Panasonic SL-BD20D Service Manual - Page 9

Troubleshooting

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■ TROUBLESHOOTING No sound comes out. Check the resistance at output pin plug (left and right channels). 0- a few ohms I Check if shorted circuit at pin plug or lug terminal or connector or cartridge. co (open) Check if opened circuit at pin plug or lug terminal or connector or cartridge. 500-600f2 ► Check if sequently connected to amplifier or check amplifier. Turntable does not rotate. AC power plug is connected? Belt is set over the turntable capstan? Power source circuit 1. AC 10V between FC2 terminals 0 and ®. 2. DC voltage at terminal C) of FC101 (11V). Turntable drive circuit • DC voltage at each terminal of FC101 Condition 33 rpm 45 rpm 1 11V 10.8V FC101 terminal 2 3 OV 9.4V OV 8.2V 4 7.5V 1.3V 1,.. Connect the AC power plug to an AC wall socket. Set the belt correctly. T1 (Power transformer) S1 (Power switch) D1-D4 (Rectifier) defective Motor ass'y VR101, 102 5101 8101, 102 }defective

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■
TROUBLESHOOTING
No
sound
comes
out.
Turntable
does
not
rotate.
Check
the
resistance
at
output
pin
plug
(left
and
right
channels).
0—
a
few
ohms
I
Check
if
shorted
circuit
at
pin
plug
or
lug
terminal
or
connector
or
cartridge.
co
(open)
500-600f2
►
Check
if
opened
circuit
at
pin
plug
or
lug
terminal
or
connector
or
cartridge.
Check
if
sequently
connected
to
amplifier
or
check
amplifier.
AC
power
plug
is
connected?
Belt
is
set
over
the
turntable
capstan?
1,..
Connect
the
AC
power
plug
to
an
AC
wall
socket.
Power
source
circuit
1.
AC
10V
between
FC2
terminals
0
and
®.
2.
DC
voltage
at
terminal
C)
of
FC101
(11V).
Set
the
belt
correctly.
Turntable
•
drive
circuit
DC
voltage
at
each
terminal
of
FC101
FC101
terminal
Condition
1
2
3
4
33
rpm
11V
OV
9.4V
7.5V
45
rpm
10.8V
OV
8.2V
1.3V
T1
(Power
transformer)
S1
(Power
switch)
D1
—D4
(Rectifier)
defective
Motor
ass'y
VR101,
102
5101
8101,
102
}defective