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AV-27920
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
—
ae
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) Simultaneously press the DISPLAY key and VIDEO STATUS key of
the remote control unit.
2) The SERVICE MENU screen of Fig.1 is displayed.
3) While the SERVICE MENU is displayed, again simultaneously press
[SERVICE MENU
J
PICTURE
SOUND
the DISPLAY and VIDEO STATUS keys to display the Fig.2 SYSTEM
GAME
CONSTANT screen.
LOW LIGHT
HIGH LIGHT
RF AFC CHK
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.
vco(
PC BUS CTRL
SELECT BY
aij
&xiTBY
OPERATE BY
Sj
(EXIT)
[ SYSTEM CONSTANT
MTS
>
YES
VARI.OUT
>
YES
(5) Receive channei setting
Refer to the OPERATING INSTRUCTIONS(USER'S GUIDE) and set the
2
GAME
:
YES
receive channels (Channels Preset) as described.
SURROUND
:
YES
S-VIDEO
>
YES
M37272M8-4SP
SELECT BY
fal [yi
EXIT BY
OPERATE BY
ie!
EXIT
(6) User settings
Check the user setting items according to Table 2.
Where these do not agree, refer fo 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.
8
No.51370
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