Text preview for : Samsung SyncMaster 700P & 900P (Chassis CSH7839L & CSH9839) (Schematic).pdf part of Samsung SyncMaster 700P, SyncMaster 700P Plus, SyncMaster 900P Service manual and schematic for the Samsung 17" computer monitors SyncMaster 700P, SyncMaster 700P Plus, SyncMaster 900P.



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COLOR MONITOR
CSH7839L (SyncMaster 700p CSH9839L (SyncMaster 900p) )

SERVICE
COLOR MONITOR

Manual
CONTENTS
1. Precautions 2. Reference Information 3. Product Specifications 4. Operating Instructions 5. Disassembly & Reassembly 6. Alignment & Adjustments 7. Troubleshooting 8. Exploded View & Parts List 9. Electrical Parts List 10. Block Diagram 11. PCB Diagrams 12. Wiring Diagram 13. Schematic Diagrams

13 Schematic Diagrams
13-1 Power Part Schematic Diagram

13-1

CSH7839L/CSH9839L

13 Schematic Diagrams
1 544 V (IC601, #1) 2 56.4 V (T601, #7)

CH1 P-P = 544 V

CH1 RMS = 332.4 V

CH1 P-P = 56.4 V

CH1 RMS = 9.18 V

CSH7839L/CSH9839L

13-2

13 Schematic Diagrams

13-2 Micom & H/V Process Part Schematic Diagram

13-3

CSH7839L/CSH9839L

13 Schematic Diagrams
Table 13-1. IC201 (ST72E75_3)
pin # pin # MODES 31 kHz 0.239 0.210 1.875 2.111 1.833 69 kHz 96 kHz MODES 31 kHz 3.65 GND 3.96 5.05 Low High Low 2.258 2.233 High High 69 kHz 3.39 GND 0.337 5.05 Low High Low 2.258 2.233 High High 96 kHz 3.36 GND 4.17 5.05 Low High Low 2.258 2.233 High High 3 3.42 V (IC201, #33) 4 3.16 V (IC201, #32) 5 12.08 V (Q253, Base) 6 2.20 V (IC251, #15)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

0.241 0.238 0.212 0.210 1.876 1.871 3.88 3.34 1.835 1.830 0.239 0.236 0.237 0.238 3.73 3.72 GND GND GND 5.05 5.05 5.05 up: 0.535, down: 1.478, left: 2.478, rignt: 3.45 pos: 0.539, pin: 1.476, menu: 2.476 3.24 ~ 5.02 3.24 ~ 5.02 3.24 ~ 5.02 0 ~ 5.06 0 ~ 5.06 0 ~ 5.06 4.5 0.02 4.51 0.172 0.122 0.112 Low Low Low 4.39 4.46 4.64 D-Sub : High, BNC : Low Low Low Low 0.378 0.604 0.376

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

CH1 P-P = 3.42 V

CH1 RMS = 2.500 V

CH1 P-P = 3.16 V

CH1 RMS = 2.560 V

CH1 P-P = 12.08 V

CH1 RMS = 7.396 V

CH1 P-P = 2.20 V

CH1 RMS = 2.776 V

5.05 GND

5.05 GND

5.05 GND

Unit: Vrms

Table 13-2. IC251 (TDA9110)
pin # pin # MODES 31 kHz 0.610 Low 0 ~ 1.127 3.28 3.121 6.35 3.96 1.515 1.517 3.27 GND 0.073 7.97 8.01 2.81 3.23 69 kHz 0.382 Low 0 ~ 1.127 3.28 2.469 6.35 3.96 3.32 3.32 3.18 GND 0.096 7.97 7.95 2.91 3.21 96 kHz 0.384 Low 0 ~ 1.127 3.28 1.96 6.35 3.96 4.69 4.7 3.27 GND 0.131 7.96 7.91 2.90 3.20 MODES 31 kHz GND 11.9 GND 5.42 8.07 3.52 3.38 2.92 Low 5.28 GND 3.18 11.92 4.94 4.94 5.05 69 kHz GND 11.9 GND 5.22 8.07 3.52 3.44 2.86 Low 5.51 GND 1.85 11.92 4.94 4.94 5.05 96 kHz GND 11.9 GND 5.18 8.07 3.51 3.40 2.81 Low 5.43 GND 2.77 11.92 4.94 4.94 5.05

