Kenwood DPX-302 User manual

CD RECEIVER
DPX302
DPX-MP2100
© 2007-2 PRINTED IN JAPAN
B53-0505-00 (N)406
This product uses Lead Free solder.
SUB WOOFER LEVEL CONTROL
FRONT AUX INPUT
WMA MP3 AAC PLAYBACK
EXTERNAL MEDIA CONTROL
DPX302
SUB WOOFER LEVEL CONTROL
FRONT AUX INPUT
WMA MP3 AAC PLAYBACK
EXTERNAL MEDIA CONTROL
DPX-MP2100
s
SIZE AA BATTERY
(Not supplied)
DC cord
DPX-MP2100: (E30-6408-05)
DPX302: (E30-6414-05)
Escutcheon
(B07-3172-12)
Remote controller assy
(A70-2087-05)
Screw set
(N99-1779-05)
Panel assy
(A64-4099-02)
RC-557
Lever
(D10-4589-04) x2
Escutcheon assy
(B07-3046-04)
Escutcheon
(B07-3165-02)
Mounting hardware assy
(J22-0429-03) Adhesive double-
coated tape
(H30-0595-04)
Panel assy
(A64-4100-02)
DPX302
(K type)
DPX-MP2100
(M type)
DPX-MP2100
DPX302
SERVICE MANUAL

1200mV
600mV
FM :
800mV
ELECTRIC UNIT (X34- )
SWITCH UNIT (X16- )
FRONT-END
LX-BUS
E-VOL
IC2
BU5V D5V
PREF
PRE+B
A8V
SYSTEM u-COM
BU
POWER SP-OUT
LOGIC
Q400-403
PRE-OUT
PHONE
ACC-DET
Q112
DIMMER
Q108
SURGE-
Q109
BU5V
IC12
P-CON-SW
Q1,2
106
BU-DET
Q111
IC5
SW14V
Q4,9
SW5V
Q3,11
ANT-CON
Q101,102
Q7,8
TUNER
Q302,303
A8V
IC3
DC-CN
TUN8V
SERVO+B
D5
BU5
SW5
8V
CD5V
DET
MUTE
BU
DC-CN etc
PAN5V
RESET
IC7
ILLUMI+B
CN
RESET ENCODER
ROTARY
REMOTE SW5V ILLUMI
KEY
MATRIX
KEY
IC1
SW5 Q6,7 PAN5
IC4
IC1
A8V
ILLUMI+B
ILLUMI+B
SW
Q305,306
AM+B AM+B
Q300,301
ED1
MUTE
IC6
TUN8V
AM+B
SW5
A1
SERVO+B
A8V
BU5
Q305,306
BU5
BU5
MARINE DISP
OPEL DISP
BU5
SW5
CD
SERVO
BU5
BU5
BU5
IC
VFD
1/2W Rx2 D5V
Q107
EXT-
AMP-CON
+B
ILLUMI
CN5
J2
MECHA
CD
DME1
J1
J3
R31,39
R112,113
C104, D107,
J1
Q103,
J1
J4
S3 S1
AUX IN
J2
1/2W R
R24
W1
713
2
10
1
REAR L/R
FRONT L/R
FRONT/
SW5
PON CD
ANT CON
P-CON
BU DET
ACC
ILLUMI
PHONE
P-ANT
P-CON
B.U.
MUTE DC-DET
PHONE
ACC DET
DIMMER
1
1
2
RST
PHONE
DIMMER / ACC DET
P CON / P-ON
BU DET / ANT CON
PON CD / PON ILLUMI
9
5
P-ON
P.ON
P-ON
P-ON
PON ILLUMI
AM+B
BU DET
1
1
3
MUTE
38
2
3
EX AMP
EX AMP EXT-CONT
REAR/NF
(VOL : -10dB)
FM : 557mV
CD/WMA/
AM : 182mV
CH : 1251mV
AUX : 1251mV
MP3 : 1178mV
EF
A
C
B
TR COIL
FO COIL
APC
IC7
16.934MHz
CLOCK
IC3
LPF
IC2
SW
A3.3V REG
IC1
LOADING &
MICRO
PROCESSOR
IC4
CLOCK
16.00MHz
RF AMP
SERVO
MP3 DECODER
WMA DECODER
AAC DECODER
PROCESSOR
D3.3V REG
IC6
MOTOR
DRIVER
MOTOR
SPINDLE
BU3.3V REG
IC5
S2
S4
S1
S3
+
1Mbit SRAM
+
+
+
+
(0-01)ONLY
SLED
MOTOR
DM1
DM2
Q7,8
X1
X2
SDRAM
16MBIT
IC8
Q4
DPU1
CD PLAYER UNIT (X32-5920-04) BOARD
MOTHER
(X14- )
VREF
D.GND
BU5V
8EJE-SW
12EJE-SW
LOS-SW
LOE/LIM-SW
D.GND
D5.0V
MOTOR
LO/EJ
S.GND
D.GND
D.GND
P-ON1
S.GND
DATA
MUTE R
MUTE L
MSTOP
MRST
CLK
A.GND
A8V
R-ch
L-ch
D.GND
S.GND
D.GND
D.GND
D.OUT
P-ON2
S7.5V
DMUTE
D.GND
2
DPX302,DPX-MP2100
BLOCK DIAGRAM

