Kenwood KCAIP 500 Service Manual

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ifitiiRF/itiiPsoo KENWOOD

Kenwood Corporation
SERVICE MANUAL

© 2005-4 PRINTED IN JAPAN
853-0277-00 (N) 1708

Cord with plug
(E30-6469-15)

Cord with DIN connector
(E30-6468-05)

Adhesive double-coated tape
(J69-0521-04)

This product uses Lead Free widen.

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KCA-I P500

BLOCK DIAGRAM

iPOd INTERFACE

F/W cND
F/W GND
WA.
- DSBD.
'- _| '7 POWER (3ND TPAV
1 I I H POWER.
I A (5 1, use Dr
LXVBUS INTERFACE \ \ I TPB+
LX FIEQ M l 7 use PWFl
D GND 2 I O1 2 II ' Q7 I TPB
I-I
BU a I BU 5V lPod DET I ACCESSORY lDENTlFY
L353? 2 | '04 | FWPEF
lPod EW PEFH
A GND 6 l "ICHARGE 5w E l ACCESSORY Pwm 3V)
Lx EST 7 7 I iPod RESERVED
Rm 8 I O3 01 COMMUNICATION | USB GND
LX FIEQ S 9 EU DET INTERFACE
7 DGND
i SlGNAL WlRE GND
LX DATAS l I LXVBUS SYSTEM I , RX RESERVED
LX DATA M I I COMMUNICATION UVCOM /l I 2 TX DOCK TX
Lch 2 77777777 DOCK FIX
a
LX CLK l I C EZPROM J7 \I I 4 ACC 3 3 ACCESSORY DETEcT
77777777 ACCTD
5 RESERVED
I 2%, i_I_ 5 00 DETECT RESERVED
I I - RESERVED
- _' RESERVED
_ _ _ _ _ - - - - - - - - - AUDlOrLEFT LlNErlN L
AUDIO PAIR GND . UNEIN n
a AUDlOVRIGHT AUDlO RETURN
LlNErOLlT L
UNEOUT R

DGND

COMPONENTS DESCRIPTION

0 CONTROL CIRCUIT UNIT (X29-4410-00)

Ref. No. Application / Function Operation / Condition / Compatibility

|C1 Communication control p-com iPod commands and LX-BUS commands are inter-converted.

|C2 Resetting IC When voltage of BU 5V decreases to 3.6V or less, Lo is output.

|C3 Buffer 3.3V 7 5V level shifter buffer

|C4 +8.5V AVFl iPod re-charging DC/DC converter power supply.

Q1,2 BU 5V AVFl When BU is impressed, 5V is output. Q1 and Q2 are inverted darlington connected.
Q3 BU detection SW When momentary power down and BU are detected, base is turned to Lo and Q3 goes off.
Q4 Resetting SW When system reset is turned on, base becomes Hi and Q4 is turned on.

Q5 Changer control SW When in CH CON or CH CON2 modes, base is turned to Hi and Q5 is turned on.
06 Changer mute SW When mute request is output to H/U, base is turned to L0 and 06 is turned on.

Q7 iPod connection detection SW When an iPod is connected, base is turned to Hi and 07 is turned on.

MICROCOMPUTERS TERMINAL DESCRIPTION

0 MICROCOMPUTER 30302MCP070GP (IC1 : X29)

Active
Pin No. (H/L) Pin Name l/O Application Processing / Operation / Description
1~5 NO 0 Not used.
6 BYTE | External data bus switching input Connected to GND.
7 H CNVSS l CNVSS Connected to GND Via register.
8,9 NO 0 Not used.