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Unit: Vrms

CSH7839L/CSH9839L

13-4

13 Schematic Diagrams

13-3 Main Part Schematic Diagram

13-5

CSH7839L/CSH9839L

13 Schematic Diagrams
Table 13-3. IC401 (KA3843B)
pin # pin # MODES 31 kHz 3.027 2.493 0.709 1.535 0 2.070 11.73 4.96 69 kHz 2.621 2.494 0.439 1.472 0 3.71 11.74 4.96 96 kHz 2.57 2.495 0.278 1.548 0 5.33 11.74 4.96

Table 13-5. IC501 (TL494CN)
MODES 31 kHz 4.96 4.96 1.515 0 0.656 3.63 0 11.88 2.634 2.634 11.89 11.89 0 4.96 11.88 4.96 69 kHz 4.95 4.96 1.325 0 0.601 3.71 0 11.86 4.07 4.07 11.86 11.86 0 4.96 11.86 4.96 96 kHz 4.93 4.96 1.306 0 0.611 3.75 0 11.85 4.46 4.46 11.85 11.85 0 4.96 11.85 4.96

7 10.96 V (IC401, #6)

8 230 V (Q405, S

9 29.8 V (T402, #8)

10 54 V (Q406, Drain)

1 2 3 4 5 6 7 8

Unit: Vrms

Table 13-4. IC402 (TDA2006V)
pin # MODES 31 kHz 3.05 3.05 10.79 0.286 11.93 69 kHz 3.88 3.89 11.97 1.916 11.92 96 kHz

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CH1 P-P = 10.96 V

CH1 RMS = 6.180 V

CH1 P-P = 230 V

CH1 RMS = 150.1 V

CH1 P-P = 29.8 V

CH1 RMS = 7.14 V

CH1 P-P = 54 V

CH1 RMS = 22.44 V

11 11.6 V (Q406, Gain)

12 18.6 V (Q407, Base)

13 1.216 kV (Q407, Collector)

14 11.36 V (Q501, Gain)

CH1 P-P = 11.6 V

CH1 RMS = 6.944 V

CH1 P-P = 55.2 V

CH1 RMS = 9.52 V

CH1 P-P = 1.216 kV CH1 RMS = 316 V

CH1 P-P = 11.36 V

CH1 RMS = 6.944 V

Unit: Vrms
1 2 3 4 5 4.25 4.25 11.93 2.631 11.92 15 808 V (T501, #1) 16 234 V (Q503, Drain) 17 12.40 V (IC501, #9, 10) 18 42.8 V (T551, #7)

Unit: Vrms
CH1 P-P = 808 V CH1 RMS = 244 V CH1 P-P = 234 V CH1 RMS = 171.5 V CH1 P-P = 12.40 V CH1 RMS = 5.840 V CH1 P-P = 42.8 V CH1 RMS = 13.78 V

19 580 V (T551, #1)

20 0.8 V (Q554, Emitter)

CH1 P-P = 580 V

CH1 RMS = 278.2 V

CH1 P-P = 0.8 V

CH1 RMS = 10.216 V

CSH7839L/CSH9839L

13-6

13 Schematic Diagrams

13-4 Video Part Schematic Diagram

13-7

CSH7839L/CSH9839L

13 Schematic Diagrams
Table 13-6. IC301 (TDA8172)
pin # pin # MODES 31 kHz 1.088 13.17 13.31 13.65 0.361 12.77 1.087 69 kHz 1.087 13.36 13.31 13.88 0 13.11 1.087 96 kHz 1.089 13.28 13.31 13.89 0.28 12.99 1.087