●SWITCH UNIT (X16-394x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Remote Control IC
Q1~3 GRID DRIVER Each TransisteR’s base is “L” then GRID is On
Q6,7 SW5V The
Power supply of IC1 is turned on when Q6’s base level goes “L”
Q9 RED SW RED LED is turned on when Q9’s base level goes “H”
Q12 VFD RESTART Key scan start at Q12’s Base goes “H” when the SET’s Power is On
●ELECTRIC UNIT (X34-414x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 System µ-COM Controls FM/AM tuner, the changer, CD mechanism, Panel, volume and tone
IC2 E. Vol Controls the source, volume, tone
IC3 A8V Ref
Power supply Output 1.27V
IC4 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.
IC5 ILL+B
Power supply Output 1.225V
IC6 Muting logic IC Controls logic for muting
IC7 Reset IC “L” when detection voltage goes below 3.6V or less
IC12 SW Regulator Power supply for mp3 and VFD
Q1,2 B.U.5V AVR While BU is applied, BU5V AVR outputs +5V
Q3,11 SW5V When Q11’s base goes Hi, SW5V outputs +5V
Q4,9 SW14V When Q9’s base goes Hi, SW14V outputs 14V
Q5,6,10 AUDIO8V AVR When Q10’s base goes Hi, A8V AVR outputs 8.0V
Q7,8 SERVO+B AVR When Q8’s base goes Hi, S+B AVR outputs 7.5V
Q12 SW for IC12 When Q12’s base gose Lo, IC7 is turned on
Q13 PANEL 5V When Q13’s base gose Lo, PANEL5V outputs 5V
Q101,102 P-ANT SW When Q102’s base goes Hi, P-ANT SW outputs 14V
Q103,106 P-CON SW When Q106’s base goes Hi, AVR outputs 14V
Q104,105 P-CON Protection Protect Q103 by turning on when P-CON output is grounded
Q107 EXT-AMP-CON When Q107’s base goes Lo, Q107 is turned on
Q108 Small lamp det SW When Q108’s base goes Hi, Q108 is turned on
Q109 SERGE Det. When Q109’s base goes Hi, IC4 is changed into a standby state
Q111 BU det When Q111’s base gose Hi, Q111 is turned on
Q112 ACC det When Q112’s base gose Hi, Q112 is turned on
Q113 Mute-Driver When a base gose Hi, Pre-out mute driver is turned on
Q114 Mute-Driver Q114 turned on by RST
Q115,116 Pre-out mute driver When a base gose Lo, mute driver is turned on
Q298,299 Tuner8V SW When Q299’s base goes Hi, Tuner8V output 8V
Q300,301 AM+B When Q301’s base goes Hi, AM+B is out
Q302,303 Tuner8V When Q303’s base goes Hi, Tuner8V outputs 8V
Q305,306 SW ILL+B When Q306’s base goes Hi, SW ILL+B outputs 11V
Q400~403 Pre-out mute SW When a base goes Hi, Pre-out is muted
COMPONENTS DESCRIPTION
3
DPX302,DPX-MP2100

●CD PLAYER UNIT (X32-5920-04)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 A3.3V regulator Power supply for audio 3.3V
IC2 Low pass filter
IC3 4ch BTL driver Driving spindle motor and loading/ejection operation
IC4 Mechanism µ-com
IC5 BU3.3V regulator
Power supply for backup 3.3V
IC6 D3.3V regulator Digital 3.3V
Power supply
IC7 Audio DAC built-in servo DSP MP3, WMA, and AAC compatible
IC11 Buffer IC Level shift
Q1 A3.3V discharge circuit
Q4 APC (Auto power control) Adjusts current to be sent to laser
Q5,6 SW 5V
Q7,8 SW 8V
D1 APC (Auto power control) Protects the pick-up laser diode
COMPONENTS DESCRIPTION
MICROCOMPUTER’S TERMINAL DESCRIPTION
●SYSTEM µ-COM (X34: IC1)
Pin No. Pin Name Module I/O Application Truth
value table
Processing Operation Description
1 REMO EXTRA I Remote control signal input Detect pulse width
2 LX MUTE LX M I MUTE request from slave unit H: Mute ON, L: Mute OFF
3 AUD SDA AUDIO O E-VOL data output terminal
4 AUD SEL AUDIO O E-VOL control terminal
5 AUD SCL AUDIO O E-VOL clock output terminal
6 BYTE µCOM -
7 CNVSS µCOM -
8 XCIN µCOM I
9 XCOUT µCOM I
10 RESET µCOM -
11 XOUT µCOM -
12 VSS µCOM -
13 XIN µCOM - 12.0MHz
14 VCC1 µCOM -
4
DPX302,DPX-MP2100

