Sony BKDS-PA3291, Руководство по обслуживанию

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2-3(E)
BVS-A3232
2-4. Switching Regulator Replacement
MRW-161
4. Remove the four screws, then remove the switching
regulator and the +15 V power sheet.
5. Remove the five connectors (CP1, CP2, CP51, CP52,
CP53) on the switching regulator.
6. Replace and attach the switching regulator in the
reverse order of steps 1 to 5.
FAW15-1R7
4. Remove the three screws and disconnect the two
connectors (CN3, CN10) on the PS-453 board.
n
To remove the PS-453 board, also remove the five connec-
tors (CN4, CN5, CN6, CN8, CN9).
5. Remove the three screws, then remove the PS frame
(A) and the –15 V power sheet.
6. Remove the four screws and disengage the eight
harnesses.
7. Replace and attach the switching regulator in the
reverse order steps 1 to 6.
+15 V power sheet
CP53
CP52
CP51
CP1
CP2
Switching regulator
PTTWH
3
X
6
CN3
CN10
CN5
CN9
CN6 CN4
CN8
PS-453 board
PTTWH 3
X
6
PTTWH
3
X
6
BRN WHT BLU BLK
–15 V power sheet
PS frame (A)
Switching regulator
PSW 3
X
6
PSW 3
X
6