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14
15
16
17
Notes:
1.
$301-1, 301-2:
Start switch in ''off" position.
(not push condition).
KI
he
en
a Moves inward (S301-1)
AQ
ee ets Moves faster (S301-2)
2.
$302-1, 302-2:
Stop switch in "off'' position.
(not push condition).
DE
seen
oe en
Moves outward (S302-1)
de
ee ee
Moves faster (S302-2)
3.
$303:
Cueing switch in" ¥" position.
(not push condition).
CN303
4.
$304:
Repeat switch in "'off'' position.
(not push condition).
-x
5.
$305, 306 :
Speed select switch in ''off'' position. (not push condition).
G)
oes
$305.....33-1/3r.p.m.
$306... 45 r.p.m.
(4)
b—y
|
6. $307:
Reset switch in ''on"' position.
O
4
»
|
7. $308 :
Rest position switch in "off'' position.
:
|
8. $309:
End position switch in "off" position.
Muting
Q+)
d
,
9. $401:
Power switch in ''on"' position.
RL301
Si
iF
|
10.
$402:
Voltage adjuster switch in ''220 —240V" position.
3 -~
J
ee
.
110 — 120V <—» 220 — 240V
:
Cartridge
11.
The value in (—_Jis the standard voltage for this unit operated at 33-1/3r.p.m.,
;
O
=
which was measured by DC electronic voltmeter (high impedance) on the basis of
TP4O
R) ane 0
pur
the chassis.
Accordingly, the voltage value may sometimes include a slight error
4) | PHONO
OUT
depending on the internal impedance of the DC voltmeter (tester, etc.) used for
Q317
|
the measurement.
©),
12, cm—< +(8) voltage line.
(+) |
13.
Important safety Notice:
G) |
Components identified by A\ mark have special characteristics important for safety.
Ly
Stator circuit
When replacing any of these components, use only manufacturer's specified parts.
1636
CNIO4
* $309 (end detection switch) will be replaced by MN1400PE of which the end detec-
tion unit is built into MN1400PA (1C301) in the course of manufacture.
At the time of servicing, it is possible to replace MN1400PA with MN1400PE, but not
MN1400PE with MN1400PA.
Incidentally, MN1400PE will be supplied as repair parts.
e@ Terminal guide of transistors, 1C's, diodes and photo interrupters
Hine
AN6636
MN1400PE
H-300A
Tonearm position
dated
SVIBA6109.
14.9
detection
SVIM53200P. -
End detection
CN30{
BT30{ @)
;
:
CN307
7S
rayiDisc size
F
L Aveno $309
OT
eens 14 |sensor circuit
ok
5.0
ice
ie
Tx REST
__-9308
2SA1015
tated
SVDEBR3432S
A
ages 680
rPsh|
ae
ave anaies
4 Rest detection
5
PC30l
2
ONII6I
wo
~
a
=
SVDPR5531K
8
Q303~ 305
SVTPHIOI
0]
CN308
7
—%
ara0Kby ~
ter
LT
e Reference voltage and waveform at each IC terminal (pin)
PC5OI
D502
ae
ONIIO8
MAI50
This indicated voltage values and waveform are measured by oscilloscope at 33r.p.m.
OOP
2SD636
rotation.
|
~~ —7
PC
:
eee
Arm circuit
1C101 (AN6636)
TP45
:
1
Offset angle detection
|
aes
o
®
Ss
ol! RLSO!
@
7.8V
8
1 Cueing
0.26 V
C)
®]
0.23
u
T
)
5.4V
@
9.6V
a4
3
®
5.0V
=
D50!
a
SVDEBR3432S
®
14.9V
1324
®
0313
4313
assy
(cuen@ [ET CTS]
®
| up | 0 [1491003
| down
| 0 | of3] 08 |
A314.
*
Q313,315
Q314
rcuemsfe Tc 1s]
* The waveform was obtained with oscilloscope connected between terminals
SD638
2SD636
rat ag
D- ®, O-@.
are [14.91 013
Oo gain adjustment
0324
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