Kenwood DPX 701 Service Manual

Page 20

DPX701/701U/701UY
DPX-MP7090U

20

TEST MODE

2. After the initialization process is completed, the following is
displayed.
At normal termination:

CDfiE2P77fiIO
AUDIOiE2P:O

At abnormal termination 1:When backup/installer memory
initialization is NG.

CD7E2P77720
AUDIOiEZPIX

At abnormal termination 2: When CD mechanism informa-
tion / service information initialization NG.

CD7E2Pfi771X
AUDIOiEZP:O

At abnormal termination 3: When all initialization NG.

CD7E2P7772><
AUDIOiEZPEX

3. While in this mode, even after an elapse of a pre-set time,
no backup memory items will be written to the E2PROM.

4. This mode is released by resetting. (What was on the last
screen will not be retained.)

OClearing DC offset error detection information
(E2PROM (F/E) data clear)

1. While simultaneously pressing down on [3] and [6] keys,
reset the unit to enter the DC offset error display mode.
(Even when the security is set, power can be ON for 30
minutes.)

2. During STANDBY sourcing. the current DC offset error con-
ditions will be displayed.

When error detected :DC7ERR
When error not detected :DC_OK"

3. While the error conditions are being displayed, press [AUTO]
/ [Tl] key for less than 1 second to clear the detection infor-
mation. (E2PROM clear)

4. DC offset error display mode is released by resetting. (What
was on the last screen will not be retained.)

O 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] keys.
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 [>>I] key.
Press the remote control [2] key once, display ",A and press
the [>>I] 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. It 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 Security is being displayed, press [NI] key for at
least 1 second and enter the security registration mode.
3. Using [FM] / [AM] / [I44] / [>H] keys, enter the code.
[FM] key : Number up [AM] key : Number down
[>N] key :Cursor Right [I44] 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.

Page 22

DPX701/701U/701UY
DPX-MP7090U

22

CD LOAD ERROR DETECTION

0 Operation
LOAD 1 1 1 (D- 1
SW1 1 1 1
(LOS sW) 1 . 1 1
SW3
(12EJE SW) 1 1 1
3 Special Q)
SW4 3 case I '''''
(LOE/LIM SW) 1
ERR condition :<- LOAD_ERR1->E .
1 1<_~1
LOAD_ERR2

* Trigger for starting the sequence: detecting the inserted disc
With SW 1 and 3 LOW edge.
(As an exception, protect LOAD when EJECT error)

(D If the protect timer was counted up before the LOS (SW1)
up edge detection, it is recorded as LOAD_ERR1.

(2) lithe protect timer was counted up after the LOS (SW1) up
edge detection, before the LOE/LIM (SW4) up edge detec-
tion, it is recorded as LOADiERRZ.

* When DISC was inserted briefly but pulled out immediately

(DISC is detected but not inserted), it is considered as an
error.
Special case: Even if LOS (SW1) up edge is not detected,
if LOE/LIM (SW4) up edge is detected, it is still recorded as
LOADiERFH . Also, if SW4 up edge is detected, the motor
is stopped.

CD EJECT ERROR DETECTION

0 Overview
Record the number of times when mechanism error (SW er-
ror) occurred at CD EJECT.
EJECT error recording shall be done in 4 patterns, by the SW
status illustrated below (3 patterns in models other than TYPE-
J).
EJECT error is established when EJECT operation is not com-
pleted after EJECT operation is started before the protect timer
count is completed (False EJECT, or ejection with no CD, is
considered as exception and is not recorded).
(False EJECT is determined when: While chucking is not done,
and when SW status is determined as NO DISC.)
Clearing of record is done in the following situations :
1) After reset is cancelled, when reading EEPROM, the code
is NG.
2) While in test mode, the specified key (Play/Pause key
pressed for 2 seconds) is input.
3) When in EEPROM all-clear initialization mode (refer to
the test mode specification document).
- Indication is shown on the test mode specification docu-
ment.
- Number of times with error(s) is 99 times at MAX.
- Not recorded in test mode [1+3 keys].
- When EJECT was error, re-try 3 times, and count each er-
rorwhile re-try as 1 error.

0 Operation
EJECT 1 @1 1 @1
SW1 1 1
(LOS SW) 1 1
I I @1 1
SW3 . . "'-
(12EJE SW) 1 1
SW4 - l l l
(LOE/LIM SW) 1 1 1
. . <:->: I I
ERR condition EJECT_ERR1 -~

I EJECT_ERR2 1<_.1
EJECT_ERR4

* Trigger for starting the sequence: detecting DISC ejection
by EJ ECT key. (As an exception, protect EJ ECT when LOAD
error)

(1) If the protect timer was counted up before the LOS (SW1)
down edge detection, it is recorded as EJECTfiERRL

(2) If the protect timer was counted up after LOS (SW1) down
edge before the 12EJE (SW3) down edge detection, it is
recorded as EJECTiERR2.

(4) If the protect timer was counted up after LOS (SW1)/12EJE
(SW3) down edge before the down edge detection of any
of these, it is recorded as EJECTfiEFtFI4.

is When EJECT is started. if not chucking, it is not counted as
EJECT error (considered as false EJECT). However, EJECT
when SW change is detected.