New answers tagged

1

There is a fault in the power distribution of the 12.9V dc supply. Measure the voltage on that pin, with/without the IC and tracing to its source should pinpoint the fault. measure Voltage on green trace and look for ~ 12V~13V. It could be a cracked via. It's a vintage ssssssony


1

Google says Input + Output 输入 + 输出 Stripe is -VE


Top 50 recent answers are included