Panasonic DVD-LX97EE / DVD-LX97GCS Service Manual ▷ View online
11.5. Electrical adjustment (LCD)
[How to enter into the LCD panel adjustment mode]
Play back the specified video signal (10 steps, color bas
signal).
signal).
Press and hold down "Back skip" and "Pause" of the main unit
at the same time while pressing "Menu" on the remote control
unit.
at the same time while pressing "Menu" on the remote control
unit.
[The DVD player is now in the FT02 mode]
Press the "Forward skip button twice to enter into the FT04
mode (LCD panel adjustment mode).
mode (LCD panel adjustment mode).
Press the "Playback" button to play back the signal which has
been played back before stopping and then, press the "Pause
(still) button.
been played back before stopping and then, press the "Pause
(still) button.
[How to exit to normal mode]
(Exit the F4 mode)
1. Turn off the primary power supply (Remove the DC power
supply).
supply).
Turn on the power supply. Press the "Stop" to stop the system.
Press "Cancel" on the remote control unit (The Cancel key is
enabled only when the system is stopped.)
enabled only when the system is stopped.)
l
Whenever the LCD panel is replaced, make the following
checks and adjustments.
l
Press the "Enter" key and fix the settings.
l
When the EEPROM" (IC3002) of the Main P.C.B. is replaced,
call up the LCD Panel adjustment mode (FT04) and execute
the AUDIO on the remove control unit and then check the
condition of the screen. Make adjustments as necessary.
the AUDIO on the remove control unit and then check the
condition of the screen. Make adjustments as necessary.
11.5.1. Adjusting VCO oscillation
frequency
Adjustment is required when
Check point
The synchronization of the LCD
screen is irregular after any VCO-
related circuit part is replaced
TP8201
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “1” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and ”
”buttons on
remote controller, set the right
side number to “71”.
-----
11.5.2. Adjusting DC offset of impressed
voltage
Adjustment is required when
Check point
Noise such as horizontal stripes
is found on the screen.
TL8401
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “3” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“and”
”buttons on
remote controller, set the right
side number to “AI”.
10step monochrome
11.5.3. Adjusting white balance
red/subcontrast red
Adjustment is required when
Check point
Remarkable deviation in white
balance is found
TL8602
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “6” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
(White balance)
Press “
“and “
“ buttons on
remote controller, set the number
of center to “80”.
(Sub contrast)
Press “
“ and “
“ buttons on
remote controller, set the right
side number to “7E”.
10step monochrome
11.5.4. Adjusting whitebalance
blue/subcontrast blue
Adjustment is required when
Check point
Remarkable deviation in white
balance is found
TL8604
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “7” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
(White balance)
Press “
“and “
“ buttons on
remote controller, set the number
of center to “71”.
(Sub contrast)
Press “
“and “
“ buttons on
remote controller, set the right
side number to “84”.
10step monochrome
33
DVD-LX97EE / DVD-LX97GCS
11.5.5. Adjusting amplitude of impressed
voltage
Adjustment is required when
Check point
-----
TL8401
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “2” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and “
“ buttons on
remote controller, set the right
side number to “15”.
10step monochrome
11.5.6. Adjusting pedestal
Adjustment is required when
Check point
-----
TL8603
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “4” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and “
“ buttons on
remote controller, set the number
of center to “91”.
10step monochrome
11.5.7. Adjusting contrast
Adjustment is required when
Check point
-----
TL8603
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “4” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and “
“ buttons on
remote controller, set the right
side number to “71”.
10step monochrome
11.5.8. Adjusting TINT
Adjustment is required when
Check point
-----
TL8604
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “5” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and “
“ buttons on
remote controller, set the number
of center to “75”.
75% color bar
11.5.9. Adjusting color
Adjustment is required when
Check point
-----
TL8604
Adjustment procedure
Adjustment UP
Adjustment
DOWN
Use “5” on remote control unit.
