Samsung CK-53, CK-33, CK-50 Troubleshooting

Troubleshooting

Samsung Electronics 5-1

5. Troubleshooting

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

Yes

No

Open the IF Pin of Tuner

Check/Replace

TU01, MC101

No

Measure the

Voltage of Each Pin

of TU01

Check IC901

Pins 39, 40

See "No Video"

(Sound OK)

See "No Sound"

(Video OK)

Check/Replace

IC901, IC201

Yes

5-2 No Power

Troubleshooting

5-2 Samsung Electronics

Yes

No

No

Yes

No

No

No

Check the 125V,

13.0V B+ Lines

Check IC802

Pin 9 (5V)

Check/Replace

IC801, D801, F802

Check/Replace

IC802 (KA7630)

Check IC901

Pin 18 ; Stand-by : 0V

Normal : 5V

Check/Replace

IC901

Check IC901

Pin 16 (4V).

Check/Replace

IC901, (µ-com).

Check IC201,
Pin 40 (H-out)

Check/Replace

IC201, Q401, Q402.