HOW TO ENTER SERVICE MODE - JVC LT-26WX84/T
MEMORY IC REPLACEMENT
The memory
IC stores data for proper operation of the video and deflection circuits.
When
replacing, be sure to use an IC containing this (initial value) data.
MEMORY IC
REPLACEMENT PROCEDURE
1. Power
off. Switch off the power and disconnect
the power cord from the wall outlet.
2. Replace
the memory IC. Initial value must be
entered into the new IC.
3. Power on. Connect the power cord to the wall outlet and
switch on the power.
4. SERVICE
MODE setting
Before
entering the SERVICE MODE, confirm that the setting of TV/CATV SW of the REMOTE
CONTROL UNIT is at the "TV" side and the setting of VCR/DVD SW of the
REMOTE CONTROL UNIT is at the "VCR" side. If the switches have not been
properly set, you cannot enter the SERVICE MODE.
A. Press
[SLEEP TIMER] key and, while the indication of SLEEP TIMER 0 MIN is being
displayed, press [DISPLAY] key and [VIDEO STATUS] key on the remote control
unit simultaneously.
B. The
SERVICE MODE screen of Fig.1 is displayed.
C. Verify
what to set in the SERVICE MODE, and set whatever is necessary. Refer to the SERVICE ADJUSTMENT for setting.
D. Press the
[BACK] key twice to return normal screen.
5. Receive
channel setting
Refer to the
OPERATING INSTRUCTIONS (USER'S GUIDE) and set the receive channels (Channels
Preset) as described.
6. User settings.
Check the
user setting
items according to after page. Where these do not agree, refer to the
OPERATING INSTRUCTIONS (USER'S GUIDE) and set the items as Described.
SETTING ITEM
NAME
Describe
setting item name
SETTING
VALUE
Set the
setting value.
* Press [VOL+]
/ [VOL-] key. Set the setting value.
* Press
[MUTING] key. Memorize the data.
2. YC SEP
(3D Y/C separation setting). 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 management and device driver.
7. PANEL
(Panel power limit control): [Do not change settings]
8. PP
(Multi-screen processing setting): [Do not change settings]. 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.
10. HDMI: [Do
not change settings]: Sets output data
to the DIGITAL INPUT circuit.
