Kenwood KDC-MP832U User manual

© 2006-4 PRINTED IN JAPAN
B53-0397-00 (N)589
CD RECEIVER
KDC-MP832U
SERVICE MANUAL
This product uses Lead Free solder.
AM SW
KDC-MP832U
FF
FM SCRL
PTY/C.S.
VOL
AUD
SET UP
A.RDM
RDM
SCANS.MODE REP
MENUAUTO AME
F.SEL M.RDM
USB
ATT
ANG
SIZE AA BATTERY
(Not supplied)
Panel assy
(A64-3737-02)
MODEL TDF PANEL No. TDF NAME
KDC-MP832U Y33-2530-61 TDF-MP68D
TDF PANEL INFORMATION CD MECHANISM EXTENSIONCORD (30P) : E39-0812-05
DC cord
(E30-6414-05) Escutcheon (B07-3126-01)
Mounting hardware assy
(J21-9716-03)
Remote controller assy
(A70-2067-15)
Lever
(D10-4589-04) x2
Carrying case
(W01-1661-05) Compact disc
(W01-1673-05)
Screw set
(N99-1758-05) Tapping screw (N09-6280-05)
RC-527

KDC-MP832U
2
BLOCK DIAGRAM
PANEL
AM+B
F/E
A1
CD
LX BUS
SW5V
A8V A8V
AGC
E-VOL
A3.3V REF+B
SVR REF PRE
MUTE
IC
POWER
9V
PRE OUT
PRE OUT
PRE OUT
AUX IN
IC750
Q402
IC300
DRIVER
MUTE
IC102
RDS
DECODER
IC400
IC100
MEMO
INSTALLER
ROM CORR
SW5V
BU5V
A8V
D5V
SERVO
Q450
DSI
BU5V
UP
BACK
RESET
IC BU5V
u-COM
OPEL DISP
P-CON
ANT-CON
EXT AMP
ACC DET
DIMMER
SURGE DET
B.U DET
Q20BU5V
SW20V
Q50
Q41ILL+B
SW14V
A8V
Q12
Q607
DC/DC
(5VPRE)
+B
MOTOR
Q30
PANEL
5V
FDC
SERVO
Q31
USB 5V
DRIVER
MOTOR
IC450
Q981
SW5V
Q22
MECHA
PANEL
CLOSE DET
P CON
ANT CON
EXT.AMP.CON
DIMMER
ACC
BACK UP
LINE MUTE
PANEL OPEN/
SP OUT(FR)
SP OUT(RL)
SP OUT(FL)
SP OUT(RR)
REMO
D3.3V
IC11
SW5V
Q7
D2.5V
IC10
FL+BFL3.3V
FL
Q6
SW3.3V
PANEL
u-COM
IC4
RESET SW
IC1
FLASH ROM
ENCODER
ROTARY
IC2
IC6
KEY ILL
BU5V
SW5V
SERVO
D5V
A8V
9V
ILL+B
ED1
ILL+B
(SW)
(FRONT)
(REAR)
WIRED
KEY
Q10
TEL MUTE
COMP
DRIVE
3.3V
IC5
KEY MATRIX
SPE ANA
IC3
CORR
ROM
REMO.
CON.
(FST)
USB I/F
IC104
Q10 Q13
IC800
CONNECTOR
5P
USB5V USB
IC80
HISIDE
SW
CD 5V
DC/DC (FL) SW FL+B
USB5V
BU5V
OP AMP
SW MUTE
RESET ICLEVEL SHIFTLEVEL SHIFT
E2PROM
FST
FM/AM
AUX
CH
CD
SPE
MUTE C
MUTE 0,1,2
WININ OFFSET
MUTE C
STBY
for
MPX
RDS
RST
ANA
SPE
ANA
DCERR
PRE MUTE
MUTE 0,1,2
MUTE A
MUTE A
USB I/F
to CD MECHA
●Complete view

KDC-MP832U
3
Cable
H/U
30Pin FFCDXM-6810W/DXM-6820W CD_Mechanism
High-side
Switch
USB_ 5V
USB
GND
USB_D+
USB_D-
5V
SW-Reg.
