This service code can be used to :
JVC LT-26WX84/SJ ADJUSTMENT PREPARATION
# You can make the necessary adjustments for this unit with either the Remote Control Unit or with the adjustment tools and parts as given below.
# Adjustment with t he Remote Control Unit is made on the basis of the initial setting values, however, the new setting values which set the screen to its optimum condition may differ from the initial settings.
# Make sure that AC power is turned on correctly.
# Turn on the power for set and test equipment before use, and start the adjustment procedures after waiting at least 30 minutes.
Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
# Never touch any adjustment setting value which are not specified in the list for this adjustment.
# Presetting before adjustment Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit:
MEASURING INSTRUMENT AND FIXTURES
(a) DC voltmeter (or digital voltmeter)
(b) Oscilloscope
(c) Signal generator (Pattern generator)
[NTSC / 525i / 525p / 750p / 1125i / DIGITAL]
(d) TV audio multiplex signal generator
(e) Remote control unit
BASIC OPERATION OF JVC LT-26WX84/SJ SERVICE MODE
MAIN MENU
1.PICTURE/SOUND
2.YC SEP
3.WHITE BALANCE
4.MEMORY SETUP
5.RF AFC
6.DD/CM
7.PANEL
8.PP
9.IP
#.PICTURE/SOUND
#.YC SEP
#. WHITE BALANCE (DO NOT ADJUST)
#.MEMORY SETUP (DO NOT ADJUST)
#RF AFC (DO NOT ADJUST)
#.DD/CM (DO NOT ADJUST)
#. PANEL (DO NOT ADJUST)
#.PP
#.IP (DO NOT ADJUST)
#.HDMI
1.PICTURE / SOUND This sets the setting values of the VIDEO, AUDIO and DEFLECTION circuits.
2.YC SEP This is used when the YC separation circuit is adjusted.
3.WHITE BALANCE This sets the setting values of the WHITE BALANCE. [Do not adjust]
4.MEMORY SETUP This sets the setting values of the MEMORY ADDRESS. [Do not adjust]
5.RF AFC This is used when the IF VCO is adjusted. [Do not adjust]6.DD/CM This sets the setting values of the panel image processing.
7.PANEL This sets the setting values of the panel power limit control.
8.PP This sets the setting value of the output of MULTI-PICTURE circuit.
9.IP This sets the setting value of the DIST circuit. [Do not adjust]0.HDMI This sets the setting value of the DIGITAL INPUT MODULE circuit. [Do not adjust].
HOW TO ENTER THE JVC LT-26WX84/SJ SERVICE MODE
NOTE: Ensure that the cursor (arrow) of the User Menu screen is pointing at Picture Control.
Before entering the SERVICE MODE, confirm that the setting of TV / CATV switch of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR / DVD switch is at the "VCR"
side. If the switches have not been properly set, you cannot enter the SERVICE MODE.
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MODE mode.
(3) When the Main Menu is displayed, press any key of the [0]
to [9] key to enter the corresponding menu mode.
@ Press any of the [0] to [9] keys before the SERVICE
MODE mode disappears.
(4) Select the service item using the [ CH + ] / [ CH - ] key.
(5) Set the value using the [ VOL + ] / [ VOL - ] key.
(6) Press the [MUTING] key to save the value.
HOW TO EXIT THE SERVICE MODE
Press the [ BACK ] key to exit the Service mode
(1) SIGNAL SYSTEM
NTSC : Composite, S-video (Y / C), RF, No signal.
DVD : 525i (component)
ED : 525p
HD : 1125i
750p : 750p
HED1 : DIGITAL 525p SIZE1
HED2 : DIGITAL 525p SIZE2
HHD : DIGITAL 1125i
H750 : DIGITAL 750p
(2) ASPECT / MULTI
ONE SCREEN
FULL : FULL
PANO : PANORAMA
CINE : CINEMA
REGU : REGULAR
M1 : One screen (for adjustment)
M2-1 : SPLIT (4 : 3)
M2-2 : SPLIT (16 : 9)
M4 : POP
M12 : INDEX
(3) VIDEO STATUS
ST : STANDARD
DA : DYNAMIC
TH : THEATER
GA : GAME
(4) WHITE BALANCE
H : HIGH
L : LOW
(5) IP CHANGING MODE
FL : FRAME
L1 : LINE
23 : COMPULSORY NATURAL CINEMA IN
(6) MEMORY MODE
FL : FRAME
L1 : LINE
23 : COMPULSORY NATURAL CINEMA IN
JVC LT-26WX84/SJ SERVICE MODE SETTING
1. PICTURE/SOUND
AUDIO, VIDEO, DEFLECTION data adjustment.
(1) SETTING ITEM No.
