Heathkit IO-4205 - Page 77

( ) Wht-Blu wire to switch SW6 lug 8 (S - 1) .
( \.2
Remove an additional 1/2" of insulation (total
3/4") from
the free end of the Wht-Viol wire .
Connect the free end of this wire to switch SW6
through lug 7 (S-2) to lug 1 (S-1).
Refer to Pictorial 4-15 (Illustration Booklet, Page 20)
for the following steps.
Connect
the free ends of the wires coming from the
horizontal circuit board to the chassis as follows:
l" J Viol wire to switch SW6 lug 4 (S-1).
( ~~ move an additional1/4" of insulation (total
17
2") from the free end of the Wht-Blk wire .
Connect this wire to switch SW6 through lug 3
(S-2)
to lug 2 (S-1).
Wht-Grn
wire to switch SW7 lug 3 (S -1).
- ) Yel
wire to switch SW7 lug 2 (S-1).
( 1.- ) Wht-Brn wire to switch SW7 lug 1 (S-1) .
!
c-r-- Wht wire to switch SW8 lug 2 (S-1).
Refer to Pictorial4-16 (Illustration Booklet, Page 21)
for the following steps.
Connect
the wires from B0#8 coming from grommet
BF to the horizontal circuit board as follows:
( ) Yel
wire to hole W (S-1).
(
r/( Gry wire to hole V (S-1).
( {
org wire to hole U (S-1).
(
~ ed wire to hole X (S-1).
( v{ Blk wire to hole H (S-1).
,Y f Wht wire to holeS (S-1).
Page 75
( ) Grn wire to hole T (S-1).
Connect
the following wires from the horizontal cir-
cuit board to the chassis as follows:
Blk
wire to solder lug K (S-4).
Brn wire through grommet BB tosocketJ6 (S-1).
This completes the wiring to the horizontal circuit
board. Check to see that all connections are soldered
and then cut off all the excess wire lengths close to the
foil. The remaining Blu and Gry wires connected to
the circuit board will be connected later.
( ) Carefully
position all the wires and harness
connected to the horizontal circuit board as
shown.
Pass the shaft of the rotary switch through the
chassis at location SW5. Secure the switch with
a 3/8" flat washer and a 3/8-32 nut.
~ ) Refer to Detail 4-16A and remove the power
supply circuit board screws from holes CL and
CH.
I
( ) Refer to the inset drawing on Pictorial4-16 and
mount the circuit board bracket at location Z on
the chassis with 6-32 x 3/8" hardware.
(
Remount the power supply circuit board with
6-32 X 3/16" screws at hex studs CG, CH, CJ, CK,
CL,
and CM. Then tighten the nuts on the hex
studs .
( )
Secure the other end of the horizontal circuit
board to the circuit board bracket with 6-32 X
3/8" hardware .
( )
Position all the wires connected between the
horizontal circuit board and the chassis as
shown. Then install a cable Ue through the two
indicated chassis holes and around these wires.
Pull the cable tie tight and cut off its excess end.