9720 VCO 15
010321
( ) "W"
J11-T (s1)
( ) "F"
J15-T (s1)
( ) "V"
J12-T (s1)
( ) "S"
J16-T (s1)
( ) "AB"
J13-T (s1)
( ) "D"
J17-T (s1)
( ) "L"
J14-T (s1)
Now it's time to use the #4 hardware and "L" brackets to attach the
front panel to the circuit board. Before beginning, take a good look
at the "L" Brackets and note that one of the holes is threaded and
the other is not.
( ) Attach the "L" brackets to the circuit board using two
4-40 X 1/4" Machine Screws through the board from the
solder side and then through the
unthreaded
holes in
the "L" brackets. Secure each with a #4 nut. Some
adjustment will be required when the panel is attached,
so do not fully tighten the screws.
( ) Bend the LED over so that it engages the hole provided
for it in the front panel as shown in fig 2. Attach the circuit
board to the front panel by passing 4-40 X 1/4" Machine
Screws through the panel from the front and into the
threaded
hole in the "L" brackets. When satisfied with
the alignment of panel, LED and circuit board, fully
tighten the hardware.
Finish panel assembly by connecting the remaining wires from
the circuit board to the jacks and controls on the front panel.
Solder as indicated. (See Fig 4)
FROM
TO
FROM
TO
( ) "B"
J7-T (s1)
( ) "C"
R203-1 (s3)
( ) "I"
R203-2 (s1)
( ) "K"
R201-3 (s2)
( ) "M"
R200-3 (s2)
( ) "N"
S1-1 (s1)
( ) "AA"
R206-2 (s1)
( ) "AD"
R202-3 (s1)
See Fig 5 for an illustration of the rest of the wiring:
( ) "R"
R204-2 (s1)
( ) "H"
J2-T (s1)
( ) "A"
R206-3 (s2)
( ) "U"
J3-T (s1)
( ) "AC"
S2-2 (s1)
( ) "E"
J4-T (s1)
( ) "AE"
R201-1 (s2)
( ) "P"
J5-T (s1)
( ) "J"
R205-1 (s1)
( ) "O"
J6-T (s1)
( ) "Y"
R205-3 (s2)
( ) "AF"
J9-T (s2)
( ) "T"
J10-T (s1)
( ) "X"
J5-X (s1)
( ) "Z"
J1-T (s2)
POWER CABLE AND CONNECTOR
Summary of Contents for 9720
Page 27: ...9720 VCO 27 010321...
