DOWNLOAD Sony SDM-M81 (serv.man3) Service Manual ↓ Size: 1.39 MB | Pages: 45 in PDF or view online for FREE

 
 
 

SECTION 3 

ADJUSTMENTS 

 
 

3-1. FUNCTIONAL ALIGNMENT (1) 
 
• Procedures of how to go to service mode. 
 
1. Hold “+” and “ -” key power on, SDM-M81 goes into service mode. 
2. Press “MENU” key-----ODS display. 
3. Press “-” key to go to second page’s late icon.  
4. Press “OK” key-----service menu display. 
5. Select one of features. 
6. Press “MENU” key to exit OSD.  
7. Power OFF then ON again, monitor go to normal mode. 
 
If you would like to enter service mode again, performing the above procedures cycle. 
 
 

       

Note 
1. N/A means “Not applied”.  
2. This service menu only provides both Configuration & Sync slice functions. 

This other were used for design engineering.  There is no guarantee of using those N/A functions. 

 

CHIPS 

TMDS 

 

(N/A) 

 

(N/A) 

PRESET B/C/C 

EEPROM TEST 

 

 

 

(N/A) 

(N/A) 

BRT 1 

CON 1 

BRT 2 

CON 2 

SUB-BRIGHTNESS 

R 

G 

B 

SUB-CONTRAST 

R 

G 

B 

 

 

 

(N/A) 

(N/A) 

 

  

On 

  

Off 

 

 

 

(N/A) 

(N/A) 

 

OK 

DIGITAL 

ANALOG 

INITIAL EE PRM 

PERFORM 

 
 
 

 

 
 

3-2. FUNCTIONAL ALIGNMENT (2) 
 
This paper documents the functional alignment (Used Color          
meter) procedure of Sony LCD monitor SDM-M81. 
 
• Equipment 
 
Computer:      PC workstation with Windows 95 installed 

                

PS/2 mouse is required 

Software:

   

    KSi Engineering alignment software tool 

Color meter:

       

Option 

Signal generator: Option 
Cable:         Special RS232 interface cable 
 
• Setup 
 
1. Copy ECS software <ALIGN.EXE> into a new PC 

directory. 

2. Prepare timing & pattern data for signal generator according 

to Sony’s timing specifications.  

3. Prepare timing files for <ALIGN.EXE>. 
4. Connect monitor interface cable between flat panel monitor 

and PC com port. 

5. Connect monitor video cable to signal generator. 
6. Put Topcon 50cm from the monitor; Point it perpendicularly 

at the center of the display; Achieve the best focus through 
the eyepiece. 

7. Enclose the monitor and Topcon in a light-shield chamber. 
8. Set up [SERVICE MODE] of the monitor. 
 
• Download 

  

In order to enhance productivity, a software utility is 
provided 

  

to download default data to LCD monitor. The default data 
includes color balance data and geometry timing data. 

  
• Operation 
 
1. Execute software <ALIGN.EXE>. 
2. Click on ‘Setup’ menu.  
3. Select ‘Monitor’ type as ‘Sony SDM -M81’.  
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 settings 

effective. 

 
• On Screen Adjustment 
 
1. Click on the ‘Monitor’ icon; an virtual monitor panel would  

show up. 

2. On 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 adjust- 
ment. 

 
• Color Adjustment 
 
1. 9300K color adjustment 

--Center adjustment-- 

a. Click ‘Color Temperature’ as ‘9300’.  
b. Apply 40% IRE white video field, primary mode. 
c. Make sure ‘backlight’ register data is 0 (100%).  
d. Click ‘Refresh’.  
  Refer to table 1 for default data for color adjustment. 
e. Adjust ‘sub_brt_B’ to achieve color temperature.  
  Refer to table 2 for specification. 
f. Click ‘Save this color’ for a 9300K color save.  

 

2. 5000K color adjustment 

a. Click ‘Color Temperature’ as ‘5000’.  
b. Repeat alignment procedure as 9300 steps b-f. 
 

3. 6500K

 

color adjustment 

a. Click ‘Color Temperature’ as ‘6500’.  
b. Repeat alignment procedure as 9300 steps b-f. 

 
• Geometry Adjustment 
 
1. Connect the personal computer which has alignment data. 
2. Click ‘Refresh’ (inside Geometry Register Box).  
3. Adjust ‘Pitch’ for  optimum screen performance. 
4. Adjust ‘Phase’ for optimum screen performance.  
5. Adjust ‘H position’ to make the screen center horizontally.  
6. Adjust ‘V position’ to make the screen center vertically.  
7. Repeat steps 3-6 for best picture performance. 
8. Click ‘Save Geom etry’ to perform a user timing mode save.  
9. Repeat step 1-7 for each of the user present timings.