Read Sony KE-50MR1 Service Manual online
KE-50MR1(AEP)
2-1
<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.
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
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. Readjustment of A/D converter and Video decoder
calibration
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.
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.
Detection setting value 47 ±1
SECTION 2
ADJUSTMENTS
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.
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.
Detection setting value Y: 47 ±3
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.
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 values.
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 values.
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.
1
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