Pin No. Pin Name Module I/O Application Truth
value table
Processing Operation Description
15 NMI µCOM I Not used
16 NC O Not used Fixed to L
17 NC O Not used Output L fixed
18 LX REQ S LX M I Communication request from slave unit
19 PON AM
Power supply I/O AM power supply control H: When AM, Hi-z: When not AM
20 LX REQ M LX M O Communication request to the slave unit
21 TUN IFC OUT TUNER I F/E IFC OUT input terminal H: Station found, L: Station not found
22 NC O Not used Output L fixed
23 NC O Not used (except RDS and RBDS models) Output L fixed
24,25 NC O Not used (except RDS model) Output L fixed
26 PWIC BEEP PWIC O Beep output
27 TUN SCL TUNER I/O F/E I2C clock input/output terminal
28 TUN SDA TUNER I/O F/E I2C data input/output terminal
29 VFD DATA to PANEL I/O VFD data input/output terminal Data input/output
30 VFD INT to PANEL I VFDINT input terminal INT input terminal
31 VFD CLK to PANEL O VFD clock output terminal Normal: 125kHz
Low consumption mode: 62.5kHz
32 VFD RST to PANEL O VFD driver reset terminal
H: Clear RESET, L: RESET
L: Momentary power down, when panel
detached and 11 minutes after ACC OFF
33 IC SDA CD I/O
CD mechanism I2C data input/output terminal
34 IC SCL CD I/O CD mechanism I2C clock output terminal
35 PON PANEL Power supply I/O Panel 5V control terminal
L: ON, Hi-Z: Momentary power down, when
panel detached and 11 minutes after ACC OFF
36~38 NC O Not used Output L fixed
39 EPM µCOM I FLASH EPM input terminal
40,41 NC O Not used Output L fixed
42 ROMCOR DET EXTRA I E2PROM writing-in request H: Writing-in
43 NC O Not used (no USB model) Output L fixed
44 VFD CS to PANEL O VFD chip select control terminal
45 ROTARY CW to PANEL I VOL key input Detect pulse width
46 ROTARY CCW to PANEL I VOL key input Detect pulse width
47 CD DISC12 SW CD I CD disc detection terminal (12cm)
48 CD LOS SW CD I CD loading detection terminal
49 CD MUTE R CD I CD MUTE (Rch) request terminal H: Normal, L: Rch mute request (valid only
when in CD mode)
50 CD MUTE L CD I CD MUTE (Lch) request terminal H: Normal, L: Lch mute request (valid only
when in CD mode)
51 CD MRST CD O CD mechanism µ-com RST terminal H: Normal, L: RESET
MICROCOMPUTER’S TERMINAL DESCRIPTION
5
DPX302,DPX-MP2100

Pin No. Pin Name Module I/O Application Truth
value table
Processing Operation Description
52 CD MSTOP CD O CD mechanism µ-com stop terminal H: Mechanism µ-com in operation
L: Mechanism µ-com stop
53 CD DISC8 SW CD I CD disc detection terminal (8cm)
54 CD LOE LIM SW CD I CD detection terminal (chucking SW) H: Loading completed, L: No disc
55 CD LOEJ CD I/O CD motor control terminal qRefer to the truth value table
56 CD MOTOR CD O CD motor control terminal qRefer to the truth value table
57 PON ILLUMI
Power supply I/O Key illumi power supply control ON: H, OFF: Hi-Z
58 PON CD
Power supply O Power supply control terminal for CD WMA L: POWER ON, H: POWER OFF
H: When resetting before M-STOP
59 PON
Power supply O Power supply control POWER ON: H, POWER OFF: L
60 VCC2 µCOM -
61 EXT AMP CON EXTRA I/O EXTERNAL AMP control
62 VSS µCOM -
63 TYPE 1 TYPE I Destination switching rRefer to the truth value table
64 TYPE 2 TYPE I Destination switching rRefer to the truth value table
65 TYPE 3 TYPE I Destination switching rRefer to the truth value table
66 TUN TYPE1 TYPE I Destination setting 1 eRefer to the truth value table
67 TUN TYPE2 TYPE I Destination setting 2 eRefer to the truth value table
68 OEM DISP DATA EXTRA I/O External display DATA External display
69 OEM DISP CLK EXTRA I/O External display CLK External display
70 OEM DISP CE EXTRA I/O External display control request External display
71 NC O Not used Output L fixed
72 P CON
Power supply O External amplifier control terminal H: POWER ON, L: POWER OFF
L: STANDBY source
73 VFD KEY REQ toPANEL I Communication request from VFD driver Connect to INT
74 ANT CON EXTRA O Power antenna control TUNER ON: H
75 ILLUMI DET EXTRA I Dimmer illumi detection L: ON, H: OFF
76 BU DET EXTRA I Momentary power down detection L: BU found
H: BU not found, momentary power down
77 ACC DET EXTRA I ACC power supply detection L: ACC ON, H: ACC OFF
78 (PWIC SVR) PWIC O SVR discharging circuit H: For 5 seconds after POWER OFF
momentary power down, L: Thereafter
79 PWIC MUTE PWIC O Power IC MUTE terminal L: When in STANDBY source, at momentary
power down, L: While TEL MUTE
80 PWIC STBY PWIC O Power IC standby control POWER ON: H, POWER OFF: L
81 LX CON LX M O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
82 MUTE PRE R AUDIO O PRE OUT MUTE Rch
H: When CD MUTE R is L (while playing CD)
H: When momentary power down, Fixed to L:
Only when 2 zone or NAVI interruption
MICROCOMPUTER’S TERMINAL DESCRIPTION
6
DPX302,DPX-MP2100