(
VBUS 5V
)
SYS-
uCOM
P-ON
/MSTOP
PowerON SW
Over Current
Mecha-
uCOM
CS3.3V
(
CS1.8V)
DECODER USB
DRIVER
USB_D+
USB_D-
/INT
/RESET
P-ON
USB CONNECTOR
BU3.3V
/CS RST
BU5.0V
BU14V
D5.0V
EVOLDAC LFP
L-ch
R-ch
BU5.0V
CN1
IC19
IC1
IC20,21
IC15 IC25
IC18 IC13
LD
F
E
TR COIL
PD
C
BA
FO COIL
IC2
SDRAM
64Mbit
Motor
Driver
µ-COM
3.3V Reg.
DAC
3.3 5V
BU5V
3.3 5V
(SW3.3V)
C16
SER2(3/4Wire)
CD I/F
Memory
Controller
SW3.3V(712)
CS3.3V
(CS7410)
CS1.8V
(CS7410)
BU3.3V
SW A5V
A8V
BU5V
A8V
D5V(D4V)
S7.5
S7.5V
BU5
SW3.3V(712)
CS3.3V &
CS1.8V
BU3.3V
RF AMP
SERVO DSP
SW A5V
CS3.3V
LPF
3.3 5V
(BU5V)
I2S
SW
SP MOTOR
Loading & sled
MOTOR
LOE/LIM-
8EJE-SW
12EJE-SW
LOS-SW
delay
D5V(D4V)
Flash
Memory
8Mbit
CS3.3V
(
CS7410
)
1M*8bit
1M*4B*16bit
DRAM
4,8,16bit
256K
ROM
8bit
02MB
To
MAIN
BOARD
Audio_Rch
Audio_Lch
SW A8V
PCM_DATA
PCM_BCLK
PCM_LRCK
PCM_XCK
DAC_RST
DAC_MUTE
EMPH
Infinit
y
0 Det.
BREQ SREQ
CLK
B_DAT
S_DAT
DATA_MUT
DA_EMPH
INTQ
SO
A0
SI
STB
SCK
/RESET
DATA
LRCK
BCLK
PLL
CS3.3V
(
CS7410
)
POWER
CS POW
11.500MHz
16.893M
POW ON
CS POWER
/AUDIO MUTE
/MRESET
/MSTOP
I2CDATA
/I2CCLK
USB_D+
USB_D-
/OC
/PO
USB
DRIVER
NAND
GATE
CS3.3V
(
CS7410
)
3STATE
BUFFER
CS3.3V
(
CS7410
)
CS3.3V
(
CS7410
)
/CSRST
CS EMPH
6.00MHz
/CSRST
/CS , A20
/USB_CS
/NV_CS
CKO
()
DPU1
IC4
IC14
IC5
IC21
IC20
IC19
3.3V Reg.
1.8V Reg.
3.3V Reg.
5V Reg.
IC1
IC15
ACD DECODER
MP3/WMA/AAC
DECODER
IC28
IC16 IC17
IC26
IC25
IC18
IC13
Q7
Q6
Q3
CN1
●AC Drive + USB Mechanism unit
●CD player unit (X32-583)
BLOCK DIAGRAM

KDC-MP832U
4
●ELECTRIC UNIT (X34-4100-11)
Ref. No. Application / Function Operation / Condition / Compatibility
IC10 Audio8V Ref Power Supply Output 1.27V.
IC80 Switching Regulator Power supply forVFD. (57V)
IC100 Reset IC “L” when detection voltage goes below 3.6V or less.
IC102 System µ-com Controls FM/AM tuner, the changer, CD/USB mechanism, Panel,
volume and tone.
IC103 Muting logic IC Controls logic for muting.
IC104 EEPROM For installer’s memory
IC200 Power Control IC Power control switch
IC300 Electrical Volume & Source Selector Controls the source, volume, and tone.
IC400 RDS decoder
Panel mecha control
IC450 Panel mecha motor driver
IC451 G-Analyzer Analog gravity sensor.
IC600 ±9V AVR Power supply for 5V Pre Out OP-AMP.
IC601~603 5V Pre-out AMP Output buffer and gain control.
IC750 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.
IC800 Audio 3.3V Ref Supply Audio 3.3V Ref supply to electrical volume and all low pass filters.
SVR6.8V Ref Supply SVR6.8V Ref supply to power IC.
Power Supply for VFD USB5V & Mecha digital.
IC901 Switching Regulator Controller CH1:VFD & USB5V (5.1V)
CH2: Mecha digital (DXM-68∗∗: 5.1V )
IC951 Power control IC USB power control switches with over current detection and protection.
