Q110 gives the same readings on the main board in my donor unit when it is powered up, as on the malfunctioning unit. But Q118 gives 2.9, 2.9 on...
Results of testing the transistors: Q107 NPN, BE: 0.68, BC: 0.6 Q108 NPN, BE: 2.5, BC: 2.5 Q109 NPN, BE: 0.72, BC: 0.72 *Q110 NPN, BE: 0.46, BC:...
Ok, I've done the R173 -> Q111 check, and the diode testing. I hope my annotation makes sense. R173 -> Q111 0.013v Play not engaged 2.7v with...
You might have to look up a service manual to locate them.
A bad sensor makes sense as a culprit for the symptoms. The substitute not-known-good sensor had no effect, with a tape loaded. I don't want to...
I loaded a tape and tested again. The strobe wheel does indeed turn in all operations. So much of what I just wrote is garbage. With or without a...
(this post is rife with errors. The strobe gear operates in both directions when a tape is loaded.) To explore this further... I just checked to...
HS-J36/360 use the same motor board and are a lot cheaper.
[ATTACH] These were the best match I could find. The electrical specs match and the sound is excellent. I can't tell the sound from the originals....
Thank you for the assistance. I believe the sensor was replaced when I swapped in the motor from a different unit. I also tested by cold-soaking...
I'm at the point where I need to seek help. I've fixed many problems with this unit and hope this is the last. I bought it cheap and I think it...
I'm not familiar with the mechanism in the HS-G370. If you can run the player with the motor exposed, you could press on the pulley a bit to see...
I have a set of Aiwa HP-M11 earphones with one side dead. I verified it was not a wiring problem. I disassembled it as much as I could without...
Is Aiwa now like Bell&Howell, where the only thing in common between the present cheap products and the original quality products, is the name?
The rubber capstan rollers should be next. If there isn't the right amount of traction between three things: the rubber roller, the tape and the...
Transferring the rubber also meant I had no issue with the axle size.
Nor could I find exact replacements. I ordered ones that were listed as the same dimensions, but on arrival they were slightly smaller diameter....
A ratcheting sound can be caused by putting the takeup reels on the wrong sides. They are "right-handed and left-handed".
The J36 is an excellent choice to get familiar with the 2ME-7 mechanism. It (and the J360 and J85) are not very desirable and so are not a big...
I also buy only bottom end units and see how good I can get them. Replicating missing knobs and missing label inserts, and fixing broken case...
Separate names with a comma.
