JVC AV-20D304/SA Service Manual page 8

2.3 MEMORY IC REPLACEMENT
2.3.1 MEMORY IC
This TV use memory IC.
In the memory IC, there are memorized data for correctly operating the video and deflection circuits.
When replacing the memory IC, be sure to use IC written with the initial values of data.
2.3.2 PROCEDURE FOR REPLACING MEMORY IC
(1) Power off
Switch the power off and unplug the power cord from the outlet.
(2) Replace IC
Be sure to use a memory IC written with the initial setting data.
(3) Power on
Connect the power cord to the outlet and switch the power on.
(4) Setting of receive channels
Set the receive channels. For setting, refer to the OPERATING INSTRUCTIONS.
(5) User settings
Check the user setting items according to "USER SETTING VALUES", and if these are different, set the correct value.
(6) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is necessary. Refer to the ADJUSTMENT for setting.
SERVICE MENU
1.V/C(S)
3.SOUND(A)
7.LOW LIGHT
9.VCO
11.I2C BUS
SELECT BY
OPERATE BY
2.DEF(D)
4.OTHERS(F)
8.HIGH LIGHT
EXIT BY EXIT
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
DISPLAY
SLEEP
TIMER
VIDEO
STATUS
VOLUME
- / +
AV-20D304
CHANNEL
+ / -
EXIT
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