AV-27D303
AV-27D203
MEMORY IC REPLACEMENT
1. Memory IC
This TV uses memory IC.
This memory IC stores data for proper operation of the video and deflection circuits.
When replacing the memory IC, be sure to use an IC containing this (initial value) data.
2. Memory IC replacement procedure
(1) Power offSERVICE MENU
Switch off the power and disconnect the power cord from the outlet.
SERVICE MENU
1.V/C(S) 2.DEF(D)
(2) Replace the memory IC3.SOUND(A) 4.OTHERS(F)
Be sure to use a memory IC written with the initial setting data.5.PIP(PIP) 6.3L Y/C(LYC)
7.LOW LIGHT 8.HIGH LIGHT
9.RF AFC 10.VCO
(3) Power on11.I2C BUS 12.SYSTEM(SYS) Verified
Connect the power cord to the outlet and switch on the power.
SELECT BY
OPERATE BY EXIT BY EXIT
(4)Confirm the system constant valueFig.1
" 12.SYSTEM (SYS) do not adjust normally.
" The adjustment should not be done without signal.
12.SYSTEM(SYS)
! How to enter the SYSTEM (SYS).
1) Press the SLEEP TIMER key and set SLEEP TIMER for 0 min
.
2) Before disappear the display of SLEEP TIMER settings, simultaneously
press the DISPLAY key and VIDEO STATUS key of the remote controlSETTING ITEM
unit.
3) The SERVICE MENU screen of Fig.1 is displayed.
4) While the SERVICE MENU is displayed, select the SYSTEM(SYS) item
with MENU1/2 (CH-/+) keys, and the MENU / (VOL-/+) keys isSYS01 VIDEO IN***
pressed, the screen will be displayed as shown in Fig.2.
5) Refer to the SYSTEM (SYSTEM CONSTANT) TABLE 1 and check the
Fig.2
setting items. If the value is different, select the setting item with theSETTING NoSETTING VALUE
MENU 1 / 2 (CH-/+) keys and adjust the setting with the
MENU / (VOL-/+) keys. (The letters of the selected item are
displayed in yellow.)
6) When adjustment has completed, the values store into memory IC
automaticallyKEY ASSIGNMENT OF REMOTE CONTROL UNIT
7) Press the EXIT key twice to return the normal screen.
DISPLAY
(5) Receive channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and set
the receive channels (Channels Preset) as described. SLEEP
TIMER
(6) User settings VIDEO
Check the user setting items according to TABLE 2.STATUS
MENU
Where these do not agree, refer to the OPERATING INSTRUCTIONS
(USER'S GUIDE) and set the items as described. MENU 1/2
/
EXIT
(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.
10No. 51940 |
ACEC
