| Author |
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| gary |
 Posted: Tue Mar 20, 2007 9:18 am Post subject: |
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| 11ak45 suffer a lot from eeprom corruption, you may find adjusting the geometry in the service mode will cure the problem, the manual can be downloaded from this site |
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| Guest |
| Posted: Mon Mar 19, 2007 9:10 pm Post subject: |
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| hi gary thanks for your help in this matter, just so you know finally had the parts come today (irf615) and it has curred it. thanks for your time, p.s you dont know anything about a vestel, i think it is 11ak45 which is ok in 16:9 ratio but has east west and to much height in 4:3??? its a 28" widescreen badged as hitachi. cheers, jon |
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| gary |
| Posted: Mon Mar 12, 2007 2:38 pm Post subject: |
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| ORANGE, ORANGE SILVER SILVER IS .33R, CHECK R5048, R5053 AND Q5032, HAD TROUBLE WITH ALL THOSE CAUSING E-W ERRORS |
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| Guest |
| Posted: Mon Mar 12, 2007 1:05 pm Post subject: |
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| try chs for a diagram |
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| Guest |
| Posted: Sat Mar 10, 2007 11:45 pm Post subject: |
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| hi minnie, e/w means east/west, its the geometry of the picture, with an east west fault usally the picture is pin cushion or tarpezum. i hope this helps your understanding, jon. |
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| minnie |
| Posted: Sat Mar 10, 2007 10:16 pm Post subject: |
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| Gary, I'm from the US. Pm me what east/west means. |
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| Guest |
| Posted: Sat Mar 10, 2007 7:35 pm Post subject: |
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| hi gary, managed to get it to kind of work in the end, replaced above resistors, found R5048 o/c. i think this is 3.3 ohms. (looks to be orange, orange, silver, silver) tryed it then found the scan coil plug was loose and arced, this caused ev5033, which is a by228 to go s/c. i replaced this and the set worked but the east west is now faulty. any ideas?? sorry to pick your brains so much but im a young enginner just coming into the trade. i guess it could be a corrupt eeprom, seeing as it was full of dry joints. thanks for your help and pateince, jon. |
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| gary |
| Posted: Mon Mar 05, 2007 9:09 am Post subject: |
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| how many times does the led flash? |
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| Guest |
| Posted: Fri Mar 02, 2007 8:04 pm Post subject: |
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| gary wrote: | | r5056 is 680r, r5046 is 820r and r5068 is 680r all at 3w. they burn up because when the set is placed in standby all rails other than the 135v are turned off, to prevent this recuring replace smd resistor r6019 on the base of q6001 with a 1k resistor, after replacement when set is placed in standby 135v rail will also be turned off. |
gary have checked the values of these and they are ok, so any ideas of futher problems?? they have got very hot but still reed fine. although they were very dry jointed, reflowing them made no diffrence. |
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| Guest |
| Posted: Fri Mar 02, 2007 5:59 pm Post subject: |
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| thanks for your help gary. |
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