DVD
player/remote
control unit
DVD
player/remote
control
Details of adjustment
Input video signal
Press “
“ and “
“ buttons on
remote controller, set the right
number to “81”.
75% color bar
11.6. Electrical check (Video output
check)
11.6.1. Checking video output (composite
signal)
Check point
Mode
Disc
Video output terminal
Color bar
playback (75%)
DVDT-S15AS
Measuring apparatus
Check value
Oscilloscope
Y: 1000 mV ± 100 mV
Cyan: 650 mV ± 100 mV
Purpose: Keep the interchangeability of video signal
output
output
1. Terminate the composite signal of the video output
terminal with 75
W
and input into the oscilloscope.
2. Select color bar 75% from the titles of the DVD test disc
and play back.
3. Check that the composite signal output is the following
value:
34
DVD-LX97EE / DVD-LX97GCS
INITIAL/LOGO
ABBREVIATIONS
A
A0~UP
ACLK
AD0~UP
ADATA
ALE
AMUTE
AREQ
ARF
ASI
ASO
ASYNC
ACLK
AD0~UP
ADATA
ALE
AMUTE
AREQ
ARF
ASI
ASO
ASYNC
ADDRESS
AUDIO CLOCK
ADDRESS BUS
AUDIO PES PACKET DATA
ADDRESS LATCH ENABLE
AUDIO MUTE
AUDIO PES PACKET REQUEST
AUDIO RF
SERVO AMP INVERTED INPUT
SERVO AMP OUTPUT
AUDIO WORD DISTINCTION SYNC
AUDIO CLOCK
ADDRESS BUS
AUDIO PES PACKET DATA
ADDRESS LATCH ENABLE
AUDIO MUTE
AUDIO PES PACKET REQUEST
AUDIO RF
SERVO AMP INVERTED INPUT
SERVO AMP OUTPUT
AUDIO WORD DISTINCTION SYNC
B
BCK
BCKIN
BDO
BLKCK
BOTTOM
BYP
BYTCK
BCKIN
BDO
BLKCK
BOTTOM
BYP
BYTCK
BIT CLOCK (PCM)
BIT CLOCK INPUT
BLACK DROP OUT
SUB CODE BLOCK CLOCK
CAP. FOR BOTTOM HOLD
BYPATH
BYTE CLOCK
BIT CLOCK INPUT
BLACK DROP OUT
SUB CODE BLOCK CLOCK
CAP. FOR BOTTOM HOLD
BYPATH
BYTE CLOCK
C
CAV
CBDO
CD
CDSCK
CDSRDATA
CDRF
CDV
CHNDATA
CKSL
CLV
COFTR
CPA
CPCS
CPDT
CPH1~3
CPUADR
CPUADT
CPUIRQ
CPRD
CPV
CPWR
CS
CSYNCIN
CSYNCOUT
CBDO
CD
CDSCK
CDSRDATA
CDRF
CDV
CHNDATA
CKSL
CLV
COFTR
CPA
CPCS
CPDT
CPH1~3
CPUADR
CPUADT
CPUIRQ
CPRD
CPV
CPWR
CS
CSYNCIN
CSYNCOUT
CONSTANT ANGULAR VELOCITY
CAP. BLACK DROP OUT
COMPACT DISC
CD SERIAL DATA CLOCK
CD SERIAL DATA
CD RF (EFM) SIGNAL
COMPACT DISC-VIDEO
CHANNEL DATA
SYSTEM CLOCK SELECT
