KDC-MP922/X869
6
MICROCOMPUTER’S TERMINAL DESCRIPTION
● SYSTEM MICROCOMPUTER : 703033BGC020 (X25-964 : IC1)
Pin No.
Pin Name I/O Module Purpose / Description
Truth table
Processing Operation
1 PLL_DATA I/O Tuner Data output/input with F/E.
2 AM+B I/O
Power supply
AM+B. AM operation : H
3 (FM+B) O
Power supply
FM+B (S01 F/E only). FM operation : H,
Last FM : H (With RDS, RBDS model)
4
V_ILL PAN_E2P DATA
I/O To panel
V-ILL D/A converter (V-ILL, LCD), E2PROM data.
5
V_ILL PAN_E2P CLK
I/O To panel
V-ILL D/A converter (V-ILL, LCD), E2PROM clock.
6 EVDD -
7 EVSS -
8 AFS O Tuner Noise detection time constant switching.
FM seek, AF search :L, Receiving :H, Auto 0 : L
9 BEEP O Audio Beep output.
10 REMO I Extra
Remote control input (Panel, External display).
11 P_MUTE O Audio Power IC MUTE output. Power OFF : L, All OFF :L, TEL mute : L
12 (SVR) O Audio Power IC SVR discharge circuit control. Power OFF momentary power dropped
: H (5 second) and then L
CD CD mechanism data line.
13 IC2_SDA I/O Audio IC2, IC5 data line.
Extra ROM correction data line.
CD CD mechanism clock line.
14 IC2_CLK I/O Audio IC2, IC5 clock line.
Extra ROM correction clock line.
15 P_STBY O Audio Power IC STBY output.
Power IC ON : H, Power IC OFF :L, All OFF : H
16 P_CON I/O Extra Power control.
Power ON :H, Power OFF : Hi-Z, All OFF :Hi-Z
17 WOW_MODE2 O Audio WOW control. q
18 TEST - Connect to GND.
19 DIAG I Extra
P_CONIC over voltage, over current detection.
Usually :H, Unusually :L
20 MUTE O Audio Mute output. ON : OPEN, OFF : L
21 PRE_MUTER O Audio PREOUT (R ch) mute.
M MUTE L is L :L (CD), Momentary power
dropped : L, 2 zone, NAVI interrupt : Fixed H
22 PRE_MUTEL O Audio PREOUT (L ch) mute.
M MUTE R is L : L (CD), Momentary power
dropped : L, 2 zone, NAVI interrupt : Fixed H
23 BU_DET I Extra Momentary power dropped detection. Backup : L,
No backup, momentary power dropped : H
24 ACC_DET I Extra ACC detection. With ACC : L,Without ACC :H
25 FOCUS I/O Audio WOW focus control. Focus HI : H, Focus LOW :Hi-Z
26
EXT_AMP_CONT
O Extra External amplifier control. Refer to external amplifier control.
NC O NC (Without EXT_AMP_CONT model) Output : L
27 DIMMER I Extra Small lamp detection. ON : L, OFF : H
ANT_CON O Extra Antenna control. w
Tuner ON : H, Other source With RDS last FM
28
:H, Other source with RDBS TI ON last FM :H
TYPE2 I Extra Destination select. wK,J type (With ANT_CON model) : L,
E type (Without ANT_CON model) : H
29 P_ON I/O
Power supply
SW 14V, SW 5V control, AD reference Power ON : H, Power OFF : Hi-Z
voltage control output.
30 ILL_ON I/O
Power supply
FL, illumination output. ON : H, OFF : Hi-Z
31 RESET -
32 XT1 - Sub clock. 32.768kHz
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