Q10,11 Audio8V AVR When Q11’2pin goes Hi, A8V AVR outputs 8.0V.
Q12 SW14V When Q12’2pin goes Hi, SW14V outputs 14V.
Q20,21 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V.
Q22,23 SW5V When Q23’base goes Hi, SW5V outputs +5V.
Q30,32 Moter+B AVR When Q9’base goes Hi, Moter+B AVR outputs 7.5V.
(Panel Mecha)
Q31,33 Servo+B AVR When Q33’base goes Hi, Servo+B AVR outputs 8.5V.
Q34 SW14V When Q12’2pin goes Hi, SW14V outputs 14V.
Q40,42,45 Panel5V AVR When Q42’ 2pin goes Hi, Panel5V AVR outputs 5V.
Q41,43,44 Illumination AVR When Q43’2pin goes Hi, Ill AVR outputs 10.5V.
Q50~52 SW16V (Surge Protection) When Q51’2pin goes Hi,SW16V outputs (BU-0.6)V.
Q91 Panel5V Discharge SW When Q91’base goes Hi, Panel 5V is discharged.
Q100,101 Panel Detect SW When Q100’base goes Lo, panel is detected.
Q201 Pre-out mute driver When a base gose Lo, mute driver is turned on.
COMPONENTS DESCRIPTION
IN Panel mecha
IN1 IN2
LLWAIT
LHOPEN
HLCLOSE
HHSTOP

KDC-MP832U
5
Ref. No. Application / Function Operation / Condition / Compatibility
Q202 Acc Detect SW When Q202’base gose Hi, Acc voltage is detected.
Q204 Surge Detect SW When Q204’base goes Hi, Surge voltage is detected.
Q205 B.U Detected SW When Q35’base gose Hi, B.U voltage is detected.
Q207 Small-lamp Detect SW When Q207’base goes Hi, Small-lamp is detected.
Q208,209 Power Antenna SW When Q206’base goes Hi, power antenna switch outputs 14V.
Q210 Pre-out mute driver When a base gose Lo, mute driver is turned on.
Q402,403 AM+B SW When Q403’base gose Hi, AM+B is outputs.
DSI lights when the base is “L”.
Q450 DSI Driver DSI turns off when the base is “H”.
DSI turns on and off when panel is taken off.
Q600~602 Pre-Amp +9V AVR Q600 and 602 works as a differential amplifier, Q601 works as a driver and
+9.4V is supplied to OP Amp for Pre-out.
Q603~605 Pre-Amp -9V AVR Q603 and 605 works as a differential amplifier, Q604 works as a driver and
-9.1V is supplied to OP Amp for Pre-out.
Q606,607 AUDIO 10.5V AVR When Q606’base goes Hi,AVR outputs 10.5V.
Q608~615 Pre-out mute SW When a base gose Hi, Pre-out is set to mute.
Q800,802 REF+B AVR When Q800’base goes Hi, AVR outputs 13V.
Q801 SVR6.8V Ref Supply AGC Controller When the voltage of B.U voltage falls, a return is hung and an output is reduced.
Q901 VFD&USB5V AVR SW When base goes Hi,VFD & USB5V AVR on.
Q902 Mecha digital AVR SW When base goes Hi, Mecha digital AVR on.
∗DXM-680∗: 5V
Switching Regulator frequency control SW
Q903 (IC901)
Q981~983 SW16V (Surge Protection) When Q983’2 pin goes Hi, SW16V outputs (BU-0.6) V.
