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REPLACEMENT OF MEMORY ICs
1. MEMORY ICs
This TV uses memory IC. In the memory IC, there are memorized data
for c orrec tly operating the video and deflection circuits.
When replac ing the memory IC, be sure to use an IC written with the
initial values of data.
2. PROCEDURES FOR REPLACING MEMORY ICs
(1) Power off
Switch the power off and disconnect the power plug.
(2) Replace ICs.
Be sure to use a memory IC written with the initial setting data.
(3) Power on
Connect the power plug and switc h the power on.
(4) Check and set SYSTEM CONSTANT SET
" The adjustment should not be done without signal.
1) Press the INFORMATION key and the MUT ING key of the
REMOTE CONTROL UNIT simultaneous ly.
2) The SERVICE MENU screen of Fig. 1 will be displayed.
3) While
the
SERVICE
INFORMATION key and MUTING key s imultaneously, and the
SYSTEM CONSTANT SET screen of Fig. 2 will be display ed.
4) Check the setting values of the SYSTEM CONSTANT SET of
Table 1. If value is different, selec t the setting item with the
FUNCTION ▲ ▲ ▲ ▲ / ▼ ▼ ▼ ▼ key, and set the c orrect value with the
FUNCTION
/
5) Press the MENU(OK) key to memorize the setting value.
6) Press the INFORMATION key, and return to the normal screen.
(5) Setting of receive channels
Set the rec eive channel.
For setting, refer to the OPERATING INSTRUCTIONS.
(6) Setting of SERVICE MENU
Verify the setting items of the SERVICE MENU of Table 2, and reset
where necessary.
For setting, refer to the SERVICE ADJUSTMENTS.
(7) User settings
Check the us er setting values of Table 3, and if setting value is
different, set the c orrec t value.
For setting, refer to the OPERATING INSTRUCTIONS.
PROCEDURE
MENU
is
displayed,
key.
1. DEST INATION
press
the
REMOTE CONTROL UNIT KEY ASSIGNMENT
MUTING
INFORMATION
FUNCTION
▲/▼
No. 51955
SE RV ICE ME NU
1. IF
2. V/C
3. AUDIO
4. DEF
5. VSM PRESET
6. STATUS
7. PIP
8. - - -
9. SHIPPING (OFF) 0. BUS FREE
1-0 : SELECT
i
: EXIT
Fig.1
SY STEM C ON STAN T S ET
E
+
: STORE
i
: EXIT
O K
Fig.2
2. DIGIPURE PRO
YES
3. PIP
1 TUNER
4. PIC & T EXT
YES
5. TDA9178
YES
6. FLAT
YES
AV42PD20ES
POWER Key
MENU
FUNCTION
/
17
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