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Old 04-30-2022, 12:21 PM   #1
aliougm
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Default Marantz SR4003 AVR HDMI board issue, seeking for help

I have problem with my AVR(Marantz SR4003) HDMI board issue. I connect to my TV but screen color distorted,see attached picture.

Connection as below:
Set-top box HDMI output >AVR 3 HDMI input/one HDMI output>HDTV HDMI port
If I bypassed AVR then HDTV screen color be good.

I take out HDMI board from AVR and check services manual the schematic shown the HDMI signals path:
3 HDMI input port > SIL9185 chip(HDMI switch) > SIL9033 chip(HDMI receiver) > SIL9030 chip(HDMI transmitter) > HDMI output port

I replaced all of these three chips but no change. Power to chip 1.8Vand 3.3V is fine. I have no idea what the next I can do.

Anybody has experience to deal with such problem, please advice, thanks!
Attached Images
File Type: jpg 6C565FE2-FD11-4949-B784-06A020C57584.jpg (257.7 KB, 9 views)
File Type: jpg 61542508-550B-4029-873B-E25DDE1A8DE2.jpg (358.0 KB, 7 views)

Last edited by SMDFlea; 05-02-2022 at 09:11 AM.. Reason: Marantz SR4003
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Old 04-30-2022, 12:29 PM   #2
nomoresonys
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Default Re: AVR HDMI board issue, seeking for help

probably already tried it but did you try a different hdmi cable?
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Old 04-30-2022, 06:20 PM   #3
aliougm
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Default Re: AVR HDMI board issue, seeking for help

Yes, replaced HDMI cable nothing change!
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Old 05-01-2022, 11:09 AM   #4
aliougm
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Default Re: AVR HDMI board issue, seeking for help

Solved:
I found one pin of SIL9033 non-wetting. soldering all of pin once problem was solved. Share it may help for you.
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Old 05-01-2022, 12:32 PM   #5
nomoresonys
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Default Re: AVR HDMI board issue, seeking for help

Nice, glad to hear it.
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