Cheap vs expensive HDMI cables
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by japlyticWith a setup including a TV and AV receiver where HDMI Consumer Electronics Control (CEC) and Audio Return Channel (ARC) functions were working, these two functions stopped working after changing some connections (not the one between the AV receiver and TV), so I believed it was a corrupt setting in the AV receiver or TV, but when I disconnected a passive DisplayPort-HDMI cable (which a Multimode DisplayPort connector supports HDMI with a low cost passive cable or adaptor) connected to a home theatre PC, HDMI CEC and ARC functionality was restored.
An examination of the HDMI CEC wiring...07-10-2022, 09:48 PM -
by japlyticFor some time, a "Class 2" HDMI cable (part number BN39-01583B) supplied with a Samsung 4K 60 Hz display sometimes causes the display to overlay a few horizontal lines of flickering pixels of random colours and sometimes drops out, particularly on content requring HDCP.
Since changing the cable to a thicker Class 2 unit, this problem has not occured again - do you know of other marginal "Class 2" HDMI cables supplied with displays?09-06-2023, 08:50 PM -
by aliougmI 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... -
LG LCD TV picture comes on intermittenly using hdmi port.The sound is on permantly.The hdmi ports looks fine and soldered in securely.The 3.4v coming to the main board is not present(not sure if will affect the hdmi port or where that voltage goes.)The hdmi cable is fine because it works on another tv.The ceramic caps connected to the hdmi controller ic is reading 39 ohms.Could the hdmi controller ic be faulty(feels very warm to touch).The RCA jacks work normally .Thank you in advance for your assistance..
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by budwichI lost one of the two hdmi outputs on a yamaha rx-a1050 receiver. Of course, it is the hdmi1 which has the arc capability which was useful. The second output hdmi works OK.
I got an hdmi breakout board which gave me access to the "little guys" in the hdmi. I did some gross DC voltage measurements to ground and found that the Data1 pair (4 and 6) had a lower voltage than the working hdmi.... 1.1v versus 2.9. All others pins seem to be OK. Further when plugged into a display, there is no video but a message on the screen which I assume is the display's status for the...-
Channel: Troubleshooting Audio Equipment
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