●SWITCH UNIT (X16-3540-14)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 ROM IC Graphics data included
FLASH ROM IC
IC4 PANEL µ-COM
IC5 RESET IC When panel is attached, IC5 active
IC6 REMOTE CONTROL IC Remote control receiver
IC7 BUFFER IC It is change into 3.3V from 5V
IC8 BUFFER IC It is change into 5V from 3.3V
IC9 BUFFER IC For Control ED1
IC10 2.5V REGULATOR The power supply For 2.5V
IC11 3.3V REGULATOR The power supply For 3.3V
Q1 TRIANGLE GREEN Triangle green LED is lighting when Q1’s base level goes“H”
LED SW
COMPONENTS DESCRIPTION
2pin LH
1pin
L430kHz 600kHz
H650kHz 820kHz

KDC-MP832U
6
Ref. No. Application / Function Operation / Condition / Compatibility
Q2 TRIANGLE RED Triangle red LED is lighting when Q2’s base level goes “H”
LED SW
Q3 BLUE LED SW Blue LED are lighting when Q3’s base leve goes “H”
Q4 GREEN LED SW Green LED are lighting when Q4’s base level goes “H”
Q5 RED LED SW Red LED are lighting when Q5’s base level goes “H”
Q6 SW3.3V SW SW3.3V the power supply of IC1, 3 is turned on when Q6’s base level goes “L”
Q7,8 SW5V SW SW5V the power supply of IC2, 6 is turned on when Q8’s base level goes “H”
Q9,10 FL3.3V SW FL+3.3V (VDD1) is turned on when Q9’s base level goes “H”
Q12 FL BLK SW ED1 is lighted on when Q7’s base level goes “H”
Q11,13 FL+B SW FL+B (VDD2) is turned on when Q11’s base level goes “H”
● CD PLAYER UNIT (X32-5830-00)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Mechanism µ-COM
IC2 Signal Processor
IC4 BTL Driver Spindel motor, sled (including loading & eject) motor and pick-up actuator
IC5 SW3.3V Regulator 3.3V power supply for IC2, pick-up, IC18 digital part
IC13 Audio Active Filter 2nd LPF
IC14 A5V Regulator 3.3V power supply for DAC
IC15 DSP for Compression Audio Decoder ACDrive decoder, MP3/WMA/AAC decoder
IC16 Compression Audio Codec SDRAM
IC17 Decoder Software & Unique ID Strage Flash
ROM
IC18 Audio D-A Converter (24-bit external) External 24-bit for audio
IC19 BU3.3V Regulator 3.3V power supply for µ-com
IC20 1.8V Regulator 1.8V power supply for IC15 core part
IC21 Decoder/SDRAM/Flash ROM/USB Driver Power supply for decoder, SDRAM, flash ROM and USB driver.
3.3V Regulator 3.3V power supply for IC15 port parts, IC16, IC17, IC25, IC26 and IC28.
IC25 USB Host Controller
IC26
Switching among IC15 & Flash ROM & SDRAM
For DSP for Compression Audio Decoder, Flash ROM, SDRAM and USB
& USB
IC28 Clock SW To SDRAM
Q3 Level Shift 3.3V→5V
Q6,7 Level Shift 3.3V→5V
Q8 APC (Auto Power Control)
Q9,10 Anticipation Sub-beam Delay During non-searching
Q16 Logic Inverter µ-com “ZERO” terminal
Q17 USB Hi-side SW
Q18 Logic Inverter For DACMUTE terminal
D2 Static Electricity Countermeasure For IC2 built-in reset terminal
D3 Laser Diode Protection
D9 Static Electricity Countermeasure
COMPONENTS DESCRIPTION

KDC-MP832U
7
MICROCOMPUTER’STERMINAL DESCRIPTION
●SYSTEM MICROCOMPUTER 30625MGPA87GP (X34- : IC102)
Pin No. Pin Name Module I/O Application Truth Processing/Operation/Description
value table
1VREF µCOM - A/D analog reference voltage
2AVCC µCOM -
3LX_DATA_S LX_M I Data from slave unit
4LX_DATA_M LX_M O Data to slave unit
5LX_CLK LX_M I/O LX BUS clock
6NCONot used when no WIRED_REMO Output L fixed
7LX_MUTE LX_M I MUTE request from slave unit H: Mute ON, L: Mute OFF
8AUD_SDA AUDIO O E-VOL data output terminal SPI communication
9AUD_SEL AUDIO O E-VOL control terminal SPI communication
10 AUD_SCL AUDIO O E-VOL clock output terminal SPI communication
11,12 NC O Not used Output L fixed
13 BYTE µCOM -
14 CNVSS µCOM -
15 XCIN µCOM I 32768kHz
16 XCOUT µCOM I 32768kHz
17 RESET µCOM I
