a If the test gives a different maintenance message
_ 23-33-54/BUS XXYYR:
- continue with para. 4.B.(2).
4 If the fault continues:
_
- continue with para. 4.B.(1)(c)7_.
(c) If a SEB TERMINATOR (101MKxx) is connected to the SEB (100MKxx) in the seat row XX, instead of the SEB (100MKxx) in the seat row in front of the seat row XX on the right side of the cabin:
- do a check for the functional condition and the correct installation of the SEB TERMINATOR (101MKxx) on the SEB (100MKxx) in the seat row XX (Ref. ASM 23-33/03).
- do the Test of the Passenger Entertainment (Music) MK (Ref. AMM TASK 23-33-00-740-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 201-299, 301-399, ∞∞23-33-00∞∞∞∞∞∞∞∞∞∞Page 232
May 01/05 CES 1 If the test gives a different maintenance message 23-33-54/BUS
_
XXYYR:
- continue with para. 4.B.(2).
2 If the fault continues and:
_
a If a SEB TERMINATOR (101MKxx) is connected to the SEB
_ (100MKxx) in the seat row in front of the seat row XX:
- do a check for the functional condition and the correct installation of that SEB TERMINATOR (101MKxx) (Ref. ASM 23-33/03).
- do the Test of the Passenger Entertainment (Music) MK (Ref. AMM TASK 23-33-00-740-002).
b If the test gives a different maintenance message
_ 23-33-54/BUS XXYYR:
- continue with para. 4.B.(2).
3 If the fault continues and:
_
a If another/other SEB TERMINATOR(s) (101MKxx) is/are
_ connected to a/the WDB(s) (50MKx) in line to the SEB (100MKxx) in the seat row in front of the seat row XX:
- do the check above again on that/these SEB TERMINATOR(s) (101MKxx) (Ref. ASM 23-33/03).
- do the Test of the Passenger Entertainment (Music) MK (Ref. AMM TASK 23-33-00-740-002).
b If the BITE test gives a different maintenance message
_ 23-33-54/BUS XXYYR:
- continue with para. 4.B.(2).
4 If the fault continues:
_
- do a continuity check on all SEBs (100MKxx) on the right side of the cabin from the seat row XX to the seat row next to the WDB (50MKx) that serves the SEB(s) above between:
- the SEB (100MKxx) connector J1/6 and the SEB (100MKxx) connector J2/6.
- the SEB (100MKxx) connector J1/5 and the SEB (100MKxx) connector J2/5.
- the SEB (100MKxx) connector J1/7 and the SEB (100MKxx) connector J2/7.
- the SEB (100MKxx) connector J1/8 and the SEB (100MKxx) connector J2/8.
a If there is no continuity in a SEB:
_
- replace that SEAT ELECTRONIC BOX (100MKxx) (Ref. AMM TASK 23-33-46-000-001) and (Ref. AMM TASK 23-33-46-400-001).
b If the BITE test (part of installation procedure) gives a
_ different maintenance message 23-33-54/BUS XXYYR:
- continue with para. 4.B.(2).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 051-099, 106-149, 201-299, 301-399, ∞∞23-33-00∞∞∞∞∞∞∞∞∞∞Page 233
May 01/05 CES 5 If the fault continues:
_
- do a check and repair as necessary the wiring between the checked SEBs (100MKxx) (Ref. ASM 23-33/03):
- the SEB (100MKxx) connector P1/6 and the SEB (100MKxx) connector P2/6.
- the SEB (100MKxx) connector P1/5 and the SEB (100MKxx) connector P2/5.
- the SEB (100MKxx) connector P1/7 and the SEB (100MKxx) connector P2/7.
- the SEB (100MKxx) connector P1/8 and the SEB (100MKxx) connector P2/8.
- do the Test of the Passenger Entertainment (Music) MK (Ref. AMM TASK 23-33-00-740-002).
a If the test gives a different maintenance message
_ 23-33-54/BUS XXYYR:
- continue with para. 4.B.(2).
6 If the fault continues:
_
- do a check and repair as necessary the wiring between the SEB (100MKxx) nearest to the WDB (50MKx) that serves the checked SEB(s) (100MKxx) and that WDB (50MKx) (Ref. ASM 23-33/03):
- the WDB (50MKx) connector P1/6 and the SEB (100MKxx) connector P2/6.
- the WDB (50MKx) connector P1/9 and the SEB (100MKxx) connector P2/9.
- the WDB (50MKx) connector P1/5 and the SEB (100MKxx) connector P2/5.
- the WDB (50MKx) connector P1/7 and the SEB (100MKxx) connector P2/7.
- the WDB (50MKx) connector P1/8 and the SEB (100MKxx) connector P2/8.
- do the Test of the Passenger Entertainment (Music) MK (Ref. AMM TASK 23-33-00-740-002). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯1(124)
