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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