Board - Sony HDCU3500 Service Manual

2-12-4. PS-939 Board
Required tool: Nipper
Preparation
1. Remove the top cover. (Refer to
2. Remove the front panel assembly. (Refer to
3. Remove the optical multi fiber cable. (Refer to
4. Remove the DC fan. (Refer to
5. Remove the DC fan (60 square). (Refer to
6. Remove the power assembly. (Refer to
7. Remove the power top assembly. (Refer to step 1 in
Procedure
1. Disconnect the four harnesses from the connectors (CN104, CN105, CN1003 and CN2002) on the PS-939 board.
2. Cut the two binding bands using the nipper.
3. Disconnect the harness from the connectors (CN101 and CN103) on the PS-939 board.
4. Remove the screw (K3 x 6), and then remove the PS coil holder.
5. Remove the radiation sheet (45 x 45) T4.
6. Remove the seven screws (PSW3 x 6), and then remove the PS-939 board.
7. Remove the radiation sheet D.
CN105
PS-939 board
Harness
CN101
PS-939 board
Put the harness on the
insulating sheet (PS-A).
Note
When installing the PS-939 board, tighten the screws in the following sequence: (a), (b) and others.
8. Install the removed parts by reversing the steps of removal.
HDCU3500/HDCU5500
"2-2. Top Cover".)
"2-3-1. Front Panel
"2-4. Optical Multi Fiber
"2-9. DC Fan".)
"2-10. DC Fan (60
"2-12-1. Power
"2-12-2. RE-345
PS coil holder
Radiation sheet (45 x 45) T4
Harness
Harnesses
CN2002
CN104
PSW
3 x 6
(a)
CN101
Radiation
sheet D
Insulating sheet (PS-A)
Assembly".)
Cable".)
Square)".)
Assembly".)

Board".)

(b)
CN103
CN1003
Bottom case (PS)
Cut the remaining part of the
binding band by which the
harness was fixed.
Harness
Binding
band
Harness
Harness
K3 x 6
Binding band
Nipper
Binding bands
2-32