Pin No. Pin Name Module I/O Application Truth
value table
Processing Operation Description
83 MUTE PRE L AUDIO O PRE OUT MUTE Lch
H: When CD MUTE L is L (while playing CD)
H: When momentary power down, Fixed to L:
Only when 2 zone or NAVI interruption
84 MUTE 0 AUDIO I/O E-VOL FRONT MUTE terminal L: MUTE ON, Hi-Z: MUTE OFF
85 MUTE 1 AUDIO I/O E-VOL REAR MUTE terminal L: MUTE ON, Hi-Z: MUTE OFF
86 MUTE 2 AUDIO I/O E-VOL OTHER MUTE terminal L: MUTE ON, Hi-Z: MUTE OFF
87 LINE MUTE EXTRA I Line mute detection
TEL MUTE: 1V or lower, NAVI MUTE: 2.5V
or higher, In J-TYPE, NAVI MUTE: 1V or
less, or 2.5V or higher
88 NC O Not used (MMC) Output L fixed
89 PWIC DC DET PWIC I DC offset detection terminal
90 LX RST LX M O Hardware-reset to slave unit H: Reset, L: Normal
91 MUTE C AUDIO I/O E-VOL MUTE terminal (for AFS) L: MUTE ON, Hi-Z: MUTE OFF
92 NC O Not used Output L fixed
93 RDS NOISE TUNER I FM noise detection terminal
94 AVSS µCOM -
95 TUN SMETER TUNER I S meter input
96 VREF µCOM - Connect to P ON
97 AVCC µCOM - Connect to VCC
98 LX DATA S LX M I Data from slave unit
99 LX DATA M LX M I/O Data to slave unit
100 LX CLK LX M I/O LX-BUS clock
Truth value table
qCD MOTOR, CD LOEJ
CD MOTOR CD LOEJ
Stop L L
Load H L
Eject HH
Brake H Hi-z
eTUNER TYPE
TUN TYPE1 (66PIN) TUN TYPE2 (67PIN)
Kenwood brand model L L
OEM model 1 L H
OEM model 2 H L
OEM model 3 H H
r07 2-DIN
TYPE3 TYPE2 TYPE1 Destination X34-414
1 1 0 DPX302 0-11
1 1 1 DPX-MP2100 0-22
MICROCOMPUTER’S TERMINAL DESCRIPTION
7
DPX302,DPX-MP2100

●CD MECHANISM µ-COM (X32: IC4)
Pin No. Pin Name I/O Application Processing Operation Description
1 NC - Not used Low-fixed
2 E2P SCL I/O ROM correction E2P I2C clock
3~5 NC - Not used Low-fixed
6 VDD - 5V electric potential
7 GND - GND electric potential
8,9 NC - Not used Low-fixed
10,11 PON1, PON2 O Power ON/OFF control H : ON, L : OFF
12 LOE/LIM SW I Down-limit SW detection L : Inner circumference detection
13 DAC MUTE O DAC MUTE control L : MUTE OFF
14 DAC RST O DAC RESET L : RESET
15 EMPH O External DAC Emphasis control L : Emphasis OFF
16,17 NC - Not used Low-fixed
18 IC/Vpp - Write voltage (FLASH) H : In writing
19 MUTE L O Lch audio MUTE control L : MUTE ON, H : MUTE OFF
20 MUTE R O Rch audio MUTE control L : MUTE ON, H : MUTE OFF
21 TYPE I DAC switching L : DSP built-in DAC Not used
22 TEST O 1 O TEST MODE O 1 (Not used)
23 TEST O 2 O TEST MODE O 2 (Not used)
24 TEST O 3 O TEST MODE O 3 (Not used)
25 TEST O 4 O TEST MODE O 4 (Not used)
26 NC - Not used Low-fixed
27 WAIT I Wait control signal detection
28~30 NC - Not used Low-fixed
31 RESET I Reset detection H : NORMAL, L : RESET
32 XT1 I Not used
33 XT2 - Not used
34 REGC -
35 X2 -
36 X1 I
37 Vss - GND electric potential
38 VDD - 5V electric potential
39 NC - NC
40 WRL I Multiplex WRITE signal
41,42 NC - Not used Low-fixed
43 RD O Multiplex RD signal
44 ASTB O Multiplex ASTB signal
MICROCOMPUTER’S TERMINAL DESCRIPTION
8
DPX302,DPX-MP2100

Pin No. Pin Name I/O Application Processing Operation Description
45 NC - Not used Low-fixed
46 NC - Not used Low-fixed
47~54 AD0~AD7 I/O Multiplex address/data
55 BVdd - BUS interface power supply
56 BVss - BUS interface GND
57~61 AB8~AB12 I/O Multiplex data/address
62~65 NC - Not used Low-fixed
66 CS O Chip select control H : OFF, L : ON
67 DSP RESET O DSP reset control H : NORMAL, L : RESET
68~70 NC - Not used Low-fixed
71 Avdd -
72 Avss -
73 Avref I A/D port reference voltage input
74 RAMSEL2 I With DRAM/No DRAM switching for different models H : With DRAM, L : No DRAM
75 RAMSEL I With DRAM/No DRAM switching for different models H : With DRAM, L : No DRAM
76 RZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V
77 LZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V
78 AAC I AAC compatibility switching H : AAC non-compatible, L : AAC compatible
79 ASEL I Audio output polarity switching H : Reverse output, L : Non-reverse output
80 E2P WR I E2PROM write switching H : E2PROM WRITE, L : NORMAL
81 TEST I 0 I TEST MODE I 0 (Not used)
82 TEST I 1 I TEST MODE I 1 (Not used)
83 TEST I 2 I TEST MODE I 2 (Not used)
84 TEST I 3 I TEST MODE I 3 (Not used)
85,86 NC - Not used Low-fixed
87 MSTOP I Standby restart interruption H : STOP release, L : STOP
88 INTSV I Interruption from servo IC H : Interruption
89~92 NC - Not used Low-fixed
93 D-MUTE O Driver MUTE H : OFF, L : ON
94 SYS SDA I/O System µ-com I2C data
95 NC - Not used Low-fixed
96 SYS SCL I/O System µ-com I2C clock
97~99 NC - Not used Low-fixed
100 E2P SDA I/O ROM correction E2P I2C data
MICROCOMPUTER’S TERMINAL DESCRIPTION
9
DPX302,DPX-MP2100

