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COLOR MONITOR
CSE700P CSE700IFT CSE7829 CSE900P CSE900IFT CSE9829 (CSE7839) (CSE780B) (CSE9839) (CSE980B)

SERVICE
COLOR MONITOR

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

10 Schematic Diagrams
10-1 Power Part Schematic Diagram

C604

1

L601

Power Line

10-1

CSE78**T/CSE98**T

10 Schematic Diagrams
CSE980B, CSE988B
S5 ~33K 33~35K 35~37K 37~40K 40~46K 46~50K 50~55K 55~59K 59~65K 65~68K 68~70K 70~76K 76~78K 78~81K 81~85K 85~96K H L L L H L H H H L L L L L L L S4 H H H L H H L L L L L L L L L L S3 H H H H L L L L L L L L L L L L S2 H L L H L H H H L H H H L H L L S1 H L L H L L H L H L H H H L H L ~33K 33~35K 35~37K 37~40K 40~46K 46~50K 50~52K 52~55K 55~59K 59~65K 65~68K 68~70K 70~76K 76~78K 78~81K 81~85K 85~96K H L L L H H H H H H L L L L L L L

CSE780B, CSE788B
S5 S4 H H H L H L L L L L L L L L L L L S3 H H H H L L L L L L L L L L L L L S2 L L L H L H H H H L H H H L L L L S1 H H H H L H H H L H L H H H H H L

1 544 V (IC601, #1)

CH1 P-P = 544 V

CH1 RMS = 332.4 V

CSE9839, CSE9829
S5 ~33K 33~35K 35~37K 37~40K 40~46K 46~50K 50~55K 55~59K 59~65K 65~68K 68~70K 70~76K 76~78K 78~81K 81~85K 85~96K H L L L H H H H H L L L L L L L S4 H H H L H L L L L L L L L L L L S3 H H H H L L L L L L L L L L L L S2 H L L H L H H H L H H H L H L L S1 H H H H L H H L H L H H H L H L ~33K 33~35K 35~37K 37~40K 40~46K 46~50K 50~55K 55~59K 59~65K 65~68K 68~70K 70~76K 76~78K 78~81K 81~85K 85~96K H L L L H L H H H L L L L L L L

CSE7839, CSE7829
S5 S4 H H H L H H L L L L L L L L L L S3 H H H H L L L L L L L L L L L L S2 H L L H L H H H L H H H L L L L S1 H H H H L L H L H L H H H H H L

CSE78**T/CSE98**T

10-2

10 Schematic Diagrams

10-2 Micom & H/V Process Part Schematic Diagram

15

16

8

13
Signal Line Power Line

10-3

CSE78**T/CSE98**T

10 Schematic Diagrams
Table 10-1. IC201 (ST72E75)
pin # pin # MODES 31 kHz 5.05 0 2.18 3.84 NC 2.32 0 NC GND 5.05 5 5 5 5 5 5 NC 4.73 NC 0 0.6 68 kHz 5.05 0 2.18 4.12 NC 2.32 0 NC GND 5.05 5 5 5 5 0 5 NC 4.62 NC 0 0.36 91 kHz 5.05 0 2.18 4.23 NC 2.31 0 NC GND 5.04 5 5 5 5 5 5 NC 4.63 NC 0 0.46 MODES 31 kHz 5 GND 4.06 5 0 5 5 5 5 0 2.34 2.22 0 12 12 12 12 12 5 GND 2.05 68 kHz 5.03 GND 2.75 5 0 5 5 5 5 0 2.33 2.22 0 0 0 12 12 0 5 GND 2.62 91 kHz 5.03 GND 3.77 5 0 5 5 5 5 0 2.28 2.24 0 0 0 0 0 0 5 GND 2.62 8 12.08 V (IC251, #26) 13 2.20 V (IC251, #15) 15 3.42 V (IC201, #33) 16 3.16 V (IC201, #32)

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 33 34 35 36 37 38 39 40 41 42

