Sony KE-50MR1 Service Manual ▷ View online
KE-50MR1(AEP)
1-14
1-2-8. H1 BOARD REMOVAL
1
Two screws
(+BVTP 3X12)
2
H1 Board
1
Two screws
(+BVTP 3X12)
Front panel
KE-50MR1(AEP)
1-15
1-2-9. H4 BOARD REMOVAL
1
Two screws
(+BVTP 3X12)
2
H4 Board
Front panel
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
KE-50MR1(AEP)
2-2
2-1-4. AD adjustment of CVBS Video (NTSC) system
1)
Set input to AV1.
2)
Input NTSC All White Signal 90IRE in AV1.
3)
Set picture quality mode to [PC/GAME].
Send “RGB Level” Command.
Send “RGB Level” Command.
4)
Adjust Y_OUT_LEVEL until the Green detection value is within a setting value.
Detection setting value 197 ±3
5)
Set Video Signal to NTSC All Gray 20IRE.
6)
Adjust Cb_OFFSET1 until the detection value of Blue becomes same as that of Green.
7)
Adjust Cr_OFFSET1 until the detection value of Red becomes same as that of Green.
8)
Repeat step 6-7 until it is in a detection setting value of 8).
Detection setting value 44
R,G,B detection value dispersion: ±1
R,G,B detection value dispersion: ±1
9)
Repeat step 2-7 until it is in the detection setting value of 4) and 8).
10) Input NTSC 75% Color Bar signal into AV1.
11) Adjust C_OUT_LEVEL until the detection value of (A) becomes same as that of (D), as
11) Adjust C_OUT_LEVEL until the detection value of (A) becomes same as that of (D), as
shown in the right figure (2).
12) Adjust Hue until the detection value of (B) becomes same as that of (C), as shown in the right
figure (3).
13) Repeat step 11)-12) until the detection value of (A), (B), (C) and (D) becomes the same, as
shown in the right figure (4).
+2
–6
–6
75% Color Bar
(A)
(B)
(C)
(D)
x
x
x
x
Wh Ye Cy G Mg R
Bl Bk
Cautions :
figure (1)
The position of (A) excepts between
for 1/16 from an edge.
for 1/16 from an edge.
(A)
(B)
(C)
(D)
figure (2)
ML board CN304
3
pin
Blue output
(A)
(B)
(C)
(D)
figure (3)
ML board CN304
3
pin
Blue output
(A)
(B)
(C)
(D)
figure (4)
ML board CN304
3
pin
Blue output
Click on the first or last page to see other KE-50MR1 service manuals if exist.