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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.
Pass code:
Enter in the standby state (when the red LED lights) as follows:
Screen display → 5 → Vol + → Power ON
== Service Mode Menu ==
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 (1024 × 768) All White 90IRE in D-sub 15 pin input.
2) Set picture quality mode to [PC/GAME].
Send "RGB Level" Command.
3) Adjust RGB Gain and set the detection value of RGB to setting values.
Detection setting value: 212 ±3
4) Set RGB signal to VGA (1024 × 768) All Gray 20IRE.
5) Adjust RGB Offset and set the detection value of RGB to 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.
SECTION 2
ADJUSTMENTS
2-1-3. AD Adjustment of Component (other 15k) System
1)
2)
3)
4)
5)
6)
7)
8)
9)
10) Adjust B Offset and set the detection value of Cb to setting values.
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 values.
14) Set Component Signal to 1080/60i All Black 0IRE.
15) Adjust R Offset and set the detection value of Cr to setting values.
16) Repeat step 12-15 until it is in a detection setting value.
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Input 1080/60i All White 90IRE in AV4 or 5 input.
Set picture quality mode to [PC/GAME].
Send "RGB Level" Command.
Adjust G Gain and set the detection value of Y to setting values.
Detection setting value Y: 212 ±3
Set Component Signal to 1080/60i All Gray 20IRE.
Adjust G Offset and set the detection value of Y to setting values.
Detection setting value Y: 47 ±1
Repeat step 1-5 until it is in a detection setting value.
Set Component Signal to 1080/60i All Blue 90IRE.
Adjust G Gain and set the detection value of Cb to setting values.
Detection setting value Cb: 234 ±3
Set Component Signal to 1080/60i All Black 0IRE.
Detection setting value Cb: 128 ±1
Detection setting value Cr: 234 ±3
Detection setting value Cr: 128 ±1
KE-MR42/50M1(CH) 2-1
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