|
Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
|
Thread Tools |
26th Apr 2017, 9:55 pm | #1 |
Rest in Peace
Join Date: Feb 2004
Location: Hexham, Northumberland, UK.
Posts: 2,234
|
TEAC 8-08 Tascam 8 track reel to reel no record
Hi all, a friend has dropped this machine off tonight for repair. Apparently the machine plays back fine and the transport is ok but there is no record on any of the eight channels, although the VU meters show record signal. I have not done a functional check yet but was wondering if anyone has a circuit for this machine, or know where to find one. Thanks in advance.
Alan. |
27th Apr 2017, 8:52 pm | #3 |
Rest in Peace
Join Date: Feb 2004
Location: Hexham, Northumberland, UK.
Posts: 2,234
|
Re: TEAC 8-08 Tascam 8 track reel to reel no record
Thanks for that ITAM.
|
29th Apr 2017, 6:42 am | #4 |
Dekatron
Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,669
|
Re: TEAC 8-08 Tascam 8 track reel to reel no record
Manual here - https://www.hifiengine.com/manual_li...eac/80-8.shtml The 80-8 has 8 amplifier cards that are accessed via the bottom panel. Each has three relays for switching the signals. The relays used were made by NEC and are known to go OC. I have some amplifier cards out of the Tascam 38 that may have the same relays on if you get stuck for spares. Oh, there's a Rifa cap on the on/off switch that will wanting changing if it hasn't gone already.
You can still get some of the logic IC's from the USA, though some are very hard to find. There's a couple of good Tascam/Teac forums online, one on a reel to reel/recording forum. just had a look in my bookmarks but can't find them. Hope that helps, Andy.
__________________
Curiosity hasn't killed this cat...so far. |
2nd May 2017, 12:26 pm | #5 |
Octode
Join Date: May 2007
Location: Liss, Hampshire, UK.
Posts: 1,876
|
Re: TEAC 8-08 Tascam 8 track reel to reel no record
It may also be worth looking up Sam Palermo from Skywave Services in the US as he tends to be a good source of information on old Teac/Tascam gear.
|
16th May 2017, 1:31 am | #6 |
Tetrode
Join Date: May 2010
Location: Mountain Home, Arkansas, USA.
Posts: 68
|
Re: TEAC 8-08 Tascam 8 track reel to reel no record
I understand it's now a known problem with the 80-8 that several capacitors in the master bias oscillator are bad by now, and require replacement, so it would be wise to check those as well.
|
16th May 2017, 5:37 am | #7 |
Octode
Join Date: Mar 2006
Location: Lund, Sweden
Posts: 1,632
|
Re: TEAC 8-08 Tascam 8 track reel to reel no record
Yes, it would seem that if recording all eight channels has failed at the same time, the culprit is likely to be some common component, such as the bias oscillator.
|