CD-BA1500 (serv.man9). Part 4 - Voltage table, Troubleshooting tables, IC tables - Sharp Audio Service Manual (repair manual). Page 10

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CD-BA1500H
– 50 –
IC701  RH-iX0329AWZZ: System Microcomputer (IX0329AW) (1/2)
Port Name
Terminal Name
Pin No.
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
1
VDD
VDD
(+) POWER SUPPLY
2*
P37
GND
3*
P36
S-BUSY
Output
COMMIJNTCATE TO MPEG U–COM
4
P35
T–BTAS
Output
TAPE RECORD BIAS
5
P34
T–T1/T2
Output
TAPE T1/T2 CHANGE
6
P33
REC/PLAY
Output
TAPE REC/PLAY CHANGE
7
P32
RES OUT
Output
CD DSP RESET & MPEG UCOM RESET
8
P31
DRF
Input
CD RF LEVEL DETECTION
9
P30
WRQ
Input
CD DSP WRITE REQUSET
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 INT
Input
CD DSP INTERRUPT
16
VDD
VDD
(+) POWER SUPPLY
17
P27
CD CLK
Output
CD DSP CLOCK/MPEG UCOM CLOCK
18
P26
CD ID
Outout
CD DSP COMMAND/MPEG UCOM COMMA
19
P25
CD DO
Input
CD DSP CODE Q OUT/MPEG UCOM DATA INPUT
20
P24
CD CE
Output
CD DSP CE OUTPUT
21
P23
CE
Output
CE OUTPUT
22
P22
CLK
Output
CLOCK OUTPUT
23
P21
DT
Output
DATA OUTPUT
24
P20
DO
Output
DATA INPUT
25
AVss
AVSS
ANALOG GROUND
26
ANI7
TUN SM
Input
TUNER SIGNAL METER INPUT
P17
M–BUSY
Input
COMMUNJCATE TO MPEGU COM M_BUSY
27
ANI6
NO USE
Input
GND
28
ANI5
SPEANA 2
Input
SPEANA DATA INPUT 16 KHz
29
ANI4
SPEANA 1
Input
SPEANA DATA INPUT 1 KHz
30
ANI3
SPEANA 0
Input
SPEANA DATA INPUT 63 KHz
31-33
ANI2-ANI0
KEY2-KEY0
Input
KEY INPUT
34
AVDD
AVDD
ANALOG VDD
35
AVREF
AVref
ANALOG REF VOLTAGE
36
INTP3
SYS STOP
Input
SYSTEM STOP INPUT
37
P02
SP_RLY
Output
SPEAKER OUTPUT RELAY CONTROL
38
INTP1
NO USE
Input
GND
39
INTP0
REMOCON
Input
REMOCON INPUT
40
Vss
VSS
GROUND VOLTAGE
41
P74
SMUTE
Output
SYSTEM MUTE CONTROL
42
P73
T_SOL_B
Output
TAPE2 SOLENOID CONTROL
43
P72
T_SOL_A
Output
TAPE1 SOLENOID CONTROL
44
P71
T_MOTOR
Output
TAPE MOTOR CONTROL
45
P70
TIMER LED
Output
TIMER LED CONTROL
46
VDD
VDD
(+) POWER SUPPLY
47
P127
AC RLY_CONT
Output
AC RELAY CONTROL
48*
P126
SPRLY
Output
SPEAKER OUTPUT RELY CONTROL
49
P125
SP_DET
Input
SPEAKER OUTPUT DETDCTION
50
P124
T1 RUN
Input
TAPE1 RUN PULSE INPUT
51
P123
T2 RUN
Input
TAPE2 RUN PULSE INPUT
52
P122
CD CLAMP
Intput
CD CHANGER CLAMP SWITCH
53
P121
PLAY SW_A
Input
PLAY SWITCH FOR T1
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