CONSTANT LINEAR VELOCITY
CAP. OFF TRACK
CPU ADDRESS
CPU CHIP SELECT
CPU DATA
CLOCK PULSE SOURCE DRIVE
CPU ADDRESS LATCH
CPU ADDRESS DATA BUS
CPU INTERRUPT REQUEST
CPU READ ENABLE
GATE DRIVER CLOCK PULSE
CPU WRITE ENABLE
CHIP SELECT
COMPOSITE SYNC IN
COMPOSITE SYNC OUT
CAP. BLACK DROP OUT
COMPACT DISC
CD SERIAL DATA CLOCK
CD SERIAL DATA
CD RF (EFM) SIGNAL
COMPACT DISC-VIDEO
CHANNEL DATA
SYSTEM CLOCK SELECT
CONSTANT LINEAR VELOCITY
CAP. OFF TRACK
CPU ADDRESS
CPU CHIP SELECT
CPU DATA
CLOCK PULSE SOURCE DRIVE
CPU ADDRESS LATCH
CPU ADDRESS DATA BUS
CPU INTERRUPT REQUEST
CPU READ ENABLE
GATE DRIVER CLOCK PULSE
CPU WRITE ENABLE
CHIP SELECT
COMPOSITE SYNC IN
COMPOSITE SYNC OUT
D
DACCK
DEEMP
DEMPH
DIG0~UP
DIN
DMSRCK
DMUTE
DO
DOUT0~UP
DRF
DRPOUT
DREQ
DRESP
DSC
DSLF
DVD
DEEMP
DEMPH
DIG0~UP
DIN
DMSRCK
DMUTE
DO
DOUT0~UP
DRF
DRPOUT
DREQ
DRESP
DSC
DSLF
DVD
D/A CONVERTER CLOCK
DEEMPHASIS BIT ON/OFF
DEEMPHASIS SWITCHING
FL DIGIT OUTPUT
DATA INPUT
DM SERIAL DATA READ CLOCK
DIGITAL MUTE CONTROL
DROP OUT
DATA OUTPUT
DATA SLICE RF (BIAS)
DROP OUT SIGNAL
DATA REQUEST
DATA RESPONSE
DIGITAL SERVO CONTROLLER
DATA SLICE LOOP FILTER
DIGITAL VIDEO DISC
DEEMPHASIS BIT ON/OFF
DEEMPHASIS SWITCHING
FL DIGIT OUTPUT
DATA INPUT
DM SERIAL DATA READ CLOCK
DIGITAL MUTE CONTROL
DROP OUT
DATA OUTPUT
DATA SLICE RF (BIAS)
DROP OUT SIGNAL
DATA REQUEST
DATA RESPONSE
DIGITAL SERVO CONTROLLER
DATA SLICE LOOP FILTER
DIGITAL VIDEO DISC
INITIAL/LOGO
ABBREVIATIONS
E
EC
ECR
ECR
ENCSEL
ETMCLK
ETSCLK
ETMCLK
ETSCLK
ERROR TORQUE CONTROL
ERROR
ERROR
TORQUE
CONTROL
REFERENCE
ENCODER SELECT
EXTERNAL M CLOCK (81MHz/40.5MHz)
EXTERNAL S CLOCK (54MHz)
ENCODER SELECT
EXTERNAL M CLOCK (81MHz/40.5MHz)
EXTERNAL S CLOCK (54MHz)
F
FBAL
FCLK
FE
FFI
FEO
FG
FSC
FSCK
FCLK
FE
FFI
FEO
FG
FSC
FSCK
FOCUS BALANCE
FRAME CLOCK
FOCUS ERROR
FOCUS ERROR AMP INVERTED INPUT
FOCUS ERROR AMP OUTPUT
FREQUENCY GENERATOR
FREQUENCY SUB CARRIER
FS (384 OVER SAMPLING) CLOCK
FRAME CLOCK
FOCUS ERROR
FOCUS ERROR AMP INVERTED INPUT
FOCUS ERROR AMP OUTPUT
FREQUENCY GENERATOR
