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Service Manual

 

 

 

                                                                                                                                                                                S762A

 

 

9

Horizontal frequency                                                            30KHz to 80KHz                         

 

 

Refresh rate                                                                          59Hz to 75Hz                                 

         

3.5  Audio Module (S762A/S761A/S760A) 

   

    3.5.1. Type:                                                    Stereo BTL audio output amplifier with DC volume control 

                                                                                  with two 1W speakers. 

 
       

3.5.2. Input Level:                                          1Vrms 

 
        3.5.3. Output Power:                                      1W * 2 (10% THD, 1KHz) 
 
        3.5.4. Total Harmonic Distortion (THD):      0.3% (Typ.) (0.5W * 2, 1KHz) 
 
    3.5.5. Frequency Response 

±

3dB:      550Hz ~ 20KHz 

 
        3.5.6. Channel unbalance (output power): 1dB (max.) 

 

3.6 User Controls and Indicator 

 

3.6.1 Power ON/OFF Switch   
 
3.6.2 LED Indicator 
 
3.6.3 OSD 
 
3.6.3.1 Buttons   
 
3.6.3.2 OSD Menu Level 
 
3.6.4 Hot Keys Function   
 

3.6.4.1 Contrast (

)

   

 
 

3.6.4.2 Brightness (

)

 

 

The switch control scaler power down and turn off panel. 
 
The LED color shall indicate power status as shown in 
paragraph 3.7 
 
 
ESC ,

▽ ,  △

,

     

 
See Table 2. 

S762A/S761A/S760A/S762/S761/S760 OSD Control 

Map 
 

 
 
Press “

” to pop up ;then press “

” or “

” to adjust Contrast 

up or down. 
 
Press “

” to pop up ;then press “

” or “

” to adjust 

Brightness up or down. 

 

*3.6.4.3 Mute On (

)  

 

*3.6.4.4 Mute Off (

)  

 
 
 
*3.6.4.5 In monitor power saving mode 
 

Press “Esc” directly to disable speakers, while speakers in 
normal state. 
 
Press “Esc” directly to enable speakers, while speakers in 
audio mute state. 
“Esc” key is for Mute On and Off function 
 

” key is for increasing volume function. 

” key is for decreasing volume function. 

“ESC” key is enable or disable audio mute.   

                      Note:* means S762A only 

 

Table 2 S762A OSD Control Map   

1.

VGA-D15 input:

 

Summary of Contents for S762A

Page 1: ...S762A SERVICE MANUAL The Monitor Specialists EDITION 1 DEC 2003 ...

Page 2: ...nual S762A 2 TABLE OF CONTENTS CONTENTS PAGE Sections 1 Scope 4 2 Input requirements 5 3 Electrical Characteristics 6 10 4 Trouble Shooting 11 16 5 Parts List 16 Appendix 1 Main Board Circuit Diagram 2 Assembly Explosion Drawing ...

Page 3: ...ss written permission of the publisher The publisher has been trying its best to make this publication perfect and in this manner takes no responsibility for the use of any of the materials or methods described in this manual or for the products thereof Neither will the publisher be responsible for any damages caused by misuse or misquotation Information in this manual is subject to change by the ...

Page 4: ...ter 5 Direct Acess function keys for contrast function for brightness function ESC for audio mute function S761A S762A S760A only 6 Green Amber LED indicator for power on power saving 7 Plug play support with DDC2B protocol installed 8 Power saving mode compliant with Energy Star 9 OSD on screen display MENU operation 9 1 Brightness adjustment 9 2 Contrast adjustment 9 3 Auto tune function VGA 9 4...

Page 5: ... function 2W Power switch off 1W Picture must not disappear while AC 100 V input drop out 10ms 100 10 max Permitted 50 A max at 240 Vac cold start Detachable 3P with ground type 2 2 Display Input 2 2 1 Analog Input RGB Video 2 2 1 1 Sync Signal Analogue 0 0 to 0 7 V peak to peak Separate RGB Input impedance 75 Ohm Positive polarity Separate horizontal vertical sync 3 3V 5V Low level 0 8 V maximum ...

Page 6: ...x 1024 array matrix a Si TFT active matrix 3 1 3 Gray scale 16 million colors 3 1 4 Surface treatment 3H hard coating anti static anti glare 3 1 5 Backlight Integral CCFL type to support field replacement Life time 30000 hours 25C 50 of initial value 3 1 6 Pixel Faults Model Project Pixel Faults type S762A S761A S760A S762 S761 S760 LBL17S24HA01 LBL17B24HA01 LBL17W24HA01 LBL17S24HA LBL17B24HA LBL1...

