Table of Contents
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TROUBLESHOOTING
Problem
Nothing happens when buttons
are pressed.
Display is not accurate.
EXPLANATION OF IC:
052-3382-00
M30624MGA-157GP
1.Terminal Description
pin 1 : NU
: - : Not in use.
pin 2 : TIME BASE
: IN : Time base signal input.
pin 3 : NU
: - : Not in use.
pin 4 : PLL CE
: O : The chip enable signal output to the PLL I-
C.
pin 5 : REMOCON
: IN : Remote controller signal input terminal.
pin 6 : BYTE
: IN : The data length selection(8bit/16bit).
pin 7 : CN VSS
: IN : Connect to VSS.
pin 8 : JOG CW
: IN : Jog key signal input.
pin 9 : JOG CCW
: IN : Jog key signal input.
pin 10 : RESET
: IN : Reset signal input.
pin 11 : X OUT
: O : Crystal connection.
pin 12 : VSS
: - : Negative supply voltage.
pin 13 : X IN
: IN : Crystal connection.
pin 14 : VCC
: - : Positive supply voltage.
pin 15 : NU
: - : Not in use.
pin 16 : ACC DET
: IN : ACC detection signal input.
pin 17 : BU DET
: IN : Backup detection signal input.
pin 18 : KEY INT
: IN : Key interrupting signal input.
pin 19 : 27pinConnect
: IN : Connect to pin 27.
pin 20 : VARI+B REM
: O : The power supply control signal output for
the illumination.
pin 21 : DISP+B REM
: O : The power supply control signal output for
the LCD driver.
pin 22 : BEEP
: O : Beep out.
pin 23 : NU
: - : Not in use.
pin 24 : V COLOR G
: O : PWM signal output to control the green.
pin 25 : CATS LED
: O : CATS LED drive output.
pin 26 : V COLOR R
: O : PWM signal output to control the red.
pin 27 : IE BUS RX
: IN : IE Bus serial data input.
pin 28 : IE BUS TX
: O : IE Bus serial data output.
pin 29 : NU
: - : Not in use.
pin 30 : NU
: - : Not in use.
pin 31 : NU
: - : Not in use.
pin 32 : NU
: - : Not in use.
pin 33 : LCD SO
: O : The serial data output to the LCD driver.
pin 34 : LCD SI
: IN : The serial data input from the LCD driver.
pin 35 : LCD CLK
: O : The clock pulse output to the LCD driver.
pin 36 : LCD CS
: O : Chip select signal output to LCD.
pin 37 : CTRL
: O : Power supply ON signal output.
pin 38 : NU
: - : Not in use.
pin 39 : NU
: - : Not in use.
pin 40 : MP3 SRQ
: IN : MP3 request signal input.
pin 41 : MP3 CS
: O : MP3 chip selection signal output.
pin 42 : MP3 WP
: O : MP3 wakeup signal output.
pin 43 : MP3 RESET
: O : MP3 reset signal output.
pin 44 : NU
: - : Not in use.
pin 45 : PLL SI
: IN : Serial data input from the PLL IC.
pin 46 : PLL SO
: O : Serial data output to the PLL IC.
pin 47 : PLL SCK
: O : The clock pulse output to the PLL IC.
pin 48 : PLL CE
: IN : The chip enable signal output to PLL IC.
pin 49 : NU
: - : Not in use.
pin 50 : NU
: - : Not in use.
pin 51 : Destination 1
: IN : The destination setting signal input.
pin 52 : Destination 2
: IN : The destination setting signal input.
pin 53 : Destination 3
: IN : The destination setting signal input.
pin 54 : NU
: - : Not in use.
D X Z 7 3 5 M P
Cause
The microprocessor has
malfunctioned due to noise, etc.
Main Sysytem Controller
Measure
Turn off the power, then press the
[OPEN]
button and remove the
DCP.
Press the reset button with a thin
rod.
pin 55 : NU
: - : Not in use.
pin 56 : NU
: - : Not in use.
pin 57 : NU
: - : Not in use.
pin 58 : FIL CONT 1
: IN : The cut off control signal input from the fil-
pin 59 : FIL CONT 2
: IN : The cut off control signal input from the fil-
pin 60 : VCC
: - : Positive supply voltage.
pin 61 : NU
: - : Not in use.
pin 62 : VSS
: - : Negative supply voltage.
pin 63 : NU
: - : Not in use.
pin 64 : NU
: - : Not in use.
pin 65 : ST SD
: IN : At receiving the FM station, this port detec-
pin 66 : NOISE DCHG
: O : RDS noise discharge signal output.
pin 67 : MUTE SPD UP : O : Station detection speed up command outp-
pin 68 : NU
: - : Not in use.
pin 69 : RDS MUTE
: O : RDS mute signal output.
pin 70 : RDS DATA
: IN : RDS serial data input.
pin 71 : NU
: - : Not in use.
pin 72 : NU
: - : Not in use.
pin 73 : RDS CLK
: IN : RDS clock pulse input.
pin 74 : E VOL CLK
: O : Clock pulse output to the volume IC.
pin 75 : E VOL DATA
: O : The serial data output to the volume IC.
pin 76 : NU
: - : Not in use.
pin 77 : NU
: - : Not in use.
pin 78 : AMP MUTE
: O : Muting signal output to the Audio Power A-
pin 79 : NAVI MUTE
: O : Muting signal output to suppress the noise
pin 80 : SYS MUTE
: O : System muting signal output.
pin 81 : PHONE INT
: IN : The telephone interrupt signal input.
pin 82 : ILL DET
: IN : Illumination ON signal input.
pin 83 : NU
: - : Not in use.
pin 84 : AMP REM
: O : The control signal output to internal audio
pin 85 : AUTO ANT
: O : Motor antenna control signal output.
pin 86 : 5V REM
: O : ON signal output to the 5V power supply.
pin 87 : NOISE
: IN : The noise level for RDS.
pin 88 : S METER
: IN : The input terminal of internal A/D convert-
pin 89 : KEY AD
: IN : Input terminal of A/D converter for Key jud-
pin 90 : D ZONE MUTE : O : Dual zone muting control signal output.
pin 91 : CD M S
:
O
pin 92 : KEY ILL REM
: O : Key illumination ON signal output.
pin 93 : SYS ACC
: O : ACC detect signal output.
pin 94 : A VSS
: - : Analog ground.
pin 95 : NU
: - : Not in use.
pin 96 : VREFI
: IN : The reference voltage input.
pin 97 : A VCC
: - : Positive supply voltage for the internal an-
pin 98 : MP3 SI
: IN : MP3 serial data input.
pin 99 : MP3 SO
: O : MP3 serial data output.
pin100 : MP3 SCK
: O : MP3 clock output.
-4-
Reset button
ter.
ter.
ts the stereo signal. At seeking or scanning,
this port detects the station detection signal.
ut for RDS.
mplifier.
without Navigation sound interrupting.
power amplifier.
er to monitor the radio field strength.
gment.
: CD main mode status output.
alog section.
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