Hi, I have Subwoofer Klipsch R-112 SW , someone could tell me what's the value of Resistor 13 , it's just beside capacitor 1000UF 80 volts and is connect on Zener ZD4, I don't have service manual.
-
Hi,
I have this 2.1 Klipsch set where the subwoofer emits a constant whine in standby, in addition to a constant rhythmic pulsing/thumping. Only way to make it stop is to cut power. I think this thread mentions the same issue, though my set is not a BT one: https://community.klipsch.com/index....-bt-subwoofer/
I think all this Klipsch gear is using crappy capacitors. Is it worth trying to replace the caps in the subwoofer amp to make this go away?11-17-2024, 06:54 AM -
Hi
I am trying to repair an ancient Dell 2209WA Monitor which suddenly shut off with a pop sound. On investigation found that one of the fusible resistors had blown. Further investigation identified multiple components as faulty because of which the fusible resistor blew. Please refer the attached circuit diagram showing the components that were found to be damaged.
1. FR950 - blown fusible resistor - 0.2 Ohm 1W
2. Q950 - shorted Q950 MOSFET - 650V 10A N Channel Mosfet
3. R835 - Blown Resistor - 20KOhm SMD resistor
4. D930 - Shorted Schottkey Diode... -
Hi everyone,
I’m repairing a PowerColor RX 5700 XT Dual Fan (not the Red Devil or Red Dragon model) with a burnt pin 5 on its 6-pin PCIe connector.
The previous owner had it repaired by a shop. They soldered an enameled wire to reconnect pin 5 to the current sense resistor (shunt).
The card wasn’t displaying anything after this fix.
When I inspected their work, I found that the sense resistor had fallen off after reheating the solder joint (likely due to damaged pads from resistor).
I tried to resolder it with a hot air station, but the resistor wouldn’t...Today, 07:52 AM -
Hi to all forum members,
Got this faulty 350 watt atx psu dirt cheap from a local online seller as i am keen to use it as a learning tool to repair faulty power supply.
The faulty part is quite obvious from the burn area near the 16pin KA7500 BD pwm. The fuse is still intact with good continuity.
Upon power on ac, there is 5vdc standby power on cathode of diode D14 and about 10vdc on cathode of diode D13.(This should be the aux power to generate the 12v and 5v rail.)
Initially i replace the two burned resistors near my marked red arrow to 200 ohm resistor... -
I am particularly interested in the input board with the 4 xlr connectors.
A schematic of only the input board is also oke.
The speaker has a digipro 1000-s powerboard.
Between de bottom right ic and the 16 pin connector the smd components have shifted while desoldering, so a detailed foto of this area would also be ok.10-01-2025, 02:38 AM
Comment