1-12 (No.YA655<Rev.001>)
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
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 and
[MUTING]
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.
* Input PAL White Raster signal 75% ( Y = 525 mV and SYNC
= 0.3 V ) at VDO 2 for adjustment.
SERVICE MODE SCREEN
Fig.3-3
SYSTEM CONSTANT SETTING
Symbol Number of pins
Mounting PWB
Main content of data
IC7002
8-pin
DIGITAL PWB
Setting value of
IC7001
(MAIN CPU) is memorized.
IC7003
8-pin
DIGITAL PWB
Programming data of
IC7001
(MAIN CPU) is memorized.
Setting mode
Iitem No.
Setting items
Settings
1.ADJUST
S001
R DRIVE MID
Do not adjust
S002
G DRIVE MID
Adjust
(Do not over 128)
S003
B DRIVE MID
Adjust
(Do not over 128)
S004
R DRIVE COOL Do not adjust
S005
G DRIVE COOL Do not adjust
S006
B DRIVE COOL Do not adjust
S007
R DRIVE WARM Do not adjust
S008
G DRIVE WARM Do not adjust
S009
B DRIVE WARM Do not adjust
Setting item
Setting value
1.No Sound
No
2.HDMI Mode
YES
3.Clear SD
RV
SERVICE MODE SCREEN
Press [1] key
Press [8] key
ADJUST MODE SCREEN
SERVICE MENU Ver.xxx
1. ADJUST
2. SELF CHECK
3. I2C STOP
S001 R DRIVE MID
128
PAL FULL STD
M
System Constant
1. No Sound
: xxx
2. HDMI Mode
: xxx
3. Clear SD
: xxx
Version
Model=FU UltraMulti
Soft=x.xx, E2PROM =xxxx
Trans ver=x.xx
Para ver=xxxxxx
Date=xxxxxxx
SYSTEM CONSTANT SCREEN
