peritus
The not fountain head
I figure I'll touch on a touch on a few problems... Not all at once though, for your sake....
The first problem I'd like to address is a hum sound I hear when monitoring "Line In"... When the deck is set to 7 1/2, it's high pitched and when set to 3 3/4, it's lower pitched.... I think it has something to do with feedback from the motors... My connections not made through the harness, I connect via RCA.
It's strange.
Here are the circumstances when it occurs:
When monitoring through the headphone jack
When monitoring through the line out
With/withhout something plugged into line in
With/withhout something plugged into line out
Doesn't hum when monitoring button is on "Tape", only when monitoring "Source".
With the deck opened up, I tapped each of the modules/cards to see if there was a short in their connections. Nothing changes...
Seems that the monitoring switch does have some "play" in it. Ya know, static upon wiggling...
Volume knob and line knob do not change the volume of the hum
No microphones are connected
-------
My concern is that this hum will make it onto actual recording. I have just started messing with this thing. So, I'm not sure if that's the case, yet. My other problems have hindered my progress on the subject...
The main one is:
In playback, the left channel is weaker than the right. It seems that the hum does not follow this pattern, though.
I inspected/reseated the modules. I see one soldering joint that looks "caved in" if you will. There does appear to still be a physical connection, still. The module in question of one of the recording amplifiers..
Discliamer: I'm a SUPER NOOB to R2R's and electonic diagnostics, in general... Please understand that I do not yet have a service manual for this deck.. Hopefully, I am not mistaken in thinking I should post this...
Thanks to all people would leave helpful replies... I bought this and I'd really like to use it...
Attached is a short clip of me switching between tape speeds... I upped the volume, digitally, to ease your listening experience... Thanks again
The first problem I'd like to address is a hum sound I hear when monitoring "Line In"... When the deck is set to 7 1/2, it's high pitched and when set to 3 3/4, it's lower pitched.... I think it has something to do with feedback from the motors... My connections not made through the harness, I connect via RCA.
It's strange.
Here are the circumstances when it occurs:
When monitoring through the headphone jack
When monitoring through the line out
With/withhout something plugged into line in
With/withhout something plugged into line out
Doesn't hum when monitoring button is on "Tape", only when monitoring "Source".
With the deck opened up, I tapped each of the modules/cards to see if there was a short in their connections. Nothing changes...
Seems that the monitoring switch does have some "play" in it. Ya know, static upon wiggling...
Volume knob and line knob do not change the volume of the hum
No microphones are connected
-------
My concern is that this hum will make it onto actual recording. I have just started messing with this thing. So, I'm not sure if that's the case, yet. My other problems have hindered my progress on the subject...
The main one is:
In playback, the left channel is weaker than the right. It seems that the hum does not follow this pattern, though.
I inspected/reseated the modules. I see one soldering joint that looks "caved in" if you will. There does appear to still be a physical connection, still. The module in question of one of the recording amplifiers..
Discliamer: I'm a SUPER NOOB to R2R's and electonic diagnostics, in general... Please understand that I do not yet have a service manual for this deck.. Hopefully, I am not mistaken in thinking I should post this...
Thanks to all people would leave helpful replies... I bought this and I'd really like to use it...
Attached is a short clip of me switching between tape speeds... I upped the volume, digitally, to ease your listening experience... Thanks again
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