Samsung SyncMaster CKG7507L User manual

Manual
SERVICE
COLOR MONITOR CONTENTS
COLOR
TEMP.
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
COLOR MONITOR
CKG7507L
(SyncMaster 700s )

10 Block Diagram CKG7507L 10-1
TO D - COIL
ON THE CRT
CRT
-90V
( FROM FBT)
BRIGHTNESS
CONTROL
CONTRAST
CONTROL
+12V
+200V
-90V
+30V
FOCUS1,2
SCREEN
R G B
H/V
VIDEO BOARD
MAIN BOARD
H - SIZE
V - SIZE
H - POSI.
V - POSI.
S - PIN.
TRAPEZOID
PARA.
PIN - BALANCE
V - LIN.
VER.-BLANKING
GENERATOR
High Voltage
OUTPUT
G1
ABL
CIRCUIT
CONTRAST
CONTROL
BRIGHTNESS
CONTROL
DEGAUSSING
BLOCK
RL601
AC-INLET
SOCKET
IS601
LINE FILTER
L601
CRT SOCKET BOARD
SOCKET
SK1
G1
HEATER
R G B
D-SUB INPUT
(15 PIN) Video Pre-Amp
IC101(KA2140B)
VIDEO OUTPUT
IC101(LM2405T)
OSD DRIVE CONTROL
IC401(LSC4350)
TILT ABL
R G B - CUTOFF
CONTROL(KA324)
H-SYNC, V-SYNC
V-MUTE
S-CORRECTION
LED
PS-1 (SUSPEND)
PS-2 (POWER-
OFF)
PWM CONTROL &
SWITCHING FET
IC601
RECTIFIER
(D601~D604)
SWITCHING
TRANS.
T601
+70V
+13V
-12V
+7V
TO VIDEO
+12V REGULATION
PS1,PS2 (FROM Micom)
CRT HEATER
+45V +12V
HEATER
PS-2
POWER-OFF MODE CONTROL
(Q606)
2
EPROM
(24LC411)
IC203
FRONT CONTROL BOARD V-SYNC
H-SYNC,
HOR./VER. OSC
PROCESSOR
(UPC1883)
IC401
MICOM
(BD-7)
IC201
HOR.-DY
CN400
CN401
CN402
VER. - DY
CN301
High Voltage
CONTROL
IC501
FBT
T501
HOR.- OUT
Q406
H-DEF.
TRANS
T401
HOR.-DEF.
STEP-UP
CONVERTER
Q411
VER. OUTPUT
IC301
High Volt.-DRIVE
Q501
HOR.-DRIVE
Q403
POSITION
SIZE
G/D
COLOR TEMP
RECALL
DEGAUSS
ADJUSTMENT
BRIGHTNESS
CONTRAST
LED
VER. OUTPUT & TILT CONTROL

13-1 CKG7507L
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1
2
13 Schematic Diagrams
13-1 Power Part Schematic Diagram

13 Schematic Diagrams
CKG7507L 13-2
1
2
3
4
15
13.8
GND
2
14.6
13.6
GND
2.5
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-2. IC602 (TV817M)
Unit: Vrms
1
2
3
4
5
194.6
GND
19.8
3.8
6.2
186
GND
18
2.3
5
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-1. IC601 (KA0680)
Unit: Vrms
1
2
3
2.5
GND
12.5
2.5
GND
12.6
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-3. IC603 (TL431CLP)
Unit: Vrms
1
2
3
14.4
0
5
14.4
0
5
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-4. IC606 (MC7805)
Unit: Vrms
1
2
3
15
0
12
15
0
12
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-5. IC607 (GL7812)
Unit: Vrms
344 V (IC601, #1)
CH1P-P=344V CH1RMS=184.2V
16.4 V (IC601, #5)
CH1P-P=6.4V CH1RMS=4.804V
2

13 Schematic Diagrams
13-3 CKG7507L
40
42
11
9
7
8
3
4
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5
6
10
41
39
38
43
13-2 Micro Processor & Vertical Deflection Part Schematic Diagram

