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Results 37055
| Make | Model | Ch: | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|---|
| Samsung | CBQ4147 | Not a source of | Off pin 6 of IC102. Breaks, replace IC102. If unsuccessful, check transistor horizontal output, D618, IC301, Q602, R622. Replace IC601 | |||
| Samsung | CQA4147, -4143, -4153 | No power. Power supply whistles | Check OP601, C609, D611, D610, C610, Q601, ic602, D618, C626, D619, C644, C627, C630, D620, C629, D621, C631, IC603, Q607, C640, D622, C632, D605, D606, C605 | |||
| Samsung | CQA4147, -4143, -4153 | Dead, FH601 fuse OK | Check D614, C618, Q603, D613, C618, R616, R617, IC601, Q602, D607, D609, Q602, OP601 | |||
| Samsung | CQA4147, -4143, -4153 | Fuse open FH601 | Check PTC601, d601-D604, C604, R603, Q602, R622, C613, D608 | |||
| Samsung | CQA4147 | Transistor output horizontal burning after exchange | Swap C418, D406 check. If OK, replace T402 | |||
| Samsung | CQA4147 | No vertical sync | Check D202 and D206 | |||
| Samsung | CQA4147 | No horizontal sync | Check D201, D202. If OK, replace Q205 or IC201 | |||
| Samsung | CQA4147 | No contrast adjustment | IC101 (LM1203) | |||
| Samsung | CQA4147 | No picture, high voltage OK, G2 voltage above 300 V | Check voltage on pin 12 of the LM1203. If <2 V check Q203, Q501 and D501. If> 2 V exchange IC101 | |||
| Samsung | CQA4147 | No picture, high voltage OK, 0V in G2 | Change C117 | |||
| Samsung | CQA4147 | Large image, excessive brightness, horizontal output transistor burns after exchanged | Check Q408 | |||
| Samsung | CQA4147 | Very large image, normal brightness | Check Q406 and D407 | |||
| Samsung | CQA4147 | Main fuse burning | Check Q602, d601, D602, D603 and D604 | |||
| Samsung | CQA4147 | Source only part after some time | C609 and C616 Change | |||
| Samsung | CQA4147 | Not a source of | Check R616, R617, Q403. Change Q403 |