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12 Schematic Diagrams
12-1 DAC & IO Part Schematic Diagram




20




19
1 18




7




9




8




Power Line
Signal Line



12-1 SyncMaster 320TFT/520TFT
12 Schematic Diagrams

Table 12-1. IC102 Table 12-2. IC103 Table 12-3. IC107
pin # MODES MODES MODES




pin #




pin #
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz 1024 x 768 / 85 Hz

1 12 1 12 1 12
2 GND 2 GND 2 5
3 5 3 5 3 GND
4 5
Unit: Vrms Unit: Vrms 5 GND

Unit: Vrms




Table 12-4. IC108 Table 12-5. IC109 1 IC110 #3

MODES MODES
pin #




pin #




1024 x 768 / 85 Hz 1024 x 768 / 85 Hz

1 12 1 12
2 3.3 2 GND
3 GND 3 5
CH1 RMS = 3.6 V
4 3.3
5 GND Unit: Vrms

Unit: Vrms




7 IC101 #94 8 IC105 #10 9 IC104, #1




CH1 RMS = 3.5 V CH1 RMS = 3.1 V CH1 RMS = 4.56 V




18 IC110 #13 19 IC110 #14 20 IC110 #2




CH1 RMS = 1.24 V CH1 RMS = 400 mV CH1 RMS = 4.4 V




SyncMaster 320TFT/520TFT 12-2
12 Schematic Diagrams

12-2 ZOOM & FRC Part Schematic Diagram




2 5
3
4
16




6
15
17




12 13 14


10
Power Line
11

Signal Line




12-3 SyncMaster 320TFT/520TFT
12 Schematic Diagrams

Table 12-6. IC309 2 IC310 #22 3 IC310 #23

pin # MODES
1024 x 768 / 85 Hz

1 11.96
2 5.90
3 4.99
CH1 RMS = 3.1 V CH1 RMS = 2.3 V
4 5.8 mV
5 4.99
6 4.99
7 11.95
8 11.95

Unit: Vrms



4 IC310 #25 5 IC310 #26 6 CN301 #5~20




CH1 RMS = 2.8 V CH1 RMS = 2.12 V CH1 RMS = 1.18 V




10 IC301 #2 11 IC301 #3 12 IC301 #54




CH1 RMS = 2.3 V CH1 RMS = 3.25 V CH1 RMS = 2.35 V




13 IC301, #55 14 IC301 #56 15 IC307 #12




CH1 RMS = 200 mV CH1 RMS = 50 mV CH1 RMS = 2.2 V




16 IC307 #5 17 IC307 #10




CH1 RMS = 1.7 V CH1 RMS = 4.3 V




SyncMaster 320TFT/520TFT 12-4
12 Schematic Diagrams

12-3 Micom Part Schematic Diagram
Table 12-7. IC401
MODES MODES




pin #




pin #
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz

1 59.8 mV 22 3.44
2 5 23 GND
3 5 24 4.16
4 5 25 5.01
5 4.62 26 4.97
6 0.457 27 4.46
7 4.91 28 4.43
8 5 29 4.78
9 GND 30 4.77
10 5.03 31 14.07
11 5.02 32 2.226
12 5.02 33 2.238
13 NC 34 5.03
14 NC 35 5.03
15 4.94 36 4.96
16 93.7 mV 37 4.96
17 3.217 38 52.7 mV
18 4.97 39 4.96
19 5.01 40 4.87
20 63.0 mV 41 GND
21 0.476 42 9.7 mV

Unit: Vrms


Table 12-8. IC403
MODES




pin #
1024 x 768 / 85 Hz

1 NC
2 NC
3 NC
4 GND
5 4.43
6 4.46
7 4.87
8 5.03

Unit: Vrms



Table 12-9. IC404
MODES




pin #
1024 x 768 / 85 Hz

1 GND
2 GND
3 GND
4 GND
5 5.03
6 5.03
7 GND
8 5.03

Unit: Vrms



Power Line




12-5 SyncMaster 320TFT/520TFT
12 Schematic Diagrams

12-4 Sub Part Schematic Diagram
Table 12-10. IC803
MODES




pin #
1024 x 768 / 85 Hz

1 GND
2 GND
3 Signal (+2.5 V Bias)
4 5
5 Signal (+2.5 V Bias)
6 Input Signal (+2.5 V Bias)
7 GND
8 2.5
9 2.5
10 2.5
11 Input Signal (+2.5 V Bias)
12 Signal (+2.5 V Bias)
13 5
14 Signal (+2.5 V Bias)
15 GND
16 2.5 V (Headphone : 5 V)

Unit: Vrms




SyncMaster 320TFT/520TFT 12-6
12 Schematic Diagrams

Memo




12-7 SyncMaster 320TFT/520TFT