EML SynKey Owner's Manual page 27

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SECOND TOUCH
GATE BUSS
Fig. 11 Underside of SynKey
IX. MAINTENANCE: SynKey does not
require any routine maintenance. You may,
of course, clean the panel and keys with a
clean damp cloth and care for the wood as
with any fine furniture.
In the event of difficulties, the following
owner maintenance may be performed
(carefully) without voiding the warranty.
Keyboard Cleaning: The gold contacts of all
synthesizer keyboards are susceptible to
atmospheric contamination. Various pollutants
coat the contacts and can cause problems.
The cleaning process is easy and access
to contacts is provided. Here's how to tell
when your SynKey needs contact cleaning:
SAMPLER BUSS
KEYBOARD CONTACTS
Symptoms:
1. Depression of certain keys sometimes
produces erratic pitch.
2. A single key depression sometimes
produces more than one envelope.
3. Envelopes sometimes re-attack when a
key is released.
4. Second touch erratic.
Cure:
1. Unplug SynKey. Turn it over and place it
on a soft towel.
2. Remove bottom panel by unscrewing
eight indicated screws. (See Figure 11)
3. Observe the keyboard busses. To an
extent these are self-cleaning contacts. Push
a key and notice how the gold spring rubs
across the buss bar with a cleaning action.
4. To clean contacts, apply TV TunerSpray:::
or tape recorder head cleaner to a twisted
pipe cleaner of Q-Tip cotton swab. Wipe the
sampler, gate, and second touch busses
with a motion paralleled to the length of the
buss. IMPORTANT: do not apply so much
pressure that the buss bends.
5. Place SynKey in playing position on flat
surface. Plug in and check for proper
operation. If second touch remains erratic
and busses are obviously not making
contact, bend U-shaped buss very slightly to
ensure contact.
6. replace bottom panel.
Fuse Replacement: SynKey is equipped
with a fuse to protect the power supply.
If the fuse fails, the front panel indicator
light will go off and the instrument will
produce no sound.
To replace, remove failed fuse and install a
new 3 AG Va amp SLO BLO fuse. If the
replacement fuse fails, DO NOT try another.
Contact your dealer or authorized local
service center.
Trouble Shooting
1. No Sound. It is possible for the SynKey to
produce no sound even if the indicator light
is flashing. Here are three typical causes:
a. Incomplete or improper patch is
programmed (i.e no semitone select button
down).
b. Failure of the patch cord itself.
c. Amplifier failure or nonfunction.
2 Remedies
a. Program a known patch and listen at
the SynKey's high level output with high
impedance headphones.
b. If SynKey sounds correct through
headphones, reconnect it to amplifier,
making sure amplifier controls are correct.
c. If amplifier generates no sound, the
problem is in the patch cord or amplifier
itself.
*EML recommends Archer's TV Tuner
Cleaner, available from any Radio Shack.
No other user maintenance is permitted
under the warranty. You have purchased
an expensive precision instrument. We
recommend, in the event of difficulties, that
it be serviced only by factory or distributor
authorized service facilities. SynKey should
be shipped only in original packaging.
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