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AV-14F3PX
REPLACEMENT OF MEMORY IC
1.
MEMORY IC
This TV uses the following memory IC.
Memory IC: IC1704 on MAIN PW Board
The memory IC memorizes data for correctly operating the
video and deflection circuits. When replacing the memory IC,
be sure to use the same type IC written with the initial values
of data. In other words, use the specific IC listed in "PRINTED
WIRING BOARD PARTS LIST". For its mounting location, re-
fer to "ADJUSTMENT LOCATIONS".
2.
PROCEDURE FOR REPLACING MEMORY IC
(1) Power off
Switch the power off and unplug the power cord from the
wall outlet.
(2) Replacing the memory IC
Replace the memory IC with new one. Be sure to use the
memory IC written with the initial data values.
(3) Power on
Plug the power cord into the wall outlet and switch the
power on.
(4) Check and setting of SYSTEM CONSTANT SET:
1) Press the DISPLAY key and the VIDEO STATU key on
the remote control unit simultaneously.
The SERVICE MENU screen will be displayed. (See
Fig. 1.)
2) In the SERVICE MENU, again press the DISPLAY key
and the VIDEO STATU key simultaneously. Then, the
SYSTEM CONSTANT SET screen will be displayed.
(See Fig. 2.)
3) Check whether the setting values of the SYSTEM CON-
STANT SET are the same as those indicated in Table
1. If the value is different, select the setting item with
the MENU 1/4 key, and set the correct value with the
MENU 2/3 key.
(The selected value will be stored in memory when the
MENU 2/3 key is released.)
4) Press the EXIT key twice to return to the normal screen.
NAME OF REMOTE CONTROL KEYS
DISPLAY
TV/VIDEO
DISPLAY
PICTURE
BOOSTER
CLOSED
CAPTION
SLEEP
TIMER
VIDEO
STATUS
VIDEO STATUS
COLOUR
SYSTEM
EXIT
EXIT
MENU
CHANNEL
6
POWER
1
2
3
4
5
6
7
8
9
RETURN+
0
100+
MENU
HYPER SURROUND
MENU
MENU
MENU
MUTING
+
−
VOLUME
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS and set the
receive channels (channels preset).
(6) User settings
Check the user setting items in Tables 2-1 and 2-2, and if
setting value is different, set the correct value.
For setting, refer to the OPERATING INSTRUCTIONS.
(7) Setting of SERVICE MENU
Verify the setting for each setting item in the SERVICE
MENU. (See Table 3.) If readjustment is necessary, per-
form adjustment referring to "SERVICE ADJUSTMENTS".
SERVICE MENU
PICTURE
VIDEO STATUS
LOW LIGHT
RF AFC CHK
VCO (CW)
SELECT
OPERATE BY
SYSTEM CONSTANT
VIDEO
AUDIO
VARI. OUT
GAME
CINEMA
SELECT
OPERATE BY
SYSTEM CONSTANT
CCD
RETURN+
SURROUND
SELECT
OPERATE BY
No. 56083
SOUND
OTHERS
HIGH LIGHT
I2C BUS CTRL
BY
EXIT BY
EXIT
IT
Fig. 1
SYSTEM CONSTANT-I
:
2
:
MTS
:
NO
:
YES
:
YES
BY
EXIT BY
EXIT
IT
SYSTEM CONSTANT-II
:
YES
:
YES
:
YES
BY
EXIT BY
EXIT
IT
Fig. 2
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