FREQUENCY SUB CARRIER
FS (384 OVER SAMPLING) CLOCK
G
GND
COMMON GROUNDING (EARTH)
H
HA0~UP
HD0~UP
HINT
HRXW
HD0~UP
HINT
HRXW
HOST ADDRESS
HOST DATA
HOST INTERRUPT
HOST READ/WRITE
HOST DATA
HOST INTERRUPT
HOST READ/WRITE
I
IECOUT
IPFRAG
IREF
ISEL
IPFRAG
IREF
ISEL
IEC958 FORMAT DATA OUTPUT
INTERPOLATION FLAG
I (CURRENT) REFERENCE
INTERFACE MODE SELECT
INTERPOLATION FLAG
I (CURRENT) REFERENCE
INTERFACE MODE SELECT
L
LDON
LPC
LRCK
LPC
LRCK
LASER DIODE CONTROL
LASER POWER CONTROL
L CH/R CH DISTINCTION CLOCK
LASER POWER CONTROL
L CH/R CH DISTINCTION CLOCK
M
MA0~UP
MCK
MCKI
MCLK
MDATA
MDQ0~UP
MDQM
MLD
MPEG
MCK
MCKI
MCLK
MDATA
MDQ0~UP
MDQM
MLD
MPEG
MEMORY ADDRESS
MEMORY CLOCK
MEMORY CLOCK INPUT
MEMORY SERIAL COMMAND CLOCK
MEMORY SERIAL COMMAND DATA
MEMORY DATA INPUT/OUTPUT
MEMORY DATA I/O MASK
MEMORY SERIAL COMMAND LOAD
MOVING PICTURE EXPERTS GROUP
MEMORY CLOCK
MEMORY CLOCK INPUT
MEMORY SERIAL COMMAND CLOCK
MEMORY SERIAL COMMAND DATA
MEMORY DATA INPUT/OUTPUT
MEMORY DATA I/O MASK
MEMORY SERIAL COMMAND LOAD
MOVING PICTURE EXPERTS GROUP
O
ODC
OEH
OEV 1, 2
OFTR
OSCI
OSCO
OSD
OEH
OEV 1, 2
OFTR
OSCI
OSCO
OSD
OPTICAL DISC CONTROLLER
SOURCE DRIVER OUTPUT ENABLE
GATE DRIVER OUTPUT ENABLE
OFF TRACKING
OSCILLATOR INPUT
OSCILLATOR OUTPUT
ON SCREEN DISPLAY
SOURCE DRIVER OUTPUT ENABLE
GATE DRIVER OUTPUT ENABLE
OFF TRACKING
OSCILLATOR INPUT
OSCILLATOR OUTPUT
ON SCREEN DISPLAY
P
P1~UP
PCD
PCK
PDVD
PEAK
PLLCLK
PLLOK
PWMCTL
PWMDA
PWMOA, B
PCD
PCK
PDVD
PEAK
PLLCLK
PLLOK
PWMCTL
PWMDA
PWMOA, B
PORT
CD TRACKING PHASE DIFFERENCE
PLL CLOCK
DVD TRACKING PHASE DIFFERENCE
CAP. FOR PEAK HOLD
CHANNEL PLL CLOCK
PLL LOCK
PWM OUTPUT CONTROL
PULSE WAVE MOTOR DRIVE A
PULSE WAVE MOTOR OUT A, B
CD TRACKING PHASE DIFFERENCE
PLL CLOCK
DVD TRACKING PHASE DIFFERENCE
CAP. FOR PEAK HOLD
CHANNEL PLL CLOCK
PLL LOCK
PWM OUTPUT CONTROL
PULSE WAVE MOTOR DRIVE A
PULSE WAVE MOTOR OUT A, B
12 Abbreviations
35
DVD-LX97EE / DVD-LX97GCS
INITIAL/LOGO
ABBREVIATIONS
R
RE
RFENV
RFO
RS
RSEL
RST
RSV
RFENV
RFO
RS
RSEL
RST
RSV
READ ENABLE
