- do a check for the correct identification of the SEAT ELECTRONIC BOX (100MKxx) (SEB) in the seat rows XX and YY.
(1) If the position of the SEB (100MKxx) in seat row XX is correctly identified:
- Make sure that the SEB (100MKxx) in front of the seat row XX is connected to the SEB (100MKxx) in the seat row XX on the left side of the cabin.
(a) If that is true:
- do a check and repair as necessary the wiring between the SEB (100MKxx) in front of the seat row XX and the SEB (100MKxx) in the seat row XX on the left side of the cabin. (Ref. ASM 23-33/03):
- the SEB (100MKxx) connector P1/9 and the SEB (100MKxx) connector P2/9.
- 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).
1_ If the test gives a different maintenance message 23-33-54/BUS
XXYYL:
- continue with para. 4.B.(2).
2 If the fault continues:
_
- replace the SEAT ELECTRONIC BOX (100MKxx) in the seat row XX on the left side of the cabin (Ref. AMM TASK 23-33-46-000-001) and (Ref. AMM TASK 23-33-46-400-001).
a If the BITE test (part of installation procedure) gives a
_ different maintenance message 23-33-54/BUS XXYYL:
- continue with para. 4.B.(2).
3 If the fault continues:
_
- replace the SEAT ELECTRONIC BOX (100MKxx) in the seat row in front of the seat row XX on the left side of the cabin (Ref. AMM TASK 23-33-46-000-001) and (Ref. AMM TASK 23-33-46-400-001).
a If the BITE test (part of installation procedure) gives a
_ different maintenance message 23-33-54/BUS XXYYL:
- continue with para. 4.B.(2).
(b) If a WALL DISCONNECT BOX (50MKx) (WDB) is connected directly 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 left side of the cabin and:
1 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).
a If the test gives a different maintenance message
_ 23-33-54/BUS XXYYL:
- continue with para. 4.B.(2).
2 If the fault coninues 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 TERMINATORS(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 test gives a different maintenance message
_ 23-33-54/BUS XXYYL:
- continue with para. 4.B.(2).
3 If the fault continues:
_
- do a check and repair as necessary the wiring between the SEB (100MKxx) in the seat row XX and the connected WDB (50MKx) on the left side of the cabin (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).
a If the test gives a different maintenance message
_ 23-33-54/BUS XXYYL:
- 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 203
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本文链接地址：A320 Trouble Shooting Manual 排故手册 COMMUNICATIONS 通讯1(110)
