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V. Rear Panel Circuit Board Assembly
Identify the rear panel circuit board, illustrated below, and the components in the
following list. All components mount on the top side of the printed circuit board.
Rear Circuit Board Components
C401-C419
1000 pF
Capacitor, 200V, qty 19
C420
0.1 µF
Capacitor, 50V, qty 1
J401
Connector
1/4 in 2-circuit PCB phone jack, qty 1
J402
Connector
3.5 mm 1-circuit PCB phone jack, qty 1
J403
Connector
3.5 mm 2-circuit PCB phone jack, qty 1
J404, J405
Connector
triple RCA phono jack (R/Wh/Ye), qty 2
J406-J409
Connector
dual RCA phono jack (R/Wh), qty 4
J410
Connector
2.5 mm DC pwr jack, PCB side entry, qty 1
P403
Header
Molex 26 pin (2x13), 0.100” male header, qty 1
Rear Panel Circuit Board
Rear Panel Circuit Board Components (left to right): J401, J403, J402, J406-J409, J404-J405, and
J410. The 26 pin (2 x 13) header is P403.
(1) Install capacitors C401-C419 (1000 pF/200V) capacitors. Note that one pin of each
capacitor solders to the ground plane, so be sure to use enough heat for the solder to flow.
Then install C420 (0.1 µF/50V), which is next to J410 on the right side of the board. Note
that the 1000pF/200V capacitors have a yellow boxy shape (marked 102), while the 0.1
µF/50V is blue and marked 104.
(2) Install the 26 pin (2x13 pins) male header at P403. Solder diagonally opposite pins
first, to make sure the header is flush against the board.
