remarkable blend of portability, sound quality, and innovative technology, representing the quintessential qualities of early digital audio devices. Although the mini-disc format has since been largely superseded by other digital technologies, the MZ-E505 remains a cherished piece of audio history, celebrated for its unique capabilities and breathtaking design.