AV-N29702
8
No. 51885
MEMORY IC REPLACEMENT
1. Memory IC
This model use a memory IC.
This 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.
2. Memory IC replacement procedure
Procedure
Screen display
(1) Power off
Switch off the power and disconnect the power cord from the outlet.
(2) Replace the memory IC
Initial value must be entered into the new IC.
(3) Power on
Connect the power cord to the outlet and switch on the power.
(4) System constant check and setting
1) 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.
2) The SERVICE MENU screen of Fig.1 is displayed.
3) While the SERVICE MENU is displayed, again simultaneously press
the DISPLAY and VIDEO STATUS keys to display the Fig.2 SYSTEM
CONSTANT screen.
4) Refer to the SYSTEM CONSTANT table and check the setting items.
Where these differ, select the setting item with the MENU UP/DOWN
key and adjust the setting with the MENU LEFT/RIGHT keys. (The
letters of the selected item are displayed in yellow.)
5) After adjusting, release the MENU LEFT/RIGHT key to store the
setting value.
6) Press the EXIT key twice to return the 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 Table 2.
Where these do not agree, refer to the OPERATING INSTRUCTIONS (US-
ER'S GUIDE) and set the items as described.
(7) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is
necessary.(Fig.1) Refer to the SERVICE ADJUSTMENT for setting.
Fig.1
Fig.2
SERVICE MENU
PICTURE
SOUND
THEATER
OTHERS
LOW LIGHT
HIGH LIGHT
RF AFC
VCO(CW)
I2C BUS CTRL
SELECT
BY
OPERATE BY
EX
IT
EXIT BY
SYSTEM CONSTANT
MODEL
:
99
–
99999
PURITY
:
NO
CCD
:
YES
V-CHIP
:
YES
CAN V-CHIP
:
NO
999999999 999
SELECT
BY
OPERATE BY
EX
IT
EXIT BY
