Technics SL-6 - Page 7

m
CHECKING
METHOD
OF
THE
UNIT
1. How to use the repair table (Fig. 23)
( Remove the bottom board. ;
@) Remove the operation circuit P.C.B. and connect the P.C.B.
ground terminal to the chassis (Stator frame).
@) Put the set on the repair table.
® Fit the turntable platter and put on the turntable mat.
©) Put on the record and check the circuits from under the set.
Operation circuit
P.C.B.
Repair table
Fig. 23
Operation circuit
P.C.B. Hold the switch with tape
2. How to raise the set (Fig. 24)
Note: Turntable platter is not fixed on the center spindle.
Take care so that the turntable platter will not come
loose. Also, take care allow the set to fall down.
@ Remove the bottom board.
@ Completely open the upper cabinet.
@) Hold the cabinet switch with tape.
@ Fit the turntable platter.
©) Raise the set and check the circuits.
Drive circuit
P.C.B.
Fig. 24
3.
How
to
turn
over
the
set
(Fig.
25)
pave
circuit
Note: This purpose is to check the voltage of each
circuit during stop of the turntable. Operation circuit
(@
Remove
the
turntable
platter
and
turn
over
the
set.
es
@) Remove the bottom board.
@ Turn the power switch ‘‘on’’ and check the voltage.
Note: Do not push other switches.
[If the unit is operated under no-load condition
(with turntable removed) for a long period of time,
the drive !C will be damaged.]