The LF unit may be re-coned in the normal way. Ease the trim ring from the rubber
surround and remember to refit it. The trim ring forms an integral part of the HF
dispersion system. Use only the parts and adhesive supplied in the re-cone kit.
Crossover.
The crossover is mounted on the rear panel of the cabinet, behind the drive unit. To
inspect it, the drive unit has to be removed first. Take care to avoid undue stress on
the cables and components.
To remove the crossover completely the cables must be disconnected from the drive
unit. Please proceed as above to remove the drive unit.
Checking the unit.
The speaker can be checked using a sine wave generator. A high quality, low
distortion (preferably a beat frequency) oscillator will be required to check for any
buzz and rattle noise generated by the drive unit. The voltage to be applied at the
speaker terminals should be about 3V rms (the speakers should be free from buzz
and rattle at any audio frequency).
Checking the speaker at higher levels is permissible, provided that the lower
frequency of the sweep is limited according to the voltage level ; for instance with
levels exceeding 10V rms the frequency should be kept above 100 Hz.
List of spare parts.
PART NUMBER
DESCRIPTION
9900 0314
System 1200 cabinet assembly
7900 0459
Driver kit 3139
7900 0460
Recone kit for LF unit
7900 0199
HF diaphragm assembly
6839 0050
Gasket, 12 inch driver
4504 5725
M5 x 30 cap screw (driver screw)
6184 0009
Port tube
7300 0569
Crossover assembly
4940 0052
Termination panel
6481 0282
System 1200 user manual
6730 0335
Carton System 1200
6460 0073
Moulded badge & label
Warranty
No maintenance of the monitors is necessary.
All components are guaranteed for a period of five years from the date of
manufacture, subject to the absence of, or evidence of, misuse, overload or
accidental damage.
For further information please contact your dealer or the distributor in your country.
If you cannot locate your distributor please contact :
Customer Services
Tannoy Ltd
Rosehall Industrial Estate
Coatbridge, Strathclyde
ML5 4TF
Telephone
01236 420199 (UK)
+44 1236 420199 (International)
Fax
01236 428230 (UK)
+44 1236 428230 (International)
