Ages of turntables from serial number mk2/GE2DY001761 and NH0KF22361/ GE3GQ50801, GE3GQ50798
SOURCE: technic 1200 mk2 turntable wont spin
need to know if it powers up. Does it try to spin, do you hear it trying to spin? More than likely the on/off switch went bad. No, I am not referring to the ON/OFF knob. THere is a switch this engages when turned. The part is S601. You might also want to replace the Start/Stop switch as well. If neither work, then the issue is on the main PC board, and probably IC101, or IC201 with the problem. At this stage, you will have to have a service tech look at your unit.
SOURCE: technics 1210 mk2 problem with pitch and lights
Check that your voltage settings are set correctly. This is located
underneath your turntable platter. If you remove the slipmat, you will
see 2 holes on the metal platter. Rotate the platter till you see the
voltage switch, located @ the 9'o'clock position. Make sure it's set to
your correct settings (N.America = 115V / Euro = 220V). If not, you
will need a flat head screw driver to switch it. Before you switch it,
make sure your unit is off and unplugged. After you swich it, it should
be ok.
If your still having issues with the speed and the pop-up
light, then there is something seriously wrong, and will need to be
checked by a technician. Sometimes a resistor or IC will go bad,
causing the speed issue, but for the pop-up light - that's usually
faulty wiring generally caused by an incorrect replacement.
Did you buy this new or used? Have you had this serviced recently?
- TWEAK AV LAB
The ORIGINAL TURNTABLE Technicians
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: How do I change belt on a Technics linear SL -H350 turntable
http://www.archive.org/details/Turntable_Belt_Installation
above video should help. if your platter is "stuck" then call them for tips. also make sure it does NOT say "direct drive" on the front of the unit.
presuming you are talking about the SL-H350 as in the body not the SL-DZ1200 as in the title
SOURCE: help for technics 1200 MK2 and 1210 Speed is too fast
On the 1200MK2 the pitch control slider is for just that purpose. Disregard the 0 setting and use the illuminated strobe marks on the platter to adjust to nominal speed. When they appear to be motionless you are there. The control on the 1210 may be a knob but the same principles apply.
http://en.wikipedia.org/wiki/Technics_SL-1200
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