Samsung 743DFS color line amplitude narrow and pincushion distortion, not the simulation parameters, the brightness of the image is too large the maintenance method |
| Time£º2014-08-12 09:19:14 Source£ºNetwork Author£ºUnknown Clicks£º1467 |
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uBGservice manual download site
uBGservice manual download site
Voltage of the G1-68 - v, check the resistance R516, R515, Q502 normal, will R515 (22 kd,) with 1 50 kd, later, found that the image back to normal. uBGservice manual download site
uBGservice manual download site
Line grating amplitude, pincushion distortion correction, image quality is poor, and tong should be no problem with the circuit. Is it bus data change caused by? It seems necessary to verify, then remove the original memory IC202 (A41DC, with 24 c04), fitted with 8 feet socket, stabbed in blank 24 c04, boot appear black screen phenomenon, blank chip of countless according to no. uBGservice manual download site
uBGservice manual download site
Access to the Internet to find the type of data. Found LanXing 743 there are many types of data, which like to repair the machine? Simply download the data related to the samsung 743, and then copy the five data separately with the 24 c04 chip, in turn, install and commissioning, fortunately when installed in the third. Image line range, pincushion distortion correction basic returned to normal, adjusting grating have changed, more magic is also becoming clear images (R515 has been restored to the original cost), thus the machine repair.uBGservice manual download site
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