Kenwood DPXU 5120 S Service Manual

Page 5

DPX304/DPX308U/DPX404U
DPX-MP3120/U5120/U51208

COMPONENTS DESCRIPTION

0 CD PLAYER UNIT (X32-6240-00): DPX304, DPX-MP3120

Ref. No. Application / Function Operation / Condition / Compatibility
_ Driver for focusing & tracking coil, driver for sled & spindle motor, and opera-
ICS 4ch BTL Driver _ _ _ ,
tion for disc loading & election.
[C4 Servo DSP with built-in Audio DAC With built-in MP3/WMA/ACC decoder and 1M-bit-SRAM.
Power supply for BU1.5V.
[CS BU1.5V/D3.3V REG. , , ,
Power supply for digital/analogue/audio 3.3V.
01 APC (Auto Power Control) Drives LD (Laser Diode).
Q10~12 5V-3.3V Level Shift Converts signal from 5V to 3.3% or from 3.3V to 5V.
Q13 Inverter Inverts ZDET (Zero data DETection) signal.
Switches ON/OFF at one end of BU1.5V line which is separated into 2 direc-
Q14 D1 .5V Output tions.
Uses output voltage as D1 .5V.
Lowers signal level by about 1.2V so that Lo level signal that turns the regula-
D1 Level Down .
tor ON/OFF surely becomes Lo Judgment level of the regulator SW.
, , Prevents reverse bias which is applied to laser.
D2 Laser Diode Protection ,
Laser destruction prevention.
D3,4 Static Electric1ty Countermeasure Prevents malfunction by static electricity.

0 CD PLAYER UNIT (X32-6260-01): DPX308U/DPX404U, DPX-U5120/U51208

Ref. No. Application / Function Operation / Condition / Compatibility
Controls DSP and peripheral circuit.
IC1 Mechanism u-com USB host controller. (Compliant with Universal Serial Bus Specification
Rev2.0)
ic2 Servo DSP with Built-in Audio DAC Bulk? MPS'WMA'AAC demder
Built-in 1M-bit-SRAM.
_ Driver for focusing & tracking coil, driver for sled & spindle motor, and opera-
IC3 4ch BTL Driver . . . .
tion for disc loading & election.
_ , _ Connection authentication for iPod.
IC4 iPod Authentication _ _
MFI341S2162: iPhone-compliant.
[CS 3.3Va5.0V Level Shift Converts communication signal from 3.3V to 5.0V.
[CB 5.0Va3.3V Level Shift Converts communication signal from 5.0V to 3.3V.
Po er su I for dI ital back- .
ic7 BU1.5V/ BU3.3V Regulator W pp y g . p
Power supply for mechanism p-com.
[69 A3.3V Regulator Power supply for digital, analog and audio line.
03 D1 5V 0 t t The output voltage in which the power supply that diverges from the BU1.5V
' u pu line is turned on and off is used as D1 .5\/.
The output voltage in which the power supply that diverges from the BU3.3V
05 B.3.3V Output _ . _
line is turned on and off is used as DS.3V.
06 Control signal Inverter Controls 05.
Q7 APC (Auto Power Control) Laser diode driver.
Because the detection logic of LOE/LIMiSW is different in the mechanism
09 Control signal Inverter p-com and the system u-com, the logic to the mechanism u-com side is
reversed.
_ _ Prevents reverse bias which is applied to laser.
D1 Laser Diode Protection . .
Laser destruction prevention.
, _ _ _ The potential difference between DGND and AGND is absorbed, and the mal-
D2,3 Countermeasure against Static Electricity

function by static electricity is prevented.

