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RX™ 22 Replacement Kit Instructions
/22XT
/22XT
/22XT
/22XT/22XT/22N
/22N
/22N
/22N/22N
Peavey Electronics Corporation • 5022 Hartley Peavey Drive • Meridian, MS 39305
Phone: (601) 483-5365 • Fax: (601) 486-1278 • www.peavey.com • 80302569 • ©2007 Printed in the U.S.A.
1) Remove the diaphragm assembly from the driver by removing the six screws in the top cover.
2) Remov the ferr b inser str filt int t gap allowi t si for one minute. e old ofluid y ting a ip of er paper o he , ng it o t (1)
3) Remove the strip and repeat the process using a fresh piece of paper until no ferrofluid remains in the gap. If you run out of filter paper,
any absorbent paper can be used to complete the job.
4) Inspect the magnetic air gap for the presence of any debr I necessary, clean the gap with a piece of fold tape is. f ed masking
(sticky side out).
5) Usi the notch in t side o the packe locatin guide unscrew the fluid-fille bottle Pour out the contents of the bottle into the ng he f t as a g , d .
magnet structu gap. re
Note: It i best to lay open bottle horizontally on the magnetic gap. you ro the the magnet will s As tate the tip of bottle toward the gap,
pull the ferrofluid from the bottle, and into place. Attempti to dispense the remainin ferrofluid ove fi the air gap, hich has ng g may r ll w
no benefit.
6) Install the structure. the new diaphram assembly, with spacer shim, onto magnet Firmly tighten the six screws. Wor of advice: d
When tighteni t screw tr to tight them down evenly, the same amount as you go around the cover. This will help eliminate ng he s y en
any mechanical distortion in the diaphragm. Thank you for choosing Peavey as your musical instrument supplier.
Note: Remove and discard the enclosed spacer shim if repairing the RX22N. The RX22N comes with its own
spacer shim.
Instructions for Usewith RX 22 :
Before continuing, make sure this package contains the following:
GAP
LOADING
PLUG
SCREW HOLE
FRONT PLATE
LOCATING PIN
HOLE
Procedure:
Instructions for 22XT+™ Diaphragm
Replacement Kit
These instructions are broken into three sections:
1. Driver Inspection, 2. Diaphragm Replacement
Procedure, 3. Failure Analysis. In most cases, following
this order will assure your success.
*Interchangeable with all Model 22A and Model 22
Drivers.
DRIVER INSPECTION
1. Driver Dead: With an Ohm meter (or in a pinch, a
flashlight battery), determine if the driver is open circuited
by measuring at the driver terminals. D.C.
resistance should be in the range of 4.25 Ohms to 4.75
Ohms. Unless you have a precision-calibrated meter
or a bridge, consider the driver to be okay if you're in
the ballpark. If using a battery, no “click” when connecting
and disconnecting the battery means the driver
is open.
2. Driver Noisy or Distorted: If you have a sine wave
oscillator, sweep the driver with 4 Volts from 500 Hz to
2,000 Hz. Any buzzing or distortion will indicate that
the diaphragm must be removed. An intermittent noise
could be a metal particle in the gap. Check the gap
carefully and clean before you replace the diaphragm
to rule out this possibility. A flashlight is a great help. If
an oscilloscope is available, look at the waveform at
the driver to rule out an electronic malfunction if high
distortion is your symptom.
DIAPHRAGM REPLACEMENT PROCEDURE
(see Figures A and B on reverse side)
GASKET
LOCATING PIN
SUSPENSION
DIAPHRAGM
VOICE COIL
Cover Assembly
FAILURE ANALYSIS
You may be able to learn why your driver failed by
inspecting the failed diaphragm assembly. We powertest
and rigorously analyze each diaphragm assembly.
Consequently, there is more than an even chance
that the diaphragm assembly failed because of too
much power input.
1.
The voice coil is copper in color initially and turns
dark brown, even black, under hard use. This is due to
a color change in the epoxy adhesive on the wire
(occurs at 300° F).
