bvitmp87pm78f

Hello all! I have a Marantz SR-68U tuner that fails to fully power up, I switched it on and nothing. I opened it up and found that the sub-transformer, T901, is supplying the voltages indicated on page 12 of its Service Manual (4822 725 51193/1999.04/266W855010 AO). However, I find that Power...