Unfortunately my tuner is not tuning as well.

chongmagic

chongmagic

Well-known member
When soldering on the ribbon cable, I managed to pull out one of the wires from the harness. It fires up, but the tuner does not work. Both relays are clicking on.

Here are some pictures of the cable.

If I need to buy another cable, is that a possibility?

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Did the pin pulled with the wire or it's still in the connector ? You might be able to get the pin out if it's still in there and crimp it back to the wire. Then it's just as simple as pushing it back in in the right way.
 
I will try to push the pin out but I think it may be futile, anyways I ordered another screen just in case.

I guess I am confused as the guide says the following:

My harness is just missing the 19 green cable, shouldn't it technically still function?

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Technically it should still work. The connecter is a little finicky to get seated properly. You may want to gently pull it out and try re- seating it. Don’t force it but make sure its all the way in on both sides. I actually bent the whole group of wires to make it more of a straight shot to put it in and it was easier.
 
I will try reseating the harness and going to try checking the voltages again. One of the NE555 chips does not seem to be seated properly going to try and reseat it as well.
 
While I was soldering my Q-Tune, I kept thinking I wasn't getting enough solder in some of the pads, but really it was just a trick of the eye — the pads looked empty 'til I changed my viewing angle and then could see that it wasn't "solder-hungry", just a dark-reflection and that I'd already filled the pad and made the component-pad connection.


Good catch on the possible stray-wire, Jimilee. That definitely looks suspect.


I had trouble seating the MCP6002, but managed to gently* re-apply it a few times 'til it seated correctly.
*Lest I wreck the socket (highly likely) or bend/break the IC's legs (unlikely but possible with my ham-fists).

I wanted to use what was supplied with the kit, AND I've run out of machined sockets — otherwise I might've replaced the fly-leaf IC-sockets with machined units. I treated those fly-leaf sockets with kid-gloves, as I've had less than stellar experiences with flakey fly-leaf.



So that's my recommendation — check the fly-leaf sockets 😼 for broken legs or other malformed maladjusted malignant maladapted malfunctioning malarkey...
 
Looks like the stray wire was touching so I cut it. One of the NE555 chips was not seated as great as it could be so I reseated it. My voltages match what is in the build docs. It will work as a tuner now in buffered mode, but not in true bypass mode?
 
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