GEMEINSCHAFTS RFT-STANDART-SUPER4U62 TUBES RADIO SCH
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AUDIO
SERVICE MANUAL
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RADIO TUBES 62 RFT STANDART SUPER4U62
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Ez a soundbar készenlétből rendben bekapcsol, Hello, majd Vol10, ezután HDMI1 vagy az aktuális bemenet jelenik meg a kijelzőn.
Ezután viszont egy EMERG feliratra vált - és ezután nem reagál semmire.
Belső tápfeszültségek mindegyike rendben van. Végfokok mennek (csak némítva vannak), a kimeneti ferritek pár perc múlva egyformán langyosak.
Első látásra szoftverhiba lehet. Csináltam hard resetet, ez a készülék (-) gombja és a távirányító sound mode gombja egyszerre tartásával lefutott rendben. Előtte bekapcsoláskor Vol 0 ferirat volt, a reset után Vol10 felirattal indul. A hiba sajnos nem szűnt meg, most is EMERG felirat...
Fórumokon nem találtam semmit, van néhány youtube videó - komplett alaplapot cserélnek. Modjuk azt elhiszem hogy megjavul...
Kerestem EMMC dumpot is, de nincs semmi hozzá.
Találkoztatok már ezzel a hibával?
Köszi!
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.
Hi,
I am new to the forum, although you guys helped me a lot in the past with schematics.
I have a DigiPro 1000 S Board with failed diodes (D8 + D9, p.6 digipro_1000_sch_pcb.pdf) on the output. The diodes failed short and created an arc between the high voltage outputs of the amplifier. That burned up the board pretty badly. The capacitors C25 + R43 (10k) and C26 + R25 on the top side got also destroyed. Can someone tell me what capacitor C25 was? In the available schematic, the type and value is sadly not noted.
https://elektrotanya.com/digipro_1000_sch_pcb.pdf/download.html
The driver that was attached survived the ordeal.
Best
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