Sony MZ-E90 service manual Manual Mode, Overall Adjustment Mode, How to set the Manual mode

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4-4. MANUAL MODE

4-4-1. Outline of the function

The Manual mode is designed to perform adjustments and operational checks on the set’s operation according to each individual function.

Usually, no adjustments are made in this mode.

However, the Manual mode is used to clear the memory before performing automatic adjustments in the Overall Adjustment mode.

4-4-2. How to set the Manual mode

1.Set the TEST MODE and press + key to set the Manual mode. Remote control LCD display

000AAASCC

2.Each test item is assigned with a three-digit item number. The third digit stands for a major item, the second digit for a middle item, and the first digit for a moniro item.

 

 

Change Major

 

 

+ key : Up

 

 

 

Item

 

 

 

 

 

 

key : Down

 

 

 

key

 

 

x key

 

 

 

 

 

 

> N

 

 

 

 

 

 

 

 

 

 

+ key : Up

 

 

 

 

 

 

 

 

 

 

 

 

 

Change Middle

 

 

 

 

 

Item

 

 

 

 

 

 

key : Down

 

 

 

key

 

 

x key

 

 

 

 

 

 

> N

 

 

 

 

 

 

 

 

 

 

 

 

key : Up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Change Minor

 

 

> N

 

 

 

Item

 

 

 

 

 

 

 

key : Down

 

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

 

 

 

 

 

 

+ key : Up

 

 

 

 

 

 

 

Change Adjustment

 

 

 

 

 

 

 

Value

key : Down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Write Adjustment

X key : Write

 

 

 

 

 

 

 

 

Value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.During each test mode, the display is changed from one to another each time DISPLAY key is pressed.

Address Value & Adjustment Value

LCD display

011 XXXSXX

Block Error Value & Adjustment Value

LCD display

011 XX BXX

ADIP Error Value & Adjustment Value

LCD display

011 XX AXX

Jitter Value & Adjustment Value

LCD display

011 XXXJXX

Asy Mmetry Feed Back Gain Value & Adjustment Value

LCD display

011 XX RXX

Power Adjustment Value

LCD display

731 XX VXX

Memory Monitor Mode

XXX: Each Value

XX: Adjustment Value

for Item number

Note: In the Power mode, the power adjustment value is only displayed.

4.During each test, press and hold down > N key or . key for a while to move the optical pickup on the sled outer or inner perimeter.

5.To terminate the Manual mode and return to the TEST MODE, press x key.

4-5. OVERALL ADJUSTMENT MODE

4-5-1. Outline of the function

This mode is designed to adjust the servo system automatically by going through all the adjustment items.

Usually, this mode is used to perform automatic adjustments when servicing the set.

For further information, refer to section 5. ELECTRICALADJUST- MENTS (page 12).

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Contents LCX-2E SpecificationsMass Flexible Circuit Board RepairingTable of Contents Section Servicing Note General Page Holder Assy Section DisassemblyPanel ASSY, Upper Main Board Mechanism DeckService ASSY, OP General Test ModeSetting the Test Mode Test Mode StructureHow to set the Manual mode Manual ModeOverall Adjustment Mode Reset NV Section Electrical AdjustmentsOverall CD adjustment items Overall CD and MO adjustment itemsPin No Section DiagramsIC PIN Description 1. IC801 RU6915MF-0006 System ControlSLD Vcon Pin No Pin Name DescriptionServo Block Diagrams MD Block DiagramMain Board 1/2 MD Section Main Board 2/2 SERVO, System Control Block DiagramL903 Q903 Q901Q907 L902Waveforms Modeplay OPEN/CLOSE Total Current IC801 qj XIN ModeplayIC601 UPD63731GC-9EU IC Block DiagramsIC501 SN761056DBT IC302 AK4352VT-E2IC803 IC602 MN41X17400CTT-10T1IC903 S-8328E20MC-EYA-T2 IC552IC802 IC551Main Unit Section Section Exploded ViewsSPRING, Rack Service ASSY, OP LCX-2EMechanism Deck Section MT-MZE60-169 Section Electrical Parts List Main LED TLSU1002TPX1,SONY Operate DiodeDiode UDZ-TE-17-2.4B Diode UDZ-TE-17-5.1BSWITCH, Slide Avls SwitchSWITCH, KEY Board N SWITCH, KEY BoardSony Corporation

MZ-E90 specifications

The Sony MZ-E90 is a notable portable mini-disc player, emblematic of early 2000s technology that revolutionized how music was consumed. Launched during a time when CDs and cassette tapes were dominant, the MZ-E90 provided a compact solution for digital audio playback, embodying Sony's commitment to audio quality and portability.

One of the standout features of the MZ-E90 is its ability to record audio in real-time. Users can easily create their own mini-discs by recording tracks directly from a CD, vinyl, or even from the radio. This flexibility allowed music enthusiasts to curate personalized playlists on a single medium, which was a significant advantage over traditional physical formats.

The player utilizes Sony's ATRAC (Adaptive TRAnsform Acoustic Coding) compression technology, which enables high-quality sound reproduction in a space-efficient manner. The MZ-E90 supports MDLP (MiniDisc Long Play) mode, allowing users to store multiple albums on a single disc. This capability enhanced its appeal, especially for those with extensive music collections.

In terms of design, the MZ-E90 is compact and lightweight, making it easy to transport. The player features a user-friendly interface, equipped with a backlit LCD display that shows track information and playback status. The controls are intuitive, allowing users to navigate through their music selections effortlessly.

Battery life is another crucial aspect of the MZ-E90, offering long playback hours thanks to its efficient power management. This aspect made it a preferable choice for those on the go, as it ensured that users could enjoy their music for extended periods without frequent recharging.

Moreover, the MZ-E90 includes a headphone jack for private listening and features an integrated bass boost function that augments low-frequency sounds, enhancing the listening experience for those who enjoy richer audio. The use of high-quality components further ensures that the sound reproduction does justice to the original recordings.

While the Sony MZ-E90 may not have the mainstream recognition of today’s streaming platforms, it played a pivotal role in advancing portable digital music technology. Its combination of recording capabilities, sound quality, and portability made it a cherished device for audiophiles and casual listeners alike during its production run. The legacy of such devices remains evident in the evolution of portable music, paving the way for modern digital audio players and streaming services.
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