sssboa
Super Member
Hi
So the gear is Yamaha CR-800.
On switch-on the resistor R733 on the main amp left channel goes in flames. Initially I found the transistor TR715 next to it shorted. But after replacing TR715 the same happened, this time TR715 did not short. I replaced all transistors and diodes on the left side and still the same happens, the resistor R733 burns on start-up. I also roughly checked the board for continuity of traces but seemed ok, reflowed all solder points on the left side. All capacitors and relay are new.
Any suggestions?
Thx in advance,
Andy
So the gear is Yamaha CR-800.
On switch-on the resistor R733 on the main amp left channel goes in flames. Initially I found the transistor TR715 next to it shorted. But after replacing TR715 the same happened, this time TR715 did not short. I replaced all transistors and diodes on the left side and still the same happens, the resistor R733 burns on start-up. I also roughly checked the board for continuity of traces but seemed ok, reflowed all solder points on the left side. All capacitors and relay are new.
Any suggestions?
Thx in advance,
Andy