Q8: Akai CR-80D-SS Q8 Recorder/Player

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iyouwas

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Jul 6, 2012
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Pittsburgh, Pa.
Hello all, my Akai arrived today!

Not bad I must say,,, playing slightly, and I mean slightly slow.
I'm a little worried about it though, because when I record on it it might play a little fast in my deck in the truck.
Is there a speed adjustment besides the switch on the bottom of the unit itself?
Gotta be a speed adjustment internally somewhere right?
 

iyouwas

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Jul 6, 2012
Messages
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Location
Pittsburgh, Pa.
Ok. So after it has been played for awhile, it seems to get up to speed. Where are the points of oiling the mother etc located?
 

sixthday

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May 16, 2014
Messages
10
Maybe it is two years late. But, maybe it is still a mis.

In fact, there is nothing wrong with it. I just bought of these tape. The tape has audio tape on both side!
 

brymac

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Sep 8, 2015
Messages
5
Just bought one of these from the US and had it shipped to the UK. Changed voltage and frequency to 240V 50Hz, but am getting a background 50Hz hum - any ideas please?

Bryan
 

DuncanS

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Just bought one of these from the US and had it shipped to the UK. Changed voltage and frequency to 240V 50Hz, but am getting a background 50Hz hum - any ideas please?

Bryan
Assuming its only required switch settings on the back of the unit from 110V->240V & 60Hz->50Hz - then an Earth loop with the rest of your kit, poor Earthing, or a dry solder joint in the Akai.
 

brymac

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Sep 8, 2015
Messages
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Thanks - and sorry that I missed this reply (must check my notification settings!).

I've tried earthing the chassis, but no luck. Yes - both the voltage and frequency are set to UK requirements.

The unit only hums once I press the play button, so I guess it's to do with that part of the circuit being completed. I am more au fait with valve (tube) gear than solid state kit. With valve equipment, I'd be looking at the smoothing caps leaking and feeding the 50Hz into the circuit.

Any ideas?

Bryan
 

brymac

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Sep 8, 2015
Messages
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Sorted! Sometimes it's the obvious things that you miss!!!

The CR-80D was placed next to my huge Saba valve radio which acts as the amp for the front channels. It was clearly picking the hum up from that - when I moved them about 4 feet away from each other the hum disappeared!!

Just bought Dark Side of the Moon on Quad - wow!!!

Bryan
 

rawmacias

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Jun 2, 2012
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Merced, Calif
I picked this unit up in Pleasanton CA. from a guy ( original owner ) my 7001.jpgwho had a complete Sansui quad system. It works and sounds great ! Yeah , it would be nice if the vu meters lit up. Right after I bought it , the thought of installing led lighting popped in my head , just for a second. I've had this unit just the way I bought it for about three years now and it is still working great !
 

Marcsten

500 Club - QQ All-Star
Since 2002/2003
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Sep 24, 2002
Messages
534
Location
Seattle
I have two of these decks. The first one was a thrift store find and the second bought online because the first deck has a channel going in and out. I use the deck mainly for converting Q8s to Q4s with fantastic results. However, recording is difficult with no pause and having to wait for the tape to "come around" to get to the place you want to record. Friends are amazed when they find out they are listening to an 8 track tape. It is my opinion many tapes get tangled on the capstan because of the foil splice, which is in the process of coming off on most tapes. Another thing I have noticed is that regular reel tape does not work in an 8 track shell. The gray grahite looking backing on 8 tracks tape is apparantly required for 8 tracks to work.
I got one of these back in about 1980. I was thrilled to find it at Huppins Hi Fi in Spokane, WA. I bought it right away. I still own it. I have the issue with channels cutting out, but I found that if you remove the cart and stop the player, then press the record button (loud pop) then hit 'stop' so that the record is disengaged, and it now works in all four channels. I can't recall how I figured this out now, 40 years later, and I understand that different units have different causes for the dropout, but give it a try! My recent conversation with Quad Bob included a reference to him having one of these and rehabbing it to get rid of the crackle/dropout issue. Maybe some day...
 

LetsRecapVintageHIFI

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Feb 15, 2021
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Location
Wichita KS
I'd also like to get mine rebuilt, starting to take long warming up before all the static goes away.
I'm looking into the what 3 pin replacement Transistors I need for the pre amp board.
Component reference designator TR2, Part number 2SC693 and TR3 2SC7111.
And if these two parts don't clear up the noise, then I need to figure out a mod for the 9 pin IC-1, Sanyo LD 3141 albatross.
 

dauQula

Well-known Member
Joined
Aug 13, 2004
Messages
189
Location
Midwest
Best Q8 deck I've owned so far and I've had a few!

Love: The Erase Head, The Washing Machine sized Motor, the Stop/Play/FFWD controls.
Hate: Non-illuminated VU's, inability to toggle between 2ch/4ch mode, no 4ch headphone output, no pause button.

Clearly, the Good outweighs the Bad. I upgraded to one of these from a Panasonic/Technics 858. Loved the styling, lighted VU's, pause button and Noise Suppressor on the Technics, but it's motor was weak and the cartridge latching system left much to be desired. Recording on it was easy with the pause button (very useful when editing) but with no erase head and my degausser on the fritz (and the SHITTY motor in the unit) made recording impossible. The tape speed varied too much so that playing tapes in other decks was laughable. I'd almost wager that the power supply in the 858 is under sized. The lights would dim significantly when recording and restarting the motor. Took way too long to get up to speed.

My Akai on the other hand made my US Q8 of DSOTM discrete. I recorded the discrete Alan Parsons mix onto the tape, in the order of the US Q8 ;) and the Akai had NO issues. Wiped out the old recording and with steady speed made a GREAT tape to audition at car shows! (all my AMC's are Quad-Capable).
Well, I took care of the non-illuminated VU's with a UV LED (UV's for VU"s?). Turns out the needles already have florescent paint on them. All I needed was to retrofit another transformer module and replace the front panel switch with another jack. Presto! Two "downsides" taken care of. I am studying the pause circuitry on the Akai GXR-82D to see if it can be modified for the CR80/D/-SS. 20210328_183259.jpg20210328_183223.jpg
 

LetsRecapVintageHIFI

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Feb 15, 2021
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Location
Wichita KS
The UV illuminated VU meters look is awesome. This is something I might replicate.

"replace the front panel switch with another jack."

What do you mean by this? Replace which front panel switch with another jack?

Thanks
 
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