Samsung SyncMaster 520TFT User manual

COLOR MONITOR
SyncMaster 320TFT/520TFT
Manual
SERVICE
COLOR MONITOR CONTENTS
**
1. Precautions
2. Reference Information
3. Product Specifications
4. Operating Instructions
5. Disassembly & Reassembly
6. Troubleshooting
7. Exploded View & Parts List
8. Block Diagram
9. Electrical Parts List
10. PCB Diagrams
11. Wiring Diagram
12. Schematic Diagrams

20
118 19
7
9
8
Power Line
Signal Line
12-1 SyncMaster 320TFT/520TFT
12 Schematic Diagrams
12-1 DAC & IO Part Schematic Diagram

12 Schematic Diagrams
SyncMaster 320TFT/520TFT 12-2
1
2
3
4
5
12
3.3
GND
3.3
GND
pin #
MODES
1024 x 768 / 85 Hz
Table 12-4. IC108
Unit: Vrms
1
2
3
4
5
12
5
GND
5
GND
pin #
MODES
1024 x 768 / 85 Hz
Table 12-3. IC107
Unit: Vrms
1
2
3
12
GND
5
pin #
MODES
1024 x 768 / 85 Hz
Table 12-1. IC102
Unit: Vrms
1
2
3
12
GND
5
pin #
MODES
1024 x 768 / 85 Hz
Table 12-5. IC109
Unit: Vrms
1
2
3
12
GND
5
pin #
MODES
1024 x 768 / 85 Hz
Table 12-2. IC103
Unit: Vrms
7IC101 #94
CH1RMS=3.5V
8IC105 #10
CH1RMS=3.1V
9IC104, #1
CH1RMS=4.56V
18 IC110 #13
CH1RMS=1.24V
19 IC110 #14
CH1RMS=400mV
20 IC110 #2
CH1RMS=4.4V
1IC110 #3
CH1RMS=3.6V

16
15 17
10
11
12 13 14
2345
6
Power Line
Signal Line
12-2 ZOOM & FRC Part Schematic Diagram
12 Schematic Diagrams
12-3 SyncMaster 320TFT/520TFT

12 Schematic Diagrams
SyncMaster 320TFT/520TFT 12-4
1
2
3
4
5
6
7
8
11.96
5.90
4.99
5.8 mV
4.99
4.99
11.95
11.95
pin #
MODES
1024 x 768 / 85 Hz
Table 12-6. IC309
Unit: Vrms
2IC310 #22
CH1RMS=3.1V
3IC310 #23
CH1RMS=2.3V
4IC310 #25
CH1RMS=2.8V
5IC310 #26
CH1RMS=2.12V
6CN301 #5~20
CH1RMS=1.18V
10 IC301 #2
CH1RMS=2.3V
11 IC301 #3
CH1RMS=3.25V
12 IC301 #54
CH1RMS=2.35V
13 IC301, #55
CH1RMS=200mV
14 IC301 #56
CH1RMS=50mV
15 IC307 #12
CH1RMS=2.2V
16 IC307 #5
CH1RMS=1.7V
17 IC307 #10
CH1RMS=4.3V

Power Line
12-3 Micom Part Schematic Diagram
12 Schematic Diagrams
12-5 SyncMaster 320TFT/520TFT
1
2
3
4
5
6
7
8
NC
NC
NC
GND
4.43
4.46
4.87
5.03
pin #
MODES
1024 x 768 / 85 Hz
Table 12-8. IC403
Unit: Vrms
1
2
3
4
5
6
7
8
GND
GND
GND
GND
5.03
5.03
GND
5.03
pin #
MODES
1024 x 768 / 85 Hz
Table 12-9. IC404
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
59.8 mV
5
5
5
4.62
0.457
4.91
5
GND
5.03
5.02
5.02
NC
NC
4.94
93.7 mV
3.217
4.97
5.01
63.0 mV
0.476
3.44
GND
4.16
5.01
4.97
4.46
4.43
4.78
4.77
14.07
2.226
2.238
5.03
5.03
4.96
4.96
52.7 mV
4.96
4.87
GND
9.7 mV
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
pin # pin #
MODES
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz
MODES
Table 12-7. IC401
Unit: Vrms

12-4 Sub Part Schematic Diagram
12 Schematic Diagrams
SyncMaster 320TFT/520TFT 12-6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
GND
Signal (+2.5 V Bias)
5
Signal (+2.5 V Bias)
Input Signal (+2.5 V Bias)
GND
2.5
2.5
2.5
Input Signal (+2.5 V Bias)
Signal (+2.5 V Bias)
5
Signal (+2.5 V Bias)
GND
2.5 V (Headphone : 5 V)
pin #
MODES
1024 x 768 / 85 Hz
Table 12-10. IC803
Unit: Vrms

Memo
12 Schematic Diagrams
12-7 SyncMaster 320TFT/520TFT