— 26 —
KV-27FS12/27FS16/29FS12/29FS12C
3. Activate the Service Adjustment Mode.4. Set both GON and
BON items. Using
and
; set each to the following
values. Leave RON set to “1”.
SERVICE RON 1
1: ON
0: OFF
R ON:
ON
(1)
G ON:
OFF (0)
B ON:
OFF (0)
5. Connect an oscilloscope probe to CA Board, J701 Pin 12
(KR) (Red Out) .
6. Select RDRV with
and
.
7. Adjust the value of RDRV with
and
for
92.5 ± 3 VDC.
92.5 – 3 VDC
8. Reset GON and BON values to “1”.
R ON:
ON
(1)
G ON:
ON
(1)
B ON:
ON
(1)
9. Press
then
to save into the memory.
Display Position Adjustment (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Select DISP with
and
.
4. Adjust values of DISP with
and
to adjust characters
to the center.
5. Write to memory by pressing
then
.
6. Check to see if the text is displayed on the screen.
SERVICE DISP 15
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
and
.
5. Adjust the values of SBRT with
and
to obtain a faintly
visible crosshatch.
6. Press
then
to save into the memory.
Sub Hue, Sub Color Adjustment (CHUE, CCOL)
1. Input a color-bar signal.
2. Activate the Service Adjustment Mode.
3. Connect an oscilloscope probe to CA Board, CN1752
Pin
.
4. Select the CHUE and CCOL item with
and
.
5. While showing the CHUE item, adjust the waveform with
and
until the second and third bars show the same level
(V2 = V3 < 0.1 Vp-p).
6. While showing the CCOL item, adjust the waveform with
and
until the first and fourth bars show the same level
(V1 = V4 < 0.1 Vp-p).
V1
V2 V3 V4
7. Press
then
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
and
.
4. Adjust value of VPOS with
and
for the best vertical
center.
5. Press
then
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
and
.
4. Adjust value of VPOS with
and
for the best vertical
center.
5. Press
then
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
and
.
4. Adjust the value of HPOS with
and
for the best
