I have searched without success so far, Can anyone help?
Sony Amp (1970s)
Sony Amp (1970s)
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Re: Sony SA-88 Schematics Wanted
that should be so simple you don't even need schematics.
also you can take advantage of fact that those are 2 same circuits for 2 channels.
if one channel works ok then it can help you troubleshoot other.
other than that you're left with power supply...and pots... -
Re: Sony SA-88 Schematics Wanted
It is something so simple that I felt embarassed to ask. It is the value of the lamp for the stereo signal which is missing as I removed it many years ago for an ID but now is lost.
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Re: Sony SA-88 Schematics Wanted
turn it on,tune to a stereo signal,measure voltage.
iirc the mpx chip can only source about 30 ma to drive the lamp.
might be a job for an led?Comment
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Re: Sony SA-88 Schematics Wanted
Sorry, It was a ST-88 a tuner. (I used to have an amp)Comment
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Re: Sony SA-88 Schematics Wanted
kc's answer still very much valid.
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Re: Sony SA-88 Schematics Wanted
The stereo output for the indicator light is 15V when full signal. I found a led from a portable tv. I have had no luck finding two 8V x .15w dial light bulbs.Comment
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Re: Sony SA-88 Schematics Wanted
uses 2 lights?
try 2 led's in series and a 470 ohm resistor.Comment
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Re: Sony SA-88 Schematics Wanted
I found the bulbs here http://www.lampspecs.co.uk/Light-Bul...150MA-1-2W-E10Comment
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Hi, lastweek i received a Sony SVE151E11M, that after a liquid damage was not starting, after removing oxide and reworking IC and SMD component thet laptop was able to start and was working for 2 DAYS...
after the 2nd day, the screen become black (no backlight), there is HDD activity (OS is loading) but no screen on internal panel, VGA and HDMI.
After 25/38 seconds the computer shut down by itself. (i know that is probably not the cause of the blackscreen but a thermal protection of some kind.. but i'm interested on how the shutdown is performed)
BTW... 2 ICs related to thermal... -
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.... -
hey there
I picked up a faulty bench PSU that was being discarded as was faulty. So the internal SMPS has some faults, bad thermistor, Schottky rectifier and Mosfets all blown and I have replacement parts on way. fingers crossed 😀
I am looking for a set of diagrams for the power supply. has EST v1.15 along with 2022 date. Not sure if the EST refers to Edwards or some other manufacturer.
thanks in advance.
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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... -
This specification for the Sony VAIO SVF11N1L2E Hybrid (2-in-1) can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the SVF11N1L2E boardview and SVF11N1L2E schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-06-2024, 05:27 AM
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