After replacing Q705 and Q707 because one side didn't work, they both run too hot to touch. Any ideas why?
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Re: Sony TA-AX311 Stereo Amp
what are the voltages at bce ?
what did you replace them with ?
did you test all other transistors ?
r714 r715 good ?Last edited by petehall347; 03-20-2017, 04:03 PM. -
Re: Sony TA-AX311 Stereo Amp
Did you check the Bias curent and the active bias control Q706?
Service manual:
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Hi.
I bought a Cheap HIFI to use as my PC output and speakers and forgot to check if it had an input. It doesn't.
Is there any way to add a stereo input. I have a bunch of Phono sockets I am not using.
Where in the circuit is the best place to solder the 3 stereo input wires?
This is the model and schematics:
https://www.manualslib.com/manual/91...7l.html#manual -
Buenas mi nombre es carlos me uni al foro porque estoy buscando el schematic de una sony vaio pcg-41217u otras formas de escribirlo son 1p-0117j01-a012 mbx-237 numero de placa revision 1.2 o Sony VPCSB (MBX-237), en fin me gustaria y ayudaria un monton si alguien me puede dar dichi svhematic para hacer las mediciones de una laptop de la mencionada anteriormente(Sony VAIO PCG-41217U) con el fin de repararla dejo de funcionar solo prende el led de la bateria al pulsar el boton de power el disco empiesa a hacer ruido de actividad pero los leds del frontas no reflejan acividad y no enciende la pantalla.... -
Diagnosed this TV as having a failed main board which I've replaced with one from a KDL 55HX850. They are (supposedly) the same board.
Being 'Smart TV' it requires a firmware reboot when you swap out boards such as T-Con or main board. It starts with a black screen and flashing yellow and green LEDS, indicating it needs that firmware boot. The procedure described all over the web is to put the software into the root directory of a FAT32 formatted USB drive and it should load that up once plugged into USB1 port. But not for me. I can see the LED on the USB chip flash for about... -
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