JVC AV-2106TE Service Manual page 7

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 adjustment signals.
(1) Press the [DISPLAY] key and the [PICTURE MODE]
key of the REMOTE CONTROL UNIT simultaneously.
(2) The SERVICE MENU screen of Fig. 1 will be displayed.
(3) While the SERVICE MENU is displayed, again press the
[DISPLAY] key
simultaneously, and the SYSTEM CONSTANT SET
screen of Fig. 2 will be displayed.
(4) Check the setting values of the SYSTEM CONSTANT
SETTING. If the value is different, select the setting item
with the [MENU / ] key, and set the correct value with
the [MENU - / +] key.
(5) Press the [DISPLAY] 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 MENU setting
Verify what to set in the SERVICE MENU, and set whatever is
necessary (Fig.1).
Refer to the SERVICE ADJUSTMENT for setting.
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
SYSTEM
COLOUR
TV/VIDEO
OFF
TIMER
CHANNEL
SCAN
DISPLAY key DISPLAY
MENU
- / + key
CHANNEL
and [PICTURE MODE]
POWER
PICTURE
PICTURE
SOUND MODE
MODE key
1 2 3
NUMBERS
4 5 6
key
7 8 9
+
- / --
RETURN 0
MUTING MENU
/ key
MENU MENU
VOLUME
1.IF
3.DEF
5.PRESET
6.SETUP TOUR OFF
1-6 : SELECT
************
key
SYSTEM CONSTANT SET 1
COLOUR
BILINGUAL
TUNER
ECO SENSOR
LANGUAGE
/
- / + : OPERATE
SYSTEM CONSTANT SET 2
B/B SOUND
LOCK
COLOUR AUTO : NO
QSS
ALC
TEXT RATE
/
SYSTEM CONSTANT SET 3
AMP TUNER
VNR
TEXT TABLE
VOLUME PWM
/
SERVICE MENU
2.V/C
4.VSM PRESET
DISP : EXIT
**.***
*** ** **** ***
Fig.1
SYSTEM CONSTANT- I
: TRIPLE
: NO
: MU
: NO
: E/R/U
: SELECT
DISP : EXIT
SYSTEM CONSTANT- II
: OFF
: 180
: MINT
: NO
: 20
: SEL - / + : OPE DISP : EXIT
SYSTEM CONSTANT- III
: NO
: YES
: CYL
: POS
: SEL - / + : OPE DISP : EXIT
Fig.2
(No.YA394)1-7