My left channel stoped to work. All other channels works fine. The problem is in the preout board. I thik this, because when touch with fingers on cables to power amplifire board I hear sound from left channel.
If you feel it is , here's the components to check:
Check Q444 (muting transistor)
Q407
Q403 ( TC9213P), Q371
Q402
SOURCE: Picture sound blackout (blink) when cable box/receiver HDMI used
Onkyo service told me, the second timethat I called them, that there is a known HDMI handshake issue with Motorola and Atlanta Scientific cable boxes. The only solution, and it was a solution, is to connect the box through the HDMI 1 port ONLY. All the other (2,3,4) result in blinking/dropping of signal. I did this, changed the cable/satelilte setting to HDMI 1 and all is well.
SOURCE: Onkyo TX-DS 595 receiver surround channel unrealiable
How you power off the amp won't hurt it generally. I used to fix ONKYO amps under warranty, and I can tell you now, it will be full of dry solder joints. Take you unit to your local repairer, and they will resolder all the offending PCB's inside. This type of repair will fix 99% of strange audio noises and cutting in and out etc. for ONKYO recievers. Otherwise this is quite a good product.
Testimonial: "Thanks for the advice! I'm going back to the shop where I bought it seven years ago to see if there are any reasonably priced repair options."
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