120v ok, No voltage on the connectors, Fuses OK, 165v DC on the main capacitor
Attached Files
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Re: YAMAHA AV Receiver RX-V585 No Power
Standby circuit is defective, are you sure F5401 is good? Also check F5405 (2A/63V)Last edited by R_J; 09-12-2023, 02:05 PM. -
Re: YAMAHA AV Receiver RX-V585 No Power
F5401 and F5405 are okComment
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Re: YAMAHA AV Receiver RX-V585 No Power
Are you sure you are not getting any 5.5 volts from the standby circuit?
Check the voltage across C5419 and C5420Last edited by R_J; 09-12-2023, 02:24 PM.Comment
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Re: YAMAHA AV Receiver RX-V585 No Power
C5419: 161v dc
c5420: 9.7v dcComment
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Re: YAMAHA AV Receiver RX-V585 No Power
C5420 is for the vcc voltage, it needs to be 15 volts to start up. Try replacing C5420, Check that there are no shorts in the secondary side like D5409.
Check the solder connections on the transformer and check R5407 (47Ω)Last edited by R_J; 09-12-2023, 02:53 PM.Comment
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Re: YAMAHA AV Receiver RX-V585 No Power
C5420 replaced, R5407: 47ohm, transformer connection resoldered, no shorts.
Same as post 5Comment
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Re: YAMAHA AV Receiver RX-V585 No Power
Are you getting any voltage at all on the secondary side across C5423? if not it may be that ic541 is bad and not operating, the circuit is very simple and only has a few components.Comment
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Re: YAMAHA AV Receiver RX-V585 No Power
Today I received the IC541 (3A453D) and voltage across C5423 look like a pulse, go to 1.7v DC and back to 0v and back to 1.7vComment
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Re: YAMAHA AV Receiver RX-V585 No Power
Relay is OK? Once I had a two year old Yamaha with a sealed relay, that was rusted inside.Comment
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Re: YAMAHA AV Receiver RX-V585 No Power
But the relay come to play after, first I have to have the standby voltagesComment
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Re: YAMAHA AV Receiver RX-V585 No Power
https://www.youtube.com/watch?v=NqYDAyJBjBU
Check the protection codeComment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
This specification for the HP Pavilion Power Pavilion Power 15-cb009nl Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Pavilion Power 15-cb009nl boardview and Pavilion Power 15-cb009nl schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that...09-06-2024, 05:59 AM
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