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Technics SU-Z2 tension de 35V en la salida de bocina del Amp

Cambiamos el CI  STK 2038 y sigue el problema. 
Hay tensión continua +35V en la salida de bocina en Amplificador SU Z2 Technics.
Gracias

Comments
2023, March 21 - 07:59
#512771
torokj
torokj picture
15 years 4 months

Hello,
https://elektrotanya.com/technics_su-z2_sch_2.pdf/download.html

DId you check the -35 V negative voltage on the pin 4 of the SVISTK 2038?Also check the feedback resistors (R329-332)
If the simmetrical power supply voltages are OK (+35V pin 2,-35V pin 4, you propably  bought a FAKE power amp hybrid IC.
TJ

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