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SL-Q303
Part Name & Description
Checking procedure
1. Solder the condenser to the negative
©
side of C203,
and connect the CR oscillator to it.
Or, connect the oscillator to the positive ® side of C203.
Part No.
Part Name & Description
CAPACITORS
:
CR Oscillator
ERD25TJ223
1/4W,
—-22kQ,
(See Fig. 18)
ERD25FJ472
:
AW,
4.7kQ,
ECEB1HS471
Electrolytic,
50V,
470pF
2. Checking the output of the oscillator on the oscilloscope,
ERD25FJ470
5
aw,
479,
ECEA25Z4R7
Electrolytic,
25V
4.7 uF
'
ERD25TJ154
;
1/4W,
150k,
ECKD1H223ZF
—_|Ceramic,
50V,
0.022uF,
+ 13%
adjust so that the waveform becomes as shown below.
ERD25TJ223
;
1/4W,
—-:22kQ,
ECKD1H102KB
'| Ceramic,
50V,
0.001NF,
+ 10%
eras, eee EEL
ERD25FJ102
:
1/4w,
1kQ,
ECQM1H104KZ_
Polyester,
SOV,
O.1uF,
+ 10%
20ms.
ERD25FJ332
:
1/4W, — 3.3kQ,
ECQM1H104KZ_
|Polyester,
— 50V,
O.1uF,
+ 10%
ERD25FJ221
:
1/4w,
2202,
ECEA1CS330
Electrolytic,
16V,
33 uF
VP-P 20mV
ERD25FJ471
:
1/4wW,
4702,
ECEA1AS470
Electrolytic,
10V,
47yF
50Hz
To Ground
ERD25TJ124
1/4W,
120kQ,
CECI
Naz
Ceramic,
25V,
our,
+ 38%
.
ECEA1CS330
Electrolytic,
16V,
33uF
;
(1201 Terminal (8) )
ERD25FJ272
,
TAN,
2.7K,
ECEASOZ1
Electrolytic, 50V.
Tur
3. Measure the waves at terminals (3) , @ , @® of 1C201.
ERD25TJ223
:
1/4W,
= 22k,
ECEA50Z1
Electrolytic,
SOV,
1 uF
/
ERD25TJ473
:
1/4W,
— 47kQ,
When the output waveforms are as shown below, the
ERD26F.1472
;
AW,
4.79.
SeOuinaraee
Bak.
"waaane.
control circuit is normal.
ERD25TJ104
7
1/4W,
100kQ,
ECEA1ES470
ic,
25V,
47 uF
Was
'
ERD25FJ103
,
1/4W,
10kQ,
ECEA50Z1
ic,
50V,
Tyr
However,
because of ther stability of the CR oscillator,
ERD25TJ563
'
aw.
56k.
ECEAOJS471
ic, 6.3V.
A70UF
the waveforms
are
not the same
as those
in normal
Oscilloscope
ERD25TJ183
:
1/4W,
= 18kQ,
ECEA1AS470
10V,
47 uF
rotation
3
ERD25FJ181
:
1/4W,
1802,
C210
ECQV05224)Z
50V,
0.22uF,
.
Fig. 18
ERD25FJ221
:
1/4W,
2202,
C211
ECEAS0Z2R2
ic, 50V,
2.2uF
C212
ECQV05224JZ
:
50V,
0.22nF,
,
I
ll
I 7
ERD25TJ224
'
1/4W,
220k,
C213
ECKF1E104ZV
25V,
0.1uF,
Terminal (3)
1 About 8.0V
ERD25FJ222
:
1/4W,
2.2kQ,
C214
ECEA1ES470
Electrolytic, 25V,
47 uF
:
:
it
ERD25FJ181
,
1/4w,
=: 1802,
;
ERDSOFJ4R7
j
v/2w,
4.79,
C215
ECCD1H471K
Ceramic,
50V,
470pF,
'
'
A |ERD25FJ102
;
1/4w,
—-1kQ,
C216
ECCD1H330K
Ceramic,
50V,
33pF,
H
'
C217
ECCD1H151K
Ceramic,
50V,
150pF,
!
:
C218
ECKF1E104ZV
—_|Ceramic,
25V,
O.1uF,
;
C219, 220
ECQV05224JZ
~—«{ TF,
50V,
0.22nF,
Terminal (4)
About 5.0V
C221
ECQM1H103KZ
Polyester,
60V,
O.01nF,
a
is
C401[Other Areas] A
|ECQE2A473MZ_
|Polyester,
250VAC,
0.047uF,
bs
7
Nl caoite,
EK, xL} | A |ECQU2A473MF | Polyester, 250VAC, 0.047uF.
: ;
' :
1
t
Terminal ©
About 5.0V
Areas
* [E] is available in Switzerland and Scandinavia.
* [EK]
is available in United Kingdom.
* [XL] is available in Australia.
* [EG] is available in F.R. Germany.
* [EB] is available in Belgium.
* [EF] is available in France.
* [XA] is available in Southeast Asia, Oceania, Africa,
Middle Near East and Central South America.
* [XM] is available in Central South America.
* [EH] is available in Holland.
* [Ei] is available in Italy.
* [EC] is available in Czechoslovakia.
m REPLACEMENT PARTS LIST...Electrical Parts
Notes:
1. Part numbers are indicated on most mechanical parts.
Please
3. Bracketed
indications
in Ref.
No. columns specify the area.
use this part number for parts orders.
Parts without these indications can be used for all areas.
2. Important safety notice:
Components indentified by A make have special characteristics
important for safety. When replacing any of these components,
use only manufacturer's specified parts.
Part No.
Part Name & Description
Part No.
Part Name & Description
eas
Solenoid Ass'y, Start/Stop
SFDSAH2985
Switch, Arm (Rest) Switch
EVQQJRO2K
Switch, Start/Stop & Speed Selector
SFDSHXW0225
Switch, Voltage Adjuster
SFDSQ34N05R
Switch, Power Source
INTEGRATED CIRCUITS
1C101
AN6635
IC, Drive
1€201
AN6680
IC, Control
TRANSISTORS
Q1, 201, 202
2SD636
Transistor, Regulator & Switching
2SD638
Transistor, Regulator
2SC 1826
Transistor, Regulator
28C1328—T
Transistor, FG Amplifier
XBAS2CO16TIW
| Fuse, T0.16A
250V
XBA2CO6TRO
Fuse,
T 0.63A
250V
D1
SVDS1RBA20Z
Diode, Rectifier
D2
MA1051A
Diode, 5.1V Zener
D201
MA162A
Diode
D202
SVDRM1Z
Diode
D203, 204
SVDPR5531K
Light Emitting Diode,
Speed Indicator (Red)
D205
SVDEBR5505S
Light Emitting Diode, Strobe
Transformer, Power Source
ERD25FJ103
Carbon,
1/4W,
—-10k22,
ERD25TJ123
Carbon,
1/4W,
— 12k2,
ERD25FJ822
Carbon,
1/4W,
8.2kQ,
ERD25FJ272
Carbon,
1/4W,
— 2.7kQ,
ERX1ANJ1R2
Metal Oxide,
1W,
1.2Q,
ERD25FJ472
é
1/4W,
4.7kQ,
ERD25FJ822
1/4W,
8.2kQ,
ERD25TJ683
:
1/4W,
— 68kQ,
ERD25FJ221
'
1/4W,
= 2202,
ERD25FJ391
1/4W,
= 3902,
HALL ELEMENT
Hall Element, Turntable Position Detector
Crystal, 4,19328MHz Counter Oscillator
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