Sharp XL-HP500 Service Manual - Page 44

IC701 RH-iX0574AWZZ: System Microcomputer IX0574AW To Serial No.211X 1/2, IC701 RH-iX0578AWZZ:

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XL-HP500 IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (To Serial No.211XXXXX) (1/2) IC701 RH-iX0578AWZZ: System Microcomputer (IX0578AW) (From Serial No.212XXXXX) (1/2) Pin No. Port Name Terminal Name Input/Output Function 1 VDD 2 P37 3* P36 4 P35 5 P34 6 P33 7 P32 8 P31 9 P30 10 RESET VDD -20dBATT NO USE T-BIAS SP_RELAY T-REC/PLAY CD RESOUT AC_RELAY NO USE RESET Input Output Output Output Output Output Output Output Input Input (+) 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. 11 X2 12 X1 13 VPP/IC 14* XT2 15 P04 16 VDD 17 P27 X2 X1 VPP/IC XT2 CD_DRF VDD CD CLK Output Input - - Input Input Output Main clock. Main clock. GND Open CD DRF level detection. (+) Power supply. CD DSP clock. 18 P26 19 P25 20 P24 21 P23 22 P22 23 P21 24 P20 25 AVSS CD DI CD DO CD CE CE CLK DI DO AVSS Output Input Output Output Output Output Input - CD DSP command. CD DSP CODE Q out. CD DSP CE output. CE output. Clock output. Data output. Data input. Analog ground. 26 27 28 29 30 31-33 34 35 36 P17 ANI6 ANI5 ANI4 ANI3 ANI2-ANI0 AVDD AVREF INTP3 NO USE NO USE FPA/FPB SW PROTECT NO USE KEY 2-KEY 0 AVDD AVREF P_IN Input Input Input Input Input Input Input - Input 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. 37 P02 38 INTP1 39 INTP0 40 VSS 41 P74 42 P73 43 P72 CD_WRQ SP DET REMOCON VSS SMUTE T1-RUN T_SOL_A Input Input Input - Output Input Output CD write read request. Speaker abnormal detect. Remocon input. Ground voltage. System mute control. TAPE 1 RUN PULSE input. Tape solenoid control. 44 P71 45 P70 46 VDD 47 P127 48 P126 49 P125 50* P124 51* P123 T_MOTOR TIMER LED VDD JOG 1 JOG 2 NO USE NO USE NO USE Output Output Input Input Input Input Output Output Tape motor control. Timer LED control. (+) Power supply. Volume jog input 1. Volume jog input 2. Connect to GND. Open Open 52 P122 53 P121 NO USE NO USE Output Input Open Open In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. - 44 -

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XL-HP500
– 44 –
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (To Serial No.211XXXXX) (1/2)
IC701 RH-iX0578AWZZ: System Microcomputer (IX0578AW) (From Serial No.212XXXXX) (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
NO USE
Input
Connect to GND.
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
NO USE
Input
Connect to GND.
50*
P124
NO USE
Output
Open
51*
P123
NO USE
Output
Open
52
P122
NO USE
Output
Open
53
P121
NO USE
Input
Open
Port Name
Terminal Name
Pin No.
Input/Output
Function