Pioneer SC-99 Service Manual page 57

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5
[3-3] Remove the D AMP ASSY
(1) Disconnect the two 24P board to board extension
jig cables (GGD1871) and remove the PRIMARY
ASSY and the FRONT BRIDGE ASSY.
(Refer to the step (5) to (3) of "[3-2] Diagnosis")
(2) Remove the GND cable.
(Refer to the step (13) of "[2-2] Diagnosis")
(3) Remove the IR INTERFACE_M ASSY.
(4) Disconnect the five connectors.
(5) PuII out the two cables from the two holes.
5
4P Housing
CN7006
INTERFACE_M ASSY
Front
(6) Remove the six screws. (ABA1011)
(7) Remove the eight screws. (IBZ30P150FCC)
(8) Remove the D AMP ASSY.
Note: The screw at position ∗27 cannot be unscrewed
using a usual screwdriver because it touch a
capacitor in the REG ASSY. Unscrew and
secure it using a screwdriver with a short grip.
REG ASSY
Short grip screwdriver
Front
(9) Remove the four screws. (ABA1052)
(10) Remove the Heat Sink 85 (AL) and the nine
Heat Cond Sheets with side-A of the D AMP
ASSY facing upward.
Heat Cond Sheet
Note on assembling
∗24: When you exchange the Heat Cond Sheets,
attach the new Heat Cond Sheets into the
yellow marks of the D AMP ASSY.
5
6
5
19P FFC
4
Heat Sink 85 (AL)
6
7
4
x 4
CN4001
CN4002
CN4003
D AMP ASSY
D AMP ASSY
:
6
:
7
x 6
x 8
∗27
D AMP ASSY
9
D AMP ASSY (side-B)
9
9
SC-99
7
8
Front
CN4004
IR INTERFACE_M ASSY
3
x 9
8
9
Heat Sink 85 (AL)
8
A
B
C
D
E
F
57

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