Sharp MD-R3 Service Manual page 37

SYSCLK,WS,DATA0,DATA1
D5V
D7.5V
6 7 8 5 4 3 2 15
IC9904
BU2092F
18
INPUT/OUTPUT
EXPANDER
1
7
VR101
REC VOL
VINL,VINR
IC101
NJU4560D
5 3
LINE IN AMP
12
IC201
1
17
UDA1340
6
AD/DA CONVERTER
11
19
22
13 L3MODE
27
14 L3CLK
L3DATA
15
7 2
26 24 25 23 10
IC501
S81233YX
REGULATOR
1
3
A–9V
4
3
5
8
IC601
A+9V
LINE AMP
NJM4580D
FL+B
FL+B
MD 7.5V/5V
5V
BACK UP 5V
A+9V
A–9V
FL VP
CH9V
CD7.5V
5V
CD5V
Figure 37 BLOCK DIAGRAM (4/4)
– 37 –
A–9V
4
3
5
8
A+9V
A–9V 7
A+9V
14
A–9V
4
1 3
7 5
8
IC351
MIC AMP
A+9V
NJM4560D
A+9V
2
A–9V
MUTE
4
1 Q601 3
Q602
7 5
8
A+9V
IC651
HEADPHONE AMP
NJM4560D
Q653
Q505
MD+
POWER
CIRCUIT
Q506
5V SYSTEM
POWER
CIRCUIT
Q504
A+9V
POWER
CIRCUIT
Q503
A–9V
POWER
CIRCUIT
Q502
D508
Q501
D555
Q507
F553
Q508 1.0A
Q510
Q511
Q509
1 2 9 4 8 3
11 10
J101
LINE IN
IC380
MC14066B
ANALOG SWITCH
13 12 6 5
J351
Q380
MIC JACK
J101
MUTE
LINE OUT
Q451
Q452
J651
HEADPHONES
1
7
VR651
HEADPHONE VOL
T551
POWER TRANS FORMER
F551
1.0A
F552
1.0A
MD-R3
AC 120V
60Hz