Read Sharp XL-DAB151PHBK (serv.man3) Service Manual online
XL-DAB151PH
4 – 7
U7 92L12000146902 : 4CH BTL Driver for CD Player with 3.3V Output Voltage (SA1469PH) / (1/2)
Figure 4-5 BLOCK DIAGRAM OF IC
Figure 4-6 PIN CONFIGURATION OF IC
28
GND
10K
13K
13K
Regulator
OUT1A
OUT1B
IN1A
IN1B
REG
REO
MUTE
GND
IN2B
IN2A
OUT2B
OUT2A
GND
GPOUT
Mute
10K
10K
50K
50K
1K
10K
13K
13K
1K
10K
1K
16.5K
1K
OUT4A
OUT4B
IN4A
IN4B
V
REF
V
CC
V
CC
IN
3
B
IN
3
A
OUT
3
B
OUT
3
A
OPIN(+)
OPIN(-)
Level Shift
and Buffer
and Buffer
27
26
25
24
23
22
21
20
19
18
17
16
15
Themal
Shutdown
Level Shift
and Buffer
and Buffer
Level Shift
and Buffer
and Buffer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Level Shift
and Buffer
and Buffer
GND
OUT1A
OUT1B
1N1A
GND
IN2B
IN2A
OUT2B
OUT2A
GND
OPOUT
1N1B
REG
REO
MUTE
OUT4A
OUT4B
IN4A
IN4B
VREF
V
CC
OUT
3
A
OUT
3
B
IN
3
A
IN
3
B
OPIN(+)
OPIN(-)
V
CC
SA1469PH
28 27 26 25 24 23 22
21 20 19 18 17 16 15
8
9
10 11 12 13 14
1
2
3
4
5
6
7
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