TEST MODE
10
DPX302,DPX-MP2100
●How to enter the test mode
Press and hold the [1] and [3] keys and reset.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
●How to clear the test mode
Reset, momentary power down, Acc OFF, Power OFF.
●Test mode default condition
• Source is STANDBY.
• Display lights are all turned on.
• The volume is at -10dB (The display is 30).
• LOUD is OFF.
• CRSC is off regardless of the availability of switching
function.
• SYSTEM Q is NATURAL (=FLAT).
• BEEP is always activated by briefly pressing a button.
• AUX is ON.
●Special display in tuner mode
Error is found in front-end, etc. if indications below are
displayed while in tuner mode.
“TNE2P_NG”: Front-end E2PROM values are still default
(not determined).
“TNCON_NG”: Cannot communicate with the front-end.
●K3I forced switching
Every time when [6] key is pressed in tuner FM mode,
switched in the following order: AUTO →Forced WIDE →
Forced MIDDLE →Forced NARROW →AUTO. Default
status is AUTO, and displayed as shown below.
AUTO: FM1_98.1A
Forced WIDE: FM1_98.1W
Forced MIDDLE: FM1_98.1M
Forced NARROW: FM1_98.1N
●CD receiver test mode specification
• Display mode default setting shall be P-TIME.
• Jumps to the following tracks by pressing the [ ] key.
No. 9
→No. 15 →No. 10 →No. 11 →No. 12 →No. 13 →
No. 22 →No. 14 →No. 9 (recursive)
Note that when playing a CD-DA disc and an MP3/WMA/
AAC disc with 8 files or less, the disc is played from the
1st track in the normal order.
• Pressing the [ ] key goes back by 1 track from the track
being played.
• When playing an MP3/WMA/AAC disc, display the file
format before starting to play each file. (“MP3”, “WMA”,
“AAC”)
• When CD is the source, press the [1] key briefly to jump
to No. 28.
• When CD is the source, press the [2] key briefly to jump
to No. 14.
• When CD is the source, press the [3] key briefly to display
CD mechanism model name and the version. Press the
[3] key briefly again to go back to the normal screen. (time
code display)
• When CD is the source, press the [6] key to jump to No.
15. At this time, the volume value is set to 25 (2V PRE).
●AUDIO adjust mode
• Press [AUD] key briefly to enter the audio adjustment
mode.
• Press the remote control [∗] key and [AUD] key to go into
the audio adjustment mode.
• Both AUDIO FUNCTION MODE and SETUP MODE
adjustment items are included.
• By pressing [AUD] or [FM] key briefly, switch the item
to be adjusted in the following order. (only in forward
rotation)
The default item shall be Fader, and then the item is
forwarded in the following order: Balance →Bass Level
→Middle Level →Treble Level →HPF Front →HPF
Rear →LPF Sub Woofer. (thereafter arbitrary)
• Continuous forwarding by remote control is prohibited.
• Fader is adjusted by the VOL knob and [ ] / [ ] keys
in 3 steps: R15 ↔0 ↔F15. (Default value: 0)
• Balance is adjusted by the VOL knob and [ ] / [ ] keys
in 3 steps: L15 ↔0 ↔R15. (Default value: 0)
• Bass/Middle/Treble Level are adjusted by the VOL knob
and [ ] / [ ] keys in 3 steps: -8 ↔0 ↔+8. (Default
value: 0)
• HPF Front / Rear is adjusted by the VOL knob and [ ]
/ [ ] keys in 2 steps: Through ↔220Hz. (Default value:
Through)
• LPF Sub Woofer is adjusted by the VOL knob and [ ]
/ [ ]] keys in 2 steps: 50Hz ↔Through. (Default value:
Through)
6680:0123
Model name Version

