11 March 2019, 20:31 | #141 |
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Last year I have received last batch of the same adapter, as shown in post #127, B1 revision with the only exception - those I buy have female 44p pinheader installed instead and (sic!) cost about 4USD more. Anyway, I was stunned to realize the IDE LED was always on, even when there was no card inseted. Needles to say previous batch of the same adaptor was fine (well fine as long as it was patched with jumper wire as described in this thread).
Turns out chinese have soldered incorrect type of transistors on these. Easiest and cheapest solution: remove both transistors, resistor array and (optionally) on-board LED. Then shorten collector pin pad of (removed) transistor closer to IDE port with emitter pin pad of the other (gone) transistor. You can use piece of wire or alternatively 0R 0805 resistor to do so (fits nicely).This will directly connect /IDELED pin on CompactFlash card to corresponding pin on IDE. The compactFlash card then pulls down mainboard IDE LED switching circuit input directly. Same mod will also solve the other issue with LED always off, so it can be used as universal compatibility mod on every rev.B1 IDE/CF adaptor. |
09 April 2019, 23:32 | #142 | |
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Quote:
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04 May 2019, 19:36 | #143 |
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See attachements
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04 December 2019, 22:16 | #144 |
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Nice fix mpattonm - I like to think someone got in trouble for including parts that cost money and weren't needed!
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05 December 2019, 00:04 | #145 |
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So just to be clear, this a resistor OR a simple wire will be enough to join these 2 points? And by doing so, the LED will work correctly on the Amiga side? Will this result in the onboard LED functioning correctly with HDD activity as well or will that remain on permanently?
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05 December 2019, 00:08 | #146 |
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The '0' resistor is exactly the same as a wire, it is a resistor with no resistance - aka a link.
I took the LEDs on the adapter boards off while I had the soldering iron hot. The Amiga 1200 HD LED works as it should. The only thing that isn't working is the master/slave setting, I can't have two of these adapters on the one cable. It does boot but the second drive, though visible in HDTools, cannot be accessed by the system (trying to switch to HD1: in CLI). |
05 December 2019, 02:39 | #147 |
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Just realised my CF to IDE converter does not have the relevant points
Are there any mods/guides to get the SD to IDE converter LED working correctly? |
05 December 2019, 04:12 | #148 |
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Can you show a picture?
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05 December 2019, 06:15 | #149 |
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It's this one:
https://img.dxcdn.com/productimages/sku_10310_1.jpg (NOTE: I can't seem to link it without it being massive and disrupting the post! Any ideas how to link images and make them smaller?) Last edited by lesta_smsc; 05 December 2019 at 06:25. |
05 December 2019, 07:48 | #150 | |
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05 December 2019, 10:34 | #151 |
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I found a mod using a 2N7000 N-Channel MOSFET. Seems like an easy mod of cutting track to pin 39 and then having the pin 39 fed via MOSFET effectively working as transistor?
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12 December 2019, 18:41 | #152 | |
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- KSP44 - 78L05 0826 Then I can get underway with fixing the IDE2SD adaptor I have. The onboard LED works fine but not the one for the Amiga side! |
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12 December 2019, 19:43 | #153 | |
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Maybe someone cleverer than me can confirm. Why not order some 2N7000s? They are super cheap. |
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12 December 2019, 19:51 | #154 |
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I wanted to do it now lol. Otherwise yes you get 20 odd for 99p!
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13 December 2019, 19:48 | #155 |
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13 December 2019, 19:52 | #156 |
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I'd rather pay extra and not have to wait 2 weeks lol
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15 December 2019, 04:17 | #157 |
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Just an update. Part delivered and installed! Works perfectly
Here's a pic. Not as neat as author of the mod but it does work so I'm happy lol. Thank you to the author for easy mod. I wonder whether even placing a diode across the resistor to pin 39 may work just as well? |
21 May 2020, 10:39 | #158 |
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Hate to bring this thread up again, but may as well keep it all under the one roof! I have been using a CF IDE adapter for a while now and I wondered why my LED doesn't work. I got my adapter from Amiga Kit and as far as I'm aware, the adapter light is supposed to work with those straight off the bat. Obviously not a critical issue. But I can see that the light on the adapter itself works and flickers when loading. Just the light on the actual Amiga doesn't seem to flicker or do anything. Also probably worth mentioning, after some time with my Amiga being on the power light will do a bit of weird flickering from full brightness to slightly duller. Would this have anything to do with it? Would a replacement set of LEDs be the solution may be?
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21 May 2020, 13:00 | #159 |
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Post a pic of your CF adaptor (not one online as they all look similar and it's your specific board that will be needed). Some of these require either a single wire or component to feed the high signal for LED when in use and keeping it off at standby/not in use.
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22 May 2020, 17:02 | #160 | |
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I think not that this issue is more so the LEDs than the actual CF adapter. I have no idea what to try next though, buy new LED's and be done with it? |
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