Clarion PH-2349C-A Service Manual page 3

EXPLANATION OF IC
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052-3154-02 M30622MA-E46GP
1.Terminal Description
pin 1 : REM +5V : O : REM5V Power supply ON signal out-
pin 2 : CD +8V : O : Power supply ON signal output for the
pin 3 : CD +5V : O : Power supply control signal output for
pin 4 : NU : - : Not in use.
pin 5 : TIME BASE : IN : Time base signal input.
pin 6 : BYTE : IN : Input "L" .
pin 7 : CN VSS : IN : Input "L" .
pin 8 : XC IN : IN : Sub system clock.
pin 9 : XC OUT : O : Sub system clock.
pin 10 : RESET_ : IN : Reset signal input. Negative logic.
pin 11 : X OUT : O : Crystal connection.
pin 12 : VSS : - : Negative supply voltage.
pin 13 : X IN : IN : Crystal connection. Ceramic resonator
pin 14 : VCC : - : Positive supply voltage.
pin 15 : NU : - : Not in use.
pin 16 : SBSY_ : IN : Sub Q data input from CD.
pin 17 : ACC DET_ : IN : ACC detection terminal. "L"= ACC ON.
pin 18 : B/U DET_ : IN : Backup voltage ON signal input. "L"=
pin 19 : H bus In/Rx int : IN : H bus data input, and IE-bus start bit
pin 20 : NAVI INT L_ : O : Front Left Navi audio signal ON. Nega-
pin 21 : NAVI INT R_ : O : Front Right Navi audio signal ON. Neg-
pin 22 : MUTE F/L : O : Audio mute signal output to "Front
pin 23 : MUTE F/R : O : Audio mute signal output to "Front
pin 24 : MUTE REAR : O : Audio mute signal output to "Rear".
pin 25 : MUTE AMP : O : Amplifier Mute signal output.
pin 26 : BEEP : O : Beep out(3.0kHz).
pin 27 : RX_ : IN : GA-NET RX terminal.
pin 28 : HB O/GA TX : O : H bus data output, and GA-NET TX.
pin 29 : F-ROM/T TXD : O : With testing box, TX terminal.
pin 30 : F-ROM/T RXD : IN : With testing box, RX terminal.
pin 31 : F-ROM K/T Req : IN
pin 32 : F-ROM BUSY : O : Fixed to the low level in the normal
pin 33 : E VOL DO : O : Serial data output to the volume IC.
pin 34 : NAVI MUTE_ : IN : NAVI mute signal input. Negative logic.
pin 35 : E VOL CLK : O : Clock pulse output to the E VOL IC.
pin 36 : E VOL CE : O : Chip enable signal output to the E
pin 37 : SYS ACC ON : ON : System ACC ON signal output.
pin 38 : Power IC Diag : IN : Power IC diagnosis signal input.
pin 39 : F ROM EPM_ : O : Fixed to the low level in the normal
pin 40 : TEST : IN : Test key signal input.
pin 41 : EJECT : IN : Eject key input. Negative logic.
pin 42 : POWER : IN : "L"= power ON.
pin 43 : NU : - : Not in use.
pin 44 : F ROM CE_ : O : Fixed to the low level in the normal
pin 45 : EEPROM DI : IN : Serial data input from the EEPROM.
pin 46 : EEPROM DO : O : Serial data output to the EEPROM.
pin 47 : EEPROM CLK : O : Serial clock output to EEPROM.
pin 48 : EEPROM CE : O : Chip enable signal output to the EE-
pin 49 : NU : - : Not in use.
pin 50 : FM SD : IN : FM station detect signal input.
pin 51 : AM SD : IN : AM station detect signal input.
pin 52 : FM STEREO_ : IN : FM STEREO ON signal input. Negative
Radio CD system controller
put.
Loading motor and the Photo sensors.
the CD DSP. "H"= ON.
connection.
Backup ON.
detection signal input.
tive logic.
ative logic.
Left".
Right".
:
With testing box, REQ input.
condition.
