Pioneer VSX-1020-K Service Manual page 49

5
[4] MAIN Assy
(1) Remove the cabinet by removing the 10 screws.
(2) Remove the heatsink section.
(See steps [2] (1) to (5).)
(3) Remove the chassis back and D-MAIN Assy
etc. block. (See steps [3] (1) to (8).)
(1) Remove the five screws. (BBZ30P080FTC)
(2) Remove the three screws. (BBZ30P080FTC)
(3) Remove the seven screws. (B020030171B10-IL)
(4) Reassembling the D-MAIN Assy etc. block.
(5) Reassembling the chassis back.
Tighten back five screws (BBZ30P080FTC)
that were removed by the above step (1).
(It is necessary to fit these ICs to base chassis
in order to reduce heating of them even though
testing the following style.)
See "2. Notes on Ground Points Connection".
(6) Arrange the unit as shown in the photo below.
(7) Connect the chassis back to the chassis ground.
(8) Insert any insulation sheet between base
chassis and MAIN Assy.
5
6
2
2
3
2
MAIN Assy
2P short connector jig
(GGD1672)
13P extension jig cable
(GGD1669)
8P extension jig cable
(GGD1670)
Heatsink section
VSX-1020-K
6
7
1
1
×4
3
3
3
3
MAIN Assy
7P extension jig cable
(GGD1671)
Chassis back
5
6
7
8
MAIN Assy
7
8
A
3
B
3
C
D
CP107
E
F
Insulation sheet
49
8