SONY HKCU-904
Manual de Servicio

1-6. Installing the Optional Boards

Installation Procedure 1. Turn off the power and disconnect the plug from the outlet. Rear side 2. Remove the two screws from the slots and remove the blank panel or the board that is already installed. n The top slot at the rear side is used for the SDI-54A board only. So that any of the option boards cannot be installed in the top slot.

Front side 4. Remove the front panel. (Refer to Section 1-4.) 5. If any circuit board is already installed in the desired slot, remove it before hand. 6. Insert the optional front side boards into the slots, and open the levers in the direction of arrow A to lock them. n The top slot on the front is dedicated to the DPR-163 board, and the bottom slot is dedicated to the AT-141 board. So that any of the option boards cannot be installed in the top and bottom slots of the front.

Blank panel

Optional front side board

B3 x 5

B3 x 5

3. Insert the optional rear side board into the slot of the removed blank panel and fix it with the screws removed in step 2.

A Lever A Lever

B3 x 5

Optional rear side board

B3 x 5

m . Regarding the rear side, install the boards starting from the top slot, one after another. When removing the boards, start removal from the bottom slot. . Be sure to attach the supplied blank panel to the slot that is not used at the rear. 1-24 (E)
HDCU-900 IMM