Kenwood KRC-666, Service Manual

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KRC-666/G/R
6
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Name Module I/O Description Processing Operation
47 PLL CLK TUNER I/O Tuner I2C SCL
48 NC O
49 NC O
50 NC O
51 PANEL 5V to PANEL I/O Panel 5V ON/OFF Attached the panel, ACC ON :L (Refer to "Truth table 5")
52 NC O
53 NC O
54 VOL A to PANEL I Rotary encorder input Refer to timing chart
55 VOL B to PANEL I Rotary encorder input Refer to timing chart
56 DSI to PANEL O Eject key illumination, guide illumination, DSI control Light on :L, Light off :H
57 NC O
58 FILP-DET to PANEL I 14seg retractable detection
59 L CE to PANEL O LCD driver CE
60 NC O
61 TYPE0 EXTRA I Destination setting Refer to "Trush table 4"
62 TYPE1 EXTRA I Destination setting Refer to "Trush table 4"
63 TYPE2 EXTRA I Destination setting Refer to "Trush table 4"
64 NC O
65 ST TYPE0 EXTRA I for OEM Refer to "Trush table 4"
66 ST TYPE1 EXTRA I for OEM Refer to "Trush table 4"
67 NC O
68 NC O
69 NC O
70 MODE1 TAPE I Cassette mechanism mode detection Refer to "Trush table 1"
71 MODE2 TAPE I Cassette mechanism mode detection Refer to "Trush table 1"
72 MODE3 TAPE I Cassette mechanism mode detection Refer to "Trush table 1"
73 MOTOR TAPE O Cassette mechanism main motor Motor active :H, Motor stop :L
74 SUB+ TAPE O Cassette mechanism sub motor Refer to "Trush table 2"
75 SUB- TAPE O Cassette mechanism sub motor Refer to "Trush table 2"
76 R QUAL TUNER I RDS quality
76 NC O When with no RDS, output L fixed
77 R DATA TUNER I RDS data
77 NC O When with no RDS, output L fixed
78 LX-MUTE LX I Mute request from CH H:MUTE ON L:MUTE OFF
79 LX-CON LX O Control output to CH ON:H OFF:L
80 LX-REQM LX O Request output to CH Request detection :L
81 LX-RST LX O Reset for CH Usually, L after system RST returned, after more than 400msec H, and L
82 MUTE AUDIO O Mute
83 AFS TUNER O Noise detection time constant switching terminal FM seek during AF search :L, during receiving :H
84 IC2 SDA AUDIO I/O SDA for EVOL
85 IC2 SCL AUDIO I/O SCL for EVOL
86 P-MUTE AUDIO O Power IC Mute output terminal When power off :L all off :L tel mute :L
87 P-STBY AUDIO O Power IC standby output terminal When power IC on :H off :L
88 SVR AUDIO O Power IC servo control terminal momentary power down :H
89 ACC-DET Power supply I ACC detection ACC detection :L with no ACC :H
90 PCON-DET EXTRA I PCON output detection PCON detection :L
91 PANT-DET EXTRA I PANT output detection
PANT detection :L
with no PANT :output L fixed
92 MS MODE TAPE O Tape between music detection switching
While tape play :H
While tape FF/REW, mode except tape :L
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