18 XOUT µCOM - 12MHz
19 VSS µCOM -
20 XIN µCOM - 12MHz
21 VCC1 µCOM -
22 NMI µCOM I Not used
23 PANEL_DET EXTRA I For 1 DIN: Panel detection H: PANEL detached, L: PANEL attached
24 RDS_CLK TUNER I RDS decoder CLK input terminal
25 LX_REQ_S LX_M I Communication request from slave unit
26 PON_AM Power supply I/O AM power supply control H:When AM, Hi-z:When not AM
27 LX_REQ_M LX_M O Communication request to the slave unit
28 TUN_IFC_OUT TUNER I F/E IFC OUT input terminal H: Station found, L: Station not found
29 NC O Not used Output L fixed
30 RDS_AFS_M TUNER I/O Switching constant when noise detected rRefer to the truth value table
31 RDS_QUAL TUNER I RDS decoder QUAL input terminal
32 RDS_DATA TUNER I RDS decoder DATA input terminal
33 PWIC_BEEP PWIC O Beep output
34 TUN_SCL TUNER I/O F/E I2C clock input/output terminal
35 TUN_SDA TUNER I/O F/E I2C data input/output terminal
36 SYS_DATA toPANEL O Inter-panel communication data output Data output (MAX500kbps)
terminal
37 VCC1 µCOM -

KDC-MP832U
8
Pin No. Pin Name Module I/O Application Truth Processing/Operation/Description
value table
38 PAN_DATA toPANEL I Inter-panel communication data input Data input (MAX500kbps)
terminal
39 VSS µCOM -
40 SYS_REQ toPANEL O Communication request terminal from
system µ-com
41 PAN_REQ toPANEL I Communication request terminal from
panel
42 SDA/CD_SDA CD I/O CD mechanism I2C data input/output
terminal
42 SDA/INST_SDA EXTRA I/O E2PROM I2C data input/output terminal
43 SCL/CD_SCL CD I/O CD mechanism I2C clock output terminal
43 SCL/INST_SCL EXTRA I/O E2PROM I2C clock output terminal
H: ON, Hi-Z: Momentary power down,
44 PON_PANEL Power supply I/O Panel 5V control terminal when panel detached (1DIN), 11 min.
after ACC_OFF
45 DSI EXTRA I/O (D) SI control terminal for 1DIN
46~49 NC O Not used Output L fixed
50 PM_MOT1 P-MECHA O 1DIN panel motor control 1 wRefer to the truth value table
51 PM_MOT2 P-MECHA O 1DIN panel motor control 2 wRefer to the truth value table
52 EPM µCOM I FLASH EPM input terminal
53 PM_OPEN P-MECHA I 1DIN panel full-open detection eRefer to the truth value table
54 NC (CUR DET) O Not used Output L fixed
55 SW_FDC Power supply I/O FL tube filament power supply control ON: H
terminal OFF, Display black out:Hi-Z
56 NC(SW_USB) O Not used Output L fixed
57 P5V_DIS Power supply I/O PANEL 5V discharge control for 1DIN H: Discharge, Hi-Z: Other
Reset securing when power OFF
58 PM_CLOSE P-MECHA I Panel mechanism close detection for 1DIN eRefer to the truth value table
59 ROMCOR_DET EXTRA I E2PROM writing-in request H:Writing-in
60 PM_DET P-MECHA I Panel mechanism detection for 1DIN H:While checking function
61 SC_CON toPANEL O Inter-panel communication control POWER OFF, ACC OFF:L
(CE when FLASH)
62 NC O Not used Output L fixed
63 TUN_TYPE1 TYPE I Destination setting 1 tRefer to the truth value table
64 TUN_TYPE2 TYPE I Destination setting 2 tRefer to the truth value table
65,66 NC O Not used Output L fixed
67 CD_DISC12_SW CD I CD disc detection terminal (12cm)
68 CD_LOS_SW CD I CD loading detection terminal
69 CD_MUTE_R CD I CD MUTE (Rch) request terminal L: Rch mute request
MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-MP832U
9
Pin No. Pin Name Module I/O Application Truth Processing/Operation/Description
value table
70 CD_MUTE_L CD I CD MUTE (Lch) request terminal L:Lch mute request
71 CD_MRST CD O CD mechanism µ-com RST terminal H: Normal, L: RESET
72 CD_MSTOP CD O CD mechanism µ-com stop terminal H: Mechanism µ-com in operation
L: Mechanism µ-com stop
73 NC CD O (other than J) Output L fixed when other than J
