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

ABL

CIRCUIT

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

DEGAUSSING

BLOCK

RL601

AC-INLET

SOCKET

IS601

LINE FILTER

L601

CRT SOCKET BOARD

SOCKET

SK1

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)

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

13 Schematic Diagrams

13-1 Power Part Schematic Diagram

13 Schematic Diagrams

CKG7507L 13-2

13.8

GND

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

194.6

GND

19.8

3.8

6.2

186

GND

2.3

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-1. IC601 (KA0680)

Unit: Vrms

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

14.4

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-4. IC606 (MC7805)

Unit: Vrms

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

13 Schematic Diagrams

13-3 CKG7507L

13-2 Micro Processor & Vertical Deflection Part Schematic Diagram

13 Schematic Diagrams

CKG7507L 13-4

9.1

2.5

1.3

2.5

2.4

4.2

3.1

1.9

3.6

3.5

2.6

2.4

GND

9.1

2.5

1.5

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

8.3

3.3

2.1

0.6

3.6

2.4

4.3

GND

9.1

1.6

6.2

1.2

1.5

0.4

8.3

3.3

2.2

0.6

3.6

2.4

4.3

GND

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

3.5

0.2

GND

2.1

3.4

4.6

GND

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

1.24

14.9

12.5

–12.7

4.9

14.5

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

3.4

3.6

3.3

–

GND

2.9

2.8

–

0.2

0.1

3.7

3.5

3.4

–

GND

2.8

–

0.2

5.2

4.9

1.6

3.5

1.8

3.5

4.9

0.2

1.4

3.7

3.9

3.3

3.4

2.8

1.4

0.2

5.1

1.4

3.5

1.5

2.7

4.9

0.3

1.7

3.9

3.8

4.9

3.5

2.43

4.7

4.9

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

31.6 V (IC301, #6)

CH1P-P=31.6V CH1RMS=12.76V

28.8 V (G1)

CH1P-P=28.8V CH1RMS=50.28V

54.8 V (IC301, #5)

CH1P-P=54.8V CH1RMS=6.38V

8.56 V (IC401, #18)

CH1P-P=8.56V CH1RMS=5.900V

35.20 V (IC401, #17)

CH1P-P=5.20V CH1RMS=1.768V

2.80 V (IC401, #9)

CH1P-P=2.80V CH1RMS=3.469V

1.88 V (CN301, #3)

CH1P-P=1.88V CH1RMS=522mV

240 mV (IC401, #10)

CH1P-P=240mV CH1RMS=3.533V

5.20 V (IC201, #42)

CH1P-P=5.20V CH1RMS=368mV

5.36 V (IC201, #34)

CH1P-P=5.36V CH1RMS=1.500V

41 5.36 V (IC201, #33)

CH1P-P=5.36V CH1RMS=332mV

5.36 V (IC201, #41)

CH1P-P=5.36V CH1RMS=1.464V

7.12 V (Q401, #Emitter)

CH1P-P=7.12V CH1RMS=4.836V

5.20 V (IC201, #37)

CH1P-P=5.20V CH1RMS=5.000V

13 Schematic Diagrams

13-5 CKG7507L

!!!!

13-3 Horizontal Deflection & High Voltage Part Schematic Diagram

13 Schematic Diagrams

CKG7507L 13-6

3.2

2.5

0.2

1.4

GND

9.1

14.8

1.8

2.5

1.8

GND

14.7

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-10. IC402 (KA3883)

Unit: Vrms

3.9

2.9

GND

5.6

5.9

5.4

2.8

GND

5.7

5.9

11.7

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-12. IC502 (LM358N)

Unit: Vrms

4.8

1.7

0.2

0.9

3.5

GND

6.5

4.9

5.5

4.9

4.8

2.4

0.1

1.3

3.4

GND

12.1

4.1

12.1

4.9

5.6

4.9

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

140 V (Q403, Collector)

CH1P-P=140V CH1RMS=52.7V

15.8 V (Q411, Gate)

CH1P-P=15.8V CH1RMS=8.37V

11.0 V (Q406, Base)

CH1P-P=11.0V CH1RMS=1.60V

138 V (Q411, Drain)

CH1P-P=138V CH1RMS=65.2V

1.096 kV (Q406, Collector)

CH1P-P=1.096kV CH1RMS=348.4V

2.48 V (IC402, #4)

CH1P-P=2.48V CH1RMS=1.464V

30.0 V (T402, #10)

CH1P-P=30.0V CH1RMS=8.40V

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

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

160 V (Q514, Collector)

CH1P-P=160V CH1RMS=69.1V

856 V (Q503, Collector)

CH1P-P=856V CH1RMS=251.2V

26 6.08 V (IC502, #1)

CH1P-P=6.08V CH1RMS=4.440V

312 V (T503, #1)

CH1P-P=312V CH1RMS=96.2V

13 Schematic Diagrams

13-7 CKG7507L

3736

13-4 Video & Control Part Schematic Diagram

13 Schematic Diagrams

CKG7507L 13-8

1.4

0.1

2.5

GND

2.5

GND

2.5

GND

2.8

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

5.1

2.9

GND

2.9

5.2

1.3

1.2

1.1

4.9

4.7

5.2

3.2

5.1

3.1

GND

11.9

5.2

1.3

1.2

1.1

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

45.6

GND

46.2

GND

46.6

73.1

GND

2.9

GND

73.1

GND

3.1

3.2

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-14. IC102 (LM2405T)

Unit: Vrms

2.4

2.6

7.3

7.7

2.5

–12.6

2.2

2.5

7.3

2.6

7.4

7.8

2.5

–12.6

2.5

7.3

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-15. IC103 (LM324N)

Unit: Vrms

0.3

0.2

gnd

0.2

1.4

4.8

1.3

0.3

4.7

0.3

gnd

4.9

0.3

4.7

1.7

4.4

pin #

MODES

1024 x 768 / 85 Hz 640 x 480 / 60 Hz

Table 13-17. IC105 (74HCT14)

Unit: Vrms

0.1

3.8

1.8

4.5

3.5

3.3

2.4

1.4

4.8

4.6

3.4

3.1

2.4

2.8

2.6

3.8

0.2

0.1

1.4

GND

2.6

2.5

2.4

0.2

0.1

1.4

GND

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

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

39.2 V (SK1, #1, 2, 3)

CH1P-P=39.2V CH1RMS=26.90V

5.40 V (IC101, #16)

CH1P-P=5.40V CH1RMS=4.416V

5.44 V (IC104, #5)

CH1P-P=5.44V CH1RMS=4.408V

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