A : AUDIO
S : SIGNAL
D : DEFLECTION
F : FACTORY SETTING
Press [CH+] / [CH-] key
Press [SLEEP TIMER] key
(2) SETTING ITEM NAME
Describe setting item name
(3) SETTING VALUE
Set the setting value.
@ Press [VOL+] / [VOL-] key
Set the setting value.
@ Press [MUTING] key
Memorize the data.
NOTE: Setting for any of the following items that is not included in the “ADJUSTMENT PROCEDURE” section found in the later part of this manual will not be performed in servicing.
2. YC SEP (3D Y/C separation setting)
[Do not change settings of items that are not included in the "ADJUSTMENT PROCEDURE" section. ]
Sets output data to the 3D Y/C separation circuit.
@ Press [CH+] / [CH-] key
For scrolling up/down the item codes.
@ Press [VOL+] / [VOL-] key
For scrolling up/down the data values.
3. WHITE BALANCE (White balance setting)
[Setting for this item is not required in servicing.]
4. MEMORY SETUP (Memory setting)
[Do not change settings]
5. RF AFC
Setting for this item is not required in servicing.
6. DD/CM
[Do not change settings]
Adjustment of color manegment and device driver
7. PANEL (Panel power limit control)
[Do not change settings]
8. PP (Multi-screen processing setting)
[Do not change settings of items that are not included in the
"ADJUSTMENT PROCEDURE" section.]
Sets output data to the multi-screen processing circuit.
@ Press [CH+] / [CH-] key
For scrolling up/down the item codes.
@ Press [VOL+] / [VOL-] key
For scrolling up/down the data values.
9. IP (DIST setting)
[Do not change settings]
Sets output data to the DIST circuit.
0. HDMI
[Do not change settings]
Sets output data to the DIGITAL INPUT circuit
INITIAL SETTING VALUES IN THE JVC LT-26WX84/SJ SERVICE MODE
@ Perform fine-tuning based on the "initial values" using the remote control when in the Service mode.
@ The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values. But, don't change the values that are not written in "ADJUSTMENT PROCEDURE". They are fixed values.
NOTE: As for the items whose settings are "Fixed" in Table 1 in "3.3 MEMORY IC REPLACEMENT", the following tables show initial values in NTSC signal input mode. As for the items whose conditions of SETTING VALUE are not written in the following tables, the following tables show initial values in NTSC signal input mode.
JVC LT-32WX84 /HA and JVC LT-32WX84 /K
JVC LT-26WX84/SJ ADJUSTMENT PREPARATION
# You can make the necessary adjustments for this unit with either the Remote Control Unit or with the adjustment tools and parts as given below.
# Adjustment with t he Remote Control Unit is made on the basis of the initial setting values, however, the new setting values which set the screen to its optimum condition may differ from the initial settings.
# Make sure that AC power is turned on correctly.
# Turn on the power for set and test equipment before use, and start the adjustment procedures after waiting at least 30 minutes.
Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
# Never touch any adjustment setting value which are not specified in the list for this adjustment.
# Presetting before adjustment Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit:
MEASURING INSTRUMENT AND FIXTURES
(a) DC voltmeter (or digital voltmeter)
(b) Oscilloscope
(c) Signal generator (Pattern generator)
[NTSC / 525i / 525p / 750p / 1125i / DIGITAL]
(d) TV audio multiplex signal generator
(e) Remote control unit
JVC LT-26WX84/SJ TV Service Menu
Photo credit : lkda.org
BASIC OPERATION OF JVC LT-26WX84/SJ SERVICE MODE
MAIN MENU
1.PICTURE/SOUND
2.YC SEP
3.WHITE BALANCE
4.MEMORY SETUP
5.RF AFC
6.DD/CM
7.PANEL
8.PP
9.IP
#.PICTURE/SOUND
#.YC SEP
#. WHITE BALANCE (DO NOT ADJUST)
#.MEMORY SETUP (DO NOT ADJUST)
#RF AFC (DO NOT ADJUST)
#.DD/CM (DO NOT ADJUST)
#. PANEL (DO NOT ADJUST)
#.PP
#.IP (DO NOT ADJUST)
#.HDMI
1.PICTURE / SOUND This sets the setting values of the VIDEO, AUDIO and DEFLECTION circuits.
2.YC SEP This is used when the YC separation circuit is adjusted.
3.WHITE BALANCE This sets the setting values of the WHITE BALANCE. [Do not adjust]
4.MEMORY SETUP This sets the setting values of the MEMORY ADDRESS. [Do not adjust]
5.RF AFC This is used when the IF VCO is adjusted. [Do not adjust]6.DD/CM This sets the setting values of the panel image processing.
7.PANEL This sets the setting values of the panel power limit control.
8.PP This sets the setting value of the output of MULTI-PICTURE circuit.
9.IP This sets the setting value of the DIST circuit. [Do not adjust]0.HDMI This sets the setting value of the DIGITAL INPUT MODULE circuit. [Do not adjust].