13 Schematic Diagrams
CKG7507L 13-4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
9.1
2.5
1.3
2.5
2.4
4.2
3.1
1.9
3.6
3.5
3.5
2.6
2.4
5
GND
9.1
2.5
1.5
2.4
2.4
4.2
2.9
1.9
3.6
3.5
3.4
2.5
2.4
4.9
GND
9.1
2.2
6.1
2.7
2.5
2.5
8.3
8.3
3.3
2.1
0.6
3.6
2.4
4.3
GND
9.1
1.6
6.2
1.2
1.2
1.5
0.4
8.3
3.3
2.2
0.6
3.6
2.4
4.3
GND
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
pin # pin #
MODES
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz640 x 480 / 60 Hz 640 x 480 / 60 Hz
MODES
Table 13-9. IC401 (UPC1883)
Unit: Vrms
1
2
3
4
5
6
7
8
3.5
0.2
GND
5
5
GND
5
2.1
3.4
4.6
GND
4.7
4.7
GND
4.7
2.1
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-7. IC202 (24LC41)
Unit: Vrms
1
2
3
4
5
6
7
1.24
14.9
12.5
–12.7
4.9
14.5
1.2
1.2
14.7
12.5
–12.6
6.5
14.8
1.1
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-8. IC301 (TDA9302)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
3.4
3.6
3.3
5
5
–
GND
2.9
2.8
5
5
0
2.8
0
0
–
0.2
0.1
0.1
0.1
0.1
3.7
3.5
3.4
5
5
–
GND
3
2.8
5
5
0
2.8
0
0
–
0.2
5.2
5.2
5.2
5.2
0
4.9
5
1.6
3.5
1.8
3.5
4.9
4.9
4.9
4.9
0.2
1.4
3.7
3.9
3.3
3.4
3.4
2.8
1.4
0.2
0
5.1
5.1
1.4
3.5
1.5
2.7
4.9
4.9
4.9
4.9
0.3
1.7
3.9
3.8
4.9
3.5
4
2.43
4.7
4.9
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 Hz640 x 480 / 60 Hz 640 x 480 / 60 Hz
MODES
Table 13-6. IC201 (BD7)
Unit: Vrms
29.6 V (Q301, Collector)
CH1P-P=29.6V CH1RMS=14.70V
5
31.6 V (IC301, #6)
CH1P-P=31.6V CH1RMS=12.76V
9
28.8 V (G1)
CH1P-P=28.8V CH1RMS=50.28V
6
54.8 V (IC301, #5)
CH1P-P=54.8V CH1RMS=6.38V
10
8.56 V (IC401, #18)
CH1P-P=8.56V CH1RMS=5.900V
35.20 V (IC401, #17)
CH1P-P=5.20V CH1RMS=1.768V
4
2.80 V (IC401, #9)
CH1P-P=2.80V CH1RMS=3.469V
7
1.88 V (CN301, #3)
CH1P-P=1.88V CH1RMS=522mV
11
240 mV (IC401, #10)
CH1P-P=240mV CH1RMS=3.533V
8
5.20 V (IC201, #42)
CH1P-P=5.20V CH1RMS=368mV
38
5.36 V (IC201, #34)
CH1P-P=5.36V CH1RMS=1.500V
41 5.36 V (IC201, #33)
CH1P-P=5.36V CH1RMS=332mV
42
5.36 V (IC201, #41)
CH1P-P=5.36V CH1RMS=1.464V
39
7.12 V (Q401, #Emitter)
CH1P-P=7.12V CH1RMS=4.836V
43
5.20 V (IC201, #37)
CH1P-P=5.20V CH1RMS=5.000V
40

13 Schematic Diagrams
13-5 CKG7507L
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12
13
15
14
17
23
22
21
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27
29
26
25
19
18
16
24
28
20
13-3 Horizontal Deflection & High Voltage Part Schematic Diagram

13 Schematic Diagrams
CKG7507L 13-6
1
2
3
4
5
6
7
8
3.2
2.5
0.2
1.4
GND
9.1
14.8
5
1.8
2.5
0
1.8
GND
4
14.7
5
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-10. IC402 (KA3883)
Unit: Vrms
1
2
3
4
5
6
7
8
3.9
2.9
2.9
GND
5.6
5.9
0
12
5.4
2.8
2.8
GND
5.7
5.9
0
11.7
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-12. IC502 (LM358N)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
4.8
4.8
1.7
0.2
0.9
3.5
GND
12
6.5
6.5
12
12
0
4.9
5.5
4.9
4.8
4.8
2.4
0.1
1.3
3.4
GND
12.1
4.1
4.1
12.1
12.1
0
4.9
5.6
4.9
pin # pin #
MODES MODES
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz640 x 480 / 60 Hz 640 x 480 / 60 Hz
Table 13-11. IC501 (KA7500)
Unit: Vrms
1.00 V (IC402, #3)
CH1P-P=1.00V CH1RMS=236mV
13
140 V (Q403, Collector)
CH1P-P=140V CH1RMS=52.7V
17
15.8 V (Q411, Gate)
CH1P-P=15.8V CH1RMS=8.37V
14
11.0 V (Q406, Base)
CH1P-P=11.0V CH1RMS=1.60V
18
138 V (Q411, Drain)
CH1P-P=138V CH1RMS=65.2V
15
1.096 kV (Q406, Collector)
CH1P-P=1.096kV CH1RMS=348.4V
19
2.48 V (IC402, #4)
CH1P-P=2.48V CH1RMS=1.464V
12
30.0 V (T402, #10)
CH1P-P=30.0V CH1RMS=8.40V
16
64 V (Q409, Drain)
CH1P-P=64V CH1RMS=126.1V
20 760 mV (IC501, #5)
CH1P-P=760mV CH1RMS=860mV
21 13.68 V (Q504, Gate)
CH1P-P=13.68V CH1RMS=6.100V
22 162 V (Q504, Drain)
CH1P-P=162V CH1RMS=67.1V
23
8.96 V (Q505, Base)
CH1P-P=8.96V CH1RMS=5.344V
24 5.76 V (Q503, Base)
CH1P-P=5.76V CH1RMS=1.516V
25
160 V (Q514, Collector)
CH1P-P=160V CH1RMS=69.1V
29
856 V (Q503, Collector)
CH1P-P=856V CH1RMS=251.2V
26 6.08 V (IC502, #1)
CH1P-P=6.08V CH1RMS=4.440V
27
312 V (T503, #1)
CH1P-P=312V CH1RMS=96.2V
28

