I confirm on the diagram for the "most-most" power polarity is confused

T-HC,
should not.
Heats up usually from unnecessary contacts, snot and TP. guaranteed to be heated if the output is not connected to anything
I got drunk myself (rafting wood)

man
I put the 0.1 micron ceramics right on the feet of the power supply - the tips have been greatly reduced. Before that, there was and still is the same capacity, but it is soldered on the board. Tomorrow I will try 0.47mf and 1mf. I did not find such a choke. everywhere on the value of
Another question for you.
How to reduce the sensitivity of MS? catches the internal noise of the path of the PDA. attached his scheme



Post has been editedSanis - 05.11.10, 18:05

wrapped foil, threw the wire to the ground. nothing changed

and aluminum does not come down?

why didn't they catch it before?

Post has been editedSanis - 23.10.10, 11:19

enotik500,
I just stuck everything under the screen, the screen is naturally on weight, everything except for the power supply wire and wires to the speaker is shielded (it is not possible, and the native amp worked without shielding). low pass filter (at 20kHz) in front of the speaker, also under the screen does not help
jaruto
in asus. but to sense (

and here I have an amp on tda7050 inside the beast, everything is shielded, but it still catches pickups from gsm. I do not know what to do, advise pliz

So 7050 for headphones, no? Or did it mean?
By the way, my 2822 warmed up terribly when properly turned on. 7050 was also heated (up to a tap from the board, soldered with wood alloy). What am I doing wrong?

GaD_NV,
I recently dismantled the Chinese cassette player of the late 90s, so it stood there. Such pieces each in the closet is at least one: smile:

It remains to try a different power source and another crumb

Vlad_333
Condenser in hand and forward to close different tracks: lol: (I did it).
exactly wheezing on HF? Do not spontaneously?
with another speaker too?

Maverick1968
and what, on 7050 there is also a trimmed circuit? : shok:
I collected the bridge according to the scheme from the datasheet. Already figured out how to solve: on the one hand, the speaker should be pulled to the ground through the RC, tomorrow I will try
And the power is yes, from the battery.
shunting film power and did not help: blush:

Hello, there is a problem.
Collected amp on tda7050 (bridge). So here he is without a signal source makes a lot of noise. Otherwise, everything is fine. What to do? Shunt power?

Post has been editedSanis - 28.07.10, 06:31

worm5320,
from your picture 4 outputs, 2 of them duplicate the other 2, so the stereo will not work.

yeah just the opposite. Parallel - we increase the risk of death.

Hello
Amplifier call speaker died on asus p525.
Found tda7050 in the case of SO8 - baby.
I collected a bridge circuit from a datasheet - apparently very dependent on voltage. I connected the phone battery (3.7V at the time) - wheezing. What is strange - on datasheet can be up to 1.6V. I connected 5V usb - it seems normal.
I want to power the animal from the battery.
Will she go? If not, which one to choose with a minimum body kit and preferably in SO8?

enotik500,
same question as uDRE G . I want to put it right in the asus. How about 7050? It is on the 9.8 * 3.2 * 8.25mm datasheet, do the other elements of the scheme greatly increase this matter? By the way, are these chips in bga-versions? then space is generally saved: smile: