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· Touch your tool to the ground (grounded metal structure, etc.) before
you use it.
· Use a tip-grounded soldering iron.
· Put the removed printed circuit card assemblies on a grounded
conductive surface.
D. We give the IPC figure-item numbers in square brackets [ ] after the
assembly or part names. We do not give alpha-variant item numbers if
they are not shown on the IPC figures.
E. The primary assemblies in the VMU are as follows:
DESIGNATION FULL NAME QUANTITY
A1 card CPU card assembly 1
A2 card Modulator card assembly 12
A3 card RF power card assembly 1
A4 card Power card assembly 1
A5 card Mother card assembly 1
A6 card Fuse card assembly 1
A7 card Connector card assembly 1
A8 card Video signal generator card assembly 1
For the printed circuit card assemblies, we use their designations only
(A1 card, A2 card, etc.) as their names.
Page 702
Jul 20/2005
Panasonic Avionics Corporation
COMPONENT MAINTENANCE MANUAL
PART NUMBER RD-AA5002 SERIES
23-32-47
2. Tools and Materials Necessary for Assembly
NOTE: You can use alternatives for the items given in the list. The source
is as follows:
· Panasonic for Panasonic Avionics Corporation
· C/A for available from commercial sources
· Trademarks or company names for other sources.
ITEM (SOURCE) DESCRIPTION
Standard Tools (C/A) Use them as necessary.
Insulating Compound
(C/A)
Use this for protection of the soldered areas on
printed circuit card assemblies. Electrical insulating
compounds specified in MIL-I-46058B Type AR are
satisfactory, such as HUMISEAL 1B15H or 1A27.
Page 703
Sep 20/2004
Matsushita Avionics Systems Corporation
COMPONENT MAINTENANCE MANUAL
PART NUMBER RD-AA5002 SERIES
23-32-47
3. Installation Procedures
A. Installation of A1, A2, A3, and A4 Cards
Refer to Figure 701 for the installation position of the A1, A2, A3, and
A4 cards.
FRONT
A1 CARD
CH12
CH11
CH10
CH9
CH8
CH7
CH6
CH5
A5CN19
A5CN18
A5CN17
A5CN16
A5CN15
A5CN14
A5CN13
A5CN12
A5CN11
A2 CARDS
CH4
CH3
CH2
CH1
A5CN9
A5CN8
A5CN7
A5CN6
A5CN5
A5CN10
A3 CARD
A4 CARD
TOP VIEW OF VIDEO MODULATOR UNIT
Figure 701
(1) Put the A1 card [1-45/46] into the card slot and fully connect it to
the A5CN19 connector on the A5 card [1-115].
NOTE: The A4 card [1-60] has the same connector as that of the A1
card [1-45/46]. Identification is easy because the A4 card
has heat sink assemblies.
(2) Put the A4 card [1-60] into the card slot and fully connect it to
the A5CN5 connector on the A5 card [1-115].
(3) Connect the cable from the fan assembly [1-65] to the A4CN402
connector on the A4 card [1-60].
(4) Put the A3 card [1-55] into the card slot and fully connect it to
the A5CN6 connector on the A5 card [1-115].
Page 704
Feb 20/2002
Matsushita Avionics Systems Corporation
COMPONENT MAINTENANCE MANUAL
PART NUMBER RD-AA5002 SERIES
23-32-47
(5) Go to:
· Step (6) for part number RD-AA5002-12 or RD-AA5002-22
· Step (7) for part number RD-AA5002-23
· Step (8) for part number RD-AA5002-25.
(6) Put the A2 cards [1-50] into the card slots and fully connect them
to the A5CN7 thru A5CN18 connector on the A5 card [1-115].
(7) Install the A2 cards [1-51 and 1-52] as follows:
(a) Put the 50-W input A2 cards [1-51] into the card slots and fully
connect them to the A5CN7 thru A5CN17 connectors on the A5 card
[1-115].
(b) Put the 100-W input A2 card [1-52] into the card slot and fully
connect them to the A5CN18 connector on the A5 card [1-115].
(8) Install the A2 cards [1-53 and 1-54] as follows:
(a) Put the 50-W input A2 cards [1-53] into the card slots and fully
connect them to the A5CN7 thru A5CN12 connectors on the A5 card
[1-115].
(b) Put the 100-W input A2 cards [1-54] into the card slots and
fully connect them to the A5CN13 thru A5CN18 connectors on the
A5 card [1-115].
B. Installation of A8 and A5 Cards
(1) Install the A5 card [1-115] with 4 spacers [1-100] and 4 screws [1-
120].
(2) Connect the four coax contacts of the coax cable assemblies [1-175]
from the J1 connector [1-185] to the A5CN6 connector on the A5 card
[1-115] as follows:
FROM J1 CONNECTOR TO COAX CONTACT POSITION OF A5CN6
Middle Plug 1 To J1-1
Middle plug 2 To J1-2
Middle plug 3 To J1-3
Middle plug 4 To J1-4
(3) Connect the printed flexible cable [1-170] to the A5CN20 connector
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COMPONENT MAINTENANCE MANUAL Video Modulator Unit (VMU)(88)