CH1 P-P = 12.08 V

CH1 RMS = 7.396 V

CH1 P-P = 2.20 V

CH1 RMS = 2.776 V

CH1 P-P = 3.42 V

CH1 RMS = 2.500 V

CH1 P-P = 3.16 V

CH1 RMS = 2.560 V

Unit: Vrms

Table 10-2. IC251 (SAM9222G)
pin # pin # MODES 31 kHz 0.61 0 0.17 4.83 3.28 6.41 4.01 1.55 1.55 3.37 GND 0 8.05 8.09 2.74 3.27 68 kHz 0.36 0 0.16 4.82 2.69 6.41 4.0 3.39 3.39 3.3 GND 0 8.04 8.03 2.83 3.26 91 kHz 0.46 0 0.17 4.82 2.31 6.4 3.99 4.5 4.5 3.29 GND 0 8.04 8.0 2.78 3.24 MODES 31 kHz GND 5.56 GND 5.46 8.15 3.56 3.56 3.16 2.02 5.06 GND 3.63 12.02 5.03 5.03 5.04 68 kHz GND 5.54 GND 5.24 8.16 3.56 3.56 3.05 2.01 5.11 GND 2.49 12.02 5.03 5.03 5.03 91 kHz GND 5.54 GND 5.24 8.16 3.56 3.56 3.05 2.01 5.38 GND 3.69 12.02 5.03 5.03 5.03

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

CSE78**T/CSE98**T

10-4

10 Schematic Diagrams

10-3 Main Part Schematic Diagram

12

11 10 2

14

3 9

28 17

27
R437 R436

R424

R425

7
C431

C435

5 4
10-5

Signal Line

6

Power Line

CSE78**T/CSE98**T

10 Schematic Diagrams
Table 10-3. IC301 (TDA8172)
pin # pin # MODES 31 kHz 1.09 12.43 9.65 13.6 0 11.56 1.09 68 kHz 1.09 12.28 9.65 13.65 0 11.65 1.09 91 kHz 1.08 12.21 9.41 13.65 0 11.58 1.09

Table 10-6. IC501 (TL494CN)
MODES 31 kHz 4.86 4.86 1.49 0 0.66 3.42 GND 11.97 2.4 2.4 11.98 11.98 GND 4.86 11.98 4.86 68 kHz 4.86 4.86 1.32 0 0.61 3.43 GND 11.96 3.42 3.42 11.96 11.96 GND 4.86 11.96 4.86 91 kHz 4.86 4.86 1.29 0 0.6 3.42 GND 11.95 3.67 3.67 11.95 11.95 GND 4.86 11.95 4.86

2 10.96 V (IC401, #6)

3 230 V (Q405, Source)

4 11.6 V (Q406, Gate)

5 54 V (Q406, Drain)

1 2 3 4 5 6 7

Unit: Vrms Table 10-4. IC401 (KA3843)
pin # MODES 31 kHz 3.3 2.5 0.71 1.25 GND 2.12 11.86 4.98 68 kHz 2.58 2.5 0.41 1.41 GND 4.28 11.86 4.98 91 kHz 2.3 2.5 0 1.22 GND 5.05 11.86 4.98

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 = 11.6 V

CH1 RMS = 6.944 V

CH1 P-P = 54 V

CH1 RMS = 22.44 V

6 18.6 V (Q407, Base)

7 1.216 kV (Q407, Collector)

9 29.8 V (T402, #8)

10 11.36 V (Q501, Gate)

CH1 P-P = 55.2 V

CH1 RMS = 9.52 V

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

CH1 P-P = 29.8 V

CH1 RMS = 7.14 V

CH1 P-P = 11.36 V

CH1 RMS = 6.944 V

1 2 3 4 5 6 7 8

Unit: Vrms
11 808 V (Q502, Base) 12 234 V (Q503, Drain) 14 580 V (T551, #1) 17 0.8 V (Q554, Emitter)

Unit: Vrms
CH1 P-P = 808 V CH1 RMS = 244 V CH1 P-P = 234 V CH1 RMS = 171.5 V CH1 P-P = 580 V CH1 RMS = 278.2 V CH1 P-P = 0.8 V CH1 RMS = 10.216 V

