Kenwood MDX-F1 Service Manual

MDX-F1
6
CIRCUIT DESCRIPTION
ACTIVE
Port # Port Name I/O Descriptions
HL
31 FL DATA O Output port for FL driver
32 NC O open
33 FL CLK O Clock output port for FL driver
34 CD DOOR SW2 I CD DOOR OPEN sensor switch ON
35 K DATA O Data transmission port to MD(UART)
36 MD DATA I Data input port from MD(UART)
37 DSCK O MD IC clock
38 CD DATA O CD DSP data output port
39 DSTB O MD STB output port
40 SDA(EPROM) - open
41 SCL(EPROM) - open
42 MD RST O Reset signal port for MD RESET NORMAL
43 PDOWN O MD POWER ON OFF
44 MD ST O MD ON/CD SYNC
45 SEARCH O MD SEARCH output port
46 LOAD SW I MD LOADING sensor switch input port OFF ON
47 CD DOOR SW1 I CD DOOR sensor switch port OFF ON
48 RDS DATA - GND
49 MD NOT - GND
50 F1/MICRO - GND
51~56 NC - open
57~59 DSW0~DSW2 - GND
60 DSW3 I Destinations selector J TYPE M TYPE
61 VOL CLK O System IC
62 VCC(B.U.) - Power supply port (+5V)
63 A120/70 O Playback EQ selector
64 AVSS - GND
65 A/B-2 O Cassette deck operation mode selector
66 A/B-1 O Cassette deck operation mode selector
67 BT/2 O Cassette deck operation mode selector
68 REC/PLAY O Cassette deck rec/play mode selector REC PLAY
69 BEAT CANCEL O Beat cancel control port ON OFF
70 BIAS O Bias control port ON OFF
71 CPM O Cassette deck motor control port ON OFF
72 SOL O Cassette deck solenoid control port ON OFF
73 PLAY SW I Cassette deck play switch control port OFF ON
74 CrO2 SW I CrO2 tape detection CrO2 NORMAL
75 PACK SW I Cassette half switch control port OFF ON
76 REC F I Cassette deck forward rec switch control port OFF ON
77 REC R I Cassette deck revise rec switch control port OFF ON
78 VOL DATA O System IC data port
79 A MUTE O Audio mute control port OFF ON
80 STBY O STANDBY control port
81 NC O open
82 POWER O MAIN POWER control port OFF ON
83 FL RST O Reset signal output port for display NORMAL RESET
84 FL CE O Chip enable signal output port for display
85 ENC1 I Rotary encoder input1 port
86 ENC2 I Rotary encoder input2 port
87 LEDR O LED(STANDBY,RED) control port ON OFF
88 LEDG O LED(TIMER,GRN) control port ON OFF
89 PHOTO I Cassette deck turning detection
90,91 KEY2,KEY1 I Key a/d converter input port
92 NC O open
93 ADP3 I Protection signal I/o port 3(ON: less0.5V)
94 ADP1 I Protection signal I/o port 1(ON: less0.5V)
95 ADP2 I Protection signal I/o port 2(ON: less0.5V)
96 AVSS - GND(A/D)
97 CE I BACK UP detection port
98 VREF - A/D converter standard voltage (+5V)
99 VCC(B.U.) - A/D converter power supply(+5V)
100 CD POWER O CD DSP power supply control ON OFF

Kenwood MDX-F1 Specifications

Amplifier Section

rated output power during STEREO operation	4 W + 4 W
speaker unit	80 mm, cone type

Tuner Section

FM tuning frequency range	87.5 MHz ~ 108 MHz
MW (AM) tuning frequency range	531 kHz ~ 1, 602 kHz

General Specifications

power consumption	38 W
standby power consumption	0.3 W
dimensions (W x H x D)	464 mm x 182 mm x 243 mm
weight (net)	5.4 kg