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SAMSUNG 550SN
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SAMSUNG 550SN Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 22 (click to view)
6 Troubleshooting

6-2 No Video
Power indicator is green

Does the clock pulse appear at output of FT110, FT111, FT112?

No

7

Does the H-sync pulse appear at Pin 94 of IC101?

No

8

9

Does the pulse appear at Pin 10 of IC105 or Pin 1 of IC104? Yes

No

Yes Yes Replace IC101.

Replace IC106. Replace IC105 (seperate sync) or IC104 (SOG).

18 19

Does the sync pulses appear at Pins 13 and 14 of IC110?

No

20

1

Does the sync pulses appear at Pins 2 and 3 of IC110? Yes

No

Check IC401 and IC101.

Yes

Replace IC110 or check its related circuit.

Do the sync pulses appear at Pins 22, 23, 25 and 26 of IC310?

2

3

4

5

No

10

11

12

13

14

Do the sync pulses appear at Pins 2, 3, 54, 55 and 56 of IC301? Yes

No

Replace IC301 or check its related circuit.

Yes

Replace IC305 or check its related circuit. No Replace IC310 and IC311 or check its related circuits.

Do the waveforms appear at Pins 5 and 20 of CN301? Yes Replace LCD Panel

6

6-2

SyncMaster 33*TFT/53*TFT

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