VOL IC.
condition.
condition.
PROM.
logic.
pin 53 : PLL DI
pin 54 : PLL DO
pin 55 : PLL CLK
pin 56 : PLL CE
pin 57 : AREA 1
pin 58 : AREA 2
pin 59 : Clock ON_/OFF : IN : Clock ON_/OFF initial setting input.
pin 60 : VCC
pin 61 : NU
pin 62 : VSS
pin 63 : 12_ / 24
pin 64 : A MODE
pin 65 : X MODE
pin 66 : SW+B_/Rd ON : IN : Radio on port control input. "H"= with
pin 67 : CD_/AUX
pin 68 : RADIO ON
pin 69 : CATS KEY_
pin 70 : Disc ind
pin 71 : CATS ind
pin 72 : BUC 0
pin 73 : BUC 1
pin 74 : BUC 2
pin 75 : BUC 3
pin 76 : BUC CLOCK
pin 77 : CCE
pin 78 : CD RESET
pin 79 : CHUCK
pin 80 : TR A
pin 81 : TR B
pin 82 : TR C
pin 83 : CW
pin 84 : CCW
pin 85 : Main Volume A : IN : Main volume control pulse input.
pin 86 : Main Volume B : IN : Main volume control pulse input.
pin 87 : Sub Volume B : IN : Sub volume control pulse input.
pin 88 : Sub Volume B : IN : Sub volume control pulse input.
pin 89 : LCD DI_
pin 90 : LCD DO
pin 91 : LCD CLK
pin 92 : LCD CE
pin 93 : S METER
pin 94 : A VSS
pin 95 : REMOCOM
pin 96 : Vref
pin 97 : A VCC
pin 98 : Back light ON : O : Back light On signal output.
pin 99 : NU
pin100 : AUDIO ON
Table 1. Destination setting input
U.S.A. H-BUS
EXP H-BUS
Table 2. Loading motor control output
CW ( pin 83 )
CCW ( pin 84 )
- 3 -
: IN : PLL serial data input.
: O : PLL serial data output.
: O : PLL clock pulse output
: O : Chip enable signal output to PLL.
: IN : Destination setting input. Ref. Table 1.
: IN : Destination setting input. Ref. Table 1.
: - : Positive supply voltage.
: - : Not in use.
: - : Negative supply voltage.
: IN : "H"= 24 hour mode.
: IN : Sub volume initial setting.
: IN : "L"= X MODE ON.
Radio mode, "L"= with Power mode.
: O : The converter input select signal out-
put.
: O : Radio ON signal output.
: IN : Special signal input.
: O : Disc indicator ON signal output.
: O : CATS indicator ON signal output.
: I/O : CD IC Data input / output.
: I/O : CD IC Data input / output.
: I/O : CD IC Data input / output.
: I/O : CD IC Data input / output.
: O : CD IC clock pulse output.
: O : Chip enable signal output to CD IC.
: O : Reset signal output to CD mechanism
controller. Negative logic.
: IN : Chucking switch signal input.
: IN : Photo sensor signal input from the CD
mechanism.
: IN : Photo sensor signal input from the CD
mechanism.
: IN : Photo sensor signal input from the CD
mechanism.
: O : Loading motor control output.
Ref. Table 2.
: O : Loading motor control output.
Ref. Table 2.
: IN : LCD driving data input.
: O : Serial data output to the LCD driver.
: O : Serial data clock output to LCD driver.
: O : Chip enable signal output to the LCD
driver.
: IN : Input terminal of Internal A/D converter
to detect the Voltage of FM S meter.
: - : Analog ground.
: IN : Steering wheel remote control switch
signal input.
: IN : Reference voltage terminal for the bulit-
in A/D converter.
: - : Positive supply voltage for the internal
analog section.
: - : Not in use.
: O : "H"= Audio power supply ON.
Area1(pin57) Area2(pin58)
L
H
Loading Eject Brake
H L H
L H H
PH-2349C
L
L
Stop
L
L