Bảng mạch khuếch đại công suất tda 7297 15w + 15w chất lượng cao

Latest version of T male star 7297 pure secondary amplifier、 packages, backlogs were added, effective prevention of chip burns due to the backlash, component redistribution, the spacing between the lead holes is the standard 3.96., a direct lead welding or standard wiring terminal on a plate. Containing components such as finished product drawings, you need to weld yourself.



Better be sure to look: There has been a client's recent announcement that the board has noise, we analyze the following reasons: 1、 use of municipal electricity rectification and electricity, 2、 no potentiometer. Solutions: 1、 potentiometers must be added, if you don't add a potential, you can, two 47 k resistors must be parallel to the left-and-right-channel audio input terminals. 2、 supply of electricity by rectification of municipal voltage reduction, the filter capacitance of 10uf must be replaced with more than 100uf (Battery power does not have to be replaced)。 And some clients say they're hot, mostly because the radiator is not used or is too small, must have radiator, the sizes of the sized radiator are 20.0.Players are 145. (Growing Broad Branches) This dissipator does not contain radiator.

Wiring diagram:



Return to the board: No electric current on the machine., high SNR, inputless male martyrdoms almost noise is heard Super Great Phonetics --- High Sound Delicate、 soft、 transparency、 no obvious acupuncture, bass strong、 full、 reduction in the number of people、 you can put it in a good way. Recently, a small number of customers were seen to report high heat, maybe it's the reason for not having a radiator or having a small radiator, advertising clients: The deck needs to be equipped with a radiator of the right size (It's better to be big than small)



Whether the finished product is ready: Pleasant mishap\ x {5db2} s. (Growing Broad Branches)


The core of this amplifier is original imported t7297 double sound amplifying chip, europe's famous s-merry merchant-murmur microelectronics company products. Designed for DC electricity supply, batteries served directly by the merry, voltage range: 9 115v, roster Voltage 12v, power of the merchant as high as15w + 115w, peak power to 30w + 30w, very small sounds but shocking ones, applicable to any stick.
Volume: Pleasant mishap\ x {5db2} s. (Growing Broad Branches), ultra small volume, applicable to any space.
Voltage: Dc 915v, roster Voltage 12v, current above 2a
Power: 115w + 115w
Impedance: 4 8 E
Net weight: 110g



This amplifier works efficiently up to 90 miles, very power efficient, use 12 V Motorcycle battery to power continuous mileage for more than 5 hours.


This 12v power supply small volume amplifier is worthy of the martyrdom of the rod., the shopkeeper pushed two 6. 5 "10 w 'sound boxes on the same bar with this amplifier, don't feel hard at all, the sound quality is superb.





Need to add sound volume to the male potentiometer in front of the amplifier., connectivity is simple, as in the above