RF ENVELOPE
RF PHASE DIFFERENCE OUTPUT
(CD-ROM) REGISTER SELECT
RF POLARITY SELECT
RESET
RESERVE
RF ENVELOPE
RF PHASE DIFFERENCE OUTPUT
(CD-ROM) REGISTER SELECT
RF POLARITY SELECT
RESET
RESERVE
S
SBI0, 1
SBO0
SBT0, 1
SCK
SCKR
SCL
SCLK
SDA
SEG0~UP
SELCLK
SEN
SIN1, 2
SOUT1, 2
SPDI
SPDO
SPEN
SPRCLK
SPWCLK
SQCK
SQCX
SRDATA
SRMADR
SRMDT0~7
SS
STAT
STCLK
STD0~UP
STENABLE
STH
STSEL
STV
STVALID
SUBC
SBCK
SUBQ
SYSCLK
SBO0
SBT0, 1
SCK
SCKR
SCL
SCLK
SDA
SEG0~UP
SELCLK
SEN
SIN1, 2
SOUT1, 2
SPDI
SPDO
SPEN
SPRCLK
SPWCLK
SQCK
SQCX
SRDATA
SRMADR
SRMDT0~7
SS
STAT
STCLK
STD0~UP
STENABLE
STH
STSEL
STV
STVALID
SUBC
SBCK
SUBQ
SYSCLK
SERIAL DATA INPUT
SERIAL DATA OUTPUT
SERIAL CLOCK
SERIAL DATA CLOCK
AUDIO SERIAL CLOCK RECEIVER
SERIAL CLOCK
SERIAL CLOCK
SERIAL DATA
FL SEGMENT OUTPUT
SELECT CLOCK
SERIAL PORT ENABLE
SERIAL DATA IN
SERIAL DATA OUT
SERIAL PORT DATA INPUT
SERIAL PORT DATA OUTPUT
SERIAL PORT R/W ENABLE
SERIAL PORT READ CLOCK
SERIAL PORT WRITE CLOCK
SUB CODE Q CLOCK
SUB CODE Q DATA READ CLOCK
SERIAL DATA
SRAM ADDRESS BUS
SRAM DATA BUS 0~7
START/STOP
STATUS
STREAM DATA CLOCK
STREAM DATA
STREAM DATA INPUT ENABLE
SOURCE START PULSE
STREAM DATA POLARITY SELECT
GATE DRIVER SCAN START PULSE
STREAM DATA VALIDITY
SUB CODE SERIAL
SUB CODE CLOCK
SUB CODE Q DATA
SYSTEM CLOCK
SERIAL DATA OUTPUT
SERIAL CLOCK
SERIAL DATA CLOCK
AUDIO SERIAL CLOCK RECEIVER
SERIAL CLOCK
SERIAL CLOCK
SERIAL DATA
FL SEGMENT OUTPUT
SELECT CLOCK
SERIAL PORT ENABLE
SERIAL DATA IN
SERIAL DATA OUT
SERIAL PORT DATA INPUT
SERIAL PORT DATA OUTPUT
SERIAL PORT R/W ENABLE
SERIAL PORT READ CLOCK
SERIAL PORT WRITE CLOCK
SUB CODE Q CLOCK
SUB CODE Q DATA READ CLOCK
SERIAL DATA
SRAM ADDRESS BUS
SRAM DATA BUS 0~7
START/STOP
STATUS
STREAM DATA CLOCK
STREAM DATA
STREAM DATA INPUT ENABLE
SOURCE START PULSE
STREAM DATA POLARITY SELECT
GATE DRIVER SCAN START PULSE
STREAM DATA VALIDITY
SUB CODE SERIAL
SUB CODE CLOCK
SUB CODE Q DATA
SYSTEM CLOCK
T
TE
TIBAL
TID
TIN
TIP
TIS
TPSN
TPSO
TPSP
TRCRS
TRON
TRSON
TIBAL
TID
TIN
TIP
TIS
TPSN
TPSO
TPSP
