Lasonic TRC-931 2nd edition

[Lasonic TRC-920]

Deck A: 16" long, .046" diameter square belt

Deck B: 8" long, .046" diameter square belt Main and 4.7" long, .039 diameter square belt Counter

Available here: http://www.studiosoundelectronics.com/belts.htm#kit

 

[baddboybill]

Awesome info Chris I thought I posted the belt sizes years ago for all three versions but I could be wrong.

 

[Lasonic TRC-920]

Awesome info Chris I thought I posted the belt sizes years ago for all three versions but I could be wrong.

You may have, I searched but couldn't find 931 listed here, so I posted it.

 

[SLO]

Thanks Chris and Bill, belts ordered

 

[Lasonic TRC-920]

 

[Will]

What size belt does the Lasonic 920 have?

 

[Lasonic TRC-920]

What size belt does the Lasonic 920 have?

I have no idea. Search the belts section, might be in there Not sure

 

[Will]

I have no idea. Search the belts section, might be in there Not sure

Thanks I'll take a look.

 

[caution]

Did you notice that there's a second belt on deck A? It's also on the motor spindle, it's very small, maybe around 2", but looks like a real mofo to replace, you can't just pop it off. It's between two plates that would require some amount of disassembly. Thankfully mine is okay!

 

[caution]

 

[baddboybill]

Looks pretty easy maybe the 2 screws and lift plate up enough to slide belt on and off.

 

[BoomboxBrandon]

Are they different sizes for a first edition 931?

 

[Lasonic TRC-920]

Are they different sizes for a first edition 931?

This I don't know, But I will be doing a 1st gen in a few months, I will post up in the belts section when I do.

I just sent a message to member Dr Der, he just did a pair of 931's, If I hear back, I will post it here

 

[baddboybill]

Are they different sizes for a first edition 931?

Yes deck is different on 1st edition. 2nd and 3rd editions are full mechanical and 1st is more mechanical/automatic

 

[Lasonic TRC-920]

Are they different sizes for a first edition 931?

Yes deck is different on 1st edition. 2nd and 3rd editions are full mechanical and 1st is more mechanical/automatic

Well there you go!

I will measure the belts on the 1st gen when I tear into it....stay tuned!

 

[Lasonic TRC-920]

Bad news, it appears they are now sold out of the large belt for the top deck

 

[Hajidub]

SBS16 for the top deck, bottom (on my 2nd edition) doesn't take an SBS 8. Mine had two 4.7's (one for counter) and what looks like a 6-ish (didn't measure but was slightly larger than the other matching 2.

 

[Hajidub]

SBS16 for the top deck, bottom (on my 2nd edition) doesn't take an SBS 8. Mine had two 4.7's (one for counter) and what looks like a 6-ish (didn't measure but was slightly larger than the other matching 2.

SBS16 for top deck, a little tricky to put on since you have a handful more screws to remove to access the deck. I just did Tape B yesterday for my 931 2nd ed. Tape B takes (2) belts SBS 4.6 and SBS 5.1. 5.1 goes from the motor (accessible by 1 small screw) to right reel on top, 4.6 goes from right reel bottom to left reel gear linkage. Both accessible from inside without moving Tape B screws. I did not belt up the counter since no manual is available and couldn't find how it connected. Both decks work with no excessive W&F.