JVC AV-29L6SU Service Manual page 9

3.2 MEMORY IC REPLACEMENT
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.2.1 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug from the
AC outlet.
2. Replace the memory IC
Be sure to use the memory IC written with the initial setting
values.
3. Power on
Connect the power plug to the AC outlet and switch on the
power.
4. System constant check and setting
* It must not adjust without signal.
(1) Press the [INFORMATION] key and the [MUTING] key
of the REMOTE CONTROL UNIT simultaneously.
(2) The SERVICE MENU screen will be displayed (Fig. 1).
(3) While the SERVICE MENU is displayed, press the
[INFORMATION] key and [MUTING] key simultaneously,
and the SYSTEM CONSTANT SET screen will be
displayed (Fig. 2).
(4) Check the setting values of the SYSTEM CONSTANT
SET. If the value is different, select the setting item with
the [FUNCTION
with the [FUNCTION
(5) Press the [OK] key to memorize the setting value.
(6) Press the [INFORMATION] key twice, and return to the
normal screen.
5. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS and set the
receive channels (Channels Preset) as described.
6. User settings
Check the user setting items according to the given in page
later. Where these do not agree, refer to the OPERATING
INSTRUCTIONS and set the items as described.
7. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is
necessary (Fig.1). Refer to the SERVICE ADJUSTMENT for
setting.
3.2.2 SYSTEM CONSTANT SETTING
Setting item
1.DESTINATION
2.PICTURE TILT
/ ] key, and set the correct value
/ ] key.
Setting content
EU / EK / EI
YES / NO
MUTING
INFORMATION
FUNCTION
/
Setting value
EU
YES
SERVICE MENU SERVICE MENU
1.IF 1.IF 2.V/C 2.V/C
3.AUDIO 3.AUDIO 4.DEF 4.DEF
5.VSM PRESET 6.STATUS 5.VSM PRESET 6.STATUS
7.SHIPPING(OFF) 7.SHIPPING(OFF)
1-7: SELECT i:EXIT 1-7: SELECT i:EXIT
Fig.1
SYETEM CONSTANT SET SYETEM CONSTANT SET
MODEL=MR EURO(0.37) MODEL=MR EURO(0.37)
E2PROM=V0.14 E2PROM=V0.14
1.DESTINATION:EU 1.DESTINATION:EU
JVC MR EURO V00 JVC MR EURO V00
VCTP VCTP
- + - + OK:STORE OK:STORE i:EXIT i:EXIT
Fig.2
OK
FUNCTION
/
(No.YA366)1-9