Microcomputer's Terminal Description - Kenwood GX-608EF2 Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

SYSTEM MICROCOMPUTER : UPD784216GF526 (IC81 : X14-6212-70)
Terminal Description
Pin Function I/O
1 AM+B O AM power output
2 FM+B O FM power output
3 P_MUTE O Power IC mute
4 P_STBY O Power IC standby
5 CD_SW3 I CD mechanism SW3
6 CD_MOTOR O CD mechanism loading motor
7 CD_LO/EJ I/O CD mechanism load/eject control
8 CD_MSTOP O CD mechanism mechanism stop
9 VDD -
10-23 CD_MRST O CD mechanism mechanism reset
11 CD_MUTE_L I Mute request from CD mechanism
(Lch)
12 BEEP O Beep output
13 CD_MDET I CD mechanism detection
14 CD_DATA_P I/O CD mechanism data line
15 CD_CLK O CD mechanism clock line
16 NC -
17 CD_MUTE_R I Mute request from CD mechanism
(Rch)
18 NC -
19 NC -
20 REF_CONT O A/D reference voltage control
21 CH_REQH I Communications request from
CDCH CH
22 TEST -
23 TYPE1 I Tuner setting 1
24 TYPE2 I Tuner setting 2
25 CD_SW1 I CD mechanism SW1
26 CD_SW2 I CD mechanism SW2
27 MUTE O Audio mute
28 P_ON O Peripheral power control
29 CH_ON O CDCH control output
30 CH_RST O CDCH reset
31 CH_MUTE I CDCH mute
32 ANT_CON O Antenna control
33 DC/DC O DC/DC
34 PACK_DET I Cassette mechanism back detection
35 CS_STBY I Cassette mechanism standby
position detection
36 M_MOTOR O Cassette mechanism main motor
control
37 VDD -
38 X2 -
39 X1 -
40 VSS -
41 XT2 -
42 XT1 -
43 RESET I
44 BU_DET I BU detection
45 CD_SREQ I CD mechanism SIO
communications request
46 ACC_DET I ACC detection
47 ILLM_OUT O Illumination control
48 CH_REQC O Communications request from
CDCH CH
49 SC_REQ I Communications request from panel
Description
GX-608EF2
Pin Function I/O
50 R_CLK I RDS CLK
51 AVDD -
52 AVREFO -
53 SMALL I SMAALL input
54 PHONE I Telephone detection
55 REEL_S I Cassette mechanism reel pulse input
56 REEL_T I Cassette mechanism reel pulse input
57 NC -
58 NOISE I Noise level
59 SMETER I S-meter level
60 MODE I Cassette mechanism mechanism
position mode pulse input
61 AVSS -
62 SC_CON O Panel control output
63 SC_BUSY I Panel busy input
64 AVREF1 -
65 CH_DATAC I CDCH SIO input
66 CH_DATAH O CDCH SIO output
67 CH_CLK O CDCH SIO CLK
68 SC_DATA I CDCH SIO input
69 MC_DATA O CDCH SIO output
70 MC_CLK O CDCH SIO CLK
71 MC_REQ O Communications request to panel
72 NC -
73 PLL_CE O PLL SIO CE
74 PLL_DATA O PLL SIO output
75 PLL_CLK O PLL S10 CLK
76 DSI O Security LED control
77 TDF I Panel detach detection
78 SUB_P O Cassette mechanism submotor control
79 SUB_M O Cassette mechanism submotor control
80 KICK O Cassette mechanism kick control
81 R_DATA I RDS data
82 QUAL I RDS quality
83 PACK_IN I Cassette mechanism tape insertion
detection
84 MUSIC O Cassette mechanism blank space
detection
85 MSGV O Gain switching during tape search on
Cassette mechanism
86 F/R O Cassette mechanism F/R switching
87 METAL I Cassette mechanism metal detection
88 DOLBY O Cassette mechanism Dolby switching
89 EQ_MUTE O Cassette mechanism EQ mute
90 NC -
91 NC -
92 AFC I AFC
93 IF_MODE O K21 IF status detection
94 WIDE O K21 control wide
95 NARROW O 21 control narrow
96 FM_SD I SD
97 SDA_IC2 I/O IC2 SDA
98 SCK_IC2 O IC2 SCK
99 A_SEL O Audio select
100 VSS -
Description
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