TEST MODE
11
DPX302,DPX-MP2100
• Sub Woofer Phase is adjusted by the VOL knob and [ ]
/ [ ] keys in 2 steps: Reverse ↔Normal. (Default value:
Normal)
• Volume Offset (except built-in AUX) is adjusted by the
VOL knob and [ ] / [ ] keys in 2 steps: -8 ↔0. (Default
value: 0)
• Volume Offset (built-in AUX) is adjusted by the VOL knob
and [ ] / [ ] keys in 3 steps: -8 ↔0 ↔+8. (Default
value: 0)
• Loudness ON/OFF is adjusted by the VOL knob and [ ]
/ [ ]keys in 2 steps: OFF ↔ON. (Default value: OFF)
• Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f
are not displayed in the audio adjustment mode.
●MENU
• Press [EQ] key briefly to enter the MENU.
• Press the remote control [DNPP/SBF] key or the [DIRECT]
key to enter the MENU.
• Continuous forwarding by remote control is prohibited.
●Backup current measurement
If reset while in Acc OFF (Back Up ON) condition, MUTE
terminal goes off 2 seconds later, rather than 15 seconds.
(During this time, the CD mechanism does not function.)
●Special displays while all lights are on
When all lights are on with STANDBY source, if the
following keys are pressed, the following messages are
displayed.
[1]
key
Version is displayed (forwarding)
(Display) TYPE : x_ _ _ →(“x” is displayed in hexadecimals)
631K–1.02 →(“development ID” – “version”)
all lights on →
∗TYPE indicates µ-com destination, and shows real-time
condition of the destination terminal.
[2]
key
Serial No. is displayed (8 digits)
(Display) xxxxxxxx
[3]
key
Key pressed briefly: Power ON time is displayed.
While Power ON time is displayed, press and hold for 2
seconds to clear the Power ON time.
(Display) PON_0Hxx (00~50 is displayed for “xx”.
When less than 1 hour, display by
increment of 10 minutes)
xxxxx (00001~10922 is displayed for “xxxxx”)
MAX 10922 (hours)
[4]
key
Key pressed briefly: CD operation time is displayed.
While CD operation time is displayed, press and hold for 2
seconds to clear the CD operation time.
(Display) CDT_0Hxx (00~50 is displayed for “xx”
When less than 1 hour, display by
increment of 10 minutes)
xxxxx (00001~10922 is displayed for “xxxxx”)
MAX 10922 (hours)
[5]
key
Key pressed briefly: Number of CD EJECT time is displayd.
While the CD EJECT times is displayed, press and hold for
2 seconds to clear the CD EJECT time.
(Display) EJCxxxxx MAX 65535 (times)
[6]
key
Not used.
[FM]
key
ROM correction version is displayed.
(Display) R1234_ _ _
When E2PROM is not installed: ERR_ _ _ _ _
When not written in: R– – – –_ _ _
When data not matching: R∗∗∗∗_ _ _
[]
key
AUDIO data initialization
(Display) AUD_INIT
[]
key
Key pressed briefly: Forced Power OFF data displayed.
While the forced power OFF data is displayed, press and
hold for 2 seconds to clear the data.
(Display) POFF_– – – (No Forced Power OFF) ←Fixed display
[ ]
key
Key pressed briefly: CD information display mode ON/OFF.
While in CD information display mode, press and hold for 2
seconds to clear all CD information.
∗Please refer to the next table.
●CD information display mode
[AM]
key
↑
I2C communication condition display
(Display) I2C_OK_ _
NG
CD mechanism error log display
(switched by [ ] / [ ] keys)
(Display) MCERR1: xx ↔MCERR2: xx ↔MCERR3: xx ↔
MCERR1: xx ↔
(“– –” or the error code is displayed for “xx”)
CD loading error log display (switched by [ ] / [ ] keys)
(Display) LDERR1: xx ↔LDERR2: xx ↔LDERR1: xx ↔
(Number of times is displayed for “xx”)
MAX 99 (times)

12
DPX302,DPX-MP2100
↓
[FM]
key
CD ejection error log display (switched by [ ] / [ ] keys)
(Display) EJERR1: xx ↔EJERR2: xx ↔EJERR3: xx ↔
EJERR4: xx ↔EJERR1: xx ↔
(Number of times is displayed for “xx”)
MAX 99 (times)
CD time code error count data display (missing counts)
(switched by [ ] / [ ] keys)
(Display) CNT_LOSE ↔CDDA_ _: xx ↔CDROM_: xx ↔
CNT_LOSE ↔
(Number of times is displayed for “xx”)
MAX 99 (times)
CD time code error count data display (count not updated)
(switched by [ ] / [ ] keys)
(Display) CNT_STAY ↔CDDA_ _: xx ↔CDROM_: xx ↔
CNT_STAY ↔
(Number of times is displayed for “xx”)
MAX 99 (times)
●Initializing AUDIO-related setting value
Press the [ ] key in the STANDBY source and reset the
AUDIO setting value to the test mode default value.
●Other
• When Power ON, do not display “CODE_OFF” and
“CODE_ON”.
• When the source is STANDBY, press and hold [AUTO]
key for 1 second to switch PREOUT Rear and Sub
Woofer. (2PREOUT model)
• When started in Test Mode, duration of prohibiting LINE
MUTE shall be changed from 10 seconds to 1 second.
• While in Test Mode, serial number is not written with a
serial-number-writing jig.
• When in Test Mode, when DC offset error detection is run,
the detection information is not written into the E2PROM.
• DEMO mode shall not be operated while in Test Mode,
CD Mechanism Error Log Data Clearing Mode, or DC
Offset Error Detection Data Clearing Mode.
Also, do not display DEMO ON/OFF option items in the
MENU in STANDBY source in the above modes.
●Clearing CD mechanism information and
service
information (Clearing E2PROM (F/E) data)
1. While pressing the [EQ] key and [ATT] key, reset-start to
start CD mechanism and service information initialization.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
[CD mechanism information]
• Displays I2C communication condition
• Displays CD mechanism error log
• Displays CD loading error data.
• Displays CD ejection error data
• Displays CD time code error count data (missing count)
• Displays CD time code error count data (count not
updated)
[Service information]
• Displays power ON time is displayed
• Displays CD operation time
• Displays number of CD EJECT times
• Displays forced Power OFF data
2. After the initialization process is completed, the following
is displayed.
When successfully completed: “CD_O_ _ _ _”
When finished but unsuccessful: “CD_X_ _ _ _”
3. This mode is cancelled by resetting. (The last screen will
not be retained.)
●Clearing DC error detection data
(E2PROM (F/E) data clearing)
1. Press and hold [3] and [6] keys and reset-start to go into
the DC offset error display mode.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
2. While in STANDBY source, the current DC offset error
condition is displayed.
When detected: “DC_ERR_ _”
When not detected: “DC_OK_ _ _”
3. While error condition is being displayed, press [AUTO]
key briefly to clear the detection data. (clear E2PROM)
4. DC error display mode is cancelled by resetting. (The last
screen will not be retained.)
●Frequency span switching (K/M type)
While pressing and holding [1] and [5] keys, press [SRC]
key simultaneously to power ON.
●Security
• Forced Power-ON mode (all models)
Even when security is permitted, by pressing and holding
[EQ] and [4] keys and pressing RESET simultaneously,
Power can be ON for 30 minutes. After 30 minutes,
recovered only by reset.
TEST MODE

