Sony SRX-T420 Installation Manual page 25

When attaching the LKRI-005 to INPUT B slot
6. Insert the LKRI-005 board into INPUT B slot, and
connect it securely.
7. Attach the panel cover (IF) using the twelve screws.
n
Attach the blank panel to empty slot.
SRX-T420
LKRI-005
Panel cover (IF) 420
PSW4 x 10
Fig. 1-7h
INPUT B
1-19