Samsung CS-29, CS-30, CS-25 Troubleshooting

Troubleshooting

Samsung Electronics 5-1

5. Troubleshooting

5-1 No Video (Raster On, No Sound)

Yes

No

Check/Replace

TU101, HC101

No

Measure the

Voltage of each of, 8 pins

of TU101

Check IC901

Pins 39, 40

See "No Video"

(Sound OK)

See "No Sound"

(Video OK)

Check/Replace

IC901,IC201,IC902 ,IC701,

Audio Module

Yes

5-2 No Power

Troubleshooting

5-2 Samsung Electronics

Yes

No

No

Yes

No

No

No

Check the 130V,

12.7V B+ Lines

Check IC804

Pin 9 (5V)

Check/Replace

IC801, D802

Check/Replace

IC804(KA7630),DZ905,DZ804

Check IC901

Pin 18 ; Stand-by : 0V

Normal : 5V

Check/Replace

IC901

Check IC901

Pin 8 (4V).

Check/Replace

IC901(m-com)

Check IC201,

Pin 40 (H-out)

Check/Replace

IC201, Q402, Q403

No

Check Q402, Q403

Check/Replace

DZ805, IC802

Yes

Yes

Yes