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SRX-T420
Panel (U4) block
assembly (420)
Lock
Screw
(with
drop-safe)
Screw
(with drop-safe)
Cold mirror assembly
Cold mirror assembly
Screws (with drop-safe)
Maintenance cover
Panel (U4) block
assembly
Fig. 1-6d
3. Release the lock, then open the panel (U4) block
assembly (420).
4. Loosen the screw (with drop-safe), then rotate the cold
mirror assembly in the direction of the arrow.
5. Loosen the fi ve screws (with drop-safe), then remove
the maintenance cover.