Any charring on the wire is a sign of too much power.
If some turns have come off the coil and the wire is
shiny, most likely the coil was rubbing on the gap walls
before failure.
2.
Diaphragm Broken, Cracked or Dented: When
the driver is driven with high amplitude, low frequency
signals at or below the low frequency limit of 500 Hz,
the diaphragm bottoms on the loading plug, causing
the above mentioned damage; also, input power
above the design limit within the passband of the driver
can cause this damage.
3.
Determining Power Input to the Driver: This is an
extremely difficult proposition with program material
even with very sophisticated measuring instruments.
The formula that applies is power=(voltage x voltage)
/ impedance. Assume the impedance listed on the
diaphragm assembly label and use either a calibrated
oscilloscope or Voltmeter to determine Voltage. The
driver is capable of withstanding many times rated
power for short duration but average long term power
(measuring RMS Voltage) is 40 Watts. If your amplifier
is oscillating or your P.A. is operated in feedback,
unusually high Voltage could be applied to the driver
causing failure.
We appreciate your interest in our product; if you
require further assistance, please contact your dealer
or our factory.
Figure A
Figure B
the untapped holes on the front plate. These holes are
easy to locate since they are between tapped holes for
the 8-32 screws. If the gasket will not stay on the
cover, tilt the driver past vertical and let gravity help
you.
8. Gently push the diaphragm assembly onto the driver,
making certain that the locating pins are going into their
holes.
9.
With the cover in place, carefully check the gasket
to be sure it hasn't slipped under the ring. (If it has,
start over or use tweezers to reposition the gasket.)
10. Now that you have assured yourself that the diaphragm
assembly is seated solidly on the front
plate, put the new, longer 8-32 screws into the holes
and tighten. A tightening sequence is not necessary.
Note: (gasket) is The Kapton spacer shim used
on and all other the 22XT+ older 22 drivers.
It
is also used on the RX 22 and RX 22N.
Note: While a necessary component the for RX
22 , the and RX 22N ferrofluid is for the optional
22xt+ kit.
Using the an ferrofluid, however, would be
added the reducing benefit for 22xt+ kit, by the
heating of coil, improving the voice the power
rating response and smoothing the frequency in
the of the mid region driver.
Logo referenced in Directive 2002/96/EC Annex IV
(OJ(L)37/38,13.02.03 and defined in EN 50419: 2005
The bar is the symbol for marking of new waste and
is applied only to equipment manufactured after
13 August 2005
*see Ferrofluid Safety Information on Reverse side of this
sheet.
•One (1) ferrofluid filled packet
•This instruction sheet/ Material Safety Data
Sheet
•R 22 replacement diaphragmX
•Kapton RX22 22XT Spacer Shim (for use with and )
•8-32 screws
1. Clean the front plate and environment of all metal
particles.
2. Remove the six 8-32 screws holding the diaphragm
assembly to the front plate. These will be replaced with
a longer screw, included (71500875).
3. Remove the failed diaphragm assembly to a safe
place to prevent damage so that we can inspect it.
(You might want to look closely at it, too.) Please return
the failed diaphragm assembly to your dealer or
directly to Peavey using the box in which the new
assembly arrived. Describe the operating conditions
surrounding the failure with as much detail as possible.
This information will help immeasurably in improving the
performance of our products.
4. Fold a piece of 3/4" wide masking tape into a triangle
shape with the adhesive side out. Using a flashlight
to see into the gap in the magnet structure, slide tape
around the entire gap to clean out all metal chips and dirt.
5. Install shimthe included spacerKapton .
6. Make certain the rubber gasket is properly seated
on the new cover assembly, exposing the entire aluminum
ring. The ring must sit flat on the front plate
when in place.
7. By eye, line up the locating pins on the cover with
Ferrofluid
Material Safety Data Sheet
PRODUCT IDENTIFICATION
Manufactured by: Ferrofluidics Corporation
40 Simon St.
Nashua, NH 03061
Emergency Telephone: (603)883-9800 (x212)
Chemical Name: Proprietary Product
Trade Name and Synonyms: APG S Series
Chemical Family:
Formula:
Colloidal Dispersion
Mixture
COMPONENTS – the precise nature of this
mixture is proprietary information. A more
complete disclosure will be provided to a
physician or nurse in the event of a medical
emergency.
