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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 TABLE
Symbol Number of pins
IC7002
8-pin
IC7003
8-pin
3.2.2 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. SERVICE MODE SETTING [SYSTEM CONSTANT SETTING]
(1) Press
the
[DISPLAY] key
simultaneously, then enter the SERVICE MODE.
(2) Press the [8] key, then enter the SYSTEM CONSTANT
SET SCREEN.
(3) Check the setting values of the SYSTEM CONSTANT
SET. If the value is different, set the correct value with
the [FUNCTION
/ ] key.
5. RECEIVING CHANNEL SETTING
Refer to the OPERATING INSTRUCTIONS and set the
receive channels (Channels Preset) as described.
6. USER SETTING
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 [ADJUST MODE SETTING]
Verify what to set in the SERVICE MODE, and set whatever is
necessary (Fig.3-3). Refer to the SERVICE ADJUSTMENT for
setting.
Setting mode
Iitem No.
1.ADJUST
S001
S002
S003
S004
S005
S006
S007
S008
S009
* Input PAL White Raster signal 75% ( Y = 525 mV and SYNC
= 0.3 V ) at VDO 2 for adjustment.
1-12 (No.YA655<Rev.001>)
Mounting PWB
DIGITAL PWB
DIGITAL PWB
and
[MUTING]
Setting items
Settings
R DRIVE MID
Do not adjust
G DRIVE MID
Adjust
(Do not over 128)
B DRIVE MID
Adjust
(Do not over 128)
R DRIVE COOL Do not adjust
G DRIVE COOL Do not adjust
B DRIVE COOL Do not adjust
R DRIVE WARM Do not adjust
G DRIVE WARM Do not adjust
B DRIVE WARM Do not adjust
Main content of data
Setting value of
IC7001
Programming data of
IC7001
SERVICE MODE SCREEN
SERVICE MODE SCREEN
SERVICE M ENU
1. ADJUST
2. SELF CHECK
3. I2C STOP
key
Press [8] key
SYSTEM CONSTANT SCREEN
SYSTEM CONSTANT SETTING
Setting item
1.No Sound
2.HDMI Mode
3.Clear SD
(MAIN CPU) is memorized.
(MAIN CPU) is memorized.
Ver.xxx
Press [1] key
ADJUST MODE SCREEN
S001
R DRIVE MID
PAL
FULL
ST D
M
Sys tem Co nsta nt
1. No Sou nd
: xxx
2. HDMI Mod e
: xxx
3. Clear SD
: xx x
Version
Mo del=F U UltraMu lti
Soft=x .x x, E2 PRO M =x xxx
Trans ve r=x.xx
Para v er=xxx xxx
Date=xxx xxxx
Fig.3-3
Setting value
No
YES
RV
128
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