Schematic Diagram - Technics SL-HD301 Service Manual

SL-HD301 / SL-HD501
10 Schematic Diagram
SCHEMATIC DIAGRAM-1
AXOPTICAL PICKUP
M701
TRAVERSE (M)
MOTOR
——p=——— POSITIVE VOLTAGE LINE (->>:CD SIGNALLINE
CD SERVO CIRCUIT
Q701
2SB709STX
LASER POWER
DRIVE
3.4V,
RS
a
0.8V
a (RF) TP29 TP30
0.5 us. 0.2V/DIV. ° ? ?
1C701
AN8839NSBE2
SERVO AMP
(1.5V) (2.3V)
W Yo7v Y2.1v Y1.ev | ov
~ 0.6V
P-P
2ms. 0.1V/DIV.
0.2
ee
P-P
2ms, 0.1V/DIV.
OTP33 OTP32
1C703
AN8739SBE2 $8
FOCUS COIL/ am
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE B A
J |
(0.4V) ](0.2V) ] (0.1V) F(0.4V)
ov ov ov ov 7.BV 7.8V ]1.7V ¥1.7V ¥1.7V
S——— = = =O)
> a ' * oO nN a oO uu z
2 a428 3 §3 2 8 £ 5
9 a > a
BOA
in
ma ax
OO O—®) oe R749
7.8V 1.7v [3.av 7 1.7v ]1.7v 47K
(ov) j Cc
az gs
R725 715 58
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A
oz)
Qe Ras 8 3
ay
aoe58
R728
ae 3.9K
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D
[=]
Sui 38st E
RS RS
Oo oo F I S
R731
6.8K
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7.8V arte
18