PS Engineering PM3000 - Manual (Page 3)

Page 10 200-193-0004 Rev. 4, Aug. 2003
Appendix B- Instructions for FAA
Form 337
One method of airworthiness approval is
through an FAA Form 337, Major Repair and
Alteration (Airframe, Powerplant, Propeller, or
Appliance) In the case of the PM3000, you may
use the following text as a guide.
Installed x-place intercom, PS Engineer-
ing PM3000, part number 1193(_) in
( location ) at station . Installed per
AC43.13-2, Chapter 2, paragraph 23
(Instrument Panel Mounting). Installed
per PS Engineering Installation Opera-
tors Manual p/n 200-193-xxxx, revision
x, dated ( ).
This unit is FAA-Approved under TSO
C50c for audio amplifiers, and meets
environmental tests outlined in RTCA
DO-160C as appropriate or this aircraft.
Interface to existing aircraft radios in ac-
cordance with manufacturer’s installa-
tion manual and in compliance with
practices listed in AC43.13-2, Chapter 2.
All wires are Mil-Spec 22759 or 27500.
No connection to the aircraft dimmer
bus is required. Power is supplied to the
unit through a 1A circuit breaker (type
and part number), and total electrical
load does not exceed % of the
electrical system capacity with the
PM3000 added.
Aircraft equipment list, weight and bal-
ance amended. Compass compensation
checked. A copy of the operation in-
structions, contained in PS Engineering
document 200-193-xxxx, revision (x),
(date) , is placed in the aircraft records.
All work accomplished listed on Work
Order .
Appendix C, Instructions for con-
tinuing airworthiness
The PM3000 is considered an “on-condition”
maintenance item. It is checked prior to each
flight during normal operation. There are no ad-
ditional considerations for continuing airworthi-
ness other than the practices detailed in AC
43.13-1A, Chapter 15, Paragraph 750. This in-
cludes inspecting the unit to be sure it is se-
curely fastened in its location, and that the wir-
ing harness is not chafed or pinched, and re-
mains secure. All panel jacks should be checked
at each periodic inspection to ensure that they
are tight and not in contact with other items be-
hind the instrument panel.
Appendix D Wiring Information
1 2 3 4 5
14 15 16 17 18
6 7 8 9
19 20 21 22
10
23 24
11 12
25
13
P
ow
er
(
11
-3
3
V
D
C
)
G
ro
u
nd
A/C
R
a
dio Input
Pass 4 M
ic H
i
Pass 2 & 4 Phones (R
)
Pass 1 & 3 Audio (R
)
M
u
sic Input #1 (L)
Pass 2 M
ic H
i
Co
p
ilo
t Mi
c Hi
Pass 1 M
ic H
i
C
o
pilot PTT
Pilot M
ic Audio H
i
Pilot PTT
A
/C Ra
d
io
P
T
T
A/C
M
ic Audio H
i
M
u
sic Input 2 (R
)
M
u
sic Input 2 (L)
Pass 3 M
ic H
i
Pass 2 & 4 Phones (L)
M
u
sic Input 1 (R
)
Pass 1 & 3 Audio (L)
C
opilot Phones (R
)
C
o
pilot Phones (L)
Pilot Phones (R
)
Pilot Phones (L)
DB 25 Unit Connector
Page 3 200-193-0004 Rev. 4, Aug. 2003
1.4 Approval Basis
The PM3000, part number 11931 or 11932, is
FAA-approved under TSO-C50c, and RTCA,
Inc. DO-214. Due to the fact that there is no
TSO for the recorder function in the 11933 and
11934, these units are not fully TSO-approved.
It is the responsibility of the installer to deter-
mine the approval basis for these units.
1.5 Specifications
Input power: 13.8 - 27.5 Volts DC
Current Drain:
< 200 mA (Externally fused at 1 Amp)
Headphone Impedance: 150-1000
Ω(typical)
Audio Distortion:
<1.2% @ 50mW into 150
Ω load
Aircraft Radio Impedance: 1000 Ω (typical)
Mic Frequency Response:
±3 dB, 350 Hz — 6000 Hz
Music Frequency Response:
±3 dB, 200 Hz – 15 kHz
Unit weight: 12 Ounces (0.34 kg)
Dimensions:
1.25" H x 3.00" W x 5.50" D
(3.2 x 7.6 x 14.0 cm)
Environmental and technical qualifications:
RTCA DO-160C/DO-214
A1D1/CA(MN)XXXXXZBBBBTBKXX
Temperature -20º to +55º C
1.6 Equipment required but not
supplied
A. Interconnecting cables as required (may be
ordered from PS Engineering)
B. Headphones, 150 Ω stereo, as required
C. Microphones, general aviation, as required
D. Interconnect wiring
E. Crimping Tool, AMP (661966-1 or equiv.)
and Positionerg 601966-5
F. Circuit Breaker 1 Amp.
Section II Installation
2.1 General Information
The PM3000 comes with all mounting hardware
and jacks for installation. Installation of the
PM3000, using the hardware supplied and avail-
able wiring does not require special tools or
knowledge other than those used in the industry,
and described in FAA Advisory Circular 43.13-
2. It is the installer's responsibility to determine
the approval basis for this installation. An FAA
Form 337, or other approval may be required.
See Appendix B for example of FAA Form 337.
2.2 Unpacking and preliminary
inspection
The PM3000 was carefully inspected mechani-
cally and thoroughly tested electronically before
shipment. It should be free of electrical or cos-
metic defect.
Upon receipt, verify that the parts kit includes
the following:
PM3000 Installation Kits:
Part Number Description 11931 11932 11933 11934
475-442-0002 #4-40 Machine screws, black 2 2 2 2
625-003-0001 Knobs (Soft Touch) 2 2 2 2
575-030-0001 PM3000 Faceplate (w/crew) 1 1
575-030-0003 PM3000 Faceplate (no crew) 1 1
425-025-0010 25 pin Sub-D connector shell 1 1 1 1
425-020-5090 Crimp Sockets 25 25 25 25
625-025-0001 Connector hood 1 1 1 1
475-002-0002 Connector Thumbscrews 1 2 1 2
200-193-0003 Operator's and Installation Manual 1 1 1 1
122-001-0000 Drill Template 1 1 1 1
475-003-0002 Insulated Shoulder Washers 9 13 9 13
475-003-0001 Insulated Flat Washers 9 13 9 13
550-001-0002 Stereo Headphone Jack 4 6 4 6
550-001-0003 Microphone Jack 4 6 4 6
550-008-0001 Music Input Jack ⅛” 1 2 1 2
550-005-0001 IRS Plug (3.5 MM mono) 1 1