JVC L-E22 - Page 19

Even when the start button is pressed
the tonearm does not move.
Do 5V and
+2V appear respectively at the
emitter of ©1705 and Gi06 in
the power supply ?
L-E22
YES
Does 1.2 V appear
at pin 3 of 1C101 ?
NO Between the pattern of sensor P.C. Board
and brush is contact failure. ‘
YES
Are pin 14 of NO
1C101 at ““H” and pin 13 1C101 is defective.
of 1C101 at “L” ?
H:5.0V
vee L:0V
Does a voltage NO
1C102 is defective.
appear atpin 11
of 1C102 ?
YES
Carry motor or its associated wiring
is defective. .
Cueing UP/DOWN is ineffective.
When the UP/
DOWN button is pressed, do
a “‘H’ pulse appear at pin 10 of
{C101 and become "H” at pin
11 of 10101?
1C101 is defective.
When the UP/
DOWN button is pressed,
become “‘L.” at pin 9 of IC102
and become “L" at pin 10
of 1C102 ?
1C102 is defective.
Solenoid or its associated mechanism unit
is defective.
—~15—
No. 2672
Ne