Board - Sony HDCU3500 Service Manual

2-6. VIF-75 Board
Preparation
1. Remove the top cover. (Refer to
2. Remove the optical cable. (Refer to step 1 in
3. Remove the top chassis and the air distributor assembly. (Refer to
Procedure
1. Disconnect the two fine-wire coaxial cables from the connectors (CN2000 and CN2001) on the VIF-75 board.
2. Remove the two screws, and then remove the VIF-75 board in the direction of the arrow.
(a)
VIF-75 board
Front side
Note
When installing the VIF-75 board, tighten the screws in the following sequence: (a), (b).
3. Remove the four screws, then remove the heat sink retainer, four helical compression springs and heat sink
UB70H15.
4. Remove the radiation sheet (40 x 40) T1.
HDCU3500/HDCU5500
"2-2. Top Cover".)
"2-4-1. LEMO Connector
Fine-wire coaxial cable
PSW
3 x 8
(b)
Assembly".)
"2-5. Top Chassis/Air Distributor
Fine-wire coaxial cable
CN2001
CN2000
B to B connectors
B to B connectors
Assembly".)
2-14