Page 14

DPX304/DPX308U/DPX404U
DPX-MP3120/U5120/U51208

14

TEST MODE

(no count update)

Hm

Key Description of display Description
Displays OO~50 in XX. Displays it for less than 1 hour
- - o M : x
4 DISC ogeraltion D E D D D E E D inthe unit of10 minutes
time is a
p y D @ D:D D Displays 0000140922 in xxxxx MAX10922 (hour)
Disc operation Press and hold this key for 2 seconds in the Disc op-
I4 time information D @ D:D D E E E E D eration time display, to clear the Disc operation time
initialization (Cleared only for the media in display)
Disc EJECT Disc EJECT count display.
5 T : x
count display D D D I MAX 65535 (times)
Disc EJECT Press and hold this key for 2 seconds in the Disc Elect
I5 co ntinformaton E c N T :
\J _ . l D D D E E E E E count display, to clear Disc Eject count
initialization
Data flash Data flash writin in count dis la
6 writing-incount DEM:DDI"" _ g p y
. MAX 10000 (times)
display
OCD information display mode (sub-mode)
Key Description of display Description
Mecha error history 1 (latest)
M c H A : x x
E D E E m D D XX: numbers of errors, -" when there is none
CD mechanism Mecha error history 2 (latest)
M c H A 2 : x x
error log display E D E E D D XX: numbers of errors, -" when there is none
Mecha error history 3 (latest)
M c H A a : x x
E D E E D D XX: numbers of errors, -" when there is none
Load error switch 1
C_D load error @ E D D E E m D D I XX: numbers of errors, -" when there is none
information L d 't h2
oa errorswm
dis la L A 2 : x x
p y @ E D D E E D D XX: numbers of errors, -" when there is none
Eject error switch 1
T : x
D E E E D D I XX: numbers of errors, -" when there is none
Eiect error switch 2
' E C T 2 : x x
C_D Eject error E E E D D XX: numbers of errors, -" when there is none
DlSP Information E t 't h3
. )ec error SWI c
forward dis ia E c T 3 : x x
( , p y D E E D D XX: numbers of errors, -" when there is none
rotation) E h 4
(eat error switc
E c T 4 : x x
D E E D D XX: numbers of errors, -" when there is none
CD time code error count information (count skip)
CDtimecode IE-D-I-EDDDDD -
mode display
error count
CD-DA error count numbers
information 0 A : x
display E E D D D D D D D I XX: numbers of errors and - when there is none
. CD-ROM (compressed file) error count numbers
(count sklp) c M : x x
E E E D D D D D D XX: numbers of errors and - when there is none
CD time code error count information (count not up-
- v
CD time code E D D D D D D dated) mode display
error count CD DA error count numbers
information 0 A : x x
display E E D D D D D D D XX: numbers of errors and - when there is none

CD-ROM (compressed file) error count numbers
XX: numbers of errors and - when there is none

Page 21

DPX304/DPX308U/DPX404U
DPX-MP3120/U5120/U51208

TEST MODE

Key

While pressing

Description of display

Description

DC error detection status display
When DC error is detected (capacitor leaks, misconnections or any

:QjaZZiggkgy E E E E E E E E E E other errors are detected): ERR
When DC error is not detected (no capacitor leaks, misconnections
reset-start.
or any other errors are detected): OK"
DC error detection status display
When DC error is detected (capacitor leaks, misconnections or any
1 E E E E E E E E E other errors are detected): ERR
When DC error is not detected (no capacitor leaks, misconnections
or any other errors are detected): OK"
While pressing and holding the keys for 2 seconds in displaying mis-
.1 E E E E E E E E E connection and any other detection presence information, initialize it.
*After initializing, OK is displayed
Display of the number of capacitor leak detection
0: Not detected
2 DE D D D mm D Em 1~3:Detected1~3times
4: Detected 4 times or more
While pressing and holding [PRESET-Z] key for 2 seconds in display-
I2 E E E E E E E E E E ing number of capacitor leak detection, initialize its information

*After initializing, O" is displayed.

6. Frequency span switching function (M destination)

Power ON by pressing [SRO] key while pressing and holding [PRESET-l] key and [PRESET-S] key in Power OFF.
FM 50kHz/ AM 9kHz <-> FM 50kHz/ AM 10kH2

= iPod =

kENwooo

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