Read Sharp XL-MP100H (serv.man12) Service Manual online
XL-MP100H
8 – 3
IC501 VHIBD3881FV-1: Record/Playback Amp. (BD3881FV)
No.
Terminal Name
Function
No.
Terminal Name
Function
1
PB1N
Ch1 Tape Filter Pin
15
BAS2
Ch2 Bass Filter Setting Pin
2
PB1P
Ch1 Tape Input Pin
16
OUT2
Ch2 Output Pin
3
PB2P
Ch2 Tape Filter Pin
17
BAS1
Ch1 Bass Filter Setting Pin
4
PB2N
Ch2 Selector Output Pin
18
OUT1
Ch1 Output Pin
5
PB2O
Ch2 Selector Output Pin
19
INA1
Ch1 Input Pin A
6
PB1O
Ch1 Selector Output Pin
20
INA2
Ch2 Input Pin A
7
VOLIN1
Ch1 Volume Input Pin
21
INB1
Ch1 Input Pin B
8
VOLIN2
Ch2 Volume Input Pin
22
INB2
Ch2 Input Pin B
9
GND
Ground Pin
23
INC1
Ch1 Input Pin C
10
TRE1
Ch1 Treble Filter Setting Pin
24
INC2
Ch2 Input Pin C
11
TRE2
Ch2 Treble Filter Setting Pin
25
REC2C
Ch2 REC Output Pin
12
VDD
Positive Power Supply Pin
26
REC2N
Ch2 REC Filter Pin
13
CONT
Serial Control Receiving Pin
27
REC1N
Ch1 REC Filter Pin
14
VEE
Negative Power Supply Pin
28
REC1O
Ch1 REC Output Pin
23
22
21
20
19
18
17
16
15
24
25
26
27
28
6
7
8
9
10
11
12
13
14
VEE
CONT
VDD
TRE2
TRE1
GND
VOLIN2
VOLIN1
PB1O
PB2O
20k
9.3k
20k
18dB
18dB
9.3k
PB2N
PB2P
PB1P
PB1N
REC1O REC1N REC2N REC2O INC2
INC1
INB2
INB1
INA2
INA1
OUT1
BAS1
BAS2
OUT2
5
4
3
2
1
VOLUME
VOLUME
TREBLE
BASS
Logic Control
BASS
TREBLE
Figure 4 BLOCK DIAGRAM OF IC
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