Service manual

CD-DD4500
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IC701 RH-iX0422AWZZ: System Microcomputer (IX0422AW) (2/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Port Name Terminal NamePin No. Input/Output
Function
51* P107/FIP47 DIST_OUT (2) Output Distination output/switch output.
52 P106/FIP46 KARAOKE LATCH Output KARAOKE IC data latch. (When not used. Connect to 0 V)
53 P105/FIP45 6-ch VOL LATCH Output 6 ch VOL IC data latch.
54 P104/FIP44 NO USE Input Open
55 P103/FIP43 SPRLY (FRONT) Output (Front) Speaker output relay control.
56 P102/FIP42 SMUTE Output System mute control.
57 P101/FIP41 TIMER LED Output Timer LED control.
58 P100/FIP40 AC RLY_CONT Output AC relay control.
59 P97/FIP39 DIST_OUT Output Distination output/switch output.
60
P96/FIP38 SPN Input Tuner span change.
P96/FIP38 P25 Output FL display segment driver.
61-63 P95/FIP37-P93/FIP35 P24-P22 Output FL display segment driver.
64
P92/FIP34 DIST3 Input Distination input.
P92/FIP34 P21 Output FL display segment driver.
65
P91/FIP33 DIST2 Input Distination input.
P91/FIP33 P20 Output FL display segment driver.
66
P90/FIP32 DIST1 Input Distination input.
P90/FIP32 P19 Output FL display segment driver.
67
P87/FIP31 DIST0 Input Distination input.
P87/FIP31 P18 Output FL display segment driver.
68-74 P86/FIP31-P80/FIP24 P17-P11 Output FL display segment driver.
75-78 P77/FIP23-P74/FIP20 P10-P7 Output FL display segment driver.
79 VDD2 VDD2 Input (+) Power supply.
80 VLOAD VLOAD Input FL driver (-) power supp. -30 V
81-84 P73/FIP19-P70/FIP16 P6-P3 Output FL display segment driver.
85,86 FIP15,FIP14 P2,P1 Output FL display segment driver.
87-100 FIP13-FIP0 G14-G1 Output FL display segment driver.