13
DPX302,DPX-MP2100
• Simplified security code clearing procedure (simplified
security model)
1. While code is requested, press and hold [AUTO]
key and press [ ] key for 3 seconds. (“– – – –”
disappears.)
2. Enter “KCAR” by remote control.
Press the remote control [5] key 2 times, display “K”,
and press the [ ] key.
Press the remote control [2] key 3 times, display “C”,
and press the [ ] key.
●Purpose
Prevent customer’s vehicle speakers damages, burnouts,
and smoking.
Avoid the connected speakers to be burned out,
damaged, or to smoke when DC occurs between the
audio power amp. + and - outputs.
●Processing after detection
1. System status
• At the detection of DC error, error data is to be saved
immediately (E2PROM error log save area).
• Display the error message on the display. The system
shall maintain the current condition, including the
operation. Shut down audio system power supply. Set
Mute to ON.
• Although switching between Power OFF and ON (ACC,
BU, and Key operation) is valid, switching from Off to ON
shall be error until the µ-com is reset.
∗While power-on, even if the IC2VI DCErr output terminal
logic recovered to normal level value, the error condition
shall continue.
• Prohibit to save the backup/installer memory to E2PROM
(nonvolatile memory).
2. Controlling µ-com terminal
• Set Mute for all channels including for pre-out.
• Turn off power IC control system power supply. (Set AMP-
Standby function to valid)
• Set P-Con output to OFF (Logic by which external AMP
unit is turned off).
∗The purpose is to shut down audio output. Basically, the
logic sets the audio output system signal line when in
Standby source.
3. Key specification
• After DC offset error is detected, only [EJECT] key and
[POWER] key function.
4. Display specification
• Display the “PROTECT” string and blink all characters at
1Hz.
∗Use the indication below with the highest priority (error
message), and maintain the error message even when
the source is changed.
●Cancel Condition
• Press the Reset terminal on the main body. or set Backup
to OFF (Unplug and plug back in the DC connector).
The history is maintained (E2PROM data is saved).
●Note while in test mode
• While in test mode, even if DC leak is detected, it is not
written into E2PROM.
When an error is detected, the display is enabled.
●Other
• Function for checking and clearing data in E2PROM by a
given key shall be included.
(Used at production dpt. and service center, etc.)
TEST MODE
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 [ ]] key.
3. Security is cleared and the source is set to STANDBY.
4. If a wrong code is entered, code request mode is
displayed.
DC OFFSET ERROR
Display Example
PROTECT
Blink alternately
at 1Hz
(
(

14
DPX302,DPX-MP2100
ABCDE
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
D105
Q104
Q105
Q303
Q13
Q113
D303
D107
D511
D512
Q298
Q400
Q401
Q402
Q403
D106
Q6
D11
D401
D402
D403
D502
Q10
Q299
Q305
Q114
Q306
Q302
J2
J4
CN1
D505
D506
J1
J3
W1
P1
A1
CN4
IC2
IC3
IC6
IC4
ELECTRIC UNIT
X34-414x-xx (J76-0173-22)
C7
R7
C102
C311
R260
R323
R325
C410
R20
W15
C104
C203
C204
R327
W997
C501
C507
C513
W931
R8
R108
R111
R112
R129
R131
R259
R404
R405
R408
R409
R519
X2
R431
C103
CP201
CP202
L202
R21
R101
R102
R103
R109
R130
R201
R204
R208
R257
R25
8
R322
R324 R402
R403
R406
R407
R414
R415
R420
R421
R501
R505
R506
R507
W3
X1
R311
R312
R262
R263
R802
C802
R801
W932
BE
BE
BE
BE
BE
BE
BE
BE
BEBE
BE
B
BE
E
BE
BE BE
B
BE
BE
214
115
CNVSS
VT
IFC
PL-SDA
PL-SCL
S-METER
SDA SCL
AFS
224
123
C428
C312
C405
C512
C529
C313
C419
C420
C417
C8
C411
W123
C530
C999
C306
C310
C308
C401
C402
C403
C431
W130
W118
W129
L301
C415
C416
C418
C503
C504
C505
C506
W128
W127
W126
W125
W120 W119
W124
W122 W121
GIO
17
148
100
1
26
25
33
32
48
161
17
49
64
13
9106 7 5 1
127
226
11 12 8 4 3
3
1
24
1
2

JIHGF
1
2
3
4
5
6
7
X34-414x-xx
Ref. No. Address
IC1 5F
IC2 5D
IC3 4E
IC4 2D
IC5 3H
IC6 5E
IC12 6G
Q1 3H
Q2 3H
Q3 4G
Q4 3G
Q5 4F
Q6 4E
Q7 3H
Q8 3H
Q9 3G
Q10 4F
Q11 4G
Q13 6D
Q102 2F
Q104 3F
Q105 3E
Q106 3F
Q107 3G
Q108 3F
Q109 3G
Q111 3G
Q112 3F
Q113 5E
Q114 5D
Q298 6B
Q299 6B
Q302 6B
Q303 5B
Q305 7E
Q306 6F
Q400 3B
Q401 3B
Q402 3C
Q403 3C
Refer to the schematic diagram for the values
of resistors and capacitors.
15
DPX302,DPX-MP2100
D108
Q4
Q104
Q3
Q8
Q11
Q2
Q107
D3
D4
D103
0
7
Q102
Q106
Q108
Q109
Q111
Q112
D106
Q6
D109
D111
Q10
0
5
Q306
Q9
Q5
D1
Q7 Q1
D101
J1
CN5
IC1
IC3
IC5
IC12
R133
C102
R115
R243
R245
R247
R260
W998
R3
R113
R114
R124
R125
C4
1
04
C105
CP203
C109
C208
C45
R107
R108
R111
1
12
R116
R118
R123
R128
R
259
R45
C103
CP202
CP206
CP207
CP209
202
R1 R2
R4
R9
R101
R102
R103
R110
R117
R122
R201
R204
R213
R233
R239
R240
R241
R242
R257
R258
R311
1
2
R263
R17
R18
C106
R132
BE
BE
EB
BE
BE
BE
BE BE
BE
BE
E
BE
BE
BE
BE
BE
BE
BE
BE
BE
S
DA SCL
W101
C201
C5
L2
C8
W900
C1
C11
C101
L1
W115
W116
W117
C12
C9
W103
C18
C6
W108
C3
W105
R126
W107
C20
L3
W106
W102
W112
W111
W104
W109
W114
W113
GIO
100
1
76
5026
25
75
51
5
1
EB
42
EB
15
15
916
81

