Hi All, I try to repair this small Yamaha receiver but with fails. In the past I can repair some Yamaha RX-V receivers with the 22nF cap. I also replaced now but also not power on. I think the first problem I don't have an S10 10V I have only 4.8V, so also 5V is missing. I change on Main (2)...

*I think the first problem I don't have an S10 10V I have only 4,8V, so also 5V is missing.*Check the diode also on the 10V rail, plus the cap.The 5V rail is usually stand-by for the processor, without it the device won't turn on.Usually is a small transformer with diode bridge, cap and a 5V regulator like LM7805.Check all this if there are ok

Olá, você tem tensão AC no transformador T1?

Yamaha Rx-E410 Receiver Repair: No Power On, Replaced Capacitors & Missing 5V

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#1 19067893 25 Nov 2020 11:25

djgala djgala

Level 1
Post #1
19067893 25 Nov 2020 11:25

Hi All,

I try to repair this small Yamaha receiver but with fails.

In the past I can repair some Yamaha RX-V receivers with the 22nF cap.

I also replaced now but also not power on.

I think the first problem I don't have an S10 10V I have only 4.8V, so also 5V is missing.

I change on Main (2) board:
C4
C8
C9
C10

Can help me someone?

Thank you and sorry for my English

Attachments:

yamaha_rx-e410_810.pdf Download (8.07 MB)
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#2 20370581 06 Jan 2023 11:08

azaghorth azaghorth

Level 7

Helpful post? (0)

Post #2
20370581 06 Jan 2023 11:08

*I think the first problem I don't have an S10 10V I have only 4,8V, so also 5V is missing.*
Check the diode also on the 10V rail, plus the cap.
The 5V rail is usually stand-by for the processor, without it the device won't turn on.
Usually is a small transformer with diode bridge, cap and a 5V regulator like LM7805.
Check all this if there are ok
#3 21359833 23 Dec 2024 12:23

bacamarte bacamarte

Level 1

Helpful post? (+1)

Post #3
21359833 23 Dec 2024 12:23

Olá, você tem tensão AC no transformador T1?
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Yamaha Rx-E410 Receiver Repair: No Power On, Replaced Capacitors & Missing 5V - Need Help

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