Joined: 22 Mar 2010
|Posted: Sat Mar 01, 2014 7:03 am Post subject: Samsung CL29M40MQ horizontal line
|I will like to know what could be the problem with this Samsung TV.
Model Number: CL29M40MQ
Model Code: CL29M40MQ2XXAP
Chassis Number: K16A 29M40
Serial Number: AGAX34AQ100
Made in China
1. TV has Audio but no Picture only Horizontal Line at Middle of Screen.
2. DVD Player connect to RCA Jacks on Left side of TV, has Audio but no Picture only Horizontal Line at Middle of Screen.
3. TV goes OFF after 6 Seconds.
IC902 Pins 8
IC201 Pins 90
IC801S Pins 6
IC301 Pins 7
Integrated Circuit Vertical Output w/Bus Control Support for TV and CRT Displays
IC501 Pins 9
Yoke Horizontal = 8 Rings = 1.7 Ohms out of circuit.
Yoke Vertical = 8 Rings = 21.0 Ohms out of circuit.
Voltage Tested TV Standby:
C822 B+ 130V = 90.6V, C803 = 165.3V, IC801S Pin 1 = 163.5V, Pin 2 = 0.002V, Pin 3 = 13.99V, Pin 4 = 0.070V, Pin 5 = 1.616V, Pin 6 = 0.116V
Voltage Tested TV ON:
C822 B+ 130V = 123.1V, C803 = 154.7V, IC801S Pin 1 = 154.5V, Pin 2 = 0.063V, Pin 3 = 20.98V, Pin 4 = 0.132V, Pin 5 = 1.365V, Pin 6 = 1.227V, IC301 Pin 1 = 0.612V, Pin 2 = 15.95V Pin 3 = -8.20V, Pin 4 GND = -14.39V, Pin 5 = 0.649V, Pin 6 = 18.87V, Pin 7 = 0.597V, IC201 Pin 76 = 0.697V, Pin 77 = 0.680V, Pin 78 = 0.075V, CN503 Pin 1 B+ 210V = 195.2V, Pin 12 R = 1.096V, Pin 13 G = 1.099V, Pin 14 B = 1.070V, IC501 Pin 1 = 1.130V, Pin 2 = 1.154V, Pin 3 = 1.157V, Pin 4 = 0.009V, Pin 5 = 2.945V, Pin 6 = 196.5V, Pin 7 = 186.9V, Pin 8 = 186.8V, Pin 9 = 187.3V
R309, R310, C304, C410 470uF = 453uF -17uF ESR = .10, C409, R302, R303, R304, C302 10J, C822, C803 330uF 400V = 286uF -44uF ESR = .15, R311, R305, R315, C812, C808, R306, L302B, L303B, C301, DZ306, DZ303, DZ302, R318, R312, D305, R307, C312, DZ813, DZ807, DZ815, DZ816, DZ814, DZ812, D803, C313
1. Replaced IC301 LA78045
2. Resoldered Main Circuit Board.
3. Resoldered CRT Circuit Board.
4. Replaced IC902 24C16A
5. Installed 8 Pin IC Socket.
I would like to thank you in advance for your immediate assistance in this urgent matter. Should you have any further questions please contact me.
386 Eastern Main Road,
Trinidad, West Indies
Tel: (868) 761-7575 or (868) 371-5692