Service manual

CD-BA250H/CD-BA2600H
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1 VDD VDD Input (+) POWER SUPPLY.
2 P37 -20 dB ATT Output -20 dB ATTENUATOR.
3 P36 NO USE Output GND
4 P35 T_BIAS 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 MICROCOMPUTER RESET.
8 P31 DRF Input CD RF LEVEL DETECTION.
9 P30 WRQ Input CD DSP WRITE REQUEST.
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 SPAN Input TUNER SPAN CHANGE.
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 ANI7 O/C SW Input CD OPEN/CLOSE SWITCH.
DISC NO SW Input CD DISC NUMBER SWITCH.
27 ANI6 TUNER SM Input TUNER SIGNAL METER INPUT.
28 ANI5 SPEANA2 Input SPEANA DATA INPUT 16 kHz.
29 ANI4 SPEANA1 Input SPEANA DATA INPUT 1 kHz.
30 ANI3 SPEANA0 Input SPEANA DATA INPUT 63 kHz.
31-33 ANI2-ANI0 KEY 2-KEY 0 Input KEY INPUT.
34 AVDD AVDD Input ANALOG VDD.
35 AVREF AVREF Input ANALOG REF VOLTAGE.
36 INTP3 P_IN Input POWER FAILURE DETECT.
37 P02 JOG 1 — GND
38 P01 JOG 0 — 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 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_CONT Output AC RELAY CONTROL.
48 P126 SP_RLY Output SPEAKER OUTPUT RELAY CONTROL.
49 P125 SPK_DET Input SPEAKER OUTPUT DETECTION.
50 P124 T 1 RUN Input TAPE 1 RUN PULSE INPUT.
51 P123 T 2 RUN Input TAPE 2 RUN PULSE INPUT.
52 P122 CD CLAMP SW Input CD CHANGER CLAMP SWITCH.
IC701 RH-iX0401AWZZ: System Microcomputer (IX0401AW) (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