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MEMORY IC REPLACEMENT
1. Memory IC
This model uses 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
(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
It must not adjustment
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
(USER'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.
Procedure
SERVICE MENU
PICTURE
THEATER
LOW LIGHT
RF AFC
VCO (CW)
SELECT
OPERATE BY
SYSTEM CONSTANT
MODEL
CCD
BBE
V-CHIP
CAN V-CHIP
XXXXXXXXX XXX
SELECT
OPERATE BY
No. 51782
AV-32220
Screen display
SOUND
OTHERS
HIGH LIGHT
I2C BUS CTRL
BY
EX
EXIT BY
IT
Fig.1
:
XX-XXXXX
:
YES
:
NO
:
YES
:
NO
BY
EX
EXIT BY
IT
Fig.2
11
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