Service manual

CD-DV999W/CD-DV777W
8 – 11
IC701 RH-iXA004AWZZ: System Microcomputer (IXA004AW) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No. Port Name Terminal Name Input/Output Function
1 VDD VDD — Power supply 5V.
2 P37 -20dBATT Output -20dB Attenuator.
H: Attenuator ON.
3 P36/BUZ T_BIAS Output Tape record bias control.
H: Bias circuit ON.
4 P35/PCL T_REC/PLAY Output Tape RECORD/PLAY control.
H: Play, L: Record
5 P34/TI2 T_T1/T2 Output
6 P33/TI1 RXD_CNT-IN Output H: DVD ROM WRITE MODE.
L: OTHER (SET H B4 P_ON).
7 P32/TO2 DVD_RESET Output DVD Reset.
L: Reset.
8 P31/TO1 VOL_JOG1 Input VOLUME JOG INPUT 1.
9 P30/TO0 VOL_JOG2 Input VOLUME JOG INPUT 2.
10 RESET RESET Input System Micom Reset Input.
L: Reset.
11 X2 XOUT — Main clock output 4.19MHz.
12 X1 XIN Input Main clock input 4.19MHz.
13 IC(VPP) VPP — Connect to GND
14* XT2 NO USE — Open
15 P04/XT1 DVD A MUTE Input DVD Analog mute input.
L: Mute ON.
16 VDD VDD — Power supply 5V.
17 P27/SCK0 CLK Output TUNER/Vol clock.
18 P26/SO0/SB1 DI Output TUNER/Vol command.
19 P25/SI0/SB0 DO Input Tuner data input.
20 P24/BUSY CE Output Tuner/Vol chip enable.
21 P23/STB DVD_CS Output DVD Comm. Start req.
L: Other function.
22 P22/SCK1 DVD_CLK Input DVD Clock input.
Serial 32byte.
23 P21/SO1 SYS_DATA Output DVD Data output.
L: Other function.
24 P20/SI1 DVD_DATA Input DVD Data input.
Serial 32byte.
25 AVSS AVSS — A/D Analog GND.
26 P17/ANI7 T_RUN PULS Input Tape Run Pulse input.
27 P16/ANI6 TUN_SM(SPAN) Input Tuner signal meter input (H). (Tuner span selector --W)
28 P15/ANI5 T_FP SW Input Tape Fool Proof A & B SW.
29 P14/ANI4 PROTECT Input Power abnormal detect.
30 P13/ANI3 DVD+B PRT Input DVD +B Protect detect.
31-33 P12-P10/ANI2-ANI0 KEY 2-KEY 0 Input Key input.
34 AVDD AVDD — A/D power supply 5V.
35 AVREF AVREF — A/D reference voltage 5V.
36 P03/INTP3 P_IN Input Power failure detect. (A/C Signal)
37 P02/INTP2 PHOTO Input CD Mecha motor a rotation.
38 P01/INTP1 SP_DET Input SP abnormal detect.
L: PROTECT
39 P00/INTP0/TI0 REMOCON Input Remocon decoder input.
40 VSS VSS — Ground.
41 P74 S_MUTE Output System mute control.
H: Mute ON.
42 P73 TIMER LED Output Timer LED control.
43 P72 T_SOL B Output Tape 2 solenoid control.
L: Solenoid on.
44 P71 T_MOTOR Output Tape motor control.
L: Motor on.