Sony PWS-4400 (SY) Service Manual page 105

Main Block-1
101
PSW3 x 6
No. Part No. SP Description
101 A-1981-497-A s MOUNTED CIRCUIT BOARD, SW-1628
102 A-1981-923-A s MOUNTED CIRCUIT BOARD, CP-407A
103 1-763-423-21 s FAN, D.C.
7-682-947-01 s SCREW +PSW 3X6
7-682-956-01 s SCREW +PSW 3X35
PWS-4400
PSW3 x 6
103
Refer to "Main Block-2"
102
PSW3 x 35
PSW3 x 35
6-3