TRCRS
TRON
TRSON
TRACKING ERROR
BALANCE CONTROL
BALANCE OUTPUT 1
BALANCE INPUT
BALANCE INPUT
BALANCE OUTPUT 2
OP AMP INPUT
OP AMP OUTPUT
OP AMP INVERTED INPUT
TRACK CROSS SIGNAL
TRACKING ON
TRAVERSE SERVO ON
BALANCE CONTROL
BALANCE OUTPUT 1
BALANCE INPUT
BALANCE INPUT
BALANCE OUTPUT 2
OP AMP INPUT
OP AMP OUTPUT
OP AMP INVERTED INPUT
TRACK CROSS SIGNAL
TRACKING ON
TRAVERSE SERVO ON
INITIAL/LOGO
ABBREVIATIONS
V
VBLANK
VCC
VCC
VCDCONT
VDD
VFB
VREF
VSS
VFB
VREF
VSS
V BLANKING
COLLECTOR POWER SUPPLY
VOLTAGE
VIDEO CD CONTROL (TRACKING
BALANCE)
DRAIN POWER SUPPLY VOLTAGE
VIDEO FEED BACK
VOLTAGE REFERENCE
SOURCE POWER SUPPLY VOLTAGE
COLLECTOR POWER SUPPLY
VOLTAGE
VIDEO CD CONTROL (TRACKING
BALANCE)
DRAIN POWER SUPPLY VOLTAGE
VIDEO FEED BACK
VOLTAGE REFERENCE
SOURCE POWER SUPPLY VOLTAGE
W
WAIT
WDCK
WEH
WSR
WDCK
WEH
WSR
BUS CYCLE WAIT
WORD CLOCK
WRITE ENABLE HIGH
WORD SELECT RECEIVER
WORD CLOCK
WRITE ENABLE HIGH
WORD SELECT RECEIVER
X
X
XALE
XAREQ
XCDROM
XCS
XCSYNC
XDS
XHSYNCO
XHINT
XI
XINT
XMW
XO
XRE
XSRMCE
XSRMOE
XSRMWE
XVCS
XVDS
XVSYNCO
XALE
XAREQ
XCDROM
XCS
XCSYNC
XDS
XHSYNCO
XHINT
XI
XINT
XMW
XO
XRE
XSRMCE
XSRMOE
XSRMWE
XVCS
XVDS
XVSYNCO
X´ TAL
X ADDRESS LATCH ENABLE
X AUDIO DATA REQUEST
X CD ROM CHIP SELECT
X CHIP SELECT
X COMPOSITE SYNC
X DATA STROBE
X HORIZONTAL SYNC OUTPUT
XH INTERRUPT REQUEST
X´ TAL OSCILLATOR INPUT
X INTERRUPT
X MEMORY WRITE ENABLE
X´ TAL OSCILLATOR OUTPUT
X READ ENABLE
X SRAM CHIP ENABLE
X SRAM OUTPUT ENABLE
X SRAM WRITE ENABLE
X V-DEC CHIP SELECT
X V-DEC CONTROL BUS STROBE
X VERTICAL SYNC OUTPUT
X ADDRESS LATCH ENABLE
X AUDIO DATA REQUEST
X CD ROM CHIP SELECT
X CHIP SELECT
X COMPOSITE SYNC
X DATA STROBE
X HORIZONTAL SYNC OUTPUT
XH INTERRUPT REQUEST
X´ TAL OSCILLATOR INPUT
X INTERRUPT
X MEMORY WRITE ENABLE
X´ TAL OSCILLATOR OUTPUT
X READ ENABLE
X SRAM CHIP ENABLE
X SRAM OUTPUT ENABLE
X SRAM WRITE ENABLE
X V-DEC CHIP SELECT
X V-DEC CONTROL BUS STROBE
X VERTICAL SYNC OUTPUT
36
DVD-LX97EE / DVD-LX97GCS
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