HOW TO ENTER THE JVC LT-26WX84/SJ SERVICE MODE
NOTE: Ensure that the cursor (arrow) of the User Menu screen is pointing at Picture Control.
Before entering the SERVICE MODE, confirm that the setting of TV / CATV switch of the REMOTE CONTROL UNIT is at the "TV" side and the setting of VCR / DVD switch is at the "VCR"
side. If the switches have not been properly set, you cannot enter the SERVICE MODE.
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key simultaneously, then enter the SERVICE MODE mode.
(3) When the Main Menu is displayed, press any key of the [0]
to [9] key to enter the corresponding menu mode.
@ Press any of the [0] to [9] keys before the SERVICE
MODE mode disappears.
(4) Select the service item using the [ CH + ] / [ CH - ] key.
(5) Set the value using the [ VOL + ] / [ VOL - ] key.
(6) Press the [MUTING] key to save the value.
HOW TO EXIT THE SERVICE MODE
Press the [ BACK ] key to exit the Service mode
(1) SIGNAL SYSTEM
NTSC : Composite, S-video (Y / C), RF, No signal.
DVD : 525i (component)
ED : 525p
HD : 1125i
750p : 750p
HED1 : DIGITAL 525p SIZE1
HED2 : DIGITAL 525p SIZE2
HHD : DIGITAL 1125i
H750 : DIGITAL 750p
(2) ASPECT / MULTI
ONE SCREEN
FULL : FULL
PANO : PANORAMA
CINE : CINEMA
REGU : REGULAR
M1 : One screen (for adjustment)
M2-1 : SPLIT (4 : 3)
M2-2 : SPLIT (16 : 9)
M4 : POP
M12 : INDEX
(3) VIDEO STATUS
ST : STANDARD
DA : DYNAMIC
TH : THEATER
GA : GAME
(4) WHITE BALANCE
H : HIGH
L : LOW
(5) IP CHANGING MODE
FL : FRAME
L1 : LINE
23 : COMPULSORY NATURAL CINEMA IN
(6) MEMORY MODE
FL : FRAME
L1 : LINE
23 : COMPULSORY NATURAL CINEMA IN
JVC LT-26WX84/SJ SERVICE MODE SETTING
1. PICTURE/SOUND
AUDIO, VIDEO, DEFLECTION data adjustment.
(1) SETTING ITEM No.
A : AUDIO
S : SIGNAL
D : DEFLECTION
F : FACTORY SETTING
Press [CH+] / [CH-] key
Press [SLEEP TIMER] key
(2) SETTING ITEM NAME
Describe setting item name
(3) SETTING VALUE
Set the setting value.
@ Press [VOL+] / [VOL-] key
Set the setting value.
@ Press [MUTING] key
Memorize the data.
NOTE: Setting for any of the following items that is not included in the “ADJUSTMENT PROCEDURE” section found in the later part of this manual will not be performed in servicing.
2. YC SEP (3D Y/C separation setting)
[Do not change settings of items that are not included in the "ADJUSTMENT PROCEDURE" section. ]
Sets output data to the 3D Y/C separation circuit.
@ Press [CH+] / [CH-] key
For scrolling up/down the item codes.
@ Press [VOL+] / [VOL-] key
For scrolling up/down the data values.
3. WHITE BALANCE (White balance setting)
[Setting for this item is not required in servicing.]
4. MEMORY SETUP (Memory setting)
[Do not change settings]
5. RF AFC
Setting for this item is not required in servicing.
6. DD/CM
[Do not change settings]
Adjustment of color manegment and device driver
7. PANEL (Panel power limit control)
[Do not change settings]
8. PP (Multi-screen processing setting)
[Do not change settings of items that are not included in the
"ADJUSTMENT PROCEDURE" section.]
Sets output data to the multi-screen processing circuit.
@ Press [CH+] / [CH-] key
For scrolling up/down the item codes.
@ Press [VOL+] / [VOL-] key
For scrolling up/down the data values.
9. IP (DIST setting)
[Do not change settings]
Sets output data to the DIST circuit.
0. HDMI
[Do not change settings]
Sets output data to the DIGITAL INPUT circuit
INITIAL SETTING VALUES IN THE JVC LT-26WX84/SJ SERVICE MODE
@ Perform fine-tuning based on the "initial values" using the remote control when in the Service mode.
@ The "initial values" serve only as an indication rough standard and therefore the values with which optimal display can be achieved may be different from the default values. But, don't change the values that are not written in "ADJUSTMENT PROCEDURE". They are fixed values.
NOTE: As for the items whose settings are "Fixed" in Table 1 in "3.3 MEMORY IC REPLACEMENT", the following tables show initial values in NTSC signal input mode. As for the items whose conditions of SETTING VALUE are not written in the following tables, the following tables show initial values in NTSC signal input mode.
