JVC QL-A2 Service Manual page 24

Quartz auto-return turntable
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R825
100K
0803
0 22
! C815
2
4
R827
100K
Monostab|
Circuit
+t
[Fe
peg
C823
220u/50V
+
C821
wm
47u/50V
0809
RDS.6EC
EBS (for England)
R833
33(1/2W)
RE34
47 (1/2W)
A
VOLT.
HOV
120V
240V)220VI
CONNECTION] 1-5, 2-6) 3-6,4-1 3-4 | 2~5|
FF
Warning !
280325
a
SRI03C
0804,
0805, D806
0807,
D808
F
NJM4558D,
MJM45580-0
2SA733.
25C945
2SC1775A
ge
Cc
B
X801, X803, X804, X805
X806, X807, X808, X813
X814, XB16, X817, X818
280571
X802
X809 X810 X811
X812
SIBO1-02
0810,
0811,
0812
D813
OLTAGE SELECTOR
DIAGRAM
110V
192473
>
K
1. Be careful not to allow metallic dust, etc. to enter
inside the unit, be cause its motor is comprised of
magnetic elements.
2. After
replacement
of the X813
transistor, apply
KE45RTV
(silicone
adhesive)
or an
equivalent
material
around
the transistor
for thermal
con-
duction.
280325
S1B01-02
SP
x
K
0810,
D811,
0812
D813
F
SR103C
A
0804, 0805, D806
0807, 0808
0801, D802, D803
Notes:
1.
1$2473
2
3
4
The voitage indicated in(__jis measured
by a tester having an internal impedance
of 33. kQ/V.
©
(7
33-1/3 rpm
©
[C_] 45 rpm
(7
When locked
X809
through
X812
should
be of the
same rank.
(There are four different rankings avail-
able on the market as follows:
2SD571
K1,K2,L1 and L2
Be sure
to use only one rank of those
transistors being replaced.)
When replacing either of these transistors
2SC1775A(F7),
X813
or
X818,
they
should be replaced together as a pair both
being of the same rank.
—— indicates positive B power supply.
~~~ indicates signal path.
When
replacing
the parts
in the dark-
ened
area 2224 and those marked with
A, be sure to use the designated parts
to ensure safety.
This is the standard circuit diagram.
The
design and contents are subject to
change without notice.
D801, 0802, 0803
QL-A2
No. 2444

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