hello my friends!
i have a tv sony with this problem:it has got sound and white picture.ihave got the 200vin the tv board,i replace the capacitor 10μf/250v and the Q703,706,709 its ok.i want to check the tda3508 but i dont found in the greek market maybe the problem was here
can you help me what can i check?
thank you very much!
Sziasztok!
A fentemlitett tv-hez kellene egy kis segitség. A probléma az,hogy hangolás közben nem áll meg átmegy a keresett csatornán.Nem lehet lememorizálni új programot,csak azok mennek amik már régóta bent vannak. Memória ic?
Köszi Hege.
Hello
The TV does not show any sign of life , I started the troubleshoot as this , no power Led, no reaction when pressing the power button.
I checked the Power coming out from the power supply, the 3.3V_standby is correct and steady, then I checked the 1.2V_standby produced by IC6001 which Is good as well.
So I decided to control the main IC , IC4000 , he does not output any oscillation on the Xtal, Then I am now bloacked there.
The schematic is downloadable on this website , the schema is weird because the processor is not represented with any Xtal output, but obviously it has one.
Thanks you for your hint and help.
Üdv!
Keresnék csíkokat a fenti tv-hez.
Melyik jó bele?
Itt 3 V ledet írnak
https://vi.aliexpress.com/item/1005005948709141.html?spm=a2g0o.productlist.main.3.608f51a2dti6iV&algo_pvid=a4c4c6b4-74ea-4aec-b8bf-79ea45d14226&algo_exp_id=a4c4c6b4-74ea-4aec-b8bf-79ea45d14226-3&pdp_npi=4%40dis%21HUF%219204.87%212853.51%21%21%21181.29%2156.20%21%40211b8f9717243172533208393e41e8%2112000034984040388%21sea%21HU%211894427778%21X&curPageLogUid=YIiPhb9piHWA&utparam-url=scene%3Asearch%7Cquery_from%3A
Itt meg 6V-ost....
https://vi.aliexpress.com/item/1005006216753707.html?spm=a2g0o.productlist.main.1.608f51a2dti6iV&algo_pvid=a4c4c6b4-74ea-4aec-b8bf-79ea45d14226&algo_exp_id=a4c4c6b4-74ea-4aec-b8bf-79ea45d14226-1&pdp_npi=4%40dis%21HUF%212956.08%212710.33%21%21%2158.22%2153.38%21%40211b8f9717243172533208393e41e8%2112000036979937335%21sea%21HU%211894427778%21X&curPageLogUid=aQ5QVw7iHXd3&utparam-url=scene%3Asearch%7Cquery_from%3A
Kösz