Service manual

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CD-CH1500
1 P60/A16 PB MUTE Output Cassette playback mute
2 P62/A18 REC Output Recording output (Cassette)
3 P61/A17 REC BIAS Output Recording bias output (Cassette)
4 P63/A19 SMK SP1 Output Span output for destination 1
5 P64/RD T-MOTOR Output Cassette operation motor output
6 P65/WR T-SOL Output Cassette solenoid output
7* P66/WAIT SMK SP2 Output Span output for destination 2
8 P67/ASTB RUN PULSE Input Pulse for tape running check
9 VDD — Input To be connected to VDD
10 P100/T15/TO5 A-FP SW Input A side foolproof switch
11 P101/T16/TO6 B-FP SW Input B side foolproof switch
12 P102/T17/TO7 CAM SW Input Cassette CAM switch
13 P103/T18/TO8 CST SW Input Cassette detection switch
14 P30/TO0 CE Output Tuner chip enable
15 P31/TO1 SIMUKE Input Destination input
16* P32/TO2 CD MUTE Output CD mute
17* P33/TI1 SPSW Input Tuner span select
18 P34/TI2 DATA Output Extension port output
19 P35/TI00 CLK Output Extension port clock
20 P36/TI01 LCK1 Output Extension port 1 latch clock
21 P37 LCK2 Output Extension port 2 latch clock
22* TEST/Vpp — Input Not used
23* P90 — Output Not used
24* P91 — Output Not used
25* P92 — Output Not used
26* P93 — Output Not used
27* P94 — Output Not used
28 P06/INTP6 POWER RLY Output POWER relay control
29* P120/RTP0 — Output Not used
30* P121/RTP1 — Output Not used
31* P122/RTP2 — Output Not used
32 P123/RTP3 TIMER LED Output LED output for timer
33 P124/RTP4 DIMMER Output LCD backlight
34 P125/RTP5 SYS-MUTE Output System mute output
35 P126/RTP6 C FUTA CL Input Panel close switch
36 P127/RTP7 C FUTA OP Input Panel open switch
37 Vdd — Input Connected to VDD
38 X2 — Output 8 MHz sera - lock
39 X1 — Input 8 MHz sera - lock
40 Vss — Input Ground potertial to be connected to VSS
41 XT2 — Output 32.768 kHz crystal
42 XT1 — Input 32.768 kHz crystal
43 RESET — Input Reset input
44 P00/INTP0 REMOCON Input Remote control signal input
45 P01/INTP1 JOG-A Input JOG A input
46 P02/INTP2/NMI JOG-B Input JOG B input
47 P03/INTP3 SYS_STOP Input Power failure detection
48 P04/INTP4 PROTECT Input Speaker abnormal detection
49 P05/INTP5 SP RLY Output Speaker relay
50 P95 POWER KWY Input POWER key input
51 Avdd — — Analog power supply
Pin No.
Input/Output
Port Name
Terminal Name
IC901 RH-iX0417AWZZ: System Microcomputer (IX0417AW) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function