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KV-EF34N90
RM-913
4-4. A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
When replacing IC003 (MEMORY), be sure to change IC001 (µ-
COM) to the following new IC at the same time.
1. Enter to Service Mode.
2. Press commander buttons
5
and
-
(Data Initialize), and
2
and
-
(Data Copy) to initialize the data.
3. Call each item number and check if the respective screen shows
the normal picture.
In cases where items are not well adjusted, rectify the items
with fine adjustment.
Write the data per each item number (
[MUTING]
+
-
).
4. Select item numbers “OPB0” (OP1), “OPB1” (OP2) and
“OPB2” (OP3) and respectively set the bit per model with
command buttons
3
and
6
.
5. Press commander buttons
8
and
-
(Test Normal) to return
to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)
KV-EF34N90
CXP750097-008S
MODEL
IC001 (µ-CON)
Y LEVEL (SUB PICTURE) ADJUSTMENT
1. Input a PAL colorbar signal.
2. Set to TWIN PICTURE mode.
3. Connect an oscilloscope to pin
2
(R-out) of CN705 on the C
board.
4. Adjust VR5301 on B board so that white level of main picture
and sub picture becomes same level.
HUE LEVEL (SUB PICTURE) ADJUSTMENT
1. Input a NTSC colorbar VIDEO signal.
2. Set to TWIN PICTURE mode.
3. Connect an oscilloscope to pin
2
(R-out) of CN705 on the C
board.
4. Select SVP (02) SHU with
1
and
4
of the commander so
that waveform of main picture and sub picture become same
level.
5. Press MUTING
n
-
on the commander to write the data
with SVP (02) "SHU" Video mode and TV mode.
H-TRAPIZIUM ADJUSTMENT
1. Input a cross hatch/dot signal.
2. Adjust RV1801 on C board to make H-Trapizoid distortion best.
