Hello to all fellow members and friends. Sony ST-SA5ES tuner came to my hands with poor sensitivity issue and after a re-alignment seems to corrected but still signal strength reports low levels. Looking around front-end circuit, I realized that IF level is too low and not clean 10.7 MHz wave. Unfortunately, SONY doesn't provide schematics of this Front End can. Is anybody from you faced same problem or has this schematic in order to investigate deeper? The P/N is 1-693-289-11. Also it is not available any more in known market places. Maybe someone of you has this available for purchasing.
Thanks in advance for your kind attention and help.
Regards,
John
Thanks in advance for your kind attention and help.
Regards,
John
Thanks for reply and note. It seems that v1.1 is a totaly different board. Maybe there are some similarities. I will see how I can match both versions although my unit has the front end inside metal can.
Regards,
John
Regards,
John
Hi. Not many similarities so no progress... Have anyone of you faced the same problem before? Is anybody from official Sony Service here that can help?
Regards,
John
Regards,
John
JPaudio-- the Sony ST-SA5ES --original IS available at hi-fi engine --two versions - the original and the V1.1 are available .
I logged in and I am looking at the schematic .
Hi-Fi engine insist you personally log in that's why I got a -403 when trying to use the above link.
I logged in and I am looking at the schematic .
Hi-Fi engine insist you personally log in that's why I got a -403 when trying to use the above link.
Thanks a lot for all they interested. I do have an account at hifiengine.com and I have both versions of schematics. But my units is NOT the ver 1.1 one. This is the reason I am looking for more info about Front End Tuner can. See attached photo.
Attachments
Looking at the earlier version on Hi-Fi Engine I can see the circuit diagram showing the co-ax input going to IC 401 and IC 301 and the FM IF section are you saying there is not showing your Front End Tuner ?
