18
th
August 1999
Valhalla Service Manual
Page8
Copyright © 1999 Linn Products Limited. All rights reserved.
Turntable Motor Problems
Important – Do not carry out any work on or near the Valhalla while it is powered up before reading
the ‘
It is assumed at this point that you have checked that the Valhalla is definitely the cause of the fault – not a
bad connection, a faulty motor or anything on the LP12. If you have not, please do so before proceeding – if
you can get access to another LP12, try connecting the Valhalla to it to rule out the turntable motor etc.
Turntable Motor Problems
Symptom
Circumstances
Possible Cause(s)
Cure
Turntable motor
does not turn at
all when turntable
is switched on.
Motor may buzz
or vibrate.
Switch LED lights
Symptoms may
vary.
R32 faulty – has gone open
circuit (usual value =
560Kohm).
Replace R32 – Linn part no:
RES 011
Turntable motor
turns very weakly
(may require a
push to get
started etc) or
may turn only for
a short time.
May work for a
while then stop &
vibrate or buzz
Switch LED lights
Symptoms may
vary.
R32 faulty – has gone open
circuit (usual value =
560Kohm).
Replace R32 – Linn part no:
RES 011
Turntable motor
turns backwards
May also have
low torque
Switch LED lights
Symptoms may
vary.
R32 faulty – has gone open
circuit (usual value =
560Kohm).
Replace R32 – Linn part no:
RES 011
Turntable motor
buzzes
(otherwise seems
to work okay)
Switch LED lights
Probably constant
Symptoms may
vary
R32 faulty – has gone open
circuit (usual value =
560Kohm).
Replace R32 – Linn part no:
RES 011
Turntable motor
does not turn at
all when turntable
is switched on
Motor may buzz
or vibrate.
Switch LED lights
May be intermittent
and symptoms may
vary.
One of the smoothing
capacitors has gone faulty –
C9, C10, C11, C12 & C13
It can be difficult to ascertain
which capacitor is the cause
without fault finding on the
live circuit, so it is much
easier just to replace all 5
capacitors
Replace faulty capacitor(s) – Linn
part no: VAL 004 for all.
