Service manual

HT-X1
8 – 3
IC701 RH-IX0058SJZZ: System microcomputer (IX0058SJ)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No. Terminal Name Input/Output Function
1, 2* N.C. — N.C.
3~5* PROG1~PROG3 — —
6 IRQ_UP Input IRQ input.
7 HP_DETECT Input HP_Detect.
8 HP_MUTE Input/Output HP_Mute.
9 OPTICAL_ON Input/Output Optical On/Off Control.
10 VIDEO_MUTE Input/Output VIDEO_Mute.
11 RESET Input Reset.
12 XT1 Input X tal.
13 XT2 Input/Output X tal.
14 VSS1 Input Power supply. (negative)
15 CF1 Input CF1.
16 CF2 Output CF2.
17 VDD1 Input Power supply. (positive)
18 KEY1 Input/Output Key 1.
19 KEY2 Input/Output Key 2.
20 POWER_KEY Input/Output POWER_KEY.
21* RDS_VSM — Not used.
22 RDS_DATA Input/Output RDS data in.
23 SIGNAL_LVL Input/Output SIGNAL_LVL.
24* PATCH Input/Output PATCH.
25 MODEL Input/Output MODEL.
26 SYS_STOP Input/Output System stop chick out.
27 DVD_STB Input/Output DVD Storobe.
28* RDS_SLK — Not used.
29 IRQ_FRT Input IRQ_FRT
30~39 1G~10G Output VFD Segment.
40~45 P1~P6 Output VFD Segment.
46 VDD3 Input +B
47~50 P7~P10 Output VFD Segment.
51 GND — GND
52~71 P11~P30 Output VFD Segment.
72 VDD4 Input
73 SD
74 MM+ Output Changer motor +.
75 MM- Output Changer motor -.
76 FAN_PRO Input/Output Fan protect.
77 JOG_UP Input Volume up.
78 JOG_DOWN Input Volume down.
79 FM_ST Input FM Stero signal. (Tuner)
80 4094_ST
81 P_CON Power control.
82 FUNC_TUNER
83 LED LED driver.
84* N.C. — Not used.
85 CE CE signal.
86 DI Data in signal.
87 CLK Clock signal.
88 PROTECT Input PROTECT
89 VSS — GND
90 VDD Input +B
91 TUNER_DO Tuner data out.
92~94 SW1~SW3 Input DVD Mecha detect.
95 DVD_DI Output Data in.
96 DVD_DO Input Data out.
97 DVD_CLK Input DVD CLK.
98 DVD_BUSY Output DVD Busy.
99 CLID_OUT Output DVD Clid out.
100* N.C. — Not used.