JVC LT-26A70BJ Service Manual page 13

3.2 MEMORY IC REPLACEMENT
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.2.1 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting values.
3. Power on
Connect the power plug to the AC outlet and switch on the power.
4. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.
5. User setting
Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described.
6. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for setting.
3.2.2 SERVICE MODE SETTING
SERVICE MODE SCREEN
NOTE:
As self check feature
"2.SELF_CHECK" and "4.OPTION" cannot be selected
(screen display only).
SERVICE MODE SCREEN
SERVICE MENU SERVICE MENU
1.ADJUST 1.ADJUST
2.SELF_CHECK 2.SELF_CHECK
3.I2C STOP 3.I2C STOP
4.OPTION 4.OPTION
1. ADJUST
S001 5I R OF S001 5I R OF
PAL50 PAL50 FULL FULL
is not used in this
Not used
(Display only)
126 126
STD H STD H
Fig.1
SETTING ITEM
Setting
Setting items
TV,
items
1.ADJUST Video system setting -1
Video system setting -2
Audio System Setting -1
Audio system setting -2
Option Setting
Settings Item No.
Adjust S001 - S096
Fixed D001 - D020
D031 - D099
Fixed A001 - A003
Fixed SD10 - SD15
Fixed O001 - O004
(No.YA492)1-13