LEAK TROUGH-LINE-3 SCH.
(DJVU)55.1 KB
1
AUDIO
SERVICE MANUAL
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar leak manual?
No preview item for this file.
Possible causes:
- No preview picture generated yet.
- It is not a pdf file.
Download processing...
- Also known:
LEAK SCH. TROUGHLINE TROUGH LINE
- If you have any question about repairing write your question to the Message board. For this no need registration.
- If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site.
Have a nice Day! - See related repair forum topics below. May be help you to repair.
If you are not familiar with electronics, do not attempt to repair!
You could suffer a fatal electrical shock! Instead, contact your nearest service center!
so you need WinZip or WinRar to open that files. Also some files are djvu so you need djvu viewer to open them.
These free programs can be found on this page: needed progs
If you use opera you have to disable opera turbo function to download file!
If you cannot download this file, try it with CHROME or FIREFOX browser.
Van nállam egy Sony F110 erösitő,egyik fele gyengébben,szól a upc1298 ra gyanakszom,a feszültségek a lábain rajz szerint mind rendben vannak,ellenálások értékei is jók.egyik naprol a másikra jött elö ez a hiba.Az összes bemenetelen probáltam
Találkozott már valaki ezzel a fajta hibával?
Üdv András
Original problem is no sub woofer output. Been through this one and recapped it and the common 2 burned 1K (R16/17)
resistors are replaced but the sub is still not responding. Volume control potentiometer is a common issue on these but
the L-R spkrs sound good.
Went by this webpage on the repair:
https://christopherbradshaw.net/The_Project_Bin/klipsch%20promedia%20subwoofer%20repair%20-%20page%201.html
On the schematic there is a sub-relay (sw101) powered by +V_HF line it
maybe is suppose to be +V_LF ? Without the relay coming on looks like the sub is disconnected.
The zeners (D03/04) that give +/- Vcc to the op amps seemed way off so I replaced them and the voltages seem much closer.
Theres also a sub-mute line on p104 to p101. Power supply shows the LF mute relay and interconnect diagram says it
gets fed from the LF amp. What is triggering the mute? I dont see a mute button anyplace.
or write your question to the Message board without registration.
You can write in English language into the forum (not only in Hungarian)!