Magnetite:
Oil Soluble Dispersant:
Carrier Liquid:
Aromatic Amine:
1 – % by volume 7
7 - 50% by volume
41 - 92% by volume
0 – 2% by volume
3. CHEMICAL AND PHYSICAL PROPERTIES
Boiling Point (°F)
Specific Gravity
Vapor Pressure (mm Hg.)
% Volatile by Volume
Vapor Density (Air=1)
Solubility in Water
Evaporation Rate (175°C)
Appearance and Odor
>300 with decomposition
1.0 to 1.4
Negligible at 20°C
Negligible
>Air
Negligible
1.5 x 2.8 x 10¯ gm/cm sec
Black fluid – Mild Odor
4. FIRE AND EXPLOSION HAZARD AREA
Flash Point:
Method
Flammable Limits
Extinguishing Media
> 00°F 2
PMCC
uel and lel Not Determined
CO , Foam Dry Chemical,
Special Fire Fighting
Procedure:
Water Spray
Avoid smoke
Water
may cause frothing
Unusual Fire or Explosion Hazard: None
5. HEALTH HAZARD AREA
THRESHOLD Limit Value: 5mg/M
3
for oil mist in air
(OSHA Regulations 29 CFR 1910-1000 . )
Effects of Overexposure: No experience with overexposure.
Prolonged or repeated contact with skin or eye contact
may cause irritation. Inhalation of mist or vapor at high
temperature may irritate respiratory passages.
Emergency and First Aid Procedures:
Skin Contact:
Inhalation of
Smoke or Mist:
Wash with soap and water.
Flush with water,
consult physician for
treatment.
Move to fresh air and refer to
p
hys
ic
ia
n
for treatment.
6. REACTIVITY DATA
Stable
Pyrolysis
Strong oxidizing materials,
heat, and flame.
Stability:
Conditions to avoid:
Incompatibility
(materials to avoid):
Hazardous Decomposition
Burning may produce
Products:
carbon monoxide and
nitrogen oxides.
Hazardous Polymerization:
Will not occur.
Eyes:
1.
2.
7.
SPILL OR LEAK PROCEDURES
Steps to be taken in case material is released or spilled: Remove free liquid. Add
absorbent (sand, earth, sawdust) to spill area. After removing absorbent, wash
surface with soap and water to reduce possible slipping hazard.
Waste disposal Method:
Consult federal, state, and local regulations
applicable to the disposal of waste oils.
8
.
SPECIAL
PROTECTION INFORMATION
Respiratory Protection (specific Type): None required unless smoke, mists or vapors are
produced.
Ventilation:
No pecial t s ven
ilation red. requi
Protective gloves:
Eye protection:
Other protective equipment:
If required to prevent prolonged or repeated
skin contact.
Safety glasses, if splash is possible.
needed.Not
9
.
SPECIAL PRECAUTIONS
Precautions to be taken in handling and storing:
Wash hands after handling.
Other precautions:
Avoid contamination of tobacco products. Users
should be aware that a very small percentage of
the population may experience unexpected
allergic skin to otherwise innocuous reactions
industrial chemicals and raw materials.
10. COMMENTS
*
This product DOES T NO contain any materials considered to be carcinogen by any ic
recognized sources.
**This material is not sold for use in products for which prolonged contact with skin
or implantation in the human body is intended. Ferrofluidics Corporation does not
recommend this as safe and effective for such uses and assumes no liability material
for any such use.
***This product does not contain any chemical subject to the reporting requirements
of Section 313 of Title III of the Superfund Amendment and Reauthorization Act of
1986 and 40 CFR Part
372.
Produktspecifikationer
| Varumärke: | Peavey |
| Kategori: | högtalare |
| Modell: | RX 22N |
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