XL-HP700 (serv.man17). Function table of IC - Sharp Audio Service Manual (repair manual). Page 6

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XL-HP700H
IC701 RH-iX0548AWZZ: System Microcomputer (IX0548AW) (1/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (1/2)
1
VDD
VDD
Input
(+) Power supply.
2
P37
-20dBATT
Output
-20dB Attenuator.
3*
P36
NO USE
Output
Open
4
P35
T-BIAS
Output
Tape record bias.
5
P34
SP_RELAY
Output
Speaker relay control.
6
P33
T-REC/PLAY
Output
Tape REC/PLAY change.
7
P32
CD RESOUT
Output
CD DSP reset.
8
P31
AC_RELAY
Output
AC relay control.
9
P30
NO USE
Input
Connect to GND.
10
RESET
RESET
Input
Reset.
11
X2
X2
Output
Main clock.
12
X1
X1
Input
Main clock.
13
VPP/IC
VPP/IC
GND
14*
XT2
XT2
Open
15
P04
CD_DRF
Input
CD DRF level detection.
16
VDD
VDD
Input
(+) Power supply.
17
P27
CD CLK
Output
CD DSP clock.
18
P26
CD DI
Output
CD DSP command.
19
P25
CD DO
Input
CD DSP CODE Q out.
20
P24
CD CE
Output
CD DSP CE output.
21
P23
CE
Output
CE output.
22
P22
CLK
Output
Clock output.
23
P21
DI
Output
Data output.
24
P20
DO
Input
Data input.
25
AVSS
AVSS
Analog ground.
26
P17
NO USE
Input
Connect to GND.
27
ANI6
TUN SM
Input
Tuner signal meter input.
28
ANI5
FPA/FPB SW
Input
Tape F.P A/B SW & PLAY 2 SW.
29
ANI4
PROTECT
Input
Power abnormal detect.
30
ANI3
NO USE
Input
Connect to GND.
31-33
ANI2-ANI0
KEY 2-KEY 0
Input
Key input.
34
AVDD
AVDD
Input
Analog VDD.
35
AVREF
AVREF
Analog ref voltage.
36
INTP3
P_IN
Input
Power failure detect.
37
P02
CD_WRQ
Input
CD write read request.
38
INTP1
SP DET
Input
Speaker abnormal detect.
39
INTP0
REMOCON
Input
Remocon input.
40
VSS
VSS
Ground voltage.
41
P74
SMUTE
Output
System mute control.
42
P73
T1-RUN
Input
TAPE 1 RUN PULSE input.
43
P72
T_SOL_A
Output
Tape solenoid control.
44
P71
T_MOTOR
Output
Tape motor control.
45
P70
TIMER LED
Output
Timer LED control.
46
VDD
VDD
Input
(+) Power supply.
47
P127
JOG 1
Input
Volume jog input 1.
48
P126
JOG 2
Input
Volume jog input 2.
49
P125
MIC SW
Input
Mic switch input.
50*
P124
KARA_LATCH
Output
Karaoke latch.
51*
P123
MPEG_POWER
Output
MPEG power control.
52
P122
RDS RST
Output
RDS RAM reset.
53*
P121
RDS RDDA
Input
RDS data input.
Port Name
Terminal Name
Pin No.
Input/Output
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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