Technics SL-HD550 User Manual

IC790
TA7291S
MOTOR DRIVE
123456789
IC201
C2BBFD000248
SYSTEM CONTROL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
313233343536373839404142 222324252627282930
VCC
VREF
AVSS
SYNC
SUBQ
SQCK
BLKCK
B REQ
BCS
B CLK
DATA O
DATA I
CW CCW
CNVSS
SERVORST
NC
RESET
XIN
X OUT
V
SS
CLOSE SW
KEY1 KEY2
H:CR2
NC
OPEN SW
NC NC NC
RESTSW
NC
NC
STATUS
MLD
MCLK
MDATA
TEST
LED GRN
NC NC
LED ORG
2
1
3
4
5
6
2
1
3
4
5
6
M
C790
10V82
CP790
LOADING
MOTOR
S790
(OPEN DET.)
S791
(CLOSE DET.)
LOADING MOTOR CIRCUIT
B
SCHEMATIC DIAGRAM - 3
OPERATION CIRCUIT
D
R201
680
IO
G
X201
(6MHz)
632 4 5
1
D801
SML79420C
()
W801
R806
1.2K
R805
1.5K
S809
(RANDOM)
S808
(REPEAT)
S807
(EDIT)
S806
(/)
S805
()
S804
()
S803
(/ )
S802
()
S801
( OPEN/ CLOSE)
R800
4.7K
R801
3.3K
R802
2.2K
R803
1.5K
R804
1.2K
632 4 5
1
CLKJ ABDFE N
C204
0.1
CN403
R472
33
R471
33
R474
33
R473
33
R240
1K
R241
1K
R242
10K
R239
10K
C240
470P
C241
470P
B
A
C
D
Q408,409
DTA143XUT106
LED DRIVE
Q408
Q409
C203
0.1
D201
MA111TX
C202
50V3.3
R202
100K
Q201
DTC114YUA106
RESET
A
B
C
D
OMIGH
R230
10K
R229
4.7K
R236
4.7K
R237
100
R238
4.7K
R243
100
R244
4.7K
CN401
C409
0.01
R248 4.7K R247 4.7KR226 100
R227
100
MAIN CIRCUIT
C
RJ504
0
:POSITIVE VOLTAGE LINE
3.3V
7.9V
5.2V
3.3V
3.3V 0V
0V
3.3V
0V
3.3V 3.3V
0V 0V
3.3V 3.3V 3.3V 3.3V
0V3.3V
3.3V
2.1V
3.3V 3.3V
0V
1.3V
1.3V 1.3V
0.4V
0.8V
5.1V
5.1V 3.3V 1.4V 3.3V
1.5V
(3V)
(3.1V)
(0V)
(3.3V)
(0.2V)
(3V)
(3.3V)
1.8V
P
- P
F=6MHz
STOP/ PLAY
3.3V
0V
5.1V 7.9V 0.7V 7.9V 7.9V 0.7V 7.9V 5.1V
3.3V
0V (3.3V)
3.2V
(0V)
3.3V (0V)
3.3V
0V
(3.2V)

Technics SL-HD550 Specifications

General

Brand	Technics
Model	SL-HD550
Category	CD Player
Language	English