13 Schematic Diagrams
13-7 CKG7507L
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31
32
33
34
3736
35
13-4 Video & Control Part Schematic Diagram

13 Schematic Diagrams
CKG7507L 13-8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1.4
1.4
1.4
0.1
2.5
12
GND
2.5
12
GND
2.5
GND
3
2.8
1.4
1.4
1.4
0.8
2.5
1.8
GND
2.5
11.8
GND
2.5
GND
3.12
2.9
4.8
4.4
5.2
3
5.1
2.9
GND
12
2.9
5.2
1.3
1.3
1.2
1.1
4.9
4.7
5.2
3.2
5.1
3.1
GND
11.9
3
5.2
1.3
1.3
1.2
1.1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
pin # pin #
MODES
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz640 x 480 / 60 Hz 640 x 480 / 60 Hz
MODES
Table 13-13. IC101 (KA2140)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
45.6
GND
46.2
GND
46.6
73.1
GND
2.9
2.9
12
3
40
GND
41
GND
41
73.1
GND
3.1
3.1
12
3.2
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-14. IC102 (LM2405T)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2.4
2.4
12
2.6
2.6
7.3
7.7
2.5
2.5
–12.6
2.2
2.5
7.3
1
2
2
12
2.6
2.6
7.4
7.8
2.5
2.5
–12.6
2.5
2.5
7.3
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-15. IC103 (LM324N)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
0.3
5
5
0.2
0.2
5
gnd
0.2
5
1.4
4.8
4.8
1.3
5
0.3
5
5
2
4.7
0.3
gnd
4.9
0.3
4.7
1.7
1.7
4.4
5
pin #
MODES
1024 x 768 / 85 Hz 640 x 480 / 60 Hz
Table 13-17. IC105 (74HCT14)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
0.1
3.8
1.8
5
5
0
5
5
4.5
3.5
3.3
2.4
0
1.4
1.4
5
4.8
0
5
5
4.6
3.4
3.1
2.4
2.8
2.6
2.6
3.8
5
0.2
0
0.1
1.4
1.4
1.4
GND
2.6
2.5
2.4
4
5
0.2
0
0.1
1.4
1.4
1.4
GND
13
14
15
16
17
18
19
20
21
22
23
24
pin # pin #
MODES
1024 x 768 / 85 Hz 1024 x 768 / 85 Hz640 x 480 / 60 Hz 640 x 480 / 60 Hz
MODES
Table 13-16. IC104 (LSC4350)
Unit: Vrms
860 mV (IC101, #5, 8, 11)
CH1P-P=860mV CH1RMS=2.412V
30 3.28 V (IC101, #18,20,23)
CH1P-P=3.28V CH1RMS=2.748V
31 5.40 V (IC101, #15)
CH1P-P=5.40V CH1RMS=4.870V
33
40.8 V (IC102, #1, 3, 5)
CH1P-P=40.8V CH1RMS=46.28V
34 5.40 V (IC104, #18)
CH1P-P=5.40V CH1RMS=324mV
37
39.2 V (SK1, #1, 2, 3)
CH1P-P=39.2V CH1RMS=26.90V
35
5.40 V (IC101, #16)
CH1P-P=5.40V CH1RMS=4.416V
32
5.44 V (IC104, #5)
CH1P-P=5.44V CH1RMS=4.408V
36