Sharp XL-HP700 Service Manual page 44

XL-HP700
IC701 RH-iX0578AWZZ: System Microcomputer (IX0578AW) (1/2)
Pin No. Port Name
1 VDD
2 P37
3* P36
4 P35
5 P34
6 P33
7 P32
8 P31
9 P30
10 RESET
11 X2
12 X1
13 VPP/IC
14* XT2
15 P04
16 VDD
17 P27
18 P26
19 P25
20 P24
21 P23
22 P22
23 P21
24 P20
25 AVSS
26 P17
27 ANI6
28 ANI5
29 ANI4
30 ANI3
31-33 ANI2-ANI0
34 AVDD
35 AVREF
36 INTP3
37 P02
38 INTP1
39 INTP0
40 VSS
41 P74
42 P73
43 P72
44 P71
45 P70
46 VDD
47 P127
48 P126
49 P125
50* P124
51* P123
52* P122
53* P121
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
VDD Input
-20dBATT Output
NO USE Output
T-BIAS Output
SP_RELAY Output
T-REC/PLAY Output
CD RESOUT Output
AC_RELAY Output
NO USE Input
RESET Input
X2 Output
X1 Input
VPP/IC —
XT2 —
CD_DRF Input
VDD Input
CD CLK Output
CD DI Output
CD DO Input
CD CE Output
CE Output
CLK Output
DI Output
DO Input
AVSS —
NO USE Input
NO USE Input
FPA/FPB SW Input
PROTECT Input
NO USE Input
KEY 2-KEY 0 Input
AVDD Input
AVREF —
P_IN Input
CD_WRQ Input
SP DET Input
REMOCON Input
VSS —
SMUTE Output
T1-RUN Input
T_SOL_A Output
T_MOTOR Output
TIMER LED Output
VDD Input
JOG 1 Input
JOG 2 Input
NO USE Input
NO USE Output
NO USE Output
NO USE Output
NO USE Input
– 44 –
Function
(+) Power supply.
-20dB Attenuator.
Open
Tape record bias.
Speaker relay control.
Tape REC/PLAY change.
CD DSP reset.
AC relay control.
Connect to GND.
Reset.
Main clock.
Main clock.
GND
Open
CD DRF level detection.
(+) Power supply.
CD DSP clock.
CD DSP command.
CD DSP CODE Q out.
CD DSP CE output.
CE output.
Clock output.
Data output.
Data input.
Analog ground.
Connect to GND.
Connect to GND.
Tape F.P A/B SW & PLAY 2 SW.
Power abnormal detect.
Connect to GND.
Key input.
Analog VDD.
Analog ref voltage.
Power failure detect.
CD write read request.
Speaker abnormal detect.
Remocon input.
Ground voltage.
System mute control.
TAPE 1 RUN PULSE input.
Tape solenoid control.
Tape motor control.
Timer LED control.
(+) Power supply.
Volume jog input 1.
Volume jog input 2.
Connect to GND.
Open
Open
Open
Open