II.
PARTIAL OPERATION
D.
Only push botton stops
operate.
E. Push button stops do not
operate.
F.
16' Stop dead.
G.
8' Stop dead.
H .
4' Stop dead.
I .
IV Mixture dead .
J .
A group of nine or eight
consecutive notes not
operating on 16'-8'-or
4' Stops.
K .
One note dead on entire
keyboard. Example: All
"C" notes dead.
L.
All octaves of one note
sound above the dead note
but none below it .
M . Single note does not sound,
but all similar note sound
above and below it .
N.
Single note does not sound
on one footage. Example:
16' note dead, 8 ' - 4' OK.
0 .
Dead String Stop .
1 .
Check wire connections to and
from "M" Switch .
1 .
Check TR -1 Stage .
2.
Check TR-1
3 . Check common signal load to all
switches.
1 . Check TR -7 Stage .
2.
Check J-4 Jumper on foil of
Printed Circuit Board.
3.
Check 1 mfd (110) Capacitor.
4 . Check Lever Switch.
1 . Check TR -6 Stage .
2.
Check J-2 JumP.er.
3.
Check . 47 mfd. (97) Capacitor.
4 . Check Lever Switch .
1 . Check TR -5 Stage.
2.
Check J-1 Jumper.
3. Check . 22 mfd (88) Capacitor.
4 . Check Lever Switch .
1.
Check TR-4
2.
Check .15 mfd (8 7) Capacitor
3: Check 3 .3 K (86) Resistor
4 . Check Lever Switch .
1 . Check wire connections from
group signal take -off points
shown on Schematic No. 130708
to Filter Unit .
1 .
Check Master Oscillator.
Check note by signal tracing
method outlined.
2 . Check all solder connections
at master circuit.
3 . Check Master Transistor Stage .
1 ; Check appropriate IC divider
by signal tracing method out
lined.
2 . Check IC solder connections to
Printed Circuit Board.
1 .
Check note take -off cable from
generator to keyboard.
2 . Check keyboard Meleo pin con -
nections.
1 . Check key contact on dead note .
Wash with alcohol.
1 . Check String Stop Switch .
2 . Check TR -2 Stage .
Summary of Contents for 7300
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Page 3: ...COMBO ORGAN Com i lr z Tran 13053 ...
Page 4: ...Cable 12 lg 130577 6 lg 130578 EXPRESSION PEDAL 130558 Complete Rubber Bumper 130526 ...
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