Analyzing the power failure occurs in part or remote system control section. Check the remote power IC803 (AN78M05) ③ feet without a 5V output, ① feet without 9V input, indicating a fault before the 5V regulator power conversion part. This machine power conversion part by the Q881 (2SC4004), sampling control tube Q882 (2SD965) damaged, replace the two pipe boot failure unchanged, further examination and found the original 15Ω R885 resistance has increased to about 200kΩ, replace this resistance after troubleshooting.2uHservice manual download site