Page 7: ... 253 12 678 12 800 15 840 12 480 12 8 S ms Front Porch 0 318 0 237 0 027 0 026 0 770 0 021 Display Format VESA VESA VESA VESA VESA VESA Horizontal Dots 1024 1024 1024 1152 1280 1280 Vertical lines 768 768 768 864 1024 1024 Horizontal Frequency 48 363 56 746 60 023 67 5 63 981 79 976 Vertical Frequency Hz 60 004 70 069 75 029 75 60 013 75 025 Pixel Rate MHz 65 0 75 78 75 108 108 135 H Sync Polarity...

Page 8: ...C C CT T TX X X Service Manual S762A 8 3 3 Plug Play DDC 2B data transmission only for I2 C BUS interface card 3 4 Scanning characteristics VGA Video H Sync B C D E Video V Sync P Q R S ...

Page 9: ...6 4 1 Contrast 3 6 4 2 Brightness The switch control scaler power down and turn off panel The LED color shall indicate power status as shown in paragraph 3 7 ESC See Table 2 S762A S761A S760A S762 S761 S760 OSD Control Map Press to pop up then press or to adjust Contrast up or down Press to pop up then press or to adjust Brightness up or down 3 6 4 3 Mute On 3 6 4 4 Mute Off 3 6 4 5 In monitor pow...

Page 10: ...stment scale OSD Position Center Main Menu Reset Yes No Note means S762A S761A S760A only 3 6 5 Accessory OSD Indications Signal out of range An input signal which is outside the range defined in Section 3 4 shall cause the monitor to display a message Signal Out of Range No Signal Input and power down When the signal cable is not plugged into PC or when the horizontal or vertical sync are absent ...

Page 11: ...front bezel to indicate the power management states Status Sync Video Power consumption Power management Picture Recovery time LED Color Active Active With Audio 39W Without Audio 36W On Green No Sync Blanked 2W Note 1 Power saving 3 sec Amber Note 1 Audio function is operating at no signal input Once Esc or or key initiates under power saving condition the audio function can be waked up and the p...

Page 12: ...icator light Is backlight on Display performance OK O S D Adjustment OK Audio Function OK No Trouble Found End Yes Yes Yes Yes Yes 4 3 No Backlight Tr ouble shooting 4 4 Per for mance Tr ouble shooting 4 5 O S D Tr ouble shooting 4 6 Audio Tr ouble shooting No No No No 4 2 Power Circuit Trouble Shooting ...

Page 13: ...Service Manual S762A 13 Start End Yes Changedisplay board and retry Changepower board and retry ChangeAC power cord and retry No TroubleFound End OK No No No Back to 4 1 Main Procedure No 4 3 Backlight Trouble Shooting ...

Page 14: ...X Service Manual S762A 14 Start End Yes ChangeLCD panel and retry Changemain board and retry Changepower board and retry No TroubleFound End OK No No No Back to 4 1 Main Procedure No 4 4 Performance Trouble Shooting ...

Page 15: ... main board OK OK OK OK OK Change LCD panel Change main board Change main board Change LCD panel Change power board Change main board Change LCD panel Yes OK OK OK No Yes Check panel connector Check main board connector Change LCD panel Yes Yes Yes OK OK OK Screen with noise line bar No Press enter button call OSD Menu try Reset or Auto Tune Change main board Yes Yes OK OK Yes Yes 4 5 O S D Troubl...

Page 16: ...nd Yes Changedisplay board and retry PressFunction key No TroubleFound No No No No OSD Menu ChangeMain board and retry No Contrast or Bright Adj Menu Changedisplay board and retry ChangeMain board and retry No OK OK OK OK 4 6 Audio Trouble Shooting ...

Page 17: ...ual S762A 17 Start End Yes ChangeSpeaker No TroubleFound No Sound ChangeMain board and retry Sound isBroken ChangeSpeaker OK OK OK Makesuresound output Audio cableisOK Yes Yes Yes Volumecan t Adiust ChangeMain board and retry OK ...

Page 18: ...921 B01 DISPLAY PCBA 4 10A17 4A2A LCD TFT 1280 1024 AU 5 SSBASE 509 SUB ASSY BASE 6 04008003000H CARTON 7 0510169800 HOLDER R 8 0510168800 HOLDER L 9 05Z0001900E PLASTIC HANDLE BAR 10 05Z0002900E PLASTIC CLAP BOARD 11 06208101000H USER MANUAL 12 65B70 1801ZH CABLE AUDIO 13 98T111 P61 DISKETTE 3 5IN 1 44M 14 65S10 150CZH CABLE SIGNAL ...

Page 19: ...C C CT T TX X X Service Manual S762A 19 ...

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