My Technics SU A700 mk2, doesn't have any signal in right channel. During (i am first owner)time I noticed that I had that right channel performance reduced arround 15% compared with the left one. Today, I checked, cables, Jamo Cornet 70III(speakers), they re fine, but I have no sound in right channel, only some poor sound in tweeter, reduced approx. 95% so i gess the problem is in amp. What could be the problem, how to fix,any recomendations,is it worth

SOURCE: Left outside, rained on, no power, worth fixing?

No fixee - new camera

SOURCE: Technics SU-G91 Left channel bad

Did you ever find the solution to the left channel issue? I have the same problem with mine.

SOURCE: How old is my Technics SL 1210 Mk2

Here's some information for you. Since your unit is a SL1210MK2, it may be harder to determine the age of the unit:

It is possible to tell the year (and the month) when the SL-1200 was manufactured from the serial number on the back or bottom of the turntable. SL-1200 serial numbers are in two different formats, depending on the date of manufacture. It isn't exactly possible to determine the decade in which the SL-1200 in question was manufactured, as the serial number contains only the last digit of the year. If the year digit is 8, the turntable may have been manufactured in 1978, 1988 or 1998. If the year digit is 0, the turntable may have been manufactured in 1980, 1990 or 2000. One rule of thumb is that old-format serial numbers belong to SL-1200s manufactured during the 1970s and 1980s, while new-format serial numbers belong to SL-1200s manufactured during the 1990s and beyond.
Old-format serial number: NHOJF20765 (SL-1200 manufactured 1982)
The first digit shows the year when the SL-1200 was manufactured. These serial numbers contain no indication of the month of manufacture. It should be noted that serial numbers in this format contain no letters following digits.
New-format serial number: GE4FB001154 (SL-1200 manufactured June 2004)
The first digit shows the year when the SL-1200 was manufactured, while the month of manufacture is indicated by the letter following it. Months are coded as letters between A and L inclusive; A indicates January, B indicates February, and so on.
In addition to the above, all the SL-1200MK2s from the 70's and early 80's have a 4 inch diameter plate where the RCA and ground wires enter the chassis in the rubber base of the unit. The later models have a smaller hole through which the wires enter the unit.


TWEAK A/V LAB
www.DJPROLAB.com

SOURCE: technics su-v45a

Hi ferrariman

For sure, even though a manual is a bit hard to find for free, we may be able to help you solve the problem. I have worked on alot of technics amps over the years. What is happening to the amp?

regards
robotek

SOURCE: technics su-a808 amp & sh-ge70 graphic equaliser.

connect your media source(dvd-cd player)to equalizer in-connect equalizer out to amplifier line in-or aux in-connect amplifier out to your loudspeaker.