4. Service mode 4

Keep this state more than 2 seconds while continuing pressing the [DISP] button, [BACK] button and [EJECT] button sequentially.

Screen indication

SERVICE MODE4

RDS S MODE

MONITOR S MODE

Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button. Operate choice of a menu with a [OK] button.

RDS S MODE

 

VER=V

PTY=

SPI=

SM =

PI =

SQ =

TP =

TA =

MS =

PI =

RDS service mode Only RDS model

MONITOR S MODE

R/W CHROMA 1

R/W CHROMA 2

DATA CLEAR

4.6.4 DVD check mode

See "Monitor adjustment" for details.

CHROMA DATA read/write of NTSC/PAL signal processing IC CHROMA DATA read/write of TFT driver IC

Clear of CHROMA DATA of 1,2 (return to an initial value)

DVD CHECK MODE

NORMAL PLAY

EF OUT-TRACKING OFF EF IN-TRACKING OFF CD-LASER ON DVD-LASER ON DVDx1 JITTER MODE

DVD CHECK MODE EEPROM DATA DISP EEPROM DATA CLEAR TEMPERATURE SEARCH & JITTER MONITOR

PLAY

DVD CHECK MODE STOP

OPEN

CLOSE

Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button. Operate choice of a menu with a [OK] button.

Command

Mechanism unit operation

Indication contents

 

 

 

NORMAL PLAY

Start at normal speed

Laser current value, jitter value

 

(After start, jitter is measured by an inner position.)

 

EF OUT-TRACKING OFF

Tracking off the outermost position of CD

For EF phase error

EF IN-TRACKING OFF

Tracking off the innermost position of CD

For EF phase error

CD-LASER ON

CD_LD lights and laser current is displayed.

Laser current value, jitter value

DVD-LASER ON

DVD_LD lights and laser current is displayed.

Laser current value, jitter value

DVDx1 JITTER MODE

DVD x1 jitter measuring mode

Laser current value, jitter value

 

(for use in mechanism adjustment)

 

EEPROM DATA DISP

Contents of EEPROM is displayed.

EEPROM address

 

 

EEPROM contents

EEPROM DATA CLEAR

Contents of EEPROM is initialized.

EEPROM address

 

 

EEPROM contents

TEMPERATURE

Temperature indication

Temperature is displayed in hex

 

 

numbers.

SEARCH & JITTER

The search and jitter measurement to an appointed

Position measured with VT-501

 

position of DVD.

Jitter value

MONITOR

Monitor terminal setting

 

PLAY

DVDx1 speed start

Not displayed.

 

(After start, jitter is measured by an inner position.)

 

STOP

Disc stopped, LD-OFF

Not displayed.

OPEN

OPEN

Not displayed.

CLOSE

CLOSE

Not displayed.

(No.MA165)1-33

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Image 33
JVC KD-AVX1 service manual DVD check mode, Service MODE4 RDS S Mode Monitor S Mode