Table 13-7. IC403 (L272M)
MODES 31 kHz 1.059 11.9 11.4 13.06 0 1.065 1.487 1.5 69 kHz 1.046 11.9 11.4 13.06 0 1.051 1.487 1.5 96 kHz 1.053 11.9 11.42 13.06 0 1.057 1.487 1.5

21 0.96 V (IC01, #2)

22 2.92 V (IC01, #35)

23 5.32 V (IC01, #21)

24 4.96 V (IC01, #20)

1 2 3 4 5 6 7

1 2 3 4 5 6 7 8

CH1 P-P = 0.96 V

CH1 RMS = 2.876 V

CH1 P-P = 2.92 V

CH1 RMS = 2.688 V

CH1 P-P = 5.32 V

CH1 RMS = 3.508 V

CH1 P-P = 4.96 V

CH1 RMS = 3.586 V

25 40 V (IC02, #4)

26 39.2 V (CN105, #10)

27 4.84 V (IC03, #23)

28 5.2 V (Q101, Collector)

Unit: Vrms Unit: Vrms

Table 13-8. IC03 (LSC4309P2)
pin # pin # MODES 31 kHz 0.334 0.94 0.938 5.02 4.67 4.95 4.94 4.94 0.672 0 69 kHz 0.472 1.192 1.19 5.01 4.37 4.94 4.94 4.94 0.668 0 96 kHz 0.605 1.557 1.554 5.0 4.19 4.94 4.94 4.94 0.661 0 MODES 31 kHz 0 0 2.159 4.25 4.99 4.75 0 0 0.3 0.2 0.2 GND 69 kHz 0 0 2.107 4.16 4.94 4.70 0 0 0.3 0.2 0.2 GND 96 kHz 0 0 2.062 4.07 4.91 4.71 0 0 0.3 0.2 0.2 GND 29 5.12 V (IC03, #18) 30 50.4 V (CN301, #1) 31 0.52 V (IC301, #1)
CH1 P-P = 40 V CH1 RMS = 53 V CH1 P-P = 39.2 V CH1 RMS = 71.72 V CH1 P-P = 4.84 V CH1 RMS = 2.118 V CH1 P-P = 5.2 V CH1 RMS = 4.648 V

1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

CH1 P-P = 5.12 V

CH1 RMS = 4.756 V

CH1 P-P = 50.4 V

CH1 RMS = 5.82 V

CH1 P-P = 0.52 V

CH1 RMS = 1.078 V

Unit: Vrms

Table 13-9. IC06 (M52324P)
pin # pin # MODES 31 kHz 0.51 1.08 1.896 0.51 1.08 2.21 0.51 1.08 2.21 11.2 11.2 11.2 GND GND 2.97 4.84 11.8 69 kHz 0.51 1.08 1.896 0.51 1.08 2.21 0.51 1.08 2.21 11.2 11.2 11.2 GND GND 2.97 4.84 11.8 96 kHz 0.51 1.08 1.896 0.51 1.08 2.21 0.51 1.08 2.21 11.2 11.2 11.2 GND GND 2.97 4.84 11.8

Table 13-10. IC08 (M52759SP)
MODES 31 kHz GND 2.333 2.192 4.93 0 0 7.54 6.0 6.0 11.87 2.701 3.85 1.231 6.91 GND 0.054 0.304 GND 6.08 11.89 69 kHz GND 2.333 2.175 4.93 0 0 7.54 6.0 5.94 11.87 2.784 3.96 1.231 6.91 GND 0.065 0.651 GND 6.04 11.89 96 kHz GND 2.333 2.159 4.93 0 0 7.54 6.0 5.91 11.87 2.806 4.04 1.231 6.91 GND 0.080 0.910 GND 6.0 11.89

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Unit: Vrms

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Unit: Vrms

CSH7839L/CSH9839L

13-8

13 Schematic Diagrams

13-5 CRT Socket & Control Part Schematic Diagram

13-9

CSH7839L/CSH9839L