AV28R25EKS
AV28R250EKS
REPLACEMENT OF MEMORY ICs
1. Memory ICs
This TV use memory ICs. In the memory ICs, there are memorized data
for correctly operating the video and deflection circuits. When replacing
memory ICs, be sure to use ICs written with the initial values of data.
2. Procedure for replacing memory ICs
PROCEDURE
(1) Power off
Switch the power off and unplug the power cord from the outlet.
SERVICE MENU
(2) Replace ICs.1. IF2. V/C
Be sure to use memory ICs written with the initial data values.3. AUDIO4. DEF
5. VSM PRESET 6. VPS
7. SHIPPING (OFF)
(3) Power on
Plug the power cord into the outlet and switch the power on.1-7 : SELECTi : EXIT
Fig.1
(4) Check and set SYSTEM CONSTANT SET:
**** It must not adjust without signal.
1) Press the INFORMATION key and the MUTING key of the
REMOTE CONTROL UNIT simultaneously.
SYSTEM CONSTANT SET
2) The SERVICE MENU screen of Fig. 1 will be displayed.
MODEL=JL_EURO(*.****)
3) While the SERVICE MENU is displayed, press the
1. DESTINATION : EK
INFORMATION key and MUTING key simultaneously, and the
SYSTEM CONSTANT SET screen of Fig. 2 will be displayed.JVC JL EURO V00
4) Check the setting values of the SYSTEM CONSTANT SET of*******
Table 1. If the value is different, select the setting item with the- + OK: STOREi : EXIT
FUNCTION UP/DOWN key, and set the correct value with the
FUNCTION -/+ key.Fig.2
5) Press the MENU key to memorize the setting value.
6) Press the INFORMATION key twice, and return to the normal
screen.
(5) Setting of receive channelsNAME OF REMOTE CONTROL KEY
Set the receive channel.
Names of keykey
For setting, refer to the OPERATING INSTRUCTIONS.
INFORMATIONiiii
(6) User settings
Check the user setting values of Table 2, and if setting value isMUTING
different, set the correct value.
For setting, refer to the OPERATING INSTRUCTIONS.
MENUOK
(7) Setting of SERVICE MENU1
Verify the setting items of the SERVICE MENU of Table 3, and resetFUNCTION UP/DOWN
where necessary.1
For setting, refer to the SERVICE ADJUSTMENTS.
1
FUNCTION -/+1
No. 519419 |
ACEC
