Re: LG42PX4RV-2A no 5v stb
Hi sorry we have an holiday in Israel
I can't find tl431 but I find kis431
Is it this one ?
Hi sorry we have an holiday in Israel
I can't find tl431 but I find kis431
Is it this one ?
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Re: LG42PX4RV-2A no 5v stb
Сongratulations on the holiday! Show photo 431Comment
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Re: LG42PX4RV-2A no 5v stb
This oneAttached FilesComment
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Re: LG42PX4RV-2A no 5v stb
Z601Comment
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Re: LG42PX4RV-2A no 5v stb
markings on the Z601 is not visible. Must be in the circuit P121Comment
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Re: LG42PX4RV-2A no 5v stb
Pc 121.?Attached FilesComment
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Re: LG42PX4RV-2A no 5v stb
Show photo inscriptions on kis431 (Z601)Comment
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Hi guys,
I am currently trying to fix an atx psu which has 5v stb present, but doesn't turn on when shorting the pson wire to ground (I have tried with and without load), the pwm/supervisor is a est7502 (which I have replaced), I have checked every diode, every transistor and every cap and they all look fine (capacity wise, I don't have an esr meter yet), the only anomaly is the second voltage (is it called bias voltage maybe?) coming out from the standby transformer, which reads 13.5v (I believe it should be above 15/16v), any suggestion on what to check next? -
We repaired an ADP-240CR that was not producing 12V properly.
DDA001AG and 1608B were broken, so they were replaced and 12V came out normally, but when connected to the main unit and turned on, it immediately shuts down.
Then 5V is not output and the power supply locks up.
When the power cable is disconnected and reconnected, the lock is released.
I have seen the locking symptom when there is something wrong with the 1608B, so I replaced it with another 1608B, but the situation remains the same.
I transplanted major ICs such as DDA001AG, DAS001, 1608B, DNP012A,... -
I had a desktop form factor mini-server die on me a few weeks ago. Through my initial diagnostics, I was convinced it was the motherboard because when I shorted the Green wire on the ATX connecter, the multimeter gave me all the correct voltages on the various pins of the ATX connector and 5VSTB was also correct. To my surprise the replacement motherboard wouldn't turn on with the case power button either. I threw in another PSU and it turned on right away. This is an 80 Plus EVGA 430W PSU with PN:100-W1-0430. I pulled the cover off and don't see any immediately obvious blown caps or scorch... -
I have tevion TV power supply -
It's the power supply from this post – a Dell L305-00 305 Watt PSU (Lite-ON model PS-6311-2d2). Although only one capacitor appeared bulged on this PSU, I found many more that were bad.
Therefore, here goes a thread for a full recap of this PSU. The list here includes all of the electrolytic capacitors and their board designators, with the exception of the two big 200V caps on the primary side – I won't be changing these on my unit:
Cap list…
* 3.3V rail:
** [capacitor C281] OST RLP, 6.3V, 2200 uF, 10 x 20 mm
** [capacitor C282]...
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