I have a vintage (2010) Zinwell ZIN-5005HD media player to which I'd like to add sata port(s). The player is based on the Realtek RTD1073DD which supports up to two sata ports, and the Zinwell board is configured and silkscreened for these two ports, but they are not installed. See attachment photo.
I've installed sata ports in other Realtek-based media players before, but in those cases all that was required was 4 dc blocking caps and the sata jack. The Zinwell board has locations for the 4 dc blocking caps (C204, C206, C208 & C210), but it also has silkscreening for either resistors or inductors(?) in series with the 4 dc blocking caps and the sata data lines. See R185, R187, R189, and R190 - or L23 and L25.
The same single board location is silkscreened for both the resistors and the inductors, so I assume either one or the other is installed. If the entire board is examined (see here), the other board locations that are labeled this way (dual-labeling) sometimes have resistors installed but other locations have inductors installed. I'm assuming the "Lxx" locations are inductors. I could be wrong.
So, I tried to find some schematics of sata data lines with dc blocking caps AND also resistors or inductors in series with the sata data lines.
Does anyone have any idea what function resistors/inductors might have when installed in series with the dc blocking caps in sata data lines? At this point I'm thinking of just jumping those locations and installing just the caps, since I don't know what should be installed at the resistor/inductor locations.
That, and every other realtek media player I have (more than a dozen) has only been configured for the dc blocking caps.
I've installed sata ports in other Realtek-based media players before, but in those cases all that was required was 4 dc blocking caps and the sata jack. The Zinwell board has locations for the 4 dc blocking caps (C204, C206, C208 & C210), but it also has silkscreening for either resistors or inductors(?) in series with the 4 dc blocking caps and the sata data lines. See R185, R187, R189, and R190 - or L23 and L25.
The same single board location is silkscreened for both the resistors and the inductors, so I assume either one or the other is installed. If the entire board is examined (see here), the other board locations that are labeled this way (dual-labeling) sometimes have resistors installed but other locations have inductors installed. I'm assuming the "Lxx" locations are inductors. I could be wrong.
So, I tried to find some schematics of sata data lines with dc blocking caps AND also resistors or inductors in series with the sata data lines.
Does anyone have any idea what function resistors/inductors might have when installed in series with the dc blocking caps in sata data lines? At this point I'm thinking of just jumping those locations and installing just the caps, since I don't know what should be installed at the resistor/inductor locations.
That, and every other realtek media player I have (more than a dozen) has only been configured for the dc blocking caps.
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