Sony TRINITRON KV-21FA310 - Page 35

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KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
Display Position Adjustment (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Select DISP with
1
and
4
.
4. Adjust values of DISP with
3
and
6
to adjust characters to the
center.
5. Press
MUTING
then
ENTER
to save into the memory.
6. Check to see if the text is displayed on the screen.
service micro disp 48
ntsc
vchp
Category
Display
Item
Mode
Item
Data
Signal
Type
00000000 00000000
Sub Bright Adjustment (SBRT)
1. Input a monoscope signal.
2. Activate the Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Select the SBRT item with
1
and
4
.
5. Adjust the values of SBRT with
3
and
6
to obtain a faintly visible
crosshatch.
6. Press
MUTING
then
ENTER
to save into the memory.
Sub Hue, Sub Color Adjustment
(SHUE, SCOL)
1. Input color-bar signal at 75%.
2. Activate the Service Adjustment Mode.
3. Set (PIC) to Max and (COL) to 50%.
4. Connect an oscilloscope probe to CV Board, CN301Pin
4
Blue Out.
5. Select the SHUE and SCOL item with
1
and
4
.
6. While showing the SHUE item, adjust the waveform with
3
and
6
until the second and third bars show the same level
(V2 = V3 < 0.15Vp-p). Set Sub Hue -2 Step.
7. While showing the SCOL item, adjust the waveform with
3
and
6
until the fi rst and fourth bars show the same level
(V1 = V4 < 0.15Vp-p). Set Sub Col +3 Step.
V1
V2 V3
V4
8. Press
MUTING
then
ENTER
to save into the memory.
V. Size Adjustment (VSIZ)
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VSIZ item with
1
and
4
.
4. Adjust value of VPOS with
1
and
4
for the best vertical center.
5. Press
MUTING
then
ENTER
to save into the memory.
V. Center Adjustment (VPOS)
Perform this adjustment after performing H. Frequency
(Free Run) Check.
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the VPOS item with
1
and
4
.
4. Adjust value of VPOS with
3
and
6
for the best vertical center.
5. Press
MUTING
then
ENTER
to save into the memory.
H. Center Adjustment (HPOS)
Perform this adjustment after performing H. Frequency
(Free Run) Check.
1. Input a crosshatch signal.
2. Activate the Service Adjustment Mode.
3. Select the HPOS item with
1
and
4
.
4. Adjust the value of HPOS with
3
and
6
for the best horizontal
center.
5. Press
MUTING
then
ENTER
to save into the memory.