Sharp CD-ES600V 서비스 매뉴얼 - 페이지 10

{카테고리_이름} Sharp CD-ES600V에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Sharp CD-ES600V 20 페이지. Video cd mini system
Sharp CD-ES600V에 대해서도 마찬가지입니다: 운영 매뉴얼 (48 페이지), 서비스 매뉴얼 (4 페이지)

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CD-ES600V

[4] CD SECTION

•

Adjustment

Since this CD system incorporates the following automatic adjust-

ment functions, readjustment is not needed when replacing the

pickup. Therefore, different PWBs and pickups can be combined

freely.

Each time a disc is changed, these adjustments are performed

automatically. Therefore, playback of each disc can be performed

under optimum conditions.

Items adjusted automatically

1) Offset adjustment (The offset voltage between the head amplifier

output and the VREF reference voltage is compensated inside the

IC.)

Focus offset adjustment

Tracking offset adjustment

2) Tracking balance adjustment

3) Gain adjustment (The gain is compensated inside the IC so that the

loop gain at the gain crossover frequency will be 0 dB.)

Focus gain adjustment

Tracking gain adjustment

[6] Standard Specification of Stereo System Error Message Display Contents

Error Contents

Pickup Mechanism Error.

CD Changer Mechanism Error.

CD DSP Communication Error.

Focus Not Match/IL Time Over.

TUNER

PLL Unlock.

(*) CHECKING:

If CD changer mechanism error is detected, 'CHECKING' will be dis-

play instead of 'ER-CD**'. 'ER-CD**' display will only be display when

error had been detected for the 5 th times.

Speaker abnormal detection and +B PROTECTION display

In case speaker abnormal detection or +B PROTECTION had

occurred, it can be check by pressing 'POWER', '

button. MicroComputer version number will displayed as "XV******".

Press 'GAME/VIDEO' button during version number display and then

press 'POWER', 'MEMORY/SET' and 'GAME/VIDEO' button. Display

will show "S** B**". S is referring to speaker abnormal detection and B

is referring to +B PROTECTION. ** is in hex valve.

+B PROTECTION is condition when irregular process occur on power

supply line.

BEFORE TRANSPORTING THE UNIT

The following process need to be taken after set tapering/parts

replacement.

1. Press the ON/STAND-BY button to enter stand-by mode.

2. While pressing down the

ton, press the ON/STAND-BY button. The Micro Computer version

number will be displayed as "XV******".

3. Press OPEN/CLOSE button until "WAIT"→ "FINISHED" appears.

4. Unplug the AC cord and the unit is ready for transporting.

Display

'ER-CD01'

'ER-CD**' (*)

'ER-CD31'

'NO DISC'

87.50

' and 'X-BASS'

button and the X-BASS/DEMO but-

[5] CD section

CD Error code description

Error

When Pickup set inner position, inner switch cannot detect

'ON' level for 10 secs.

10*

CAM error. Can't detect CAM switch when CAM is moving.

11*

When it detect cam operation error during initialize pro-

cess.

20*

TRAY error. Can't detect TRAY switch when TRAY is mov-

ing.

21*

When it detect TRAY operation error during initialize pro-

cess.

When it change to CD function, DSP cannot read initial

data.

'CHECKING'

If Error is detected, 'CHECKING' will be displayed instead of 'ER-

CD**'. 'ER-CD**' display will only be displayed when error had been

detected for the 5th times.

PU-IN SW Detection NG.

10: CAM SW Detection NG during normal operation

11: CAM SW Detection NG during initialize process

20:TRAY SW Detection NG during normal operation

21:TRAY SW Detection NG during initialize process

DSP COMMUNICATION ERROR.

PLL Unlock.

2 – 4

Explanation

Notes