Sharp CD-PC1881V, Service Manual

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CD-PC1881V
ICV1 RH-iX0313AWZZ: MPEG Controller (IX0313AW)
1 P50 VOCAL CANCEL Output Vocal cancel
2 P51 K_C_DATA Output Key control IC data
3 P52 K_C_CLK Output Key control IC clock
4 P53 K_C_STRB Output Key control IC strobe
5 P54 KEY CONT. Output Key control
6 P55 CD-SOL Output CD changer solenoid control
7,8 P56, P57 NO USE Output Goint 10 kohm to GND
9 V
SS0
VSS0 — Ground voltage
10 V
DD0
VDD0 — VDD
11 P30 CD-LD M+ Output CD changer motor control
12 P31 CD-LD M- Output CD changer motor control
13 P32 MO_SPEED Output CD changer motor speed control
14 P33 NO USE Output Goint 10 kohm to GND
15 P34 PWR_MPEG Output MPEG power supply control
16,17 P35, P36 NO USE Output Goint 10 kohm to GND
18 P20 MDI Input Comunicate to system
µ
con DI
19 P21 MDO Output Comunicate to system
µ
com DO
20 P22 MCK Input Comunicate to system
µ
com CLK
21 P23 NO USE Output Joint 10 kohm to GND
22 P24 MBUSY Output Comunicate to ststem
µ
com MBUSY
23 P25/ASCK0 NO USE Output Goint 10 kohm to GND
24 V
DD1
VDD1 — VDD
25 A
VSS
AVSS — Ground
26-33 P17-P10 NO USE Output Goint 10 kohm to GND
34 A
VREF
AVREF — Conect to VDD
35 A
VDD
AVDD — Conect to VDD
36 RESET RESET Input Common use DSP_RESET
37 XT2 XT2 — Open
38 XT1 XT1 — Conect to VDD
39 IC IC — Conect to ground
40 X2 X2 Output Main clock
41 X1 X1 Input Main clock
42 V
SS1
VSS1 — Ground voltage
43 INTP0 INT Output Interrupt requset
44 INTP1 SBUSY Input Comunicate to system
µ
com SBUSY
45,46 P02, P03 NO USE Output Goint 10 kohm to GND
47-50 P70-P73 NO USE Output Goint 10 kohm to GND
51 P74 MPEG RESET Output MPEG decoder reset
52 BUZ HCS Output Chip select
53 P64/RD HRD Output Reas strobe
54 WR HWR Output Write strobe
55 WAIT HDAK Input Bus cycle acknowledge
56 ASTB HA Output Adress strobe
57-64 AD0-AD7 HD0-HD7 Input/Output Host parallel intertface
Pin No. Port Name Terminal Name Input/Output Function