Service manual
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CD-DD4500
1 AVDD AVDD Input Analog VDD.
2 ANI0 TUN-SM Input RDS VSM
3 ANI1 SPEANA 3 Input SPEANA data input. L, R 16 kHz
4 ANI2 SPEANA 2 Input SPEANA data input. L, R 63 Hz
5 ANI3 SPEANA 1 Input SPEANA data input. L, R 1 kHz
6 ANI4
O/C SW Input CD open/close switch.
DISC NO SW Input CD disc number switch.
7-9 ANI5-ANI7
KEY 2-KEY 0 Input Key input.
PLAY SW_B Input Play switch for T 2.
10 ANI8
FPA Input TAPE 2 A-SIDE full proof.
FPB Input TAPE 2 B-SIDE full proof.
11 ANI9
HEADPHONE Input Headphone switch.
MIC-IN Input MIC-IN sw.
12 P02 DRF Input CD RF level detection.
13 P03 WRQ Input CD DSP write request.
14 AVSS AVSS — Analog ground.
15 VSS1 VSS1 — Ground voltage.
16 X1 X1 Input Main clock.
17 X2 X2 Output Main clock.
18 VDD1 VDD1 Input (+) Power supply
19 Vpp/IC Vpp/IC — GND
20 P20/TI00 CD CE Output CD CE output.
21 P25/SI0/RxD0 CD DO Input CD DSP CODE Q out/MPEG microcomputer data input.
22 P25/SO0/TxD0 CD DI Output CD DSP command/MPEG microcomputer command.
23 P25/SCK0/ASCHK0 CD CLK Output CD DSP clock/MPEG microcomputer clock.
24 P67/INTP2 P_IN Input Power failure control.
25 P66/TIO51 JOG 0 Input Key jog input 0.
26 P65/INTP1 JOG 1 Input Key jog input 1.
27 P64/INTP0 REMOCON Input Remocon input.
28 P63/TIO50 CE Output CE output.
29 P62/SCK1 CLK Output Clock output.
30 P61/SO1 DI Output Data output.
31 P60/SI1 DO Input Data input.
32 P57/SCK2 DD CLK Output Dolby decorder clock.
33 P56/SO2 DD DO Output Dolby decorder data out.
34 P55/SI2 DD DI Input Dolby decorder data in.
35 P54 DD ACK Input Dolby decorder ACK.
36 P53 DD LP Output Dolby decorder latch
37 P52 DD CS Output Dolby decorder CS.
38 P51 DD LOCK Input Dolby decorder lock.
39 P50 DD STATUS Input Dolby decorder status.
40 VSS0 VSS0 — Ground voltage.
41 VDD0 VDD0 Input (+) Power supply.
42 RESET RESET Input Microcomputer reset.
43 P47 T2 RUN Input TAPE 2 RUN PULSE input.
44 P46 CD CLAMP SW Input CD CHANGER CLAMP switch.
45 P45 DIGI_SEL Output CD FUNC: L/EXP FUNC: H
46 P44 RES OUT Output CD DSP reset & MPEG microcomputer reset.
47 P43 SP DET Input Speaker output detection.
48,49 P42,P41 LCK 2,LCK 1 Output LED driver LCK. (BU2092-1)
50 P40 T1 RUN Input TAPE 1 RUN PULSE input.
IC701 RH-iX0422AWZZ: System Microcomputer (IX0422AW) (1/2)
Port Name
Terminal Name
Pin No.
Input/Output
Function