Read Sony KE-42MR1E / KE-50MR1E Service Manual online
KE-42/50MR1E (HK/ME) 2-1
SECTION 2
ADJUSTMENTS
2-1. Readjustment of A/D converter and
Video decoder calibration (MBT-MR1C)
<Service Mode>
The service mode is not displayed in the normal state. It is
displayed by entering a pass code.
All hidden menus are displayed when you enter the pass code
below.
The uppermost item of the displayed menus is a service mode
menu.
displayed by entering a pass code.
All hidden menus are displayed when you enter the pass code
below.
The uppermost item of the displayed menus is a service mode
menu.
Pass code: Enter in the standby state (when the red LED lights)
as follows:
Screen display
→
5
→
Vol +
→
Power ON
== Service Mode Menu ==
1)
1)
EEP ROM Initialize
2)
Chroma Decoder
3)
AD Converter
4)
White Balance
5)
General
6)
Manual Control
7)
Preset Edit
8)
Service Status
2-1-1. Adjustment preparation
1)
Connect J board via AV mouse.
2)
Set Factory Service mode useing AdjCon.xls.
3)
Set Thunder to Through mode. (P board)
2-1-2. AD adjustment of RGB System
1)
Input VGA (640
×
480/60) All White 90IRE in D-sub 15 pin
input.
2)
Set picture quality mode to [PC/GAME].
Send “RGB Level” Command.
Send “RGB Level” Command.
3)
Adjust RGB Gain and set the detection value of RGB to
setting values.
setting values.
Detection setting value: 212
±
3
4)
Set RGB signal to VGA (640
×
480/60) All Gray 20IRE.
5)
Adjust RGB Offset and set the detection value of RGB to
setting values.
setting values.
Detection setting value: 47
±
1
6)
Repeat step 1-5 until it is in a detection setting value.
*
Perform this only when the value has shifted in previous
“Check of A/D converter and video decoder calibration”
check.
“Check of A/D converter and video decoder calibration”
check.
2-1-3. AD adjustment of Component (other 15k)
system
1)
Input 1080/60i All White 90IRE in AV5 input.
2)
Set picture quality mode to [PC/GAME].
Send “RGB Level” Command.
Send “RGB Level” Command.
3) Adjust G Gain and set the detection value of Y to setting
values.
Detection setting value Y: 212
±
3
4)
Set Component Signal to 1080/60i All Gray 20IRE.
5)
Adjust G Offset and set the detection value of Y to setting
values.
values.
Detection setting value Y: 47
±
1
6)
Repeat step 1-5 until it is in a detection setting value.
7)
Set Component Signal to 1080/60i All Blue 90IRE.
8)
Adjust G Gain and set the detection value of Cb to setting
values.
values.
Detection setting value Cb: 234
±
3
9)
Set Component Signal to 1080/60i All Black 0IRE.
10) Adjust B Offset and set the detection value of Cb to setting
values.
Detection setting value Cb: 128
±
1
11) Repeat step 7-10 until it is in a detection setting value.
12) Set Component Signal to 1080/60i All Red 90IRE.
13) Adjust R Gain and set the detection value of Cr to setting
12) Set Component Signal to 1080/60i All Red 90IRE.
13) Adjust R Gain and set the detection value of Cr to setting
values.
Detection setting value Cr: 234
±
3
14) Set Component Signal to 1080/60i All Black 0IRE.
15) Adjust R Offset and set the detection value of Cr to setting
15) Adjust R Offset and set the detection value of Cr to setting
values.
Detection setting value Cr: 128
±
1
16) Repeat step 12-15 until it is in a detection setting value.
2
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