JVC L-F66 Service Manual page 10

Fully automatic direct drive turntable
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and
the
(A)
(1)
(2)
Start Point
Measure the voltage at TP-4 with the tonearm disengag-
ed from the tonearm rest. (With the turntable in rota-
tion)
Adjust the lead-out start point by turning the lead-out
adjusting screw shown
in Fig. 10 so that the voltage
with the stylus positioned at 65 mm away from the
platter center becomes 5% lower than the voltage with
the tonearm secured on the tonearm rest.
°
(1)
(2)
M4)
(2)
If lead-out is to be made by the end groove
(To raise the sensitivity)
Connect
the
positive
and
negative termindls
of the
tester to TP-2 and TP-3 respectively.
Decrease the indicated voltage by 0.2 V decrements by
turning
the lead-out adjusting
screw; at each decre-
ment, adjust the lead-out sensitivity until the tonearm
is lead out from the record.
If lead-out is to be performed
by the sound groove.
(To lower the sensitivity)
Connect
the negative and positive terminals of the
tester to TP-2 and TP-3 respectively.
Increase the indicated voltage by 0.2 V increments by
turning the lead-out adjusting screw; at each increment
adjust the lead-out sensitivity until the tonearm does
not lead out from the record.
(1)
(2)
(3)
No. 2526
How to handle the solderless connector (for USA
and Canada only)
In this turntable, a solderless connector is used to connect
the power cord with the primary
lead wire of the power
transformer.
When
it is unavoidable to replace this connector for re-
placement of the power transformer, or the like, positively
perform the replacement in accordance with the following
procedure to avoid dangers.
Connector part number
£03830-001
(Assembly diagram No. 64)
Tools
Do not use those (small cutting pliers, etc.) other than
regular tools.
Replacement
. Cut both the power cord and the primary lead wire at
near the edge of the connector to be replaced.
NOTE: Do not re-use the used connector.
. Peel off the coverings so that the respective conductor
tops appear by about 15mm.
NOTE: In the case of stranded wires, twist each wire.
. Adjust the tips of the power cord and the primary lead
wire with each other, then securely insert them into the
connector.
. Secure the nearly equal central part of the metal sleeve
with the second concave (2.0) of the tool for solderless
securing as shown on the right.
NOTE: Perform a complete securing.
. After solderless securing, check the following four points
shown below.
Va
Metal sleeve
Tool for solderless
securing
The clamped markes
shall locate at the nearly
—_—
han 4
2
More than 4 mm.
Fig. 11

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