16
DPX302,DPX-MP2100
KLMNO
1
2
3
4
5
6
7
PC BOARD (FOIL SIDE VIEW)
R432
R5
C202
C206
C207
C209
L201
R210
R212
R224
R227
R228
R234
R235
R313
R11
C110
R316
R317
R318
R319 C301
C205
C404
R12
R104
R202
R203
R207
R215
R229
R230
R236
R237
R244
R249
R250
R254
R524
C19
C302
C303
C
C407
R31
R106
R127
R261
R310
SCL
SDA
R401
R509
R511
R520
REMO
DATA
CLK
CE
R521
R522
R523
R15
R13
R39
43
21
BE
BE
BE
D2
Q103
D503
D504 D507
D508
D509
D510
D10
Q12
D102
D104
Q101
D514
IC7
ELECTRIC UNIT
X34-414x-xx (J76-0173-22)

17
DPX302,DPX-MP2100
TSRQP
1
2
3
4
5
6
7
Refer to the schematic diagram for the values
of resistors and capacitors.
X34-414x-xx
Ref. No. Address
IC7 5N
Q12 6L
Q101 3N
Q103 3M
Q115 4P
Q116 4P
Q300 4Q
Q301 4Q
L303
R321
C305
C309
L304 L302
C307
C429
R422
R425
C406
C407
C413
C414 C426
C427
C510
C511
R302
R303
R304
R305 R306
R307
R308
R309 R310
R320
R326
R401
R423
R424
R433
R434
R508
R509
R510
R511
R512
R513
R514
R515
R516
R517
R518
C423
C424
BE
BE
BE
BE
Q300
Q115
Q116
D301
D404
D405
D406
D408
D409
D520
D515
Q301
D514
D513
D519
D518

18
DPX302,DPX-MP2100
UVWXY
1
2
3
4
5
6
7
6
54321
EJECT
AUTO SRC
EQ
141
GND
VO VCC
ATT
VOL AUD
DISP
RESET
P1
J2
D2
D3
D4
D5
D6
D7
D8
D9
D10
D12
D13
D14
D15
D16
D17
D20
D21
D22
D26
D27
S5S6 S8 S9
S10 S12
S11
ED1
S1
S3
S2
S4 S7
S15
S13
S14
IC1
SWITCH UNIT X16-394x-xx (J76-0386-02)
X16-394x-xx
Ref. No. Address
IC1 3X
PC BOARD (COMPONENT SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.

ADACABAAZ
1
2
3
4
5
6
7
X16-394x-xx
Ref. No. Address
Q1
Q2
Q3
Q6
Q7
Q9
Q12
3AB
3AB
3AB
3AA
3AA
3AA
5AB
PC BOARD (FOIL SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
BE
BE
BEBEBE
EB
R18
C14
CP6
CP5
CP4
C5
R30
R31
C1
C2
C3
C4
R29
R36
CP1 CP2
CP3
R1
R2
R3
R4
R5
R6
R7
R8
R9
W2
R19
R20
R21
R22
R24
R28
R33
R39
R40
R41
R42
R43
R50
R51
C15
R45
R47
R49
BE
2
1
14
15
FL+B
PAN5V
SW VFL
13
KS1
KL5
KS4
ILL D GND
1 1
ESD
KS2
KS3
RTRY CW
KL3
KL4
KL6
KL2
VFD PAN
RST
VFD CL
REMO
ILL+B
ENC CCW
VFD SYS DT
VFD CE
VFD INH
Q12
J1
Q7
Q9
Q1
CN1
Q2
Q3
Q6
SWITCH UNIT X16-394x-xx (J76-0386-02)
19
DPX302,DPX-MP2100

20
DPX302,DPX-MP2100
AE AF AG AH AI
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5920-04
Ref. No. Address
IC2
IC11
4AF
4AF
C30
C39
C50
C57
C79
C91
C52
C32
C1 C2
C56
C34
C58
C31
C63
CP2
R41
R44
R42
R43
R57
R48
C25
C55
C64
C65
C66
C67
CP27
C24
C6
C5
CP13
X1
X2
C3 C4
C7
C8
R5 R6
R30
R56
R31
R3 R4
R8
R7
R11
R12
R1
R2
R9
R10
CP5
CP4
CP12
CP1
W20
W21
R150
R151
C101
1
1
25
26
50
4
58
45
13
S1
S2
S3
S4
IC8
IC2
IC11
CD PLAYER UNIT X32-5920-04 (J76-0231-22)