Sony SDM-M51 (serv.man3) Service Manual ▷ View online
ALIGNMENT PROCEDURE
Equipment Required
Computer: PC workstation with Windows 95/98/2000 installed
PS/2 mouse is required
Software:
Engineering alignment software tool same as L200
Color meter:
Topcon BM-7 or equivalent
Signal generator:
VG-819 or equivalent
Cable:
RS232 interface cable same as L200
Monitor Setup
1. Entering maintenance mode by hold the “+” & “-“ key and press power switch.
Hardware Install
1. Copy software <ALIGN.EXE> into a new PC directory.
2. Prepare timing & pattern data full white for signal generator according to present
timing.
3. Prepare timing files for <ALIGN.EXE>.
4. Connect monitor RS-232 interface cable between monitor and PC’s COM port.
5. Connect monitor video cable to signal generator.
6. Put Topcon BM7 50cm from the UUT; Point it perpendicularly at the center of the
display; Achieve the best focus through the eyepiece.
7. Enclose the UUT & Topcon BM7 in a light-shielded chamber.
Software Setup
1. Execute software <ALIGN.EXE>.
2. Click on [Setup] menu.
3. Select [Monitor] type as [L200]; select ‘Color Analyzer’ type & ‘Video Signal
Generator’ type.
4. Select [COM PORT] according to hardware connection.
5. Click [OK] to save the new setup configuration.
6. Quit this application and Re-enter to make the new setting effective.
On Screen Adjustment
1. Click [Monitor] icon; an virtual monitor panel would show up.
2. When entry, the software tries to establish a communication link with the monitor.
The monitor internal DACs are read and shown on screen sliders. A [CONNECT]
icon would show up on the lower left corner of the dialog screen.
3. An error message would pop up should communication fail. A [BREAK] icon
would show up on the dialog screen. If this happens, check the hardware setup,
communication cable, and the connection.
Warm up time
Allow 30 minutes warm up time before doing any adjustment.
Adjustment procedure
Step 1
· Set up Video 100% IRE.
· Adjust [Brightness] control to [Max].
· Adjust [Contrast] control to [Max].
· Measure [Luminance] as A.
· Perform [Monitor reset]. i.e. Brightness 50%, Contrast 70%.
· Adjust [Contrast] to [A-10 +/- 8] cd/m2.
· Click [Contrast save].
Step 2
· Set up Video 60% IRE.
· Keep [SUB_BRT_G] as 148, unchanged.
· Adjust [SUB_BRT_R] & [SUB_BRT_B] for 9300K, refer to Table 2 for color
specifications.
· Click [Color save].
Step 3
· Repeat step 2 for 6500K & 5000K.
Step 4
· Click [Contrast save].
· Click save all.
SDM-M51
Table 1: Initial data for color adjustment
Color 9300K 6500K 5000K
Condition Min Center Max Min Center Max Min Center Max
Brightness(G) 20 70
255 20 70
255 20
70
255
Contrast(G) 2 80 128
2
80 120 2 80
128
Sub-Brt-R
NA
76
NA
NA 70
NA NA 96 NA
Sub-Brt-B
NA
81
NA
NA
77 NA NA
61
NA
Sub-Cont-R NA
80
NA
NA
80 NA NA
80
NA
Sub-Cont-B NA
80
NA
NA
80 NA NA
80
NA
Table 2: Specifications for color adjustment, based on Topcon BM-7
Color
x y
9300
283 298
6500
314 328
5000
345 358
Tolerance:
5 5
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