Replacement Of Switching Regulator - Sony CCU-TX7 Service Manual

(2) Removal of Cover
B 3x5
Bottom cover
B 3x5
3-2
Top cover
B 3x5
B 3x5

3-2-2. Replacement of Switching Regulator

[For the Serial No. 10001 through 11000 (UC)]
[For the Serial No. 40001 through 41000 (CE)]
1. Remove the top and bottom covers. (Refer to "3-2-1.
Removal of Cabinet".)
2. Remove four screws (K3x6) and disconnect CN1 on the
IO-140 board and CN10, CN19 and CN20 on the MB-
693 board. Remove the rear panel.
Connector (CN10)
Connector (CN1)
IO-140 board
K 3x6
Rearpanel
K 3x6
3. Remove six screws (B4x5) and switching regulator.
B 4x5
B 4x5
B 4x5
Switching regulator
4. When installing a new switching regulator, reverse the
above procedures.
MB-693 board
Connector (CN19)
Connector (CN20)
CCU-TX7(E)/V1