Service manual

– 17 –
SD-EX200
Figure 17 BLOCK DIAGRAM (6/6)
BIA103
LFA101
DA107 DA116
LFA100
ICA401
TJM4558CD
8
4
LFA400
ICA102
SLA5515M
SWITCHING AUDIO
POWER AMP.
ICA101
SLA5515M
SWITCHING AUDIO
POWER AMP.
PSA400
11109876 54321
12 13 14 15 16 17 18 19 20 21
123
765
11109876 54321
12 13 14 15 16 17 18 19 20 21
5
4
3
1
6
5
4
3
1
BIA104
TO PROTECT SECTION
FROM POWER SECTION
OPE AMP.
OFFSET VOLTAGE
DETECTOR
OFFSET VOLTAGE
DETECTOR
AMP_VCC
+B_AMP
GND
+B
GND
VBOOTAVBOOTB
DTADJA
OUTB VBBB
DTADJB
OUTB
SA
VCC
SB GND
VKK
VKK
OUTA
VDD INB
OUTA
VBBAVBBB
INA
VBBA
VKK
VKK
GND SB
VCC
SA
OUTB
DTADJB
VBBB OUTB
DTADJA
VBOOTB VBOOTA VDD VBBB INB
OUTA
VBBA
INA
VBBA
OUTA
L-CH_+1
L-CH_–1
R-CH_–1
R-CH_+1
DRIVER_+9V
+B
2
3
1
3
1
2
VDD
VSS
—
+
—
+