Table 10-5. IC403 (LM324M)
pin # MODES 31 kHz 13.81 5.04 4.52 12.02 3.26 3.26 0.97 1.06 2.02 2.02 13.81 NC NC NC 68 kHz 13.65 5.04 4.44 12.02 3.26 3.26 1.85 1.07 2.02 2.02 13.65 NC NC NC 91 kHz 13.64 5.04 4.41 12.02 3.26 3.26 2.5 1.07 2.02 2.02 13.64 NC NC NC 27 50.4 V (IC301, #5) 28 0.52 V (IC301, #1)

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

CH1 P-P = 50.4 V

CH1 RMS = 5.82 V

CH1 P-P = 0.52 V

CH1 RMS = 1.078 V

Unit: Vrms

CSE78**T/CSE98**T

10-6

10 Schematic Diagrams

13-4 Video Part Schematic Diagram

18 22 23

19

21

20

24 25 26

Power Line

10-7

CSE78**T/CSE98**T

10 Schematic Diagrams
Table 10-7. IC1 (BA7657S)
pin # pin # pin # MODES 31 kHz 3.6 3.5 3.6 GND 3.6 GND 0 GND 0 GND 0 4.5 68 kHz 3.6 2.6 3.6 GND 3.6 GND 0 GND 0 GND 0 0 91 kHz 3.6 2.8 3.6 GND 3.6 GND 0 GND 0 GND 0 0 MODES 31 kHz 0 5 2.1 5 0 3 2.1 5 2.1 4 0 4.4 68 kHz 0 0 2.1 5 0 3 2.1 5 2.2 0 0 0.3 91 kHz 0 0 2.1 5 0 2.9 2.1 5 2.1 0.3 0 0.4

Table 10-8. IC03 (VPS14)
MODES 31 kHz 11.9 2.8 2.1 45 GND 44 2.1 2.7 11.8 GND 11.8 2.7 1.9 46 80 68 kHz 11.9 2.7 2 45 GND 46 2 2.6 11.8 GND 11.8 2.6 1.9 47 80 91 kHz 11.9 2.6 2 46 GND 46 2 2.5 11.8 GND 11.8 2.5 2 47 80

18 0.96 V (IC5, #5)

19 2.92 V (IC5, #26)

20 5.32 V (IC5, #14)

21 4.96 V (IC5, #13)

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

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

Unit: Vrms

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

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

22 40 V (IC03, #4)

23 39.2 V (CN104, #3)

24 4.84 V (IC04, #22)

25 5.2 V (Q101, Collector)

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

Unit: Vrms Table 10-9. IC04 (KA2501)
pin # pin # MODES 31 kHz GND 2.3 1.18 1.18 5 4.67 5 5 NC NC NC NC 68 kHz GND 2.3 1.2 1.2 5 4.3 5 5 NC NC NC NC 91 kHz GND 2.4 1.2 1.2 5 4 5 5 NC NC NC NC MODES 31 kHz NC NC NC 5 4.5 GND 0 0 0 0 0 5 68 kHz NC NC NC 5 4.6 GND 0 0 0 0 0 5 91 kHz NC NC NC 5 4.6 GND 0 0 0 0 0 5

26 5.12 V (IC04, #17)

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

IFT Only

Unit: Vrms

Table 10-10. IC5 (KA2506)
pin # pin # MODES 31 kHz 0 0 0 0 2.4 11.8 GND 2.4 11.8 2.4 GND 3.9 5 5 68 kHz 0 0 0 0 2.3 11.7 GND 2.3 11.7 2.3 GND 3.9 5 5 91 kHz 0 0 0 0 2.3 11.7 GND 2.3 11.7 2.3 GND 3.9 4.7 5 MODES 31 kHz 10.7 10.8 10.8 4.9 4.6 4.5 2.5 GND 11.8 2.6 4.6 2.6 4.6 4.5 68 kHz 10.7 10.7 10.7 5.0 4.3 4.6 2.6 GND 11.7 2.6 4.6 2.6 4.7 4.5 91 kHz 10.7 10.7 10.7 4.8 4.0 4.6 2.5 GND 11.7 2.5 4.6 2.5 4.6 4.5

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

Unit: Vrms

Power Line

CSE78**T/CSE98**T

10-8

10 Schematic Diagrams

13-5 CRT Socket & Control Part Schematic Diagram

Power Line

10-9

CSE78**T/CSE98**T