Page 163
Aug 20/2002
Matsushita Avionics Systems Corporation
COMPONENT MAINTENANCE MANUAL
PART NUMBER RD-AA5002 SERIES
23-32-47
REVISION
CODE
REVISION DESCRIPTION EFFECTIVITY
Redrawn for clarification and correction. RD-AA5002-12,
RD-AA5002-22,
RD-AA5002-23
1 Added data for 100-ohm input type A2 card. RD-AA5002-23
2 Changed C258 from 1 pF to 2 pF and R219 from 330
W to 560 W to solve PLL frequency non-locking
problem. (Refer to Service Bulletin RDAA5002-12-
23-7 for Part No. RD-AA5002-12, RDAA5002-22-23-7
for Part No. RD-AA5002-22, and RDAA5002-23-23-7
for Part No. RD-AA5002-23.)
MOD5 for
RD-AA5002-12,
MOD7 for
RD-AA5002-22 and
RD-AA5002-23
3 Changed A2 cards because A2FL209 and A2FL210
become unavailable. Changes include: A2FL209 and
A2FL210 to new ones, RF amplifiers (A2IC206,
A2IC210 and A2IC211) to new ones, and A2FL213
added. (Refer to Service Bulletin RDAA5002-22-
23-8 for Part No. RD-AA5002-22.)
MOD6 for
RD-AA5002-12,
MOD8 for
RD-AA5002-22 and
RD-AA5002-23
4 Changed A2 cards to pre-MOD6 configuration for
Part No. RD-AA5002-12 and pre-MOD8 configuration
for Part Nos. RD-AA5002-22 and RD-AA5002-23
because harmonics interference problem is found.
(Refer to Service Bulletin SB RDAA5002-23-001 for
Part Nos. RD-AA5002-12 and RD-AA5002-22, and
RDAA5002-23-23-11 for Part No. RD-AA5002-23.)
MOD8 for
RD-AA5002-12,
MOD10 for
RD-AA5002-22 and
RD-AA5002-23
5 Changed DBM201 and DBM202 (double balanced
mixers) from TDK-made to SMC-made because they
become unavailable from TDK. Change of R230 thru
R232 is also necessary if DBM201 is changed to
SMC-made.
MOD12 for
RD-AA5002-12,
MOD14 for
RD-AA5002-22 and
RD-AA5002-23,
MOD2 for
RD-AA5002-25
Revision Reference Sheet for Figure 106
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：COMPONENT MAINTENANCE MANUAL Video Modulator Unit (VMU)(50)
