MZ-E505

Item No.

Contents

 

 

230

Tracking servo ON

 

 

236

ABCD gain adjustment

 

 

237

KF gain adjustment

 

 

238

RF gain adjustment

 

 

244

FCS gain adjustment

 

 

245

TRK gain adjustment

 

 

 

READ GRV adjustment 1

 

 

100

R GRV setting

 

 

562

SLED move to outside

 

 

120

Focus servo OFF

 

 

122

TON offset adjustment

 

 

121

TE gain adjustment

 

 

122

TON offset adjustment

 

 

123

TEIN offset adjustment

 

 

124

TWPP offset adjustment

 

 

130

Tracking servo ON

 

 

131

TWPP offset adjustment

 

 

136

ABCD gain adjustment

 

 

137

KF gain adjustment

 

 

139

ADIP BPF fo adjustment

 

 

144

FCS gain adjustment

 

 

145

TRK gain adjustment

 

 

134

TWPP gain adjustment

 

 

131

TWPP offset adjustment 1

 

 

132

TWPP offset adjustment 2

 

 

149

TWPP OP offset adjustment

 

 

138

RF gain adjustment

 

 

100

R GRV setting • Servo OFF

 

 

5-6. LED VOLTAGE ADJUSTMENTS

5-6-1. LED voltage check

Connection:

digital voltmeter

MAIN board

TP902 (VCOUT)

TP815 (LEDADJ)

Procedure:

1.Confirm the power voltage is at 1.5 V.

2.Set to the test mode.

3.Set the Manual mode and set the item No. to 071.

Connect a digital voltmeter to TP902 (VCOUT) and TP815 (LEDADJ) on the MAIN board and confirm the voltage (high luminosity RED voltage value).

LCD display

071 Red35H XX

XXX: A/D value.

4.Turn the control towards VOL + four times to change the item No. to 075.

Connect a digital voltmeter to TP902 (VCOUT) and TP815 (LEDADJ) on the MAIN board and confirm the voltage (high luminosity GREEN voltage value).

LCD display

075 GRN35H XX

XXX: A/D value.

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Sony MZ-E505 service manual 071 Red35H, 075 GRN35H, LED Voltage Adjustments, LED voltage check

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.