74 CD_LOE_LIM_SW CD I CD detection terminal (chucking SW) H: Loading completed, L: No disc
75 CD_LOEJ CD I/O CD motor control terminal qRefer to the truth value table
76 CD_MOTOR CD O CD motor control terminal qRefer to the truth value table
77 PON_ILLUMI Power supply I/O Key illumi power supply control H: ON, Hi-Z: OFF
78 PON_CD Power supply I/O Power supply control terminal for L:When CD source
CD WMA Hi-Z:When other than CD source
79 PON Power supply O Power supply control POWER ON: H, POWER OFF: L
80 PON_FL+B Power supply O Power supply control terminal for FL POWER ON: H
tube bias POWER OFF, Display black out: L
FL tube filament power supply POWER ON: L
81 PON_FDC_USB Power supply I/O USB VBUS POWER OFF
Main power supply control terminal Display black out:Hi-Z
82 F_SEL1 EXTRA O SW-Reg frequency switching uRefer to the truth value table
83 F_SEL2 EXTRA O SW-Reg frequency switching uRefer to the truth value table
84 DIAG Power supply I/O PCON over-current monitoring
85 VCC2 µCOM -
86 NC O Not used Fixed to L-output for models without
EXT_AMP
87 VSS µCOM -
88~91 TYPE_1~4 TYPE I Destination switching yRefer to the truth value table
92 NC O Not used Output L fixed
93 NC O Not used with DISP OUT Output L fixed
94 NC O Not used with DISP OUT Output L fixed
95 NC O Not used with DISP OUT Output L fixed
96 NC O Not used Output L fixed
97 P_CON Power supply O External amplifier control terminal POWER ON: H, POWER OFF: L,
ALL OFF: L
98 NC O Not used Output L fixed
99 ANT_CONT EXTRA O Power antenna control TUNER ON: H
100 ILLUMI_DET EXTRA I Dimmer illumi detection L: ON, H:OFF
101 BU_DET EXTRA I Momentary power down detection L: BU found, H:BU not found, momentary
power down
102 ACC_DET EXTRA I ACC power supply detection L: ACC ON, H:ACC OFF
MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-MP832U
10
Pin No. Pin Name Module I/O Application Truth Processing/Operation/Description
value table
103 (PWIC_SVR) PWIC O SVR discharging circuit H: For 5 seconds at POWER OFF
momentary power down, L:Thereafter
104 PWIC_MUTE PWIC O Power ICMUTE terminal L:While STANDBY source, momentary
power down, L:While TEL MUTE
105 PWIC_STBY PWIC O Power IC standby control POWER ON:H, POWER OFF: L
106 LX_CON LX_M O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
L:When M MUTE R is L (while CD)
107 MUTE_PRE_R AUDIO O PRE_OUT MUTE Rch L: At momentary power down, Fixed to
H: Only when 2 zone or NAVI interruption
L:When M MUTE L is L (while CD)
108 MUTE_PRE_L AUDIO O PRE_OUT MUTE Lch L: At momentary power down, Fixed to
H: Only when 2 zone or NAVI interruption
109 MUTE_0 AUDIO O E-VOL FRONT MUTE terminal ON: L, OFF: H
110 MUTE_1 AUDIO O E-VOL REAR MUTE terminal ON: L, OFF: H
111 MUTE_2 AUDIO O E-VOL SW MUTE terminal ON: L, OFF: H
112 MUTE_A AUDIO O E-VOL SPEANA MUTE terminal ON: L, OFF: H
L: ON, H: OFF
113 MUTE_PRE_SW AUDIO O PRE_OUT MUTE SUB L: At momentary power down
Use in conjunction when using MUTE2
(anti- MUTE2 shock noise measure)
114 MUTE_AFS AUDIO O AFS MUTE terminal IC2’s MUTE C is used
L: ON, H: OFF, Decay time constant 0.5ms
115~119 NC O Not used Output L fixed
TEL MUTE: 1V or lower (J: NAVI MUTE)
120 LINE_MUTE EXTRA I Line mute detection NAVI MUTE: 2.5V or higher
(all destinations)
121 NC O Not used Output L fixed
122 PWIC_DC_DET PWIC I DC offset detection terminal
123 LX_RST LX_M O Hardware-reset to slave unit H: Reset, L: Normally
124 G_Y_OUT EXTRA I
125 G_X_OUT EXTRA I
126 RDS_NOISE TUNER I FM noise detection terminal
127 AVSS µCOM -
128 TUN_SMETER TUNER I S meter input
MICROCOMPUTER’STERMINAL DESCRIPTION