Sharp CD-XP300 Service Manual - Page 49

IC701 RH-iX0496AWZZ: System Microcomputer IX0496AW 1/2

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CD-XP300/CD-XP3300 IC701 RH-iX0496AWZZ: System Microcomputer (IX0496AW) (1/2) Pin No. Port Name Terminal Name Input/Output Function 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 T_T1/T2 Output Tape T1/T2 change. 6 P33 T_REC/PLY Output Tape REC/PLAY change. 7 P32 CD_RESOUT Output CD DSP reset. 8 P31 CD WRQ Input CD write read request.. 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 D.NO SW Input CD DISC No. SW 27* ANI6 NO USE Input Connect to GND. 28 ANI5 PLAY2/FPA/FPB SW Input Tape F.P A/B SW & PLAY 2 SW. 29 ANI4 PROTECT Input Power abnormal detect. 30* ANI3 LVL_DET Input Speaker output level detect. 31-33 ANI2-ANI0 KEY 2-KEY 0 Input Key input. 34 AVDD AVDD - Analog VDD. 35 AVREF AVREF - Analog ref voltage. 36 INTP3 P_IN Input Power failure detect. 37 P02 CLAMP SW Input CD CLAMP SW. 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 T_SOL B Output Tape 2 solenoid control. 43 P72 T_SOL A Output Tape 1 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 AC_RLY Output AC relay control. 48 P126 SP_RLY Output Speaker relay control. 49 P125 JOG 1 Input Volume jog input 1. 50 P124 JOG 2 Input Volume jog input 2. 51 P123 T 2_RUN Input TAPE 2 RUN PULSE input. 52 P122 T 1_RUN Input TAPE 1 RUN PULSE input. 53* P121 MONST LED Output Monster LED. In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. - 49 -

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CD-XP300/CD-XP3300
IC701 RH-iX0496AWZZ: System Microcomputer (IX0496AW) (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
T_T1/T2
Output
Tape T1/T2 change.
6
P33
T_REC/PLY
Output
Tape REC/PLAY change.
7
P32
CD_RESOUT
Output
CD DSP reset.
8
P31
CD WRQ
Input
CD write read request..
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
D.NO SW
Input
CD DISC No. SW
27*
ANI6
NO USE
Input
Connect to GND.
28
ANI5
PLAY2/FPA/FPB SW
Input
Tape F.P A/B SW & PLAY 2 SW.
29
ANI4
PROTECT
Input
Power abnormal detect.
30*
ANI3
LVL_DET
Input
Speaker output level detect.
31-33
ANI2-ANI0
KEY 2-KEY 0
Input
Key input.
34
AVDD
AVDD
—
Analog VDD.
35
AVREF
AVREF
—
Analog ref voltage.
36
INTP3
P_IN
Input
Power failure detect.
37
P02
CLAMP SW
Input
CD CLAMP SW.
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
T_SOL B
Output
Tape 2 solenoid control.
43
P72
T_SOL A
Output
Tape 1 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
AC_RLY
Output
AC relay control.
48
P126
SP_RLY
Output
Speaker relay control.
49
P125
JOG 1
Input
Volume jog input 1.
50
P124
JOG 2
Input
Volume jog input 2.
51
P123
T 2_RUN
Input
TAPE 2 RUN PULSE input.
52
P122
T 1_RUN
Input
TAPE 1 RUN PULSE input.
53*
P121
MONST LED
Output
Monster LED.
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.