Kenwood DPX 501 Service Manual

Page 10

DPX501/501U/501UY
DPX-MP2090U

MICROCOMPUTERS TERMINAL DESCRIPTION

10

O MECHANISM MICROCOMPUTER: M30620FCPGP (X32: IC1)

Pin No. Pin Name l/O Application Processing Operation Description
1~5 NC - Not used Opened output L fixed
6 BYTE l External data bus SW input Connects to GND
L: Single chip mode
7 CNVSS l Processor mode SW
H: Microprocessor mode or flash ROM writing
8 m 0 Audio mute control L: Mute ON, H: Mute OFF
9 NC - Not used Opened output L fixed
10 FSET I Reset detection L: Reset (Flash ROM writing), H: Normal
11 XOUT 0 Main clock output Connects to resonator
12 VSS - Power supply input Connects to GND
13 XIN l Main clock input Connects to resonator
14 VCC1 - Power supply input Connects to BU3.3V
15 W l NMI interruption input Input Hi (Pull-up) fixed
16 MSTOP l STANDBY comeback interrupption L: Stop, H: Stop cancelled (Hi edge)
17 NC - Not used Opened output L fixed
18 DSP INT l DSP interruption signal input H: Interruption (Hi edge)
19~22 NC - Not used Opened output L fixed
Series resistors and E2PROM are not built when
23 E2P SCL |/O E2P |2C clock output
ROM collection is not used.
Series resistors and E2PROM are not built when
24 E2P SDA l/O E2P IZC data input and output
ROM collection is not used.
25,26 NC - Not used Opened output L fixed
27 SCL | System p-com IZC clock input
28 SDA l/O System p-com IZC data input and output
29 DSP TXD 0 Data output for DSP serial data Flash ROM writing: TXD (Pull-up)
3O DSP RXD I Data input tor DSP serial data Flash ROM writing: RXD
31 DSP CLK O Clock output for DSP serial data Flash ROM writing: SCLK(Pull-up)
32 DSP STB (BUSY) O DSP data strove signal output Flash ROM writing: BUSY
33 CS SDATA 0 Data output for decoder serial data
34 CS BDATA I Data input tor decoder serial data
35 CS CLK O Clock output for decoder serial data
36~38 NC - Not used Opened output L fixed
39 fill - Not used (Flash ROM: EPM) Opened output L fixed
40 PON D33 0 D3.3V POWER ON control H: POWER ON, L: POWER OFF
41 PON A5 0 A5.0V POWER ON control H: POWER ON, L: POWER OFF
42 PON 081 O |C15 series 3.3V POWER ON control H: POWER ON, L: POWER OFF
43 PON C82 0 |C15 series 1.8V POWER ON control H: POWER ON, L: POWER OFF
44 CE - Not used (Flash ROM: CE) Opened output L fixed
45 m 0 Driver mute L: Stop, H: Mute OFF
46,47 NC - Not used Opened output L fixed

Page 16

DPX501/501U/501UY
DPX-MP2090U

16

TEST MODE

0 FM/AM channel space switching (K,M type)
From the Power OFF condition, while pressing [1] and [5] keys
down simultaneously, press the [SRC] key and turn power ON.

0 Security

. Forced Power ON mode

Even when the security is set, by resetting while pressing [Q]
key and [4] key simultaneously, it is possible to turn the power
ON for 30 minutes only.

. Method of clearing the programmable security
code (Programmable security models: K type)

1. While - - - - is being displayed, press [>>I] key for at
least 3 seconds while pressing [AUTO] /[Tl] key.
This makes - - - - display disappear.

2. Using the remote controller, input KCAR.
Press the remote control [5] key 2 times, display ",K and
press the [>>i] key.
Press the remote control [2] key 3 times, display C", and
press the [>H] key.
Press the remote control [2] key once, display "A and press
the [>>|] key.
Press the remote control [7] key 2 times, display ",R and
press the [>>i] key.

3. The security is released and the unit enters the STANDBY
mode.

4. If a wrong code is input, the unit goes into the Code Re-
quest mode.

- How to register the security code on the Car Au-
dio Passport after replacement of the E2PROM
(F/E) (Code security models: E,M type)

1. Enter the test mode. (Refer to the section on How to Enter
the Test Mode)

2. Press [0] key briefly to enter the MENU.

While CODEVSET is being displayed, press [NI] key for
at least 1 second and enterthe security registration mode.
3. Using [FM] / [AM] / [K4] / [>H] keys, enter the code.
[FM] key : Number up [AM] key : Number down
[>>|] key :Cursor Right [M4] key :Cursor Left

4. Press [NI] key for at least 3 seconds to display RE-EN-
TER. Then, re-enter the code using the method in above
No. 3

5. Press [NI] key for at least 3 seconds to display AP-
PROVED".

6. Release the test mode. (Refer to the section on How to
Release the Test Mode